initial

.gitignore

@@ -0,0 +1,23 @@
+# Binaries for programs and plugins
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+
+# Test binary, build with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+TorrServer.iml
+.idea/
+
+src/github.com/
+src/golang.org/
+src/bazil.org/
+src/gopkg.in/
+pkg/
+bin/
+dist/

LICENSE

@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.  We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors.  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+  To protect your rights, we need to prevent others from denying you
+these rights or asking you to surrender the rights.  Therefore, you have
+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received.  You must make sure that they, too, receive
+or can get the source code.  And you must show them these terms so they
+know their rights.
+
+  Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
+
+  For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software.  For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
+
+  Some devices are designed to deny users access to install or run
+modified versions of the software inside them, although the manufacturer
+can do so.  This is fundamentally incompatible with the aim of
+protecting users' freedom to change the software.  The systematic
+pattern of such abuse occurs in the area of products for individuals to
+use, which is precisely where it is most unacceptable.  Therefore, we
+have designed this version of the GPL to prohibit the practice for those
+products.  If such problems arise substantially in other domains, we
+stand ready to extend this provision to those domains in future versions
+of the GPL, as needed to protect the freedom of users.
+
+  Finally, every program is threatened constantly by software patents.
+States should not allow patents to restrict development and use of
+software on general-purpose computers, but in those that do, we wish to
+avoid the special danger that patents applied to a free program could
+make it effectively proprietary.  To prevent this, the GPL assures that
+patents cannot be used to render the program non-free.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+                       TERMS AND CONDITIONS
+
+  0. Definitions.
+
+  "This License" refers to version 3 of the GNU General Public License.
+
+  "Copyright" also means copyright-like laws that apply to other kinds of
+works, such as semiconductor masks.
+
+  "The Program" refers to any copyrightable work licensed under this
+License.  Each licensee is addressed as "you".  "Licensees" and
+"recipients" may be individuals or organizations.
+
+  To "modify" a work means to copy from or adapt all or part of the work
+in a fashion requiring copyright permission, other than the making of an
+exact copy.  The resulting work is called a "modified version" of the
+earlier work or a work "based on" the earlier work.
+
+  A "covered work" means either the unmodified Program or a work based
+on the Program.
+
+  To "propagate" a work means to do anything with it that, without
+permission, would make you directly or secondarily liable for
+infringement under applicable copyright law, except executing it on a
+computer or modifying a private copy.  Propagation includes copying,
+distribution (with or without modification), making available to the
+public, and in some countries other activities as well.
+
+  To "convey" a work means any kind of propagation that enables other
+parties to make or receive copies.  Mere interaction with a user through
+a computer network, with no transfer of a copy, is not conveying.
+
+  An interactive user interface displays "Appropriate Legal Notices"
+to the extent that it includes a convenient and prominently visible
+feature that (1) displays an appropriate copyright notice, and (2)
+tells the user that there is no warranty for the work (except to the
+extent that warranties are provided), that licensees may convey the
+work under this License, and how to view a copy of this License.  If
+the interface presents a list of user commands or options, such as a
+menu, a prominent item in the list meets this criterion.
+
+  1. Source Code.
+
+  The "source code" for a work means the preferred form of the work
+for making modifications to it.  "Object code" means any non-source
+form of a work.
+
+  A "Standard Interface" means an interface that either is an official
+standard defined by a recognized standards body, or, in the case of
+interfaces specified for a particular programming language, one that
+is widely used among developers working in that language.
+
+  The "System Libraries" of an executable work include anything, other
+than the work as a whole, that (a) is included in the normal form of
+packaging a Major Component, but which is not part of that Major
+Component, and (b) serves only to enable use of the work with that
+Major Component, or to implement a Standard Interface for which an
+implementation is available to the public in source code form.  A
+"Major Component", in this context, means a major essential component
+(kernel, window system, and so on) of the specific operating system
+(if any) on which the executable work runs, or a compiler used to
+produce the work, or an object code interpreter used to run it.
+
+  The "Corresponding Source" for a work in object code form means all
+the source code needed to generate, install, and (for an executable
+work) run the object code and to modify the work, including scripts to
+control those activities.  However, it does not include the work's
+System Libraries, or general-purpose tools or generally available free
+programs which are used unmodified in performing those activities but
+which are not part of the work.  For example, Corresponding Source
+includes interface definition files associated with source files for
+the work, and the source code for shared libraries and dynamically
+linked subprograms that the work is specifically designed to require,
+such as by intimate data communication or control flow between those
+subprograms and other parts of the work.
+
+  The Corresponding Source need not include anything that users
+can regenerate automatically from other parts of the Corresponding
+Source.
+
+  The Corresponding Source for a work in source code form is that
+same work.
+
+  2. Basic Permissions.
+
+  All rights granted under this License are granted for the term of
+copyright on the Program, and are irrevocable provided the stated
+conditions are met.  This License explicitly affirms your unlimited
+permission to run the unmodified Program.  The output from running a
+covered work is covered by this License only if the output, given its
+content, constitutes a covered work.  This License acknowledges your
+rights of fair use or other equivalent, as provided by copyright law.
+
+  You may make, run and propagate covered works that you do not
+convey, without conditions so long as your license otherwise remains
+in force.  You may convey covered works to others for the sole purpose
+of having them make modifications exclusively for you, or provide you
+with facilities for running those works, provided that you comply with
+the terms of this License in conveying all material for which you do
+not control copyright.  Those thus making or running the covered works
+for you must do so exclusively on your behalf, under your direction
+and control, on terms that prohibit them from making any copies of
+your copyrighted material outside their relationship with you.
+
+  Conveying under any other circumstances is permitted solely under
+the conditions stated below.  Sublicensing is not allowed; section 10
+makes it unnecessary.
+
+  3. Protecting Users' Legal Rights From Anti-Circumvention Law.
+
+  No covered work shall be deemed part of an effective technological
+measure under any applicable law fulfilling obligations under article
+11 of the WIPO copyright treaty adopted on 20 December 1996, or
+similar laws prohibiting or restricting circumvention of such
+measures.
+
+  When you convey a covered work, you waive any legal power to forbid
+circumvention of technological measures to the extent such circumvention
+is effected by exercising rights under this License with respect to
+the covered work, and you disclaim any intention to limit operation or
+modification of the work as a means of enforcing, against the work's
+users, your or third parties' legal rights to forbid circumvention of
+technological measures.
+
+  4. Conveying Verbatim Copies.
+
+  You may convey verbatim copies of the Program's source code as you
+receive it, in any medium, provided that you conspicuously and
+appropriately publish on each copy an appropriate copyright notice;
+keep intact all notices stating that this License and any
+non-permissive terms added in accord with section 7 apply to the code;
+keep intact all notices of the absence of any warranty; and give all
+recipients a copy of this License along with the Program.
+
+  You may charge any price or no price for each copy that you convey,
+and you may offer support or warranty protection for a fee.
+
+  5. Conveying Modified Source Versions.
+
+  You may convey a work based on the Program, or the modifications to
+produce it from the Program, in the form of source code under the
+terms of section 4, provided that you also meet all of these conditions:
+
+    a) The work must carry prominent notices stating that you modified
+    it, and giving a relevant date.
+
+    b) The work must carry prominent notices stating that it is
+    released under this License and any conditions added under section
+    7.  This requirement modifies the requirement in section 4 to
+    "keep intact all notices".
+
+    c) You must license the entire work, as a whole, under this
+    License to anyone who comes into possession of a copy.  This
+    License will therefore apply, along with any applicable section 7
+    additional terms, to the whole of the work, and all its parts,
+    regardless of how they are packaged.  This License gives no
+    permission to license the work in any other way, but it does not
+    invalidate such permission if you have separately received it.
+
+    d) If the work has interactive user interfaces, each must display
+    Appropriate Legal Notices; however, if the Program has interactive
+    interfaces that do not display Appropriate Legal Notices, your
+    work need not make them do so.
+
+  A compilation of a covered work with other separate and independent
+works, which are not by their nature extensions of the covered work,
+and which are not combined with it such as to form a larger program,
+in or on a volume of a storage or distribution medium, is called an
+"aggregate" if the compilation and its resulting copyright are not
+used to limit the access or legal rights of the compilation's users
+beyond what the individual works permit.  Inclusion of a covered work
+in an aggregate does not cause this License to apply to the other
+parts of the aggregate.
+
+  6. Conveying Non-Source Forms.
+
+  You may convey a covered work in object code form under the terms
+of sections 4 and 5, provided that you also convey the
+machine-readable Corresponding Source under the terms of this License,
+in one of these ways:
+
+    a) Convey the object code in, or embodied in, a physical product
+    (including a physical distribution medium), accompanied by the
+    Corresponding Source fixed on a durable physical medium
+    customarily used for software interchange.
+
+    b) Convey the object code in, or embodied in, a physical product
+    (including a physical distribution medium), accompanied by a
+    written offer, valid for at least three years and valid for as
+    long as you offer spare parts or customer support for that product
+    model, to give anyone who possesses the object code either (1) a
+    copy of the Corresponding Source for all the software in the
+    product that is covered by this License, on a durable physical
+    medium customarily used for software interchange, for a price no
+    more than your reasonable cost of physically performing this
+    conveying of source, or (2) access to copy the
+    Corresponding Source from a network server at no charge.
+
+    c) Convey individual copies of the object code with a copy of the
+    written offer to provide the Corresponding Source.  This
+    alternative is allowed only occasionally and noncommercially, and
+    only if you received the object code with such an offer, in accord
+    with subsection 6b.
+
+    d) Convey the object code by offering access from a designated
+    place (gratis or for a charge), and offer equivalent access to the
+    Corresponding Source in the same way through the same place at no
+    further charge.  You need not require recipients to copy the
+    Corresponding Source along with the object code.  If the place to
+    copy the object code is a network server, the Corresponding Source
+    may be on a different server (operated by you or a third party)
+    that supports equivalent copying facilities, provided you maintain
+    clear directions next to the object code saying where to find the
+    Corresponding Source.  Regardless of what server hosts the
+    Corresponding Source, you remain obligated to ensure that it is
+    available for as long as needed to satisfy these requirements.
+
+    e) Convey the object code using peer-to-peer transmission, provided
+    you inform other peers where the object code and Corresponding
+    Source of the work are being offered to the general public at no
+    charge under subsection 6d.
+
+  A separable portion of the object code, whose source code is excluded
+from the Corresponding Source as a System Library, need not be
+included in conveying the object code work.
+
+  A "User Product" is either (1) a "consumer product", which means any
+tangible personal property which is normally used for personal, family,
+or household purposes, or (2) anything designed or sold for incorporation
+into a dwelling.  In determining whether a product is a consumer product,
+doubtful cases shall be resolved in favor of coverage.  For a particular
+product received by a particular user, "normally used" refers to a
+typical or common use of that class of product, regardless of the status
+of the particular user or of the way in which the particular user
+actually uses, or expects or is expected to use, the product.  A product
+is a consumer product regardless of whether the product has substantial
+commercial, industrial or non-consumer uses, unless such uses represent
+the only significant mode of use of the product.
+
+  "Installation Information" for a User Product means any methods,
+procedures, authorization keys, or other information required to install
+and execute modified versions of a covered work in that User Product from
+a modified version of its Corresponding Source.  The information must
+suffice to ensure that the continued functioning of the modified object
+code is in no case prevented or interfered with solely because
+modification has been made.
+
+  If you convey an object code work under this section in, or with, or
+specifically for use in, a User Product, and the conveying occurs as
+part of a transaction in which the right of possession and use of the
+User Product is transferred to the recipient in perpetuity or for a
+fixed term (regardless of how the transaction is characterized), the
+Corresponding Source conveyed under this section must be accompanied
+by the Installation Information.  But this requirement does not apply
+if neither you nor any third party retains the ability to install
+modified object code on the User Product (for example, the work has
+been installed in ROM).
+
+  The requirement to provide Installation Information does not include a
+requirement to continue to provide support service, warranty, or updates
+for a work that has been modified or installed by the recipient, or for
+the User Product in which it has been modified or installed.  Access to a
+network may be denied when the modification itself materially and
+adversely affects the operation of the network or violates the rules and
+protocols for communication across the network.
+
+  Corresponding Source conveyed, and Installation Information provided,
+in accord with this section must be in a format that is publicly
+documented (and with an implementation available to the public in
+source code form), and must require no special password or key for
+unpacking, reading or copying.
+
+  7. Additional Terms.
+
+  "Additional permissions" are terms that supplement the terms of this
+License by making exceptions from one or more of its conditions.
+Additional permissions that are applicable to the entire Program shall
+be treated as though they were included in this License, to the extent
+that they are valid under applicable law.  If additional permissions
+apply only to part of the Program, that part may be used separately
+under those permissions, but the entire Program remains governed by
+this License without regard to the additional permissions.
+
+  When you convey a copy of a covered work, you may at your option
+remove any additional permissions from that copy, or from any part of
+it.  (Additional permissions may be written to require their own
+removal in certain cases when you modify the work.)  You may place
+additional permissions on material, added by you to a covered work,
+for which you have or can give appropriate copyright permission.
+
+  Notwithstanding any other provision of this License, for material you
+add to a covered work, you may (if authorized by the copyright holders of
+that material) supplement the terms of this License with terms:
+
+    a) Disclaiming warranty or limiting liability differently from the
+    terms of sections 15 and 16 of this License; or
+
+    b) Requiring preservation of specified reasonable legal notices or
+    author attributions in that material or in the Appropriate Legal
+    Notices displayed by works containing it; or
+
+    c) Prohibiting misrepresentation of the origin of that material, or
+    requiring that modified versions of such material be marked in
+    reasonable ways as different from the original version; or
+
+    d) Limiting the use for publicity purposes of names of licensors or
+    authors of the material; or
+
+    e) Declining to grant rights under trademark law for use of some
+    trade names, trademarks, or service marks; or
+
+    f) Requiring indemnification of licensors and authors of that
+    material by anyone who conveys the material (or modified versions of
+    it) with contractual assumptions of liability to the recipient, for
+    any liability that these contractual assumptions directly impose on
+    those licensors and authors.
+
+  All other non-permissive additional terms are considered "further
+restrictions" within the meaning of section 10.  If the Program as you
+received it, or any part of it, contains a notice stating that it is
+governed by this License along with a term that is a further
+restriction, you may remove that term.  If a license document contains
+a further restriction but permits relicensing or conveying under this
+License, you may add to a covered work material governed by the terms
+of that license document, provided that the further restriction does
+not survive such relicensing or conveying.
+
+  If you add terms to a covered work in accord with this section, you
+must place, in the relevant source files, a statement of the
+additional terms that apply to those files, or a notice indicating
+where to find the applicable terms.
+
+  Additional terms, permissive or non-permissive, may be stated in the
+form of a separately written license, or stated as exceptions;
+the above requirements apply either way.
+
+  8. Termination.
+
+  You may not propagate or modify a covered work except as expressly
+provided under this License.  Any attempt otherwise to propagate or
+modify it is void, and will automatically terminate your rights under
+this License (including any patent licenses granted under the third
+paragraph of section 11).
+
+  However, if you cease all violation of this License, then your
+license from a particular copyright holder is reinstated (a)
+provisionally, unless and until the copyright holder explicitly and
+finally terminates your license, and (b) permanently, if the copyright
+holder fails to notify you of the violation by some reasonable means
+prior to 60 days after the cessation.
+
+  Moreover, your license from a particular copyright holder is
+reinstated permanently if the copyright holder notifies you of the
+violation by some reasonable means, this is the first time you have
+received notice of violation of this License (for any work) from that
+copyright holder, and you cure the violation prior to 30 days after
+your receipt of the notice.
+
+  Termination of your rights under this section does not terminate the
+licenses of parties who have received copies or rights from you under
+this License.  If your rights have been terminated and not permanently
+reinstated, you do not qualify to receive new licenses for the same
+material under section 10.
+
+  9. Acceptance Not Required for Having Copies.
+
+  You are not required to accept this License in order to receive or
+run a copy of the Program.  Ancillary propagation of a covered work
+occurring solely as a consequence of using peer-to-peer transmission
+to receive a copy likewise does not require acceptance.  However,
+nothing other than this License grants you permission to propagate or
+modify any covered work.  These actions infringe copyright if you do
+not accept this License.  Therefore, by modifying or propagating a
+covered work, you indicate your acceptance of this License to do so.
+
+  10. Automatic Licensing of Downstream Recipients.
+
+  Each time you convey a covered work, the recipient automatically
+receives a license from the original licensors, to run, modify and
+propagate that work, subject to this License.  You are not responsible
+for enforcing compliance by third parties with this License.
+
+  An "entity transaction" is a transaction transferring control of an
+organization, or substantially all assets of one, or subdividing an
+organization, or merging organizations.  If propagation of a covered
+work results from an entity transaction, each party to that
+transaction who receives a copy of the work also receives whatever
+licenses to the work the party's predecessor in interest had or could
+give under the previous paragraph, plus a right to possession of the
+Corresponding Source of the work from the predecessor in interest, if
+the predecessor has it or can get it with reasonable efforts.
+
+  You may not impose any further restrictions on the exercise of the
+rights granted or affirmed under this License.  For example, you may
+not impose a license fee, royalty, or other charge for exercise of
+rights granted under this License, and you may not initiate litigation
+(including a cross-claim or counterclaim in a lawsuit) alleging that
+any patent claim is infringed by making, using, selling, offering for
+sale, or importing the Program or any portion of it.
+
+  11. Patents.
+
+  A "contributor" is a copyright holder who authorizes use under this
+License of the Program or a work on which the Program is based.  The
+work thus licensed is called the contributor's "contributor version".
+
+  A contributor's "essential patent claims" are all patent claims
+owned or controlled by the contributor, whether already acquired or
+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version.  For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
+this License.
+
+  Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
+make, use, sell, offer for sale, import and otherwise run, modify and
+propagate the contents of its contributor version.
+
+  In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement).  To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+  If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients.  "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+  If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+  A patent license is "discriminatory" if it does not include within
+the scope of its coverage, prohibits the exercise of, or is
+conditioned on the non-exercise of one or more of the rights that are
+specifically granted under this License.  You may not convey a covered
+work if you are a party to an arrangement with a third party that is
+in the business of distributing software, under which you make payment
+to the third party based on the extent of your activity of conveying
+the work, and under which the third party grants, to any of the
+parties who would receive the covered work from you, a discriminatory
+patent license (a) in connection with copies of the covered work
+conveyed by you (or copies made from those copies), or (b) primarily
+for and in connection with specific products or compilations that
+contain the covered work, unless you entered into that arrangement,
+or that patent license was granted, prior to 28 March 2007.
+
+  Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+  12. No Surrender of Others' Freedom.
+
+  If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you may
+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.

README.md

@@ -0,0 +1,19 @@
+## TorrServer
+TorrServer, torrent to http
+
+### Donate:
+[PayPal](https://www.paypal.me/yourok)
+
+[Yandex.Деньги](https://money.yandex.ru/to/410013733697114/100)
+
+### Thanks to everyone who tested and helped
+
+###### **kuzzman** [tv-box.pp.ua](http://tv-box.pp.ua/)
+
+###### **MadAndron**
+
+###### **SpAwN_LMG**
+
+###### **Zivio**
+
+###### **Tw1cker Руслан Пахнев** [github.com/Nemiroff](https://github.com/Nemiroff)

build-all.sh

@@ -0,0 +1,158 @@
+#!/bin/bash
+#
+# GoLang cross-compile snippet for Go 1.6+ based loosely on Dave Chaney's cross-compile script:
+# http://dave.cheney.net/2012/09/08/an-introduction-to-cross-compilation-with-go
+#
+# To use:
+#
+#   $ cd ~/path-to/my-awesome-project
+#   $ go-build-all
+#
+# Features:
+#
+#   * Cross-compiles to multiple machine types and architectures.
+#   * Uses the current directory name as the output name...
+#     * ...unless you supply an source file: $ go-build-all main.go
+#   * Windows binaries are named .exe.
+#   * ARM v5, v6, v7 and v8 (arm64) support
+#
+# ARM Support:
+#
+# You must read https://github.com/golang/go/wiki/GoArm for the specifics of running
+# Linux/BSD-style kernels and what kernel modules are needed for the target platform.
+# While not needed for cross-compilation of this script, you're users will need to ensure
+# the correct modules are included.
+#
+# Requirements:
+#
+#   * GoLang 1.6+ (for mips and ppc), 1.5 for non-mips/ppc.
+#   * CD to directory of the binary you are compiling. $PWD is used here.
+#
+# For 1.4 and earlier, see http://dave.cheney.net/2012/09/08/an-introduction-to-cross-compilation-with-go
+#
+
+# This PLATFORMS list is refreshed after every major Go release.
+# Though more platforms may be supported (freebsd/386), they have been removed
+# from the standard ports/downloads and therefore removed from this list.
+#
+PLATFORMS=""
+PLATFORMS="$PLATFORMS darwin/amd64" # amd64 only as of go1.5
+PLATFORMS="$PLATFORMS windows/amd64 windows/386" # arm compilation not available for Windows
+PLATFORMS="$PLATFORMS linux/amd64 linux/386"
+# PLATFORMS="$PLATFORMS linux/ppc64 linux/ppc64le"
+PLATFORMS="$PLATFORMS linux/mips linux/mipsle linux/mips64 linux/mips64le" # experimental in go1.6
+#PLATFORMS="$PLATFORMS linux/arm linux/arm64"
+# PLATFORMS="$PLATFORMS freebsd/amd64"
+# PLATFORMS="$PLATFORMS netbsd/amd64" # amd64 only as of go1.6
+# PLATFORMS="$PLATFORMS openbsd/amd64" # amd64 only as of go1.6
+# PLATFORMS="$PLATFORMS dragonfly/amd64" # amd64 only as of go1.5
+# PLATFORMS="$PLATFORMS plan9/amd64 plan9/386" # as of go1.4
+# PLATFORMS="$PLATFORMS solaris/amd64" # as of go1.3
+
+# ARMBUILDS lists the platforms that are currently supported.  From this list
+# we generate the following architectures:
+#
+#   ARM64 (aka ARMv8) <- only supported on linux and darwin builds (go1.6)
+#   ARMv7
+#   ARMv6
+#   ARMv5
+#
+# Some words of caution from the master:
+#
+#   @dfc: you'll have to use gomobile to build for darwin/arm64 [and others]
+#   @dfc: that target expects that you're bulding for a mobile phone
+#   @dfc: iphone 5 and below, ARMv7, iphone 3 and below ARMv6, iphone 5s and above arm64
+# 
+# PLATFORMS_ARM="linux freebsd netbsd"
+PLATFORMS_ARM="linux"
+
+##############################################################
+# Shouldn't really need to modify anything below this line.  #
+##############################################################
+
+type setopt >/dev/null 2>&1
+
+export GOPATH="${PWD}"
+
+SCRIPT_NAME=`basename "$0"`
+FAILURES=""
+SOURCE_FILE="dist/TorrServer"
+CURRENT_DIRECTORY=${PWD##*/}
+OUTPUT=${SOURCE_FILE:-$CURRENT_DIRECTORY} # if no src file given, use current dir name
+
+for PLATFORM in $PLATFORMS; do
+  GOOS=${PLATFORM%/*}
+  GOARCH=${PLATFORM#*/}
+  BIN_FILENAME="${OUTPUT}-${GOOS}-${GOARCH}"
+  if [[ "${GOOS}" == "windows" ]]; then BIN_FILENAME="${BIN_FILENAME}.exe"; fi
+  CMD="GOOS=${GOOS} GOARCH=${GOARCH} go build -o ${BIN_FILENAME} main"
+  echo "${CMD}"
+  eval $CMD || FAILURES="${FAILURES} ${PLATFORM}"
+done
+
+# ARM builds
+if [[ $PLATFORMS_ARM == *"linux"* ]]; then 
+  CMD="GOOS=linux GOARCH=arm64 go build -o ${OUTPUT}-linux-arm64 main"
+  echo "${CMD}"
+  eval $CMD || FAILURES="${FAILURES} ${PLATFORM}"
+fi
+
+for GOOS in $PLATFORMS_ARM; do
+  GOARCH="arm"
+  # build for each ARM version
+  for GOARM in 7 6 5; do
+    BIN_FILENAME="${OUTPUT}-${GOOS}-${GOARCH}${GOARM}"
+   	CMD="GOARM=${GOARM} GOOS=${GOOS} GOARCH=${GOARCH} go build -o ${BIN_FILENAME} main"
+    echo "${CMD}"
+    eval "${CMD}" || FAILURES="${FAILURES} ${GOOS}/${GOARCH}${GOARM}" 
+  done
+done
+
+# eval errors
+if [[ "${FAILURES}" != "" ]]; then
+  echo ""
+  echo "${SCRIPT_NAME} failed on: ${FAILURES}"
+  exit 1
+fi
+
+export CGO_ENABLED=1
+export GOOS=android 
+export LDFLAGS="-s -w"
+
+export NDK_TOOLCHAIN=/home/yourok/Space/Projects/GO/TorrServer/pkg/gomobile/ndk-toolchains/arm
+export CC=$NDK_TOOLCHAIN/bin/arm-linux-androideabi-clang
+export CXX=$NDK_TOOLCHAIN/bin/arm-linux-androideabi-clang++
+export GOARCH=arm 
+export GOARM=7
+BIN_FILENAME="dist/TorrServer-${GOOS}-${GOARCH}${GOARM}"
+echo "Android ${BIN_FILENAME}"
+go build -ldflags="${LDFLAGS}" -o ${BIN_FILENAME} main
+
+export NDK_TOOLCHAIN=/home/yourok/Space/Projects/GO/TorrServer/pkg/gomobile/ndk-toolchains/arm64
+export CC=$NDK_TOOLCHAIN/bin/aarch64-linux-android-clang
+export CXX=$NDK_TOOLCHAIN/bin/aarch64-linux-android-clang++
+export GOARCH=arm64
+export GOARM=""
+BIN_FILENAME="dist/TorrServer-${GOOS}-${GOARCH}${GOARM}"
+echo "Android ${BIN_FILENAME}"
+go build -ldflags="${LDFLAGS}" -o ${BIN_FILENAME} main
+
+export NDK_TOOLCHAIN=/home/yourok/Space/Projects/GO/TorrServer/pkg/gomobile/ndk-toolchains/x86
+export CC=$NDK_TOOLCHAIN/bin/i686-linux-android-clang
+export CXX=$NDK_TOOLCHAIN/bin/i686-linux-android-clang++
+export GOARCH=386
+export GOARM=""
+BIN_FILENAME="dist/TorrServer-${GOOS}-${GOARCH}${GOARM}"
+echo "Android ${BIN_FILENAME}"
+go build -ldflags="${LDFLAGS}" -o ${BIN_FILENAME} main
+
+export NDK_TOOLCHAIN=/home/yourok/Space/Projects/GO/TorrServer/pkg/gomobile/ndk-toolchains/x86_64
+export CC=$NDK_TOOLCHAIN/bin/x86_64-linux-android-clang
+export CXX=$NDK_TOOLCHAIN/bin/x86_64-linux-android-clang++
+export GOARCH=amd64
+export GOARM=""
+BIN_FILENAME="dist/TorrServer-${GOOS}-${GOARCH}${GOARM}"
+echo "Android ${BIN_FILENAME}"
+go build -ldflags="${LDFLAGS}" -o ${BIN_FILENAME} main
+
+# ./compile.sh

compile_init.sh

@@ -0,0 +1,7 @@
+#!/bin/bash
+set -x
+export PATH=$PATH:/usr/local/go/bin/
+export GOPATH=`pwd`
+export ANDROID_HOME=$HOME'/Android/Sdk'
+go get golang.org/x/mobile/cmd/gomobile
+./bin/gomobile init -v -ndk /home/yourok/Android/Ndk/android-ndk/

make.go

@@ -0,0 +1,84 @@
+package main
+
+import (
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"os/exec"
+	"strings"
+	"time"
+)
+
+func main() {
+	if len(os.Args) < 2 {
+		fmt.Println("Need version")
+		os.Exit(1)
+	}
+	release_version := os.Args[1]
+	isTest := false
+	if len(os.Args) > 2 {
+		isTest = true
+	}
+
+	fmt.Println("\nMake:", release_version, "\n")
+	cmd := exec.Command("./build-all.sh")
+	cmd.Stderr = os.Stderr
+	cmd.Stdout = os.Stdout
+	if err := cmd.Run(); err != nil {
+		fmt.Println("Error compile", err)
+		os.Exit(1)
+	}
+	files, err := ioutil.ReadDir("dist")
+	if err != nil {
+		fmt.Println("Error read dist")
+		os.Exit(1)
+	}
+
+	fmt.Println("\nMake json")
+	js := Release{}
+	js.Name = "TorrServer"
+	js.Version = release_version
+	js.BuildDate = time.Now().Format("02.01.2006")
+	js.Links = make(map[string]string)
+	for _, f := range files {
+		arch := strings.TrimPrefix(f.Name(), "TorrServer-")
+		js.Links[arch] = "https://github.com/YouROK/TorrServer/releases/download/" + release_version + "/" + f.Name()
+	}
+	buf, err := json.MarshalIndent(&js, "", " ")
+	if err != nil {
+		fmt.Println("Error make json")
+		os.Exit(1)
+	}
+	if isTest {
+		err = ioutil.WriteFile("test.json", buf, 0666)
+	} else {
+		err = ioutil.WriteFile("release.json", buf, 0666)
+	}
+	if err != nil {
+		fmt.Println("Error write to json file:", err)
+		os.Exit(1)
+	}
+	fmt.Println("\n\nEnter tag manually:\n")
+	fmt.Println("git push origin", release_version)
+	fmt.Println()
+}
+
+type Release struct {
+	Name      string
+	Version   string
+	BuildDate string
+	Links     map[string]string
+}
+
+//"update": {
+//"name": "TorrServer",
+//"version": "1.0.61",
+//"build_date": "20.07.2018",
+//"links":[
+//{"android-386":"https://github.com/YouROK/TorrServe/releases/download/1.0.61/TorrServer-android-386"},
+//{"android-amd64":"https://github.com/YouROK/TorrServe/releases/download/1.0.61/TorrServer-android-amd64"},
+//{"android-arm7":"https://github.com/YouROK/TorrServe/releases/download/1.0.61/TorrServer-android-arm7"},
+//{"android-arm64":"https://github.com/YouROK/TorrServe/releases/download/1.0.61/TorrServer-android-arm64"},
+//]
+//}

make_release.sh

@@ -0,0 +1,3 @@
+#!/bin/bash
+
+go run make.go $@

release.json

@@ -0,0 +1,24 @@
+{
+ "Name": "TorrServer",
+ "Version": "1.1.65",
+ "BuildDate": "29.08.2018",
+ "Links": {
+  "android-386": "https://github.com/YouROK/TorrServer/releases/download/1.1.65/TorrServer-android-386",
+  "android-amd64": "https://github.com/YouROK/TorrServer/releases/download/1.1.65/TorrServer-android-amd64",
+  "android-arm64": "https://github.com/YouROK/TorrServer/releases/download/1.1.65/TorrServer-android-arm64",
+  "android-arm7": "https://github.com/YouROK/TorrServer/releases/download/1.1.65/TorrServer-android-arm7",
+  "darwin-amd64": "https://github.com/YouROK/TorrServer/releases/download/1.1.65/TorrServer-darwin-amd64",
+  "linux-386": "https://github.com/YouROK/TorrServer/releases/download/1.1.65/TorrServer-linux-386",
+  "linux-amd64": "https://github.com/YouROK/TorrServer/releases/download/1.1.65/TorrServer-linux-amd64",
+  "linux-arm5": "https://github.com/YouROK/TorrServer/releases/download/1.1.65/TorrServer-linux-arm5",
+  "linux-arm6": "https://github.com/YouROK/TorrServer/releases/download/1.1.65/TorrServer-linux-arm6",
+  "linux-arm64": "https://github.com/YouROK/TorrServer/releases/download/1.1.65/TorrServer-linux-arm64",
+  "linux-arm7": "https://github.com/YouROK/TorrServer/releases/download/1.1.65/TorrServer-linux-arm7",
+  "linux-mips": "https://github.com/YouROK/TorrServer/releases/download/1.1.65/TorrServer-linux-mips",
+  "linux-mips64": "https://github.com/YouROK/TorrServer/releases/download/1.1.65/TorrServer-linux-mips64",
+  "linux-mips64le": "https://github.com/YouROK/TorrServer/releases/download/1.1.65/TorrServer-linux-mips64le",
+  "linux-mipsle": "https://github.com/YouROK/TorrServer/releases/download/1.1.65/TorrServer-linux-mipsle",
+  "windows-386.exe": "https://github.com/YouROK/TorrServer/releases/download/1.1.65/TorrServer-windows-386.exe",
+  "windows-amd64.exe": "https://github.com/YouROK/TorrServer/releases/download/1.1.65/TorrServer-windows-amd64.exe"
+ }
+}

src/main/main.go

@@ -0,0 +1,90 @@
+package main
+
+import (
+	"bytes"
+	"errors"
+	"fmt"
+	"net/http"
+	"os"
+	"time"
+
+	"github.com/alexflint/go-arg"
+	"server"
+	"server/settings"
+	"server/version"
+)
+
+type args struct {
+	Port string `arg:"-p" help:"web server port"`
+	Path string `arg:"-d" help:"database path"`
+	Add  string `arg:"-a" help:"add torrent link and exit"`
+	Kill bool   `arg:"-k" help:"dont kill program on signal"`
+}
+
+func (args) Version() string {
+	return "TorrServer " + version.Version
+}
+
+var params args
+
+func main() {
+	//test()
+	//return
+	//for _, g := range tmdb.GetMovieGenres("ru") {
+	//	fmt.Println(g.Name, g.ID)
+	//}
+	//return
+
+	//movs, _ := tmdb.DiscoverShows(map[string]string{}, 1)
+	//js, _ := json.MarshalIndent(movs, "", " ")
+	//fmt.Println(string(js))
+	//return
+
+	arg.MustParse(&params)
+
+	if params.Path == "" {
+		params.Path, _ = os.Getwd()
+	}
+
+	if params.Port == "" {
+		params.Port = "8090"
+	}
+
+	if params.Add != "" {
+		add()
+	}
+
+	Preconfig(params.Kill)
+
+	server.Start(params.Path, params.Port)
+	settings.SaveSettings()
+	fmt.Println(server.WaitServer())
+	time.Sleep(time.Second * 3)
+	os.Exit(0)
+}
+
+func add() {
+	err := addRemote()
+	if err != nil {
+		fmt.Println("Error add torrent:", err)
+		os.Exit(-1)
+	}
+
+	fmt.Println("Added ok")
+	os.Exit(0)
+}
+
+func addRemote() error {
+	url := "http://localhost:" + params.Port + "/torrent/add"
+	fmt.Println("Add torrent link:", params.Add, "\n", url)
+
+	json := `{"Link":"` + params.Add + `"}`
+	resp, err := http.Post(url, "text/html; charset=utf-8", bytes.NewBufferString(json))
+	if err != nil {
+		return err
+	}
+	if resp.StatusCode != 200 {
+		return errors.New(resp.Status)
+	}
+	return nil
+}

src/main/preconfig_pos.go

@@ -0,0 +1,49 @@
+// +build !windows
+
+package main
+
+import (
+	"context"
+	"fmt"
+	"net"
+	"os"
+	"os/signal"
+	"syscall"
+)
+
+func Preconfig(kill bool) {
+	if kill {
+		sigc := make(chan os.Signal, 1)
+		signal.Notify(sigc,
+			syscall.SIGHUP,
+			syscall.SIGINT,
+			syscall.SIGSTOP,
+			syscall.SIGPIPE,
+			syscall.SIGTERM,
+			syscall.SIGQUIT)
+		go func() {
+			for s := range sigc {
+				fmt.Println("Signal catched:", s)
+				fmt.Println("For stop server, close in web")
+			}
+		}()
+	}
+
+	//dns resover
+	addrs, err := net.LookupHost("www.themoviedb.org")
+	if len(addrs) == 0 {
+		fmt.Println("Check dns", addrs, err)
+
+		fn := func(ctx context.Context, network, address string) (net.Conn, error) {
+			d := net.Dialer{}
+			return d.DialContext(ctx, "udp", "1.1.1.1:53")
+		}
+
+		net.DefaultResolver = &net.Resolver{
+			Dial: fn,
+		}
+
+		addrs, err = net.LookupHost("www.themoviedb.org")
+		fmt.Println("Check new dns", addrs, err)
+	}
+}

src/main/preconfig_win.go

@@ -0,0 +1,7 @@
+// +build windows
+
+package main
+
+func Preconfig(kill bool) {
+
+}

src/main/test.go

@@ -0,0 +1,74 @@
+package main
+
+import (
+	"fmt"
+	"log"
+	"os"
+	"sync"
+	"time"
+
+	"server/utils"
+
+	"github.com/anacrolix/torrent"
+)
+
+func test() {
+	config := torrent.NewDefaultClientConfig()
+
+	config.EstablishedConnsPerTorrent = 100
+	config.HalfOpenConnsPerTorrent = 65
+	config.DisableIPv6 = true
+	config.NoDHT = true
+
+	client, err := torrent.NewClient(config)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	//Ubuntu
+	t, err := client.AddMagnet("magnet:?xt=urn:btih:e4be9e4db876e3e3179778b03e906297be5c8dbe&dn=ubuntu-18.04-desktop-amd64.iso&tr=http%3a%2f%2ftorrent.ubuntu.com%3a6969%2fannounce&tr=http%3a%2f%2fipv6.torrent.ubuntu.com%3a6969%2fannounce")
+	if err != nil {
+		log.Fatal(err)
+	}
+	<-t.GotInfo()
+	file := t.Files()[0]
+
+	reader := file.NewReader()
+	var wa sync.WaitGroup
+	wa.Add(1)
+
+	go func() {
+		buf := make([]byte, t.Info().PieceLength)
+		for {
+			_, err := reader.Read(buf)
+			if err != nil {
+				break
+			}
+		}
+		wa.Done()
+	}()
+
+	go func() {
+		cl := t.Closed()
+		lastTimeSpeed := time.Now()
+		DownloadSpeed := 0.0
+		BytesReadUsefulData := int64(0)
+		for {
+			select {
+			case <-cl:
+				return
+			default:
+				client.WriteStatus(os.Stdout)
+				st := t.Stats()
+				deltaDlBytes := st.BytesReadUsefulData.Int64() - BytesReadUsefulData
+				deltaTime := time.Since(lastTimeSpeed).Seconds()
+				DownloadSpeed = float64(deltaDlBytes) / deltaTime
+				BytesReadUsefulData = st.BytesReadUsefulData.Int64()
+				lastTimeSpeed = time.Now()
+				fmt.Println("DL speed:", utils.Format(DownloadSpeed))
+			}
+			time.Sleep(time.Second)
+		}
+	}()
+	wa.Wait()
+}

src/server/Server.go

@@ -0,0 +1,33 @@
+package server
+
+import (
+	"fmt"
+
+	"server/settings"
+	"server/web"
+)
+
+func Start(settingsPath, port string) {
+	settings.Path = settingsPath
+	err := settings.ReadSettings()
+	if err != nil {
+		fmt.Println("Error read settings:", err)
+	}
+	if port == "" {
+		port = "8090"
+	}
+	server.Start(port)
+}
+
+func WaitServer() string {
+	err := server.Wait()
+	if err != nil {
+		return err.Error()
+	}
+	return ""
+}
+
+func Stop() {
+	go server.Stop()
+	settings.CloseDB()
+}

src/server/settings/DB.go

@@ -0,0 +1,52 @@
+package settings
+
+import (
+	"fmt"
+	"path/filepath"
+
+	"github.com/boltdb/bolt"
+)
+
+var (
+	db             *bolt.DB
+	dbInfosName    = []byte("Infos")
+	dbTorrentsName = []byte("Torrents")
+	dbSettingsName = []byte("Settings")
+	Path           string
+)
+
+func openDB() error {
+	if db != nil {
+		return nil
+	}
+
+	var err error
+	db, err = bolt.Open(filepath.Join(Path, "torrserver.db"), 0666, nil)
+	if err != nil {
+		fmt.Print(err)
+		return err
+	}
+
+	err = db.Update(func(tx *bolt.Tx) error {
+		_, err = tx.CreateBucketIfNotExists(dbSettingsName)
+		if err != nil {
+			return fmt.Errorf("could not create Settings bucket: %v", err)
+		}
+		_, err = tx.CreateBucketIfNotExists(dbTorrentsName)
+		if err != nil {
+			return fmt.Errorf("could not create Torrents bucket: %v", err)
+		}
+		return nil
+	})
+	if err != nil {
+		CloseDB()
+	}
+	return err
+}
+
+func CloseDB() {
+	if db != nil {
+		db.Close()
+		db = nil
+	}
+}

src/server/settings/Info.go

@@ -0,0 +1,61 @@
+package settings
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/boltdb/bolt"
+)
+
+func AddInfo(hash, info string) error {
+	err := openDB()
+	if err != nil {
+		return err
+	}
+
+	hash = strings.ToUpper(hash)
+	return db.Update(func(tx *bolt.Tx) error {
+		dbt, err := tx.CreateBucketIfNotExists([]byte(dbInfosName))
+		if err != nil {
+			return err
+		}
+
+		dbi, err := dbt.CreateBucketIfNotExists([]byte(hash))
+		if err != nil {
+			return err
+		}
+
+		err = dbi.Put([]byte("Info"), []byte(info))
+		if err != nil {
+			return fmt.Errorf("error save torrent info %v", err)
+		}
+		return nil
+	})
+}
+
+func GetInfo(hash string) string {
+	err := openDB()
+	if err != nil {
+		return "{}"
+	}
+
+	hash = strings.ToUpper(hash)
+	ret := "{}"
+	err = db.View(func(tx *bolt.Tx) error {
+		hdb := tx.Bucket(dbInfosName)
+		if hdb == nil {
+			return fmt.Errorf("could not find torrent info")
+		}
+		hdb = hdb.Bucket([]byte(hash))
+		if hdb != nil {
+			info := hdb.Get([]byte("Info"))
+			if info == nil {
+				return fmt.Errorf("error get torrent info")
+			}
+			ret = string(info)
+			return nil
+		}
+		return nil
+	})
+	return ret
+}

src/server/settings/Settings.go

@@ -0,0 +1,102 @@
+package settings
+
+import (
+	"encoding/json"
+	"fmt"
+	"time"
+
+	"github.com/boltdb/bolt"
+)
+
+var (
+	sets      *Settings
+	StartTime time.Time
+)
+
+func init() {
+	sets = new(Settings)
+	sets.CacheSize = 200 * 1024 * 1024
+	sets.PreloadBufferSize = 20 * 1024 * 1024
+	sets.ConnectionsLimit = 100
+	sets.RetrackersMode = 1
+	sets.DisableDHT = true
+	StartTime = time.Now()
+}
+
+type Settings struct {
+	CacheSize         int64 // in byte, def 200 mb
+	PreloadBufferSize int64 // in byte, buffer for preload
+
+	RetrackersMode int //0 - don`t add, 1 - add retrackers, 2 - remove retrackers
+
+	//BT Config
+	DisableTCP        bool
+	DisableUTP        bool
+	DisableUPNP       bool
+	DisableDHT        bool
+	DisableUpload     bool
+	Encryption        int // 0 - Enable, 1 - disable, 2 - force
+	DownloadRateLimit int // in kb, 0 - inf
+	UploadRateLimit   int // in kb, 0 - inf
+	ConnectionsLimit  int
+}
+
+func Get() *Settings {
+	return sets
+}
+
+func (s *Settings) String() string {
+	buf, _ := json.MarshalIndent(sets, "", " ")
+	return string(buf)
+}
+
+func ReadSettings() error {
+	err := openDB()
+	if err != nil {
+		return err
+	}
+	buf := make([]byte, 0)
+	err = db.View(func(tx *bolt.Tx) error {
+		sdb := tx.Bucket(dbSettingsName)
+		if sdb == nil {
+			return fmt.Errorf("error load settings")
+		}
+
+		buf = sdb.Get([]byte("json"))
+		if buf == nil {
+			return fmt.Errorf("error load settings")
+		}
+		return nil
+	})
+	err = json.Unmarshal(buf, sets)
+	if err != nil {
+		return err
+	}
+	if sets.ConnectionsLimit <= 0 {
+		sets.ConnectionsLimit = 50
+	}
+	if sets.CacheSize <= 0 {
+		sets.CacheSize = 200 * 1024 * 1024
+	}
+	return nil
+}
+
+func SaveSettings() error {
+	err := openDB()
+	if err != nil {
+		return err
+	}
+
+	buf, err := json.Marshal(sets)
+	if err != nil {
+		return err
+	}
+
+	return db.Update(func(tx *bolt.Tx) error {
+		setsDB, err := tx.CreateBucketIfNotExists(dbSettingsName)
+		if err != nil {
+			return err
+		}
+		return setsDB.Put([]byte("json"), []byte(buf))
+	})
+}

src/server/settings/Torrent.go

@@ -0,0 +1,292 @@
+package settings
+
+import (
+	"encoding/binary"
+	"fmt"
+
+	"github.com/boltdb/bolt"
+)
+
+type Torrent struct {
+	Name      string
+	Magnet    string
+	Hash      string
+	Size      int64
+	Timestamp int64
+
+	Files []File
+}
+
+type File struct {
+	Name   string
+	Size   int64
+	Viewed bool
+}
+
+func SetViewed(hash, filename string) error {
+	err := openDB()
+	if err != nil {
+		return err
+	}
+
+	return db.Update(func(tx *bolt.Tx) error {
+		dbt := tx.Bucket(dbTorrentsName)
+		if dbt == nil {
+			return fmt.Errorf("could not find torrent")
+		}
+		hdb := dbt.Bucket([]byte(hash))
+		if hdb == nil {
+			return fmt.Errorf("could not find torrent")
+		}
+
+		fdb := hdb.Bucket([]byte("Files"))
+		if fdb == nil {
+			return fmt.Errorf("could not find torrent")
+		}
+
+		fdb = fdb.Bucket([]byte(filename))
+		if fdb == nil {
+			return fmt.Errorf("could not find torrent")
+		}
+
+		err = fdb.Put([]byte("Viewed"), []byte{1})
+		if err != nil {
+			return fmt.Errorf("error save torrent %v", err)
+		}
+		return nil
+	})
+}
+
+func SaveTorrentDB(torrent *Torrent) error {
+	err := openDB()
+	if err != nil {
+		return err
+	}
+
+	return db.Update(func(tx *bolt.Tx) error {
+		dbt, err := tx.CreateBucketIfNotExists(dbTorrentsName)
+		if err != nil {
+			return fmt.Errorf("could not create Torrents bucket: %v", err)
+		}
+		fmt.Println("Save torrent:", torrent.Name)
+		hdb, err := dbt.CreateBucketIfNotExists([]byte(torrent.Hash))
+		if err != nil {
+			return fmt.Errorf("could not create Torrent bucket: %v", err)
+		}
+
+		err = hdb.Put([]byte("Name"), []byte(torrent.Name))
+		if err != nil {
+			return fmt.Errorf("error save torrent: %v", err)
+		}
+		err = hdb.Put([]byte("Link"), []byte(torrent.Magnet))
+		if err != nil {
+			return fmt.Errorf("error save torrent: %v", err)
+		}
+		err = hdb.Put([]byte("Size"), i2b(torrent.Size))
+		if err != nil {
+			return fmt.Errorf("error save torrent: %v", err)
+		}
+		err = hdb.Put([]byte("Timestamp"), i2b(torrent.Timestamp))
+		if err != nil {
+			return fmt.Errorf("error save torrent: %v", err)
+		}
+
+		fdb, err := hdb.CreateBucketIfNotExists([]byte("Files"))
+		if err != nil {
+			return fmt.Errorf("error save torrent files: %v", err)
+		}
+
+		for _, f := range torrent.Files {
+			ffdb, err := fdb.CreateBucketIfNotExists([]byte(f.Name))
+			if err != nil {
+				return fmt.Errorf("error save torrent files: %v", err)
+			}
+			err = ffdb.Put([]byte("Size"), i2b(f.Size))
+			if err != nil {
+				return fmt.Errorf("error save torrent files: %v", err)
+			}
+
+			b := 0
+			if f.Viewed {
+				b = 1
+			}
+
+			err = ffdb.Put([]byte("Viewed"), []byte{byte(b)})
+			if err != nil {
+				return fmt.Errorf("error save torrent files: %v", err)
+			}
+		}
+
+		return nil
+	})
+}
+
+func RemoveTorrentDB(hash string) error {
+	err := openDB()
+	if err != nil {
+		return err
+	}
+
+	return db.Update(func(tx *bolt.Tx) error {
+		dbt := tx.Bucket(dbTorrentsName)
+		if dbt == nil {
+			return fmt.Errorf("could not find torrent")
+		}
+
+		return dbt.DeleteBucket([]byte(hash))
+	})
+}
+
+func LoadTorrentDB(hash string) (*Torrent, error) {
+	err := openDB()
+	if err != nil {
+		return nil, err
+	}
+
+	var torr *Torrent
+	err = db.View(func(tx *bolt.Tx) error {
+		hdb := tx.Bucket(dbTorrentsName)
+		if hdb == nil {
+			return fmt.Errorf("could not find torrent")
+		}
+		hdb = hdb.Bucket([]byte(hash))
+		if hdb != nil {
+			torr = new(Torrent)
+			torr.Hash = string(hash)
+			tmp := hdb.Get([]byte("Name"))
+			if tmp == nil {
+				return fmt.Errorf("error load torrent")
+			}
+			torr.Name = string(tmp)
+
+			tmp = hdb.Get([]byte("Link"))
+			if tmp == nil {
+				return fmt.Errorf("error load torrent")
+			}
+			torr.Magnet = string(tmp)
+
+			tmp = hdb.Get([]byte("Size"))
+			if tmp == nil {
+				return fmt.Errorf("error load torrent")
+			}
+			torr.Size = b2i(tmp)
+
+			tmp = hdb.Get([]byte("Timestamp"))
+			if tmp == nil {
+				return fmt.Errorf("error load torrent")
+			}
+			torr.Timestamp = b2i(tmp)
+
+			fdb := hdb.Bucket([]byte("Files"))
+			if fdb == nil {
+				return fmt.Errorf("error load torrent files")
+			}
+			cf := fdb.Cursor()
+			for fn, _ := cf.First(); fn != nil; fn, _ = cf.Next() {
+				file := File{Name: string(fn)}
+				ffdb := fdb.Bucket(fn)
+				if ffdb == nil {
+					return fmt.Errorf("error load torrent files")
+				}
+
+				tmp := ffdb.Get([]byte("Size"))
+				if tmp == nil {
+					return fmt.Errorf("error load torrent file")
+				}
+				file.Size = b2i(tmp)
+
+				tmp = ffdb.Get([]byte("Viewed"))
+				if tmp == nil {
+					return fmt.Errorf("error load torrent file")
+				}
+				file.Viewed = len(tmp) > 0 && tmp[0] == 1
+				torr.Files = append(torr.Files, file)
+			}
+			SortFiles(torr.Files)
+		}
+		return nil
+	})
+	return torr, err
+}
+
+func LoadTorrentsDB() ([]*Torrent, error) {
+	err := openDB()
+	if err != nil {
+		return nil, err
+	}
+
+	torrs := make([]*Torrent, 0)
+	err = db.View(func(tx *bolt.Tx) error {
+		tdb := tx.Bucket(dbTorrentsName)
+		c := tdb.Cursor()
+		for h, _ := c.First(); h != nil; h, _ = c.Next() {
+			hdb := tdb.Bucket(h)
+			if hdb != nil {
+				torr := new(Torrent)
+				torr.Hash = string(h)
+				tmp := hdb.Get([]byte("Name"))
+				if tmp == nil {
+					return fmt.Errorf("error load torrent")
+				}
+				torr.Name = string(tmp)
+
+				tmp = hdb.Get([]byte("Link"))
+				if tmp == nil {
+					return fmt.Errorf("error load torrent")
+				}
+				torr.Magnet = string(tmp)
+
+				tmp = hdb.Get([]byte("Size"))
+				if tmp == nil {
+					return fmt.Errorf("error load torrent")
+				}
+				torr.Size = b2i(tmp)
+
+				tmp = hdb.Get([]byte("Timestamp"))
+				if tmp == nil {
+					return fmt.Errorf("error load torrent")
+				}
+				torr.Timestamp = b2i(tmp)
+
+				fdb := hdb.Bucket([]byte("Files"))
+				if fdb == nil {
+					return fmt.Errorf("error load torrent files")
+				}
+				cf := fdb.Cursor()
+				for fn, _ := cf.First(); fn != nil; fn, _ = cf.Next() {
+					file := File{Name: string(fn)}
+					ffdb := fdb.Bucket(fn)
+					if ffdb == nil {
+						return fmt.Errorf("error load torrent files")
+					}
+					tmp := ffdb.Get([]byte("Size"))
+					if tmp == nil {
+						return fmt.Errorf("error load torrent file")
+					}
+					file.Size = b2i(tmp)
+
+					tmp = ffdb.Get([]byte("Viewed"))
+					if tmp == nil {
+						return fmt.Errorf("error load torrent file")
+					}
+					file.Viewed = len(tmp) > 0 && tmp[0] == 1
+					torr.Files = append(torr.Files, file)
+				}
+				SortFiles(torr.Files)
+				torrs = append(torrs, torr)
+			}
+		}
+		return nil
+	})
+	return torrs, err
+}
+
+func i2b(v int64) []byte {
+	b := make([]byte, 8)
+	binary.BigEndian.PutUint64(b, uint64(v))
+	return b
+}
+
+func b2i(v []byte) int64 {
+	return int64(binary.BigEndian.Uint64(v))
+}

src/server/settings/UsableFiles.go

@@ -0,0 +1,88 @@
+package settings
+
+import (
+	"path/filepath"
+	"sort"
+	"strings"
+)
+
+var (
+	uFiles = map[string]interface{}{
+		".3g2":   nil,
+		".3gp":   nil,
+		".aaf":   nil,
+		".asf":   nil,
+		".avchd": nil,
+		".avi":   nil,
+		".drc":   nil,
+		".flv":   nil,
+		".m2v":   nil,
+		".m4p":   nil,
+		".m4v":   nil,
+		".mkv":   nil,
+		".mng":   nil,
+		".mov":   nil,
+		".mp2":   nil,
+		".mp4":   nil,
+		".mpe":   nil,
+		".mpeg":  nil,
+		".mpg":   nil,
+		".mpv":   nil,
+		".mxf":   nil,
+		".nsv":   nil,
+		".ogg":   nil,
+		".ogv":   nil,
+		".ts":    nil,
+		".m2ts":  nil,
+		".mts":   nil,
+		".qt":    nil,
+		".rm":    nil,
+		".rmvb":  nil,
+		".roq":   nil,
+		".svi":   nil,
+		".vob":   nil,
+		".webm":  nil,
+		".wmv":   nil,
+		".yuv":   nil,
+
+		".aac":  nil,
+		".aiff": nil,
+		".ape":  nil,
+		".au":   nil,
+		".flac": nil,
+		".gsm":  nil,
+		".it":   nil,
+		".m3u":  nil,
+		".m4a":  nil,
+		".mid":  nil,
+		".mod":  nil,
+		".mp3":  nil,
+		".mpa":  nil,
+		".pls":  nil,
+		".ra":   nil,
+		".s3m":  nil,
+		".sid":  nil,
+		".wav":  nil,
+		".wma":  nil,
+		".xm":   nil,
+	}
+)
+
+func SortFiles(files []File) {
+	sort.Slice(files, func(i, j int) bool {
+		if haveUsable(files[i].Name) && !haveUsable(files[j].Name) {
+			return true
+		}
+		if !haveUsable(files[i].Name) && haveUsable(files[j].Name) {
+			return false
+		}
+
+		return files[i].Name < files[j].Name
+	})
+}
+
+func haveUsable(name string) bool {
+	ext := strings.ToLower(filepath.Ext(name))
+	_, ok := uFiles[ext]
+	return ok
+}

src/server/torr/BTServer.go

@@ -0,0 +1,182 @@
+package torr
+
+import (
+	"fmt"
+	"io"
+	"path/filepath"
+	"sync"
+
+	"server/settings"
+	"server/torr/storage"
+	"server/torr/storage/memcache"
+	"server/torr/storage/state"
+	"server/utils"
+
+	"github.com/anacrolix/torrent"
+	"github.com/anacrolix/torrent/iplist"
+	"github.com/anacrolix/torrent/metainfo"
+)
+
+type BTServer struct {
+	config *torrent.ClientConfig
+	client *torrent.Client
+
+	storage storage.Storage
+
+	torrents map[metainfo.Hash]*Torrent
+
+	mu  sync.Mutex
+	wmu sync.Mutex
+
+	watching bool
+}
+
+func NewBTS() *BTServer {
+	bts := new(BTServer)
+	bts.torrents = make(map[metainfo.Hash]*Torrent)
+	return bts
+}
+
+func (bt *BTServer) Connect() error {
+	bt.mu.Lock()
+	defer bt.mu.Unlock()
+	var err error
+	bt.configure()
+	bt.client, err = torrent.NewClient(bt.config)
+	bt.torrents = make(map[metainfo.Hash]*Torrent)
+	return err
+}
+
+func (bt *BTServer) Disconnect() {
+	bt.mu.Lock()
+	defer bt.mu.Unlock()
+	if bt.client != nil {
+		bt.client.Close()
+		bt.client = nil
+		utils.FreeOSMemGC()
+	}
+}
+
+func (bt *BTServer) Reconnect() error {
+	bt.Disconnect()
+	return bt.Connect()
+}
+
+func (bt *BTServer) configure() {
+	bt.storage = memcache.NewStorage(settings.Get().CacheSize)
+
+	blocklist, _ := iplist.MMapPackedFile(filepath.Join(settings.Path, "blocklist"))
+
+	userAgent := "uTorrent/3.4.9"
+	peerID := "-UT3490-"
+
+	bt.config = torrent.NewDefaultClientConfig()
+
+	bt.config.DisableIPv6 = true
+	bt.config.DisableTCP = settings.Get().DisableTCP
+	bt.config.DisableUTP = settings.Get().DisableUTP
+	bt.config.NoDefaultPortForwarding = settings.Get().DisableUPNP
+	bt.config.NoDHT = settings.Get().DisableDHT
+	bt.config.NoUpload = settings.Get().DisableUpload
+	bt.config.EncryptionPolicy = torrent.EncryptionPolicy{
+		DisableEncryption: settings.Get().Encryption == 1,
+		ForceEncryption:   settings.Get().Encryption == 2,
+	}
+	bt.config.IPBlocklist = blocklist
+	bt.config.DefaultStorage = bt.storage
+	bt.config.Bep20 = peerID
+	bt.config.PeerID = utils.PeerIDRandom(peerID)
+	bt.config.HTTPUserAgent = userAgent
+	bt.config.EstablishedConnsPerTorrent = settings.Get().ConnectionsLimit
+
+	bt.config.TorrentPeersHighWater = 3000
+	bt.config.HalfOpenConnsPerTorrent = 50
+
+	if settings.Get().DownloadRateLimit > 0 {
+		bt.config.DownloadRateLimiter = utils.Limit(settings.Get().DownloadRateLimit * 1024)
+	}
+	if settings.Get().UploadRateLimit > 0 {
+		bt.config.UploadRateLimiter = utils.Limit(settings.Get().UploadRateLimit * 1024)
+	}
+
+	//bt.config.Debug = true
+
+	fmt.Println("Configure client:", settings.Get())
+}
+
+func (bt *BTServer) AddTorrent(magnet metainfo.Magnet, onAdd func(*Torrent)) (*Torrent, error) {
+	torr, err := NewTorrent(magnet, bt)
+	if err != nil {
+		return nil, err
+	}
+
+	if onAdd != nil {
+		go func() {
+			if torr.GotInfo() {
+				onAdd(torr)
+			}
+		}()
+	} else {
+		go torr.GotInfo()
+	}
+
+	return torr, nil
+}
+
+func (bt *BTServer) List() []*Torrent {
+	bt.mu.Lock()
+	defer bt.mu.Unlock()
+	list := make([]*Torrent, 0)
+	for _, t := range bt.torrents {
+		list = append(list, t)
+	}
+	return list
+}
+
+func (bt *BTServer) GetTorrent(hash metainfo.Hash) *Torrent {
+	bt.mu.Lock()
+	defer bt.mu.Unlock()
+
+	if t, ok := bt.torrents[hash]; ok {
+		return t
+	}
+
+	return nil
+}
+
+func (bt *BTServer) RemoveTorrent(hash torrent.InfoHash) {
+	if torr, ok := bt.torrents[hash]; ok {
+		torr.Close()
+	}
+}
+
+func (bt *BTServer) BTState() *BTState {
+	bt.mu.Lock()
+	defer bt.mu.Unlock()
+
+	btState := new(BTState)
+	btState.LocalPort = bt.client.LocalPort()
+	btState.PeerID = fmt.Sprintf("%x", bt.client.PeerID())
+	btState.BannedIPs = len(bt.client.BadPeerIPs())
+	for _, dht := range bt.client.DhtServers() {
+		btState.DHTs = append(btState.DHTs, dht)
+	}
+	for _, t := range bt.torrents {
+		btState.Torrents = append(btState.Torrents, t)
+	}
+	return btState
+}
+
+func (bt *BTServer) CacheState(hash metainfo.Hash) *state.CacheState {
+	st := bt.GetTorrent(hash)
+	if st == nil {
+		return nil
+	}
+
+	cacheState := bt.storage.GetStats(hash)
+	return cacheState
+}
+
+func (bt *BTServer) WriteState(w io.Writer) {
+	bt.client.WriteStatus(w)
+}

src/server/torr/Play.go

@@ -0,0 +1,51 @@
+package torr
+
+import (
+	"fmt"
+	"net/http"
+	"time"
+
+	"server/settings"
+	"server/utils"
+
+	"github.com/anacrolix/missinggo/httptoo"
+	"github.com/anacrolix/torrent"
+	"github.com/labstack/echo"
+)
+
+func (bt *BTServer) View(torr *Torrent, file *torrent.File, c echo.Context) error {
+	go settings.SetViewed(torr.Hash().HexString(), file.Path())
+	reader := torr.NewReader(file, 0)
+
+	fmt.Println("Connect reader:", len(torr.readers))
+	c.Response().Header().Set("Connection", "close")
+	c.Response().Header().Set("ETag", httptoo.EncodeQuotedString(fmt.Sprintf("%s/%s", torr.Hash().HexString(), file.Path())))
+
+	http.ServeContent(c.Response(), c.Request(), file.Path(), time.Time{}, reader)
+
+	fmt.Println("Disconnect reader:", len(torr.readers))
+	torr.CloseReader(reader)
+	return c.NoContent(http.StatusOK)
+}
+
+func (bt *BTServer) Play(torr *Torrent, file *torrent.File, preload int64, c echo.Context) error {
+	if torr.status == TorrentAdded {
+		if !torr.GotInfo() {
+			return echo.NewHTTPError(http.StatusBadRequest, "torrent closed befor get info")
+		}
+	}
+	if torr.status == TorrentGettingInfo {
+		if !torr.WaitInfo() {
+			return echo.NewHTTPError(http.StatusBadRequest, "torrent closed befor get info")
+		}
+	}
+
+	if torr.PreloadedBytes == 0 {
+		torr.Preload(file, preload)
+	}
+
+	redirectUrl := c.Scheme() + "://" + c.Request().Host + "/torrent/view/" + torr.Hash().HexString() + "/" + utils.CleanFName(file.Path())
+	return c.Redirect(http.StatusFound, redirectUrl)
+
+	//return bt.View(torr, file, c)
+}

src/server/torr/State.go

@@ -0,0 +1,57 @@
+package torr
+
+import (
+	"github.com/anacrolix/dht"
+)
+
+type BTState struct {
+	LocalPort int
+	PeerID    string
+	BannedIPs int
+	DHTs      []*dht.Server
+
+	Torrents []*Torrent
+}
+
+type TorrentStats struct {
+	Name string
+	Hash string
+
+	TorrentStatus       TorrentStatus
+	TorrentStatusString string
+
+	LoadedSize  int64
+	TorrentSize int64
+
+	PreloadedBytes int64
+	PreloadSize    int64
+
+	DownloadSpeed float64
+	UploadSpeed   float64
+
+	TotalPeers       int
+	PendingPeers     int
+	ActivePeers      int
+	ConnectedSeeders int
+	HalfOpenPeers    int
+
+	BytesWritten        int64
+	BytesWrittenData    int64
+	BytesRead           int64
+	BytesReadData       int64
+	BytesReadUsefulData int64
+	ChunksWritten       int64
+	ChunksRead          int64
+	ChunksReadUseful    int64
+	ChunksReadWasted    int64
+	PiecesDirtiedGood   int64
+	PiecesDirtiedBad    int64
+
+	FileStats []TorrentFileStat
+}
+
+type TorrentFileStat struct {
+	Id     int
+	Path   string
+	Length int64
+}

src/server/torr/Torrent.go

@@ -0,0 +1,400 @@
+package torr
+
+import (
+	"fmt"
+	"io"
+	"sort"
+	"sync"
+	"time"
+
+	"server/settings"
+	"server/utils"
+
+	"github.com/anacrolix/torrent"
+	"github.com/anacrolix/torrent/metainfo"
+	"github.com/labstack/gommon/bytes"
+)
+
+type TorrentStatus int
+
+func (t TorrentStatus) String() string {
+	switch t {
+	case TorrentAdded:
+		return "Torrent added"
+	case TorrentGettingInfo:
+		return "Torrent getting info"
+	case TorrentPreload:
+		return "Torrent preload"
+	case TorrentWorking:
+		return "Torrent working"
+	case TorrentClosed:
+		return "Torrent closed"
+	default:
+		return "Torrent unknown status"
+	}
+}
+
+const (
+	TorrentAdded = TorrentStatus(iota)
+	TorrentGettingInfo
+	TorrentPreload
+	TorrentWorking
+	TorrentClosed
+)
+
+type Torrent struct {
+	*torrent.Torrent
+
+	status TorrentStatus
+
+	readers map[torrent.Reader]struct{}
+
+	muTorrent sync.Mutex
+	muReader  sync.Mutex
+
+	bt *BTServer
+
+	lastTimeSpeed       time.Time
+	DownloadSpeed       float64
+	UploadSpeed         float64
+	BytesReadUsefulData int64
+	BytesWrittenData    int64
+
+	PreloadSize    int64
+	PreloadedBytes int64
+
+	hash metainfo.Hash
+
+	expiredTime time.Time
+
+	closed <-chan struct{}
+
+	progressTicker *time.Ticker
+}
+
+func NewTorrent(magnet metainfo.Magnet, bt *BTServer) (*Torrent, error) {
+	switch settings.Get().RetrackersMode {
+	case 1:
+		magnet.Trackers = append(magnet.Trackers, utils.GetDefTrackers()...)
+	case 2:
+		magnet.Trackers = nil
+	case 3:
+		magnet.Trackers = utils.GetDefTrackers()
+	}
+	goTorrent, _, err := bt.client.AddTorrentSpec(&torrent.TorrentSpec{
+		Trackers:    [][]string{magnet.Trackers},
+		DisplayName: magnet.DisplayName,
+		InfoHash:    magnet.InfoHash,
+	})
+
+	if err != nil {
+		return nil, err
+	}
+
+	bt.mu.Lock()
+	defer bt.mu.Unlock()
+	if tor, ok := bt.torrents[magnet.InfoHash]; ok {
+		return tor, nil
+	}
+
+	torr := new(Torrent)
+	torr.Torrent = goTorrent
+	torr.status = TorrentAdded
+	torr.lastTimeSpeed = time.Now()
+	torr.bt = bt
+	torr.readers = make(map[torrent.Reader]struct{})
+	torr.hash = magnet.InfoHash
+	torr.closed = goTorrent.Closed()
+
+	go torr.watch()
+
+	bt.torrents[magnet.InfoHash] = torr
+	return torr, nil
+}
+
+func (t *Torrent) WaitInfo() bool {
+	if t.Torrent == nil {
+		return false
+	}
+	select {
+	case <-t.Torrent.GotInfo():
+		return true
+	case <-t.closed:
+		return false
+	}
+}
+
+func (t *Torrent) GotInfo() bool {
+	if t.status == TorrentClosed {
+		return false
+	}
+	t.status = TorrentGettingInfo
+	if t.WaitInfo() {
+		t.status = TorrentWorking
+		t.expiredTime = time.Now().Add(time.Minute * 5)
+		return true
+	} else {
+		t.Close()
+		return false
+	}
+}
+
+func (t *Torrent) watch() {
+	t.progressTicker = time.NewTicker(time.Second)
+	defer t.progressTicker.Stop()
+
+	for {
+		select {
+		case <-t.progressTicker.C:
+			go t.progressEvent()
+		case <-t.closed:
+			t.Close()
+			return
+		}
+	}
+}
+
+func (t *Torrent) progressEvent() {
+	if t.expired() {
+		t.drop()
+		return
+	}
+
+	t.muTorrent.Lock()
+	if t.Torrent != nil && t.Torrent.Info() != nil {
+		st := t.Torrent.Stats()
+		deltaDlBytes := st.BytesReadUsefulData.Int64() - t.BytesReadUsefulData
+		deltaUpBytes := st.BytesWrittenData.Int64() - t.BytesWrittenData
+		deltaTime := time.Since(t.lastTimeSpeed).Seconds()
+
+		t.DownloadSpeed = float64(deltaDlBytes) / deltaTime
+		t.UploadSpeed = float64(deltaUpBytes) / deltaTime
+
+		t.BytesWrittenData = st.BytesWrittenData.Int64()
+		t.BytesReadUsefulData = st.BytesReadUsefulData.Int64()
+	} else {
+		t.DownloadSpeed = 0
+		t.UploadSpeed = 0
+	}
+	t.muTorrent.Unlock()
+	t.lastTimeSpeed = time.Now()
+}
+
+func (t *Torrent) expired() bool {
+	return len(t.readers) == 0 && t.expiredTime.Before(time.Now()) && (t.status == TorrentWorking || t.status == TorrentClosed)
+}
+
+func (t *Torrent) Files() []*torrent.File {
+	if t.Torrent != nil && t.Torrent.Info() != nil {
+		files := t.Torrent.Files()
+		return files
+	}
+	return nil
+}
+
+func (t *Torrent) Hash() metainfo.Hash {
+	return t.hash
+}
+
+func (t *Torrent) Status() TorrentStatus {
+	return t.status
+}
+
+func (t *Torrent) Length() int64 {
+	if t.Info() == nil {
+		return 0
+	}
+	return t.Torrent.Length()
+}
+
+func (t *Torrent) NewReader(file *torrent.File, readahead int64) torrent.Reader {
+	t.muReader.Lock()
+
+	if t.status == TorrentClosed {
+		return nil
+	}
+
+	defer t.muReader.Unlock()
+	reader := file.NewReader()
+	if readahead <= 0 {
+		readahead = utils.GetReadahead()
+	}
+	reader.SetReadahead(readahead)
+	t.readers[reader] = struct{}{}
+	return reader
+}
+
+func (t *Torrent) CloseReader(reader torrent.Reader) {
+	t.muReader.Lock()
+	reader.Close()
+	delete(t.readers, reader)
+	t.expiredTime = time.Now().Add(time.Second * 5)
+	t.muReader.Unlock()
+}
+
+func (t *Torrent) Preload(file *torrent.File, size int64) {
+	if size < 0 {
+		return
+	}
+
+	if t.status == TorrentGettingInfo {
+		t.WaitInfo()
+	}
+
+	t.muTorrent.Lock()
+	if t.status != TorrentWorking {
+		t.muTorrent.Unlock()
+		return
+	}
+
+	if size == 0 {
+		size = settings.Get().PreloadBufferSize
+	}
+	if size == 0 {
+		t.muTorrent.Unlock()
+		return
+	}
+	t.status = TorrentPreload
+	t.muTorrent.Unlock()
+
+	defer func() {
+		if t.status == TorrentPreload {
+			t.status = TorrentWorking
+		}
+	}()
+
+	buff5mb := int64(5 * 1024 * 1024)
+	startPreloadLength := size
+	endPreloadOffset := int64(0)
+	if startPreloadLength > buff5mb {
+		endPreloadOffset = file.Offset() + file.Length() - buff5mb
+	}
+
+	readerPre := t.NewReader(file, startPreloadLength)
+	if readerPre == nil {
+		return
+	}
+	defer func() {
+		t.CloseReader(readerPre)
+		t.expiredTime = time.Now().Add(time.Minute * 1)
+	}()
+
+	if endPreloadOffset > 0 {
+		readerPost := t.NewReader(file, 1)
+		if readerPre == nil {
+			return
+		}
+		readerPost.Seek(endPreloadOffset, io.SeekStart)
+		readerPost.SetReadahead(buff5mb)
+		defer func() {
+			t.CloseReader(readerPost)
+			t.expiredTime = time.Now().Add(time.Minute * 1)
+		}()
+	}
+
+	if size > file.Length() {
+		size = file.Length()
+	}
+
+	t.PreloadSize = size
+	var lastSize int64 = 0
+	errCount := 0
+	for t.status == TorrentPreload {
+		t.expiredTime = time.Now().Add(time.Minute * 1)
+		t.PreloadedBytes = t.Torrent.BytesCompleted()
+		fmt.Println("Preload:", file.Torrent().InfoHash().HexString(), bytes.Format(t.PreloadedBytes), "/", bytes.Format(t.PreloadSize), "Speed:", utils.Format(t.DownloadSpeed), "Peers:[", t.Torrent.Stats().ConnectedSeeders, "]", t.Torrent.Stats().ActivePeers, "/", t.Torrent.Stats().TotalPeers)
+		if t.PreloadedBytes >= t.PreloadSize {
+			return
+		}
+
+		if lastSize == t.PreloadedBytes {
+			errCount++
+		} else {
+			lastSize = t.PreloadedBytes
+			errCount = 0
+		}
+		if errCount > 120 {
+			return
+		}
+		time.Sleep(time.Second)
+	}
+}
+
+func (t *Torrent) drop() {
+	t.muTorrent.Lock()
+	if t.Torrent != nil {
+		t.Torrent.Drop()
+		t.Torrent = nil
+	}
+	t.muTorrent.Unlock()
+}
+
+func (t *Torrent) Close() {
+	t.status = TorrentClosed
+	t.bt.mu.Lock()
+	defer t.bt.mu.Unlock()
+
+	t.muReader.Lock()
+	defer t.muReader.Unlock()
+
+	for r := range t.readers {
+		r.Close()
+	}
+
+	if _, ok := t.bt.torrents[t.hash]; ok {
+		delete(t.bt.torrents, t.hash)
+	}
+
+	t.drop()
+}
+
+func (t *Torrent) Stats() TorrentStats {
+	t.muTorrent.Lock()
+	defer t.muTorrent.Unlock()
+
+	st := TorrentStats{}
+
+	st.Name = t.Name()
+	st.Hash = t.hash.HexString()
+	st.TorrentStatus = t.status
+	st.TorrentStatusString = t.status.String()
+
+	if t.Torrent != nil {
+		st.LoadedSize = t.Torrent.BytesCompleted()
+		st.TorrentSize = t.Length()
+		st.PreloadedBytes = t.PreloadedBytes
+		st.PreloadSize = t.PreloadSize
+		st.DownloadSpeed = t.DownloadSpeed
+		st.UploadSpeed = t.UploadSpeed
+
+		tst := t.Torrent.Stats()
+		st.BytesWritten = tst.BytesWritten.Int64()
+		st.BytesWrittenData = tst.BytesWrittenData.Int64()
+		st.BytesRead = tst.BytesRead.Int64()
+		st.BytesReadData = tst.BytesReadData.Int64()
+		st.BytesReadUsefulData = tst.BytesReadUsefulData.Int64()
+		st.ChunksWritten = tst.ChunksWritten.Int64()
+		st.ChunksRead = tst.ChunksRead.Int64()
+		st.ChunksReadUseful = tst.ChunksReadUseful.Int64()
+		st.ChunksReadWasted = tst.ChunksReadWasted.Int64()
+		st.PiecesDirtiedGood = tst.PiecesDirtiedGood.Int64()
+		st.PiecesDirtiedBad = tst.PiecesDirtiedBad.Int64()
+		st.TotalPeers = tst.TotalPeers
+		st.PendingPeers = tst.PendingPeers
+		st.ActivePeers = tst.ActivePeers
+		st.ConnectedSeeders = tst.ConnectedSeeders
+		st.HalfOpenPeers = tst.HalfOpenPeers
+
+		for i, f := range t.Files() {
+			st.FileStats = append(st.FileStats, TorrentFileStat{
+				Id:     i,
+				Path:   f.Path(),
+				Length: f.Length(),
+			})
+		}
+		sort.Slice(st.FileStats, func(i, j int) bool {
+			return st.FileStats[i].Path < st.FileStats[j].Path
+		})
+	}
+	return st
+}

src/server/torr/storage/Storage.go

@@ -0,0 +1,15 @@
+package storage
+
+import (
+	"server/torr/storage/state"
+
+	"github.com/anacrolix/torrent/metainfo"
+	"github.com/anacrolix/torrent/storage"
+)
+
+type Storage interface {
+	storage.ClientImpl
+
+	GetStats(hash metainfo.Hash) *state.CacheState
+	CloseHash(hash metainfo.Hash)
+}

src/server/torr/storage/filecache/Cache.go

@@ -0,0 +1 @@
+package filecache

src/server/torr/storage/filecache/Storage.go

@@ -0,0 +1,69 @@
+package filecache
+
+import (
+	"path/filepath"
+	"sync"
+
+	"server/settings"
+	"server/torr/storage"
+	"server/torr/storage/state"
+
+	"github.com/anacrolix/missinggo/filecache"
+	"github.com/anacrolix/torrent/metainfo"
+	storage2 "github.com/anacrolix/torrent/storage"
+)
+
+type Storage struct {
+	storage.Storage
+
+	caches   map[metainfo.Hash]*filecache.Cache
+	capacity int64
+	mu       sync.Mutex
+}
+
+func NewStorage(capacity int64) storage.Storage {
+	stor := new(Storage)
+	stor.capacity = capacity
+	stor.caches = make(map[metainfo.Hash]*filecache.Cache)
+	return stor
+}
+
+func (s *Storage) OpenTorrent(info *metainfo.Info, infoHash metainfo.Hash) (storage2.TorrentImpl, error) {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	path := filepath.Join(settings.Path, "cache", infoHash.String())
+	cache, err := filecache.NewCache(path)
+	if err != nil {
+		return nil, err
+	}
+	cache.SetCapacity(s.capacity)
+	s.caches[infoHash] = cache
+	return storage2.NewResourcePieces(cache.AsResourceProvider()).OpenTorrent(info, infoHash)
+}
+
+func (s *Storage) GetStats(hash metainfo.Hash) *state.CacheState {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	return nil
+}
+
+func (s *Storage) Clean() {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+}
+
+func (s *Storage) CloseHash(hash metainfo.Hash) {
+	if s.caches == nil {
+		return
+	}
+	s.mu.Lock()
+	defer s.mu.Unlock()
+
+}
+
+func (s *Storage) Close() error {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+
+	return nil
+}

src/server/torr/storage/memcache/Buffer.go

@@ -0,0 +1,86 @@
+package memcache
+
+import (
+	"fmt"
+	"sync"
+
+	"server/utils"
+)
+
+type buffer struct {
+	pieceId int
+	buf     []byte
+	used    bool
+}
+
+type BufferPool struct {
+	buffs map[int]*buffer
+	frees int
+	size  int64
+	mu    sync.Mutex
+}
+
+func NewBufferPool(bufferLength int64, capacity int64) *BufferPool {
+	bp := new(BufferPool)
+	buffsSize := int(capacity/bufferLength) + 3
+	bp.frees = buffsSize
+	bp.size = bufferLength
+	return bp
+}
+
+func (b *BufferPool) mkBuffs() {
+	if b.buffs != nil {
+		return
+	}
+	b.buffs = make(map[int]*buffer, b.frees)
+	fmt.Println("Create", b.frees, "buffers")
+	for i := 0; i < b.frees; i++ {
+		buf := buffer{
+			-1,
+			make([]byte, b.size),
+			false,
+		}
+		b.buffs[i] = &buf
+	}
+}
+
+func (b *BufferPool) GetBuffer(p *Piece) (buff []byte, index int) {
+	b.mu.Lock()
+	defer b.mu.Unlock()
+	b.mkBuffs()
+	for id, buf := range b.buffs {
+		if !buf.used {
+			buf.used = true
+			buf.pieceId = p.Id
+			buff = buf.buf
+			index = id
+			b.frees--
+			//fmt.Printf("Get buffer: %v %v %v %p\n", id, p.Id, b.frees, buff)
+			return
+		}
+	}
+	fmt.Println("Create slow buffer")
+	return make([]byte, b.size), -1
+}
+
+func (b *BufferPool) ReleaseBuffer(index int) {
+	if index == -1 {
+		utils.FreeOSMem()
+		return
+	}
+	b.mu.Lock()
+	defer b.mu.Unlock()
+	b.mkBuffs()
+	if buff, ok := b.buffs[index]; ok {
+		buff.used = false
+		buff.pieceId = -1
+		b.frees++
+		//fmt.Println("Release buffer:", index, b.frees)
+	} else {
+		utils.FreeOSMem()
+	}
+}
+
+func (b *BufferPool) Len() int {
+	return b.frees
+}

src/server/torr/storage/memcache/Cache.go

@@ -0,0 +1,196 @@
+package memcache
+
+import (
+	"fmt"
+	"sort"
+	"sync"
+
+	"server/torr/storage/state"
+	"server/utils"
+
+	"github.com/anacrolix/torrent/metainfo"
+	"github.com/anacrolix/torrent/storage"
+)
+
+type Cache struct {
+	storage.TorrentImpl
+
+	s *Storage
+
+	capacity int64
+	filled   int64
+	hash     metainfo.Hash
+
+	pieceLength int64
+	pieceCount  int
+	piecesBuff  int
+
+	muPiece  sync.Mutex
+	muRemove sync.Mutex
+	isRemove bool
+
+	pieces     map[int]*Piece
+	bufferPull *BufferPool
+
+	prcLoaded int
+}
+
+func NewCache(capacity int64, storage *Storage) *Cache {
+	ret := &Cache{
+		capacity: capacity,
+		filled:   0,
+		pieces:   make(map[int]*Piece),
+		s:        storage,
+	}
+
+	return ret
+}
+
+func (c *Cache) Init(info *metainfo.Info, hash metainfo.Hash) {
+	fmt.Println("Create cache for:", info.Name)
+	//Min capacity of 2 pieces length
+	cap := info.PieceLength * 2
+	if c.capacity < cap {
+		c.capacity = cap
+	}
+	c.pieceLength = info.PieceLength
+	c.pieceCount = info.NumPieces()
+	c.piecesBuff = int(c.capacity / c.pieceLength)
+	c.hash = hash
+	c.bufferPull = NewBufferPool(c.pieceLength, c.capacity)
+
+	for i := 0; i < c.pieceCount; i++ {
+		c.pieces[i] = &Piece{
+			Id:     i,
+			Length: info.Piece(i).Length(),
+			Hash:   info.Piece(i).Hash().HexString(),
+			cache:  c,
+		}
+	}
+}
+
+func (c *Cache) Piece(m metainfo.Piece) storage.PieceImpl {
+	c.muPiece.Lock()
+	defer c.muPiece.Unlock()
+	if val, ok := c.pieces[m.Index()]; ok {
+		return val
+	}
+	return nil
+}
+
+func (c *Cache) Close() error {
+	c.isRemove = false
+	fmt.Println("Close cache for:", c.hash)
+	if _, ok := c.s.caches[c.hash]; ok {
+		delete(c.s.caches, c.hash)
+	}
+	c.pieces = nil
+	c.bufferPull = nil
+	utils.FreeOSMemGC()
+	return nil
+}
+
+func (c *Cache) GetState() state.CacheState {
+	cState := state.CacheState{}
+	cState.Capacity = c.capacity
+	cState.PiecesLength = c.pieceLength
+	cState.PiecesCount = c.pieceCount
+	cState.Hash = c.hash.HexString()
+
+	stats := make(map[int]state.ItemState, 0)
+	c.muPiece.Lock()
+	var fill int64 = 0
+	for _, value := range c.pieces {
+		stat := value.Stat()
+		if stat.BufferSize > 0 {
+			fill += stat.BufferSize
+			stats[stat.Id] = stat
+		}
+	}
+	c.filled = fill
+	c.muPiece.Unlock()
+	cState.Filled = c.filled
+	cState.Pieces = stats
+	return cState
+}
+
+func (c *Cache) cleanPieces() {
+	if c.isRemove {
+		return
+	}
+	c.muRemove.Lock()
+	if c.isRemove {
+		c.muRemove.Unlock()
+		return
+	}
+	c.isRemove = true
+	defer func() { c.isRemove = false }()
+	c.muRemove.Unlock()
+
+	remPieces := c.getRemPieces()
+	if len(remPieces) > 0 && (c.capacity < c.filled || c.bufferPull.Len() <= 1) {
+		remCount := int((c.filled - c.capacity) / c.pieceLength)
+		if remCount < 1 {
+			remCount = 1
+		}
+		if remCount > len(remPieces) {
+			remCount = len(remPieces)
+		}
+
+		remPieces = remPieces[:remCount]
+
+		for _, p := range remPieces {
+			c.removePiece(p)
+		}
+	}
+}
+
+func (c *Cache) getRemPieces() []*Piece {
+	pieces := make([]*Piece, 0)
+	fill := int64(0)
+	loading := 0
+	used := make(map[int]struct{})
+	for _, b := range c.bufferPull.buffs {
+		if b.used {
+			used[b.pieceId] = struct{}{}
+		}
+	}
+	for u := range used {
+		v := c.pieces[u]
+		if v.Size > 0 {
+			if v.Id > 0 {
+				pieces = append(pieces, v)
+			}
+			fill += v.Size
+			if !v.complete {
+				loading++
+			}
+		}
+	}
+	c.filled = fill
+	sort.Slice(pieces, func(i, j int) bool {
+		return pieces[i].accessed.Before(pieces[j].accessed)
+	})
+
+	c.prcLoaded = prc(c.piecesBuff-loading, c.piecesBuff)
+	return pieces
+}
+
+func (c *Cache) removePiece(piece *Piece) {
+	c.muPiece.Lock()
+	defer c.muPiece.Unlock()
+	piece.Release()
+
+	st := fmt.Sprintf("%v%% %v\t%s\t%s", c.prcLoaded, piece.Id, piece.accessed.Format("15:04:05.000"), piece.Hash)
+	if c.prcLoaded >= 95 {
+		fmt.Println("Clean memory GC:", st)
+		utils.FreeOSMemGC()
+	} else {
+		fmt.Println("Clean memory:", st)
+		utils.FreeOSMem()
+	}
+}
+
+func prc(val, of int) int {
+	return int(float64(val) * 100.0 / float64(of))
+}

src/server/torr/storage/memcache/Piece.go

@@ -0,0 +1,115 @@
+package memcache
+
+import (
+	"errors"
+	"io"
+	"sync"
+	"time"
+
+	"server/torr/storage/state"
+
+	"github.com/anacrolix/torrent/storage"
+)
+
+type Piece struct {
+	storage.PieceImpl
+
+	Id     int
+	Hash   string
+	Length int64
+	Size   int64
+
+	complete bool
+	readed   bool
+	accessed time.Time
+	buffer   []byte
+	bufIndex int
+
+	mu    sync.RWMutex
+	cache *Cache
+}
+
+func (p *Piece) WriteAt(b []byte, off int64) (n int, err error) {
+	p.mu.Lock()
+	defer p.mu.Unlock()
+
+	if p.buffer == nil {
+		go p.cache.cleanPieces()
+		p.buffer, p.bufIndex = p.cache.bufferPull.GetBuffer(p)
+		if p.buffer == nil {
+			return 0, errors.New("Can't get buffer write")
+		}
+	}
+	n = copy(p.buffer[off:], b[:])
+	p.Size += int64(n)
+	p.accessed = time.Now()
+	return
+}
+
+func (p *Piece) ReadAt(b []byte, off int64) (n int, err error) {
+	p.mu.RLock()
+	defer p.mu.RUnlock()
+
+	size := len(b)
+	if size+int(off) > len(p.buffer) {
+		size = len(p.buffer) - int(off)
+		if size < 0 {
+			size = 0
+		}
+	}
+	if len(p.buffer) < int(off) || len(p.buffer) < int(off)+size {
+		return 0, io.ErrUnexpectedEOF
+	}
+	n = copy(b, p.buffer[int(off) : int(off)+size][:])
+	p.accessed = time.Now()
+	if int(off)+size >= len(p.buffer) {
+		p.readed = true
+	}
+	if int64(len(b))+off >= p.Size {
+		go p.cache.cleanPieces()
+	}
+	return n, nil
+}
+
+func (p *Piece) MarkComplete() error {
+	if len(p.buffer) == 0 {
+		return errors.New("piece is not complete")
+	}
+	p.complete = true
+	return nil
+}
+
+func (p *Piece) MarkNotComplete() error {
+	p.complete = false
+	return nil
+}
+
+func (p *Piece) Completion() storage.Completion {
+	return storage.Completion{
+		Complete: p.complete && len(p.buffer) > 0,
+		Ok:       true,
+	}
+}
+
+func (p *Piece) Release() {
+	p.mu.Lock()
+	defer p.mu.Unlock()
+	if p.buffer != nil {
+		p.buffer = nil
+		p.cache.bufferPull.ReleaseBuffer(p.bufIndex)
+		p.bufIndex = -1
+	}
+	p.Size = 0
+	p.complete = false
+}
+
+func (p *Piece) Stat() state.ItemState {
+	itm := state.ItemState{
+		Id:         p.Id,
+		Hash:       p.Hash,
+		Accessed:   p.accessed,
+		Completed:  p.complete,
+		BufferSize: p.Size,
+	}
+	return itm
+}

src/server/torr/storage/memcache/Storage.go

@@ -0,0 +1,66 @@
+package memcache
+
+import (
+	"sync"
+
+	"server/torr/storage"
+	"server/torr/storage/state"
+
+	"github.com/anacrolix/torrent/metainfo"
+	storage2 "github.com/anacrolix/torrent/storage"
+)
+
+type Storage struct {
+	storage.Storage
+
+	caches   map[metainfo.Hash]*Cache
+	capacity int64
+	mu       sync.Mutex
+}
+
+func NewStorage(capacity int64) storage.Storage {
+	stor := new(Storage)
+	stor.capacity = capacity
+	stor.caches = make(map[metainfo.Hash]*Cache)
+	return stor
+}
+
+func (s *Storage) OpenTorrent(info *metainfo.Info, infoHash metainfo.Hash) (storage2.TorrentImpl, error) {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	ch := NewCache(s.capacity, s)
+	ch.Init(info, infoHash)
+	s.caches[infoHash] = ch
+	return ch, nil
+}
+
+func (s *Storage) GetStats(hash metainfo.Hash) *state.CacheState {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	if c, ok := s.caches[hash]; ok {
+		st := c.GetState()
+		return &st
+	}
+	return nil
+}
+
+func (s *Storage) CloseHash(hash metainfo.Hash) {
+	if s.caches == nil {
+		return
+	}
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	if ch, ok := s.caches[hash]; ok {
+		ch.Close()
+		delete(s.caches, hash)
+	}
+}
+
+func (s *Storage) Close() error {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	for _, ch := range s.caches {
+		ch.Close()
+	}
+	return nil
+}

src/server/torr/storage/state/state.go

@@ -0,0 +1,22 @@
+package state
+
+import (
+	"time"
+)
+
+type CacheState struct {
+	Hash         string
+	Capacity     int64
+	Filled       int64
+	PiecesLength int64
+	PiecesCount  int
+	Pieces       map[int]ItemState
+}
+
+type ItemState struct {
+	Id         int
+	Accessed   time.Time
+	BufferSize int64
+	Completed  bool
+	Hash       string
+}

src/server/utils/Prallel.go

@@ -0,0 +1,17 @@
+package utils
+
+import (
+	"sync"
+)
+
+func ParallelFor(begin, end int, fn func(i int)) {
+	var wg sync.WaitGroup
+	wg.Add(end - begin)
+	for i := begin; i < end; i++ {
+		go func(i int) {
+			fn(i)
+			wg.Done()
+		}(i)
+	}
+	wg.Wait()
+}

src/server/utils/Torrent.go

@@ -0,0 +1,74 @@
+package utils
+
+import (
+	"encoding/base32"
+	"errors"
+	"math/rand"
+	"time"
+
+	"server/settings"
+
+	"github.com/anacrolix/torrent"
+	"golang.org/x/time/rate"
+)
+
+var trackers = []string{
+	"http://bt4.t-ru.org/ann?magnet",
+	"http://retracker.mgts.by:80/announce",
+	"http://tracker.city9x.com:2710/announce",
+	"http://tracker.electro-torrent.pl:80/announce",
+	"http://tracker.internetwarriors.net:1337/announce",
+	"http://tracker2.itzmx.com:6961/announce",
+	"udp://46.148.18.250:2710",
+	"udp://opentor.org:2710",
+	"udp://public.popcorn-tracker.org:6969/announce",
+	"udp://tracker.opentrackr.org:1337/announce",
+
+	"http://bt.svao-ix.ru/announce",
+}
+
+func GetDefTrackers() []string {
+	return trackers
+}
+
+func PeerIDRandom(peer string) string {
+	randomBytes := make([]byte, 32)
+	_, err := rand.Read(randomBytes)
+	if err != nil {
+		panic(err)
+	}
+	return peer + base32.StdEncoding.EncodeToString(randomBytes)[:20-len(peer)]
+}
+
+func GotInfo(t *torrent.Torrent, timeout int) error {
+	gi := t.GotInfo()
+	select {
+	case <-gi:
+		return nil
+	case <-time.Tick(time.Second * time.Duration(timeout)):
+		return errors.New("timeout load torrent info")
+	}
+}
+
+func GetReadahead() int64 {
+	readahead := int64(float64(settings.Get().CacheSize) * 0.33)
+	if readahead < 66*1024*1024 {
+		readahead = int64(settings.Get().CacheSize)
+		if readahead > 66*1024*1024 {
+			readahead = 66 * 1024 * 1024
+		}
+	}
+	return readahead
+}
+
+func Limit(i int) *rate.Limiter {
+	l := rate.NewLimiter(rate.Inf, 0)
+	if i > 0 {
+		b := i
+		if b < 16*1024 {
+			b = 16 * 1024
+		}
+		l = rate.NewLimiter(rate.Limit(i), b)
+	}
+	return l
+}

src/server/utils/TorrentInfo.go

@@ -0,0 +1,33 @@
+package utils
+
+import (
+	"encoding/json"
+	"fmt"
+
+	"server/settings"
+)
+
+func AddInfo(hash, js string) {
+	info := settings.GetInfo(hash)
+	if info != "{}" {
+		var jsset map[string]interface{}
+		var err error
+		if err = json.Unmarshal([]byte(js), &jsset); err == nil {
+			var jsdb map[string]interface{}
+			if err = json.Unmarshal([]byte(info), &jsdb); err == nil {
+				for k, v := range jsset {
+					jsdb[k] = v
+				}
+				jsstr, err := json.Marshal(jsdb)
+				if err == nil {
+					settings.AddInfo(hash, string(jsstr))
+					return
+				}
+			}
+		}
+		if err != nil {
+			fmt.Println(err)
+		}
+	}
+	settings.AddInfo(hash, js)
+}

src/server/utils/Utils.go

@@ -0,0 +1,78 @@
+package utils
+
+import (
+	"fmt"
+	"regexp"
+	"runtime"
+	"runtime/debug"
+	"strconv"
+	"strings"
+)
+
+func CleanFName(file string) string {
+	re := regexp.MustCompile(`[ !*'();:@&=+$,/?#\[\]~"]`)
+	ret := re.ReplaceAllString(file, `_`)
+	ret = strings.Replace(ret, "__", "_", -1)
+	return ret
+}
+
+func FreeOSMem() {
+	debug.FreeOSMemory()
+}
+
+func FreeOSMemGC() {
+	runtime.GC()
+	debug.FreeOSMemory()
+}
+
+const (
+	_ = 1.0 << (10 * iota) // ignore first value by assigning to blank identifier
+	KB
+	MB
+	GB
+	TB
+	PB
+	EB
+)
+
+func Format(b float64) string {
+	multiple := ""
+	value := b
+
+	switch {
+	case b >= EB:
+		value /= EB
+		multiple = "EB"
+	case b >= PB:
+		value /= PB
+		multiple = "PB"
+	case b >= TB:
+		value /= TB
+		multiple = "TB"
+	case b >= GB:
+		value /= GB
+		multiple = "GB"
+	case b >= MB:
+		value /= MB
+		multiple = "MB"
+	case b >= KB:
+		value /= KB
+		multiple = "KB"
+	case b == 0:
+		return "0"
+	default:
+		return strconv.FormatInt(int64(b), 10) + "B"
+	}
+
+	return fmt.Sprintf("%.2f%s", value, multiple)
+}
+
+//
+//func IsCyrillic(str string) bool {
+//	for _, r := range str {
+//		if unicode.Is(unicode.Cyrillic, r) {
+//			return true
+//		}
+//	}
+//	return false
+//}

src/server/version/Version.go

@@ -0,0 +1,3 @@
+package version
+
+const Version = "1.1.65"

src/server/web/About.go

@@ -0,0 +1,15 @@
+package server
+
+import (
+	"net/http"
+
+	"github.com/labstack/echo"
+)
+
+func initAbout(e *echo.Echo) {
+	e.GET("/about", aboutPage)
+}
+
+func aboutPage(c echo.Context) error {
+	return c.Render(http.StatusOK, "aboutPage", nil)
+}

src/server/web/Info.go

@@ -0,0 +1,115 @@
+package server
+
+import (
+	"fmt"
+	"net/http"
+	"sort"
+
+	"server/utils"
+
+	"github.com/anacrolix/torrent/metainfo"
+	"github.com/labstack/echo"
+	"github.com/labstack/gommon/bytes"
+)
+
+func initInfo(e *echo.Echo) {
+	server.GET("/cache", cachePage)
+	server.GET("/stat", statePage)
+	server.GET("/btstat", btStatePage)
+}
+
+func btStatePage(c echo.Context) error {
+	bts.WriteState(c.Response())
+	return c.NoContent(http.StatusOK)
+}
+
+func cachePage(c echo.Context) error {
+	return c.Render(http.StatusOK, "cachePage", nil)
+}
+
+func statePage(c echo.Context) error {
+	state := bts.BTState()
+
+	msg := ""
+
+	msg += fmt.Sprintf("Listen port: %d<br>\n", state.LocalPort)
+	msg += fmt.Sprintf("Peer ID: %+q<br>\n", state.PeerID)
+	msg += fmt.Sprintf("Banned IPs: %d<br>\n", state.BannedIPs)
+
+	for _, dht := range state.DHTs {
+		msg += fmt.Sprintf("%s DHT server at %s:<br>\n", dht.Addr().Network(), dht.Addr().String())
+		dhtStats := dht.Stats()
+		msg += fmt.Sprintf("\t&emsp;# Nodes: %d (%d good, %d banned)<br>\n", dhtStats.Nodes, dhtStats.GoodNodes, dhtStats.BadNodes)
+		msg += fmt.Sprintf("\t&emsp;Server ID: %x<br>\n", dht.ID())
+		msg += fmt.Sprintf("\t&emsp;Announces: %d<br>\n", dhtStats.SuccessfulOutboundAnnouncePeerQueries)
+		msg += fmt.Sprintf("\t&emsp;Outstanding transactions: %d<br>\n", dhtStats.OutstandingTransactions)
+	}
+
+	sort.Slice(state.Torrents, func(i, j int) bool {
+		return state.Torrents[i].Hash().HexString() < state.Torrents[j].Hash().HexString()
+	})
+	msg += "Torrents:<br>\n"
+	for _, t := range state.Torrents {
+		st := t.Stats()
+		msg += fmt.Sprintf("Name: %v<br>\n", st.Name)
+		msg += fmt.Sprintf("Hash: %v<br>\n", st.Hash)
+		msg += fmt.Sprintf("Status: %v<br>\n", st.TorrentStatus)
+		msg += fmt.Sprintf("Loaded Size: %v<br>\n", bytes.Format(st.LoadedSize))
+		msg += fmt.Sprintf("Torrent Size: %v<br>\n<br>\n", bytes.Format(st.TorrentSize))
+
+		msg += fmt.Sprintf("Preloaded Bytes: %v<br>\n", bytes.Format(st.PreloadedBytes))
+		msg += fmt.Sprintf("Preload Size: %v<br>\n<br>\n", bytes.Format(st.PreloadSize))
+
+		msg += fmt.Sprintf("Download Speed: %v/Sec<br>\n", utils.Format(st.DownloadSpeed))
+		msg += fmt.Sprintf("Upload Speed: %v/Sec<br>\n<br>\n", utils.Format(st.UploadSpeed))
+
+		msg += fmt.Sprintf("\t&emsp;TotalPeers: %v<br>\n", st.TotalPeers)
+		msg += fmt.Sprintf("\t&emsp;PendingPeers: %v<br>\n", st.PendingPeers)
+		msg += fmt.Sprintf("\t&emsp;ActivePeers: %v<br>\n", st.ActivePeers)
+		msg += fmt.Sprintf("\t&emsp;ConnectedSeeders: %v<br>\n", st.ConnectedSeeders)
+		msg += fmt.Sprintf("\t&emsp;HalfOpenPeers: %v<br>\n", st.HalfOpenPeers)
+
+		msg += fmt.Sprintf("\t&emsp;BytesWritten: %v (%v)<br>\n", st.BytesWritten, bytes.Format(st.BytesWritten))
+		msg += fmt.Sprintf("\t&emsp;BytesWrittenData: %v (%v)<br>\n", st.BytesWrittenData, bytes.Format(st.BytesWrittenData))
+		msg += fmt.Sprintf("\t&emsp;BytesRead: %v (%v)<br>\n", st.BytesRead, bytes.Format(st.BytesRead))
+		msg += fmt.Sprintf("\t&emsp;BytesReadData: %v (%v)<br>\n", st.BytesReadData, bytes.Format(st.BytesReadData))
+		msg += fmt.Sprintf("\t&emsp;BytesReadUsefulData: %v (%v)<br>\n", st.BytesReadUsefulData, bytes.Format(st.BytesReadUsefulData))
+		msg += fmt.Sprintf("\t&emsp;ChunksWritten: %v<br>\n", st.ChunksWritten)
+		msg += fmt.Sprintf("\t&emsp;ChunksRead: %v<br>\n", st.ChunksRead)
+		msg += fmt.Sprintf("\t&emsp;ChunksReadUseful: %v<br>\n", st.ChunksReadUseful)
+		msg += fmt.Sprintf("\t&emsp;ChunksReadWasted: %v<br>\n", st.ChunksReadWasted)
+		msg += fmt.Sprintf("\t&emsp;PiecesDirtiedGood: %v<br>\n", st.PiecesDirtiedGood)
+		msg += fmt.Sprintf("\t&emsp;PiecesDirtiedBad: %v<br>\n<br>\n", st.PiecesDirtiedBad)
+		if len(st.FileStats) > 0 {
+			msg += fmt.Sprintf("\t&emsp;Files:<br>\n")
+			for _, f := range st.FileStats {
+				msg += fmt.Sprintf("\t&emsp;\t&emsp;%v Size:%v<br>\n", f.Path, bytes.Format(f.Length))
+			}
+		}
+
+		hash := metainfo.NewHashFromHex(st.Hash)
+		cState := bts.CacheState(hash)
+		if cState != nil {
+			msg += fmt.Sprintf("CacheType:<br>\n")
+			msg += fmt.Sprintf("Capacity: %v<br>\n", bytes.Format(cState.Capacity))
+			msg += fmt.Sprintf("Filled: %v<br>\n", bytes.Format(cState.Filled))
+			msg += fmt.Sprintf("PiecesLength: %v<br>\n", bytes.Format(cState.PiecesLength))
+			msg += fmt.Sprintf("PiecesCount: %v<br>\n", cState.PiecesCount)
+			for _, p := range cState.Pieces {
+				msg += fmt.Sprintf("\t&emsp;Piece: %v\t&emsp; Access: %s\t&emsp; Buffer size: %d(%s)\t&emsp; Complete: %v\t&emsp; Hash: %s\n<br>", p.Id, p.Accessed.Format("15:04:05.000"), p.BufferSize, bytes.Format(int64(p.BufferSize)), p.Completed, p.Hash)
+			}
+		}
+		msg += "<hr><br><br>\n\n"
+	}
+	//msg += `
+	//<script>
+	//document.addEventListener("DOMContentLoaded", function(event) {
+	//	setTimeout(function(){
+	//		location.reload();
+	//	}, 1000);
+	//});
+	//</script>
+	//
+	//`
+	return c.HTML(http.StatusOK, msg)
+}

src/server/web/Server.go

@@ -0,0 +1,151 @@
+package server
+
+import (
+	"fmt"
+	"log"
+	"net"
+	"net/http"
+	"os"
+	"runtime"
+	"time"
+
+	"server/settings"
+	"server/torr"
+	"server/version"
+	"server/web/mods"
+	"server/web/templates"
+
+	"github.com/anacrolix/sync"
+	"github.com/labstack/echo"
+	"github.com/labstack/echo/middleware"
+)
+
+var (
+	server *echo.Echo
+	bts    *torr.BTServer
+
+	mutex   sync.Mutex
+	fnMutex sync.Mutex
+	err     error
+)
+
+func Start(port string) {
+	runtime.GOMAXPROCS(runtime.NumCPU())
+
+	fmt.Println("Start web server, version:", version.Version)
+
+	bts = torr.NewBTS()
+	err := bts.Connect()
+	if err != nil {
+		fmt.Println("Error start torrent client:", err)
+		return
+	}
+
+	mutex.Lock()
+	server = echo.New()
+	server.HideBanner = true
+	server.HidePort = true
+	server.HTTPErrorHandler = HTTPErrorHandler
+
+	//server.Use(middleware.Logger())
+	server.Use(middleware.Recover())
+
+	templates.InitTemplate(server)
+	initTorrent(server)
+	initSettings(server)
+	initInfo(server)
+	initAbout(server)
+	mods.InitMods(server)
+
+	server.GET("/", mainPage)
+	server.GET("/echo", echoPage)
+	server.POST("/shutdown", shutdownPage)
+	server.GET("/js/api.js", templates.Api_JS)
+
+	go func() {
+		defer mutex.Unlock()
+
+		server.Listener, err = net.Listen("tcp", "0.0.0.0:"+port)
+		if err == nil {
+			err = server.Start("0.0.0.0:" + port)
+		}
+		server = nil
+		if err != nil {
+			fmt.Println("Error start web server:", err)
+		}
+	}()
+}
+
+func Stop() {
+	fnMutex.Lock()
+	defer fnMutex.Unlock()
+	if server != nil {
+		fmt.Println("Stop web server")
+		server.Close()
+		server = nil
+		if bts != nil {
+			bts.Disconnect()
+			bts = nil
+		}
+	}
+}
+
+func Wait() error {
+	mutex.Lock()
+	mutex.Unlock()
+	return err
+}
+
+func mainPage(c echo.Context) error {
+	return c.Render(http.StatusOK, "mainPage", nil)
+}
+
+func echoPage(c echo.Context) error {
+	return c.String(http.StatusOK, version.Version)
+}
+
+func shutdownPage(c echo.Context) error {
+	go func() {
+		Stop()
+		settings.CloseDB()
+		time.Sleep(time.Second * 2)
+		os.Exit(5)
+	}()
+	return c.NoContent(http.StatusOK)
+}
+
+func HTTPErrorHandler(err error, c echo.Context) {
+	var (
+		code = http.StatusInternalServerError
+		msg  interface{}
+	)
+
+	if he, ok := err.(*echo.HTTPError); ok {
+		code = he.Code
+		msg = he.Message
+		if he.Internal != nil {
+			msg = fmt.Sprintf("%v, %v", err, he.Internal)
+		}
+	} else {
+		msg = http.StatusText(code)
+	}
+	if _, ok := msg.(string); ok {
+		msg = echo.Map{"message": msg}
+	}
+
+	if code != 404 && c.Request().URL.Path != "/torrent/stat" {
+		log.Println("Web server error:", err, c.Request().URL)
+	}
+
+	// Send response
+	if !c.Response().Committed {
+		if c.Request().Method == echo.HEAD { // Issue #608
+			err = c.NoContent(code)
+		} else {
+			err = c.JSON(code, msg)
+		}
+		if err != nil {
+			c.Logger().Error(err)
+		}
+	}
+}

src/server/web/Settings.go

@@ -0,0 +1,52 @@
+package server
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"net/http"
+
+	"server/settings"
+
+	"github.com/labstack/echo"
+)
+
+func initSettings(e *echo.Echo) {
+	e.GET("/settings", settingsPage)
+	e.POST("/settings/read", settingsRead)
+	e.POST("/settings/write", settingsWrite)
+}
+
+func settingsPage(c echo.Context) error {
+	return c.Render(http.StatusOK, "settingsPage", nil)
+}
+
+func settingsRead(c echo.Context) error {
+	return c.JSON(http.StatusOK, settings.Get())
+}
+
+func settingsWrite(c echo.Context) error {
+	err := getJsSettings(c)
+	if err != nil {
+		return echo.NewHTTPError(http.StatusBadRequest, err.Error())
+	}
+	settings.SaveSettings()
+	return c.JSON(http.StatusOK, "Ok")
+}
+
+func getJsSettings(c echo.Context) error {
+	buf, _ := ioutil.ReadAll(c.Request().Body)
+	decoder := json.NewDecoder(bytes.NewBuffer(buf))
+	err := decoder.Decode(settings.Get())
+	if err != nil {
+		if ute, ok := err.(*json.UnmarshalTypeError); ok {
+			return echo.NewHTTPError(http.StatusBadRequest, fmt.Sprintf("Unmarshal type error: expected=%v, got=%v, offset=%v", ute.Type, ute.Value, ute.Offset))
+		} else if se, ok := err.(*json.SyntaxError); ok {
+			return echo.NewHTTPError(http.StatusBadRequest, fmt.Sprintf("Syntax error: offset=%v, error=%v", se.Offset, se.Error()))
+		} else {
+			return echo.NewHTTPError(http.StatusBadRequest, err.Error())
+		}
+	}
+	return nil
+}

src/server/web/Torrent.go

@@ -0,0 +1,659 @@
+package server
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"net/http"
+	"net/url"
+	"sort"
+	"strconv"
+	"strings"
+	"time"
+
+	"server/settings"
+	"server/torr"
+	"server/utils"
+	"server/web/helpers"
+
+	"github.com/anacrolix/missinggo/httptoo"
+	"github.com/anacrolix/torrent/metainfo"
+	"github.com/labstack/echo"
+)
+
+func initTorrent(e *echo.Echo) {
+	e.POST("/torrent/add", torrentAdd)
+	e.POST("/torrent/upload", torrentUpload)
+	e.POST("/torrent/get", torrentGet)
+	e.POST("/torrent/rem", torrentRem)
+	e.POST("/torrent/list", torrentList)
+	e.POST("/torrent/stat", torrentStat)
+	e.POST("/torrent/cache", torrentCache)
+	e.POST("/torrent/drop", torrentDrop)
+
+	e.GET("/torrent/restart", torrentRestart)
+
+	e.GET("/torrent/playlist.m3u", torrentPlayListAll)
+
+	e.GET("/torrent/play", torrentPlay)
+	e.HEAD("/torrent/play", torrentPlay)
+
+	e.GET("/torrent/view/:hash/:file", torrentView)
+	e.HEAD("/torrent/view/:hash/:file", torrentView)
+	e.GET("/torrent/preload/:hash/:file", torrentPreload)
+	e.GET("/torrent/preload/:size/:hash/:file", torrentPreloadSize)
+}
+
+type TorrentJsonRequest struct {
+	Link     string `json:",omitempty"`
+	Hash     string `json:",omitempty"`
+	Title    string `json:",omitempty"`
+	Info     string `json:",omitempty"`
+	DontSave bool   `json:",omitempty"`
+}
+
+type TorrentJsonResponse struct {
+	Name     string
+	Magnet   string
+	Hash     string
+	AddTime  int64
+	Length   int64
+	Status   torr.TorrentStatus
+	Playlist string
+	Info     string
+	Files    []TorFile `json:",omitempty"`
+}
+
+type TorFile struct {
+	Name    string
+	Link    string
+	Preload string
+	Size    int64
+	Viewed  bool
+}
+
+func torrentAdd(c echo.Context) error {
+	jreq, err := getJsReqTorr(c)
+	if err != nil {
+		return echo.NewHTTPError(http.StatusBadRequest, err.Error())
+	}
+
+	if jreq.Link == "" {
+		return echo.NewHTTPError(http.StatusBadRequest, "Link must be non-empty")
+	}
+
+	magnet, err := helpers.GetMagnet(jreq.Link)
+	if err != nil {
+		fmt.Println("Error get magnet:", jreq.Hash, err)
+		return echo.NewHTTPError(http.StatusBadRequest, err.Error())
+	}
+
+	if jreq.Title != "" {
+		magnet.DisplayName = jreq.Title
+	}
+
+	err = helpers.Add(bts, *magnet, !jreq.DontSave)
+	if err != nil {
+		fmt.Println("Error add torrent:", jreq.Hash, err)
+		return echo.NewHTTPError(http.StatusBadRequest, err.Error())
+	}
+
+	if jreq.Info != "" {
+		go func() {
+			utils.AddInfo(magnet.InfoHash.HexString(), jreq.Info)
+		}()
+	}
+
+	return c.String(http.StatusOK, magnet.InfoHash.HexString())
+}
+
+func torrentUpload(c echo.Context) error {
+	form, err := c.MultipartForm()
+	if err != nil {
+		return echo.NewHTTPError(http.StatusBadRequest, err.Error())
+	}
+	defer form.RemoveAll()
+
+	_, dontSave := form.Value["DontSave"]
+	var magnets []metainfo.Magnet
+
+	for _, file := range form.File {
+		torrFile, err := file[0].Open()
+		if err != nil {
+			return err
+		}
+		defer torrFile.Close()
+
+		mi, err := metainfo.Load(torrFile)
+		if err != nil {
+			fmt.Println("Error upload torrent", err)
+			return echo.NewHTTPError(http.StatusBadRequest, err.Error())
+		}
+
+		info, err := mi.UnmarshalInfo()
+		if err != nil {
+			fmt.Println("Error upload torrent", err)
+			return echo.NewHTTPError(http.StatusBadRequest, err.Error())
+		}
+		magnet := mi.Magnet(info.Name, mi.HashInfoBytes())
+		magnets = append(magnets, magnet)
+	}
+
+	ret := make([]string, 0)
+	for _, magnet := range magnets {
+		er := helpers.Add(bts, magnet, !dontSave)
+		if er != nil {
+			err = er
+			fmt.Println("Error add torrent:", magnet.String(), er)
+		}
+		ret = append(ret, magnet.InfoHash.HexString())
+	}
+
+	return c.JSON(http.StatusOK, ret)
+}
+
+func torrentGet(c echo.Context) error {
+	jreq, err := getJsReqTorr(c)
+	if err != nil {
+		return echo.NewHTTPError(http.StatusBadRequest, err.Error())
+	}
+	if jreq.Hash == "" {
+		return echo.NewHTTPError(http.StatusBadRequest, "Hash must be non-empty")
+	}
+
+	tor, err := settings.LoadTorrentDB(jreq.Hash)
+	if err != nil {
+		fmt.Println("Error get torrent:", jreq.Hash, err)
+		return echo.NewHTTPError(http.StatusBadRequest, err.Error())
+	}
+
+	torrStatus := torr.TorrentAdded
+	if tor == nil {
+		hash := metainfo.NewHashFromHex(jreq.Hash)
+		ts := bts.GetTorrent(hash)
+		if ts != nil {
+			torrStatus = ts.Status()
+			tor = toTorrentDB(ts)
+		}
+	}
+
+	if tor == nil {
+		fmt.Println("Error get: torrent not found", jreq.Hash)
+		return echo.NewHTTPError(http.StatusBadRequest, "Error get: torrent not found "+jreq.Hash)
+	}
+
+	js, err := getTorrentJS(tor)
+	if err != nil {
+		fmt.Println("Error get torrent:", tor.Hash, err)
+		return echo.NewHTTPError(http.StatusBadRequest, err.Error())
+	}
+
+	js.Status = torrStatus
+	return c.JSON(http.StatusOK, js)
+}
+
+func torrentRem(c echo.Context) error {
+	jreq, err := getJsReqTorr(c)
+	if err != nil {
+		return echo.NewHTTPError(http.StatusBadRequest, err.Error())
+	}
+	if jreq.Hash == "" {
+		return echo.NewHTTPError(http.StatusBadRequest, "Hash must be non-empty")
+	}
+
+	settings.RemoveTorrentDB(jreq.Hash)
+	bts.RemoveTorrent(metainfo.NewHashFromHex(jreq.Hash))
+
+	return c.JSON(http.StatusOK, nil)
+}
+
+func torrentList(c echo.Context) error {
+	buf, _ := ioutil.ReadAll(c.Request().Body)
+	jsstr := string(buf)
+	decoder := json.NewDecoder(bytes.NewBufferString(jsstr))
+	jsreq := struct {
+		Request int
+	}{}
+	decoder.Decode(&jsreq)
+
+	reqType := jsreq.Request
+
+	js := make([]TorrentJsonResponse, 0)
+	list, _ := settings.LoadTorrentsDB()
+
+	for _, tor := range list {
+		jsTor, err := getTorrentJS(tor)
+		if err != nil {
+			fmt.Println("Error get torrent:", err)
+		} else {
+			js = append(js, *jsTor)
+		}
+	}
+
+	sort.Slice(js, func(i, j int) bool {
+		if js[i].AddTime == js[j].AddTime {
+			return js[i].Name < js[j].Name
+		}
+		return js[i].AddTime > js[j].AddTime
+	})
+
+	slist := bts.List()
+
+	find := func(tjs []TorrentJsonResponse, t *torr.Torrent) bool {
+		for _, j := range tjs {
+			if t.Hash().HexString() == j.Hash {
+				return true
+			}
+		}
+		return false
+	}
+
+	for _, st := range slist {
+		if !find(js, st) {
+			tdb := toTorrentDB(st)
+			jsTor, err := getTorrentJS(tdb)
+			if err != nil {
+				fmt.Println("Error get torrent:", err)
+			} else {
+				jsTor.Status = st.Status()
+				js = append(js, *jsTor)
+			}
+		}
+	}
+
+	if reqType == 1 {
+		ret := make([]TorrentJsonResponse, 0)
+		for _, r := range js {
+			if r.Status == torr.TorrentWorking || len(r.Files) > 0 {
+				ret = append(ret, r)
+			}
+		}
+		return c.JSON(http.StatusOK, ret)
+	} else if reqType == 2 {
+		ret := make([]TorrentJsonResponse, 0)
+		for _, r := range js {
+			if r.Status == torr.TorrentGettingInfo {
+				ret = append(ret, r)
+			}
+		}
+		return c.JSON(http.StatusOK, ret)
+	}
+
+	return c.JSON(http.StatusOK, js)
+}
+
+func torrentStat(c echo.Context) error {
+	jreq, err := getJsReqTorr(c)
+	if err != nil {
+		return echo.NewHTTPError(http.StatusBadRequest, err.Error())
+	}
+	if jreq.Hash == "" {
+		return echo.NewHTTPError(http.StatusBadRequest, "Hash must be non-empty")
+	}
+
+	hash := metainfo.NewHashFromHex(jreq.Hash)
+	tor := bts.GetTorrent(hash)
+	if tor == nil {
+		return echo.NewHTTPError(http.StatusNotFound)
+	}
+	stat := tor.Stats()
+
+	return c.JSON(http.StatusOK, stat)
+}
+
+func torrentCache(c echo.Context) error {
+	jreq, err := getJsReqTorr(c)
+	if err != nil {
+		return echo.NewHTTPError(http.StatusBadRequest, err.Error())
+	}
+	if jreq.Hash == "" {
+		return echo.NewHTTPError(http.StatusBadRequest, "Hash must be non-empty")
+	}
+
+	hash := metainfo.NewHashFromHex(jreq.Hash)
+	stat := bts.CacheState(hash)
+	if stat == nil {
+		return echo.NewHTTPError(http.StatusNotFound)
+	}
+
+	return c.JSON(http.StatusOK, stat)
+}
+
+func preload(hashHex, fileLink string, size int64) *echo.HTTPError {
+	if size > 0 {
+		hash := metainfo.NewHashFromHex(hashHex)
+		tor := bts.GetTorrent(hash)
+		if tor == nil {
+			torrDb, err := settings.LoadTorrentDB(hashHex)
+			if err != nil || torrDb == nil {
+				return echo.NewHTTPError(http.StatusBadRequest, "Torrent not found: "+hashHex)
+			}
+			m, err := metainfo.ParseMagnetURI(torrDb.Magnet)
+			if err != nil {
+				return echo.NewHTTPError(http.StatusBadRequest, "Error parser magnet in db: "+hashHex)
+			}
+			tor, err = bts.AddTorrent(m, nil)
+			if err != nil {
+				return echo.NewHTTPError(http.StatusBadRequest, err.Error())
+			}
+		}
+
+		if !tor.WaitInfo() {
+			return echo.NewHTTPError(http.StatusBadRequest, "torrent closed befor get info")
+		}
+
+		file := helpers.FindFileLink(fileLink, tor.Torrent)
+		if file == nil {
+			return echo.NewHTTPError(http.StatusNotFound, "file in torrent not found: "+fileLink)
+		}
+		tor.Preload(file, size)
+	}
+	return nil
+}
+
+func torrentPreload(c echo.Context) error {
+	hashHex, err := url.PathUnescape(c.Param("hash"))
+	if err != nil {
+		return echo.NewHTTPError(http.StatusBadRequest, err.Error())
+	}
+	fileLink, err := url.PathUnescape(c.Param("file"))
+	if err != nil {
+		return echo.NewHTTPError(http.StatusBadRequest, err.Error())
+	}
+
+	if hashHex == "" {
+		return echo.NewHTTPError(http.StatusBadRequest, "Hash must be non-empty")
+	}
+	if fileLink == "" {
+		return echo.NewHTTPError(http.StatusBadRequest, "File link must be non-empty")
+	}
+
+	errHttp := preload(hashHex, fileLink, settings.Get().PreloadBufferSize)
+	if err != nil {
+		return errHttp
+	}
+
+	return c.NoContent(http.StatusOK)
+}
+
+func torrentPreloadSize(c echo.Context) error {
+	hashHex, err := url.PathUnescape(c.Param("hash"))
+	if err != nil {
+		return echo.NewHTTPError(http.StatusBadRequest, err.Error())
+	}
+	fileLink, err := url.PathUnescape(c.Param("file"))
+	if err != nil {
+		return echo.NewHTTPError(http.StatusBadRequest, err.Error())
+	}
+	szPreload, err := url.PathUnescape(c.Param("size"))
+	if err != nil {
+		return echo.NewHTTPError(http.StatusBadRequest, err.Error())
+	}
+
+	if hashHex == "" {
+		return echo.NewHTTPError(http.StatusBadRequest, "Hash must be non-empty")
+	}
+	if fileLink == "" {
+		return echo.NewHTTPError(http.StatusBadRequest, "File link must be non-empty")
+	}
+
+	var size = settings.Get().PreloadBufferSize
+	if szPreload != "" {
+		sz, err := strconv.Atoi(szPreload)
+		if err == nil && sz > 0 {
+			size = int64(sz) * 1024 * 1024
+		}
+	}
+
+	errHttp := preload(hashHex, fileLink, size)
+	if err != nil {
+		return errHttp
+	}
+	//redirectUrl := c.Scheme() + "://" + c.Request().Host + filepath.Join("/torrent/view/", hashHex, fileLink)
+	//return c.Redirect(http.StatusFound, redirectUrl)
+	return c.NoContent(http.StatusOK)
+}
+
+func torrentDrop(c echo.Context) error {
+	jreq, err := getJsReqTorr(c)
+	if err != nil {
+		return echo.NewHTTPError(http.StatusBadRequest, err.Error())
+	}
+	if jreq.Hash == "" {
+		return echo.NewHTTPError(http.StatusBadRequest, "Hash must be non-empty")
+	}
+
+	bts.RemoveTorrent(metainfo.NewHashFromHex(jreq.Hash))
+	return c.NoContent(http.StatusOK)
+}
+
+func torrentRestart(c echo.Context) error {
+	fmt.Println("Restart torrent engine")
+	err := bts.Reconnect()
+	if err != nil {
+		return echo.NewHTTPError(http.StatusBadRequest, err.Error())
+	}
+	return c.String(http.StatusOK, "Ok")
+}
+
+func torrentPlayListAll(c echo.Context) error {
+	list, err := settings.LoadTorrentsDB()
+	if err != nil {
+		return echo.NewHTTPError(http.StatusInternalServerError, err.Error())
+	}
+
+	m3u := helpers.MakeM3ULists(list, c.Scheme()+"://"+c.Request().Host)
+
+	c.Response().Header().Set("Content-Type", "audio/x-mpegurl")
+	c.Response().Header().Set("Content-Disposition", `attachment; filename="playlist.m3u"`)
+	http.ServeContent(c.Response(), c.Request(), "playlist.m3u", time.Now(), bytes.NewReader([]byte(m3u)))
+	return c.NoContent(http.StatusOK)
+}
+
+func torrentPlay(c echo.Context) error {
+	link := c.QueryParam("link")
+	if link == "" {
+		return echo.NewHTTPError(http.StatusBadRequest, "link should not be empty")
+	}
+	fmt.Println("Play:", c.QueryParams())
+
+	qsave := c.QueryParam("save")
+	qpreload := c.QueryParam("preload")
+	qfile := c.QueryParam("file")
+	qstat := c.QueryParam("stat")
+	mm3u := c.QueryParam("m3u")
+
+	preload := int64(0)
+	stat := strings.ToLower(qstat) == "true"
+
+	if qpreload != "" {
+		preload, _ = strconv.ParseInt(qpreload, 10, 64)
+		if preload > 0 {
+			preload *= 1024 * 1024
+		}
+	}
+
+	magnet, err := helpers.GetMagnet(link)
+	if err != nil {
+		fmt.Println("Error get magnet:", link, err)
+		return echo.NewHTTPError(http.StatusBadRequest, err.Error())
+	}
+
+	tor := bts.GetTorrent(magnet.InfoHash)
+	if tor == nil {
+		tor, err = bts.AddTorrent(*magnet, nil)
+		if err != nil {
+			return echo.NewHTTPError(http.StatusInternalServerError, err.Error())
+		}
+	}
+
+	if stat {
+		return c.JSON(http.StatusOK, getTorPlayState(tor))
+	}
+
+	if !tor.WaitInfo() {
+		return echo.NewHTTPError(http.StatusBadRequest, "torrent closed befor get info")
+	}
+
+	if strings.ToLower(qsave) == "true" {
+		if t, err := settings.LoadTorrentDB(magnet.InfoHash.HexString()); t == nil && err == nil {
+			torrDb := toTorrentDB(tor)
+			if torrDb != nil {
+				settings.SaveTorrentDB(torrDb)
+			}
+		}
+	}
+
+	if strings.ToLower(mm3u) == "true" {
+		mt := tor.Torrent.Metainfo()
+		m3u := helpers.MakeM3UPlayList(tor.Stats(), mt.Magnet(tor.Name(), tor.Hash()).String(), c.Scheme()+"://"+c.Request().Host)
+		c.Response().Header().Set("Content-Type", "audio/x-mpegurl")
+		c.Response().Header().Set("Connection", "close")
+		name := utils.CleanFName(tor.Name()) + ".m3u"
+		c.Response().Header().Set("ETag", httptoo.EncodeQuotedString(fmt.Sprintf("%s/%s", tor.Hash().HexString(), name)))
+		c.Response().Header().Set("Content-Disposition", `attachment; filename="`+name+`"`)
+		http.ServeContent(c.Response(), c.Request(), name, time.Time{}, bytes.NewReader([]byte(m3u)))
+		return c.NoContent(http.StatusOK)
+	}
+
+	files := helpers.GetPlayableFiles(tor.Stats())
+
+	if len(files) == 1 {
+		file := helpers.FindFile(files[0].Id, tor)
+		if file == nil {
+			return echo.NewHTTPError(http.StatusInternalServerError, fmt.Sprint("File", files[0], "not found in torrent", tor.Name()))
+		}
+
+		return bts.Play(tor, file, preload, c)
+	}
+
+	if qfile == "" && len(files) > 1 {
+		return c.JSON(http.StatusOK, getTorPlayState(tor))
+	}
+
+	fileInd, _ := strconv.Atoi(qfile)
+	file := helpers.FindFile(fileInd, tor)
+	if file == nil {
+		return echo.NewHTTPError(http.StatusInternalServerError, fmt.Sprint("File", files[fileInd], "not found in torrent", tor.Name()))
+	}
+	return bts.Play(tor, file, preload, c)
+}
+
+func torrentView(c echo.Context) error {
+	hashHex, err := url.PathUnescape(c.Param("hash"))
+	if err != nil {
+		return echo.NewHTTPError(http.StatusBadRequest, err.Error())
+	}
+	fileLink, err := url.PathUnescape(c.Param("file"))
+	if err != nil {
+		return echo.NewHTTPError(http.StatusBadRequest, err.Error())
+	}
+
+	hash := metainfo.NewHashFromHex(hashHex)
+	tor := bts.GetTorrent(hash)
+	if tor == nil {
+		torrDb, err := settings.LoadTorrentDB(hashHex)
+		if err != nil || torrDb == nil {
+			return echo.NewHTTPError(http.StatusBadRequest, "Torrent not found: "+hashHex)
+		}
+
+		m, err := metainfo.ParseMagnetURI(torrDb.Magnet)
+		if err != nil {
+			return echo.NewHTTPError(http.StatusBadRequest, "Error parser magnet in db: "+hashHex)
+		}
+
+		tor, err = bts.AddTorrent(m, nil)
+		if err != nil {
+			return echo.NewHTTPError(http.StatusBadRequest, err.Error())
+		}
+	}
+
+	if !tor.WaitInfo() {
+		return echo.NewHTTPError(http.StatusBadRequest, "torrent closed befor get info")
+	}
+
+	file := helpers.FindFileLink(fileLink, tor.Torrent)
+	if file == nil {
+		return echo.NewHTTPError(http.StatusNotFound, "File in torrent not found: "+fileLink)
+	}
+	return bts.View(tor, file, c)
+}
+
+func toTorrentDB(t *torr.Torrent) *settings.Torrent {
+	if t == nil {
+		return nil
+	}
+	tor := new(settings.Torrent)
+	tor.Name = t.Name()
+	tor.Hash = t.Hash().HexString()
+	tor.Timestamp = settings.StartTime.Unix()
+	mi := t.Torrent.Metainfo()
+	tor.Magnet = mi.Magnet(t.Name(), t.Torrent.InfoHash()).String()
+	tor.Size = t.Length()
+	files := t.Files()
+	sort.Slice(files, func(i, j int) bool {
+		return files[i].Path() < files[j].Path()
+	})
+	for _, f := range files {
+		tf := settings.File{
+			Name:   f.Path(),
+			Size:   f.Length(),
+			Viewed: false,
+		}
+		tor.Files = append(tor.Files, tf)
+	}
+	return tor
+}
+
+func getTorrentJS(tor *settings.Torrent) (*TorrentJsonResponse, error) {
+	js := new(TorrentJsonResponse)
+	mag, err := metainfo.ParseMagnetURI(tor.Magnet)
+	js.Name = tor.Name
+	if err == nil && len(tor.Name) < len(mag.DisplayName) {
+		js.Name = mag.DisplayName
+	}
+	js.Magnet = tor.Magnet
+	js.Hash = tor.Hash
+	js.AddTime = tor.Timestamp
+	js.Length = tor.Size
+	//fname is fake param for file name
+	js.Playlist = "/torrent/play?link=" + url.QueryEscape(tor.Magnet) + "&m3u=true&fname=" + utils.CleanFName(tor.Name+".m3u")
+	var size int64 = 0
+	for _, f := range tor.Files {
+		size += f.Size
+		tf := TorFile{
+			Name:    f.Name,
+			Link:    "/torrent/view/" + js.Hash + "/" + utils.CleanFName(f.Name),
+			Preload: "/torrent/preload/" + js.Hash + "/" + utils.CleanFName(f.Name),
+			Size:    f.Size,
+			Viewed:  f.Viewed,
+		}
+		js.Files = append(js.Files, tf)
+	}
+	if tor.Size == 0 {
+		js.Length = size
+	}
+
+	js.Info = settings.GetInfo(tor.Hash)
+
+	return js, nil
+}
+
+func getJsReqTorr(c echo.Context) (*TorrentJsonRequest, error) {
+	buf, _ := ioutil.ReadAll(c.Request().Body)
+	jsstr := string(buf)
+	decoder := json.NewDecoder(bytes.NewBufferString(jsstr))
+	js := new(TorrentJsonRequest)
+	err := decoder.Decode(js)
+	if err != nil {
+		if ute, ok := err.(*json.UnmarshalTypeError); ok {
+			return nil, echo.NewHTTPError(http.StatusBadRequest, fmt.Sprintf("Unmarshal type error: expected=%v, got=%v, offset=%v", ute.Type, ute.Value, ute.Offset))
+		} else if se, ok := err.(*json.SyntaxError); ok {
+			return nil, echo.NewHTTPError(http.StatusBadRequest, fmt.Sprintf("Syntax error: offset=%v, error=%v", se.Offset, se.Error()))
+		} else {
+			return nil, echo.NewHTTPError(http.StatusBadRequest, err.Error())
+		}
+	}
+	return js, nil
+}

src/server/web/TorrentState.go

@@ -0,0 +1,67 @@
+package server
+
+import (
+	"server/torr"
+	"server/web/helpers"
+)
+
+type TorrentStat struct {
+	Name string
+	Hash string
+
+	TorrentStatus       int
+	TorrentStatusString string
+
+	LoadedSize  int64
+	TorrentSize int64
+
+	PreloadedBytes int64
+	PreloadSize    int64
+
+	DownloadSpeed float64
+	UploadSpeed   float64
+
+	TotalPeers       int
+	PendingPeers     int
+	ActivePeers      int
+	ConnectedSeeders int
+
+	FileStats []FileStat
+}
+
+type FileStat struct {
+	Id     int
+	Path   string
+	Length int64
+}
+
+func getTorPlayState(tor *torr.Torrent) TorrentStat {
+	tst := tor.Stats()
+	ts := TorrentStat{}
+	ts.Name = tst.Name
+	ts.Hash = tst.Hash
+	ts.TorrentStatus = int(tst.TorrentStatus)
+	ts.TorrentStatusString = tst.TorrentStatusString
+	ts.LoadedSize = tst.LoadedSize
+	ts.TorrentSize = tst.TorrentSize
+	ts.PreloadedBytes = tst.PreloadedBytes
+	ts.PreloadSize = tst.PreloadSize
+	ts.DownloadSpeed = tst.DownloadSpeed
+	ts.UploadSpeed = tst.UploadSpeed
+	ts.TotalPeers = tst.TotalPeers
+	ts.PendingPeers = tst.PendingPeers
+	ts.ActivePeers = tst.ActivePeers
+	ts.ConnectedSeeders = tst.ConnectedSeeders
+
+	files := helpers.GetPlayableFiles(tst)
+	ts.FileStats = make([]FileStat, len(files))
+	for i, f := range files {
+		ts.FileStats[i] = FileStat{
+			Id:     f.Id,
+			Path:   f.Path,
+			Length: f.Length,
+		}
+	}
+
+	return ts
+}

src/server/web/helpers/Buffer.go

@@ -0,0 +1,42 @@
+package helpers
+
+import "bytes"
+
+type SeekingBuffer struct {
+	str    string
+	buffer *bytes.Buffer
+	offset int64
+	size   int64
+}
+
+func NewSeekingBuffer(str string) *SeekingBuffer {
+	return &SeekingBuffer{
+		str:    str,
+		buffer: bytes.NewBufferString(str),
+		offset: 0,
+	}
+}
+
+func (fb *SeekingBuffer) Read(p []byte) (n int, err error) {
+	n, err = fb.buffer.Read(p)
+	fb.offset += int64(n)
+	return n, err
+}
+
+func (fb *SeekingBuffer) Seek(offset int64, whence int) (ret int64, err error) {
+	var newoffset int64
+	switch whence {
+	case 0:
+		newoffset = offset
+	case 1:
+		newoffset = fb.offset + offset
+	case 2:
+		newoffset = int64(len(fb.str)) - offset
+	}
+	if newoffset == fb.offset {
+		return newoffset, nil
+	}
+	fb.buffer = bytes.NewBufferString(fb.str[newoffset:])
+	fb.offset = newoffset
+	return fb.offset, nil
+}

src/server/web/helpers/M3u.go

@@ -0,0 +1,33 @@
+package helpers
+
+import (
+	"fmt"
+	"net/url"
+
+	"server/settings"
+	"server/torr"
+	"server/utils"
+)
+
+func MakeM3ULists(torrents []*settings.Torrent, host string) string {
+	m3u := "#EXTM3U\n"
+
+	for _, t := range torrents {
+		m3u += "#EXTINF:0," + t.Name + "\n"
+		m3u += host + "/torrent/play?link=" + url.QueryEscape(t.Magnet) + "&m3u=true&fname=" + utils.CleanFName(t.Name+".m3u") + "\n\n"
+	}
+	return m3u
+}
+
+func MakeM3UPlayList(tor torr.TorrentStats, magnet string, host string) string {
+	m3u := "#EXTM3U\n"
+
+	for _, f := range tor.FileStats {
+		if GetMimeType(f.Path) != "*/*" {
+			m3u += "#EXTINF:-1," + f.Path + "\n"
+			mag := url.QueryEscape(magnet)
+			m3u += host + "/torrent/play?link=" + mag + "&file=" + fmt.Sprint(f.Id) + "\n\n"
+		}
+	}
+	return m3u
+}

src/server/web/helpers/Magnet.go

@@ -0,0 +1,86 @@
+package helpers
+
+import (
+	"errors"
+	"net/http"
+	"net/url"
+	"strings"
+	"time"
+
+	"github.com/anacrolix/torrent/metainfo"
+)
+
+func GetMagnet(link string) (*metainfo.Magnet, error) {
+	url, err := url.Parse(link)
+	if err != nil {
+		return nil, err
+	}
+
+	var mag *metainfo.Magnet
+	switch strings.ToLower(url.Scheme) {
+	case "magnet":
+		mag, err = getMag(url.String())
+	case "http", "https":
+		mag, err = getMagFromHttp(url.String())
+	case "":
+		mag, err = getMag("magnet:?xt=urn:btih:" + url.Path)
+	default:
+		mag, err = getMagFromFile(url.Path)
+	}
+	if err != nil {
+		return nil, err
+	}
+
+	return mag, nil
+}
+
+func getMag(link string) (*metainfo.Magnet, error) {
+	mag, err := metainfo.ParseMagnetURI(link)
+	return &mag, err
+}
+
+func getMagFromHttp(url string) (*metainfo.Magnet, error) {
+	req, err := http.NewRequest("GET", url, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	client := new(http.Client)
+	client.Timeout = time.Duration(time.Second * 30)
+	req.Header.Set("User-Agent", "DWL/1.1.1 (Torrent)")
+
+	resp, err := client.Do(req)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+	if resp.StatusCode != 200 {
+		return nil, errors.New(resp.Status)
+	}
+
+	minfo, err := metainfo.Load(resp.Body)
+	if err != nil {
+		return nil, err
+	}
+	info, err := minfo.UnmarshalInfo()
+	if err != nil {
+		return nil, err
+	}
+	mag := minfo.Magnet(info.Name, minfo.HashInfoBytes())
+	return &mag, nil
+}
+
+func getMagFromFile(path string) (*metainfo.Magnet, error) {
+
+	minfo, err := metainfo.LoadFromFile(path)
+	if err != nil {
+		return nil, err
+	}
+	info, err := minfo.UnmarshalInfo()
+	if err != nil {
+		return nil, err
+	}
+
+	mag := minfo.Magnet(info.Name, minfo.HashInfoBytes())
+	return &mag, nil
+}

src/server/web/helpers/Mime.go

@@ -0,0 +1,89 @@
+package helpers
+
+import (
+	"path/filepath"
+
+	"server/torr"
+)
+
+var extVideo = map[string]interface{}{
+	".3g2":   nil,
+	".3gp":   nil,
+	".aaf":   nil,
+	".asf":   nil,
+	".avchd": nil,
+	".avi":   nil,
+	".drc":   nil,
+	".flv":   nil,
+	".m2ts":  nil,
+	".ts":    nil,
+	".m2v":   nil,
+	".m4p":   nil,
+	".m4v":   nil,
+	".mkv":   nil,
+	".mng":   nil,
+	".mov":   nil,
+	".mp2":   nil,
+	".mp4":   nil,
+	".mpe":   nil,
+	".mpeg":  nil,
+	".mpg":   nil,
+	".mpv":   nil,
+	".mxf":   nil,
+	".nsv":   nil,
+	".ogg":   nil,
+	".ogv":   nil,
+	".qt":    nil,
+	".rm":    nil,
+	".rmvb":  nil,
+	".roq":   nil,
+	".svi":   nil,
+	".vob":   nil,
+	".webm":  nil,
+	".wmv":   nil,
+	".yuv":   nil,
+}
+
+var extAudio = map[string]interface{}{
+	".aac":  nil,
+	".aiff": nil,
+	".ape":  nil,
+	".au":   nil,
+	".flac": nil,
+	".gsm":  nil,
+	".it":   nil,
+	".m3u":  nil,
+	".m4a":  nil,
+	".mid":  nil,
+	".mod":  nil,
+	".mp3":  nil,
+	".mpa":  nil,
+	".pls":  nil,
+	".ra":   nil,
+	".s3m":  nil,
+	".sid":  nil,
+	".wav":  nil,
+	".wma":  nil,
+	".xm":   nil,
+}
+
+func GetMimeType(filename string) string {
+	ext := filepath.Ext(filename)
+	if _, ok := extVideo[ext]; ok {
+		return "video/*"
+	}
+	if _, ok := extAudio[ext]; ok {
+		return "audio/*"
+	}
+	return "*/*"
+}
+
+func GetPlayableFiles(st torr.TorrentStats) []torr.TorrentFileStat {
+	files := make([]torr.TorrentFileStat, 0)
+	for _, f := range st.FileStats {
+		if GetMimeType(f.Path) != "*/*" {
+			files = append(files, f)
+		}
+	}
+	return files
+}

src/server/web/helpers/Torrent.go

@@ -0,0 +1,66 @@
+package helpers
+
+import (
+	"fmt"
+	"sort"
+	"time"
+
+	"server/settings"
+	"server/torr"
+	"server/utils"
+
+	"github.com/anacrolix/torrent"
+	"github.com/anacrolix/torrent/metainfo"
+)
+
+func Add(bts *torr.BTServer, magnet metainfo.Magnet, save bool) error {
+	fmt.Println("Adding torrent", magnet.String())
+	_, err := bts.AddTorrent(magnet, func(torr *torr.Torrent) {
+		torDb := new(settings.Torrent)
+		torDb.Name = torr.Name()
+		torDb.Hash = torr.Hash().HexString()
+		torDb.Size = torr.Length()
+		torDb.Magnet = magnet.String()
+		torDb.Timestamp = time.Now().Unix()
+		files := torr.Files()
+		sort.Slice(files, func(i, j int) bool {
+			return files[i].Path() < files[j].Path()
+		})
+		for _, f := range files {
+			ff := settings.File{
+				f.Path(),
+				f.Length(),
+				false,
+			}
+			torDb.Files = append(torDb.Files, ff)
+		}
+
+		if save {
+			err := settings.SaveTorrentDB(torDb)
+			if err != nil {
+				fmt.Println("Error add torrent to db:", err)
+			}
+		}
+	})
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func FindFileLink(fileLink string, torr *torrent.Torrent) *torrent.File {
+	for _, f := range torr.Files() {
+		if utils.CleanFName(f.Path()) == fileLink {
+			return f
+		}
+	}
+	return nil
+}
+
+func FindFile(fileInd int, tor *torr.Torrent) *torrent.File {
+	files := tor.Files()
+	if len(files) == 0 || fileInd < 0 || fileInd >= len(files) {
+		return nil
+	}
+	return files[fileInd]
+}

src/server/web/mods/Mods.go

@@ -0,0 +1,22 @@
+package mods
+
+import (
+	"github.com/labstack/echo"
+)
+
+func InitMods(e *echo.Echo) {
+	e.GET("/test", test)
+}
+
+func test(c echo.Context) error {
+	return c.HTML(200, `
+<!DOCTYPE html>
+<html lang="ru">
+<head>
+	<meta charset="utf-8">
+	<script src="http://code.jquery.com/jquery-1.11.3.min.js"></script>
+	<script src="/js/api.js"></script>
+</head>
+<body>
+</body>`)
+}

src/server/web/templates/AboutPage.go

@@ -0,0 +1,119 @@
+package templates
+
+import "server/version"
+
+var aboutPage = `
+<!DOCTYPE html>
+<html lang="ru">
+<head>
+	<meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <link href="` + faviconB64 + `" rel="icon" type="image/x-icon">
+    <script src="/js/api.js"></script>
+    <link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.1.0/css/all.css" integrity="sha384-lKuwvrZot6UHsBSfcMvOkWwlCMgc0TaWr+30HWe3a4ltaBwTZhyTEggF5tJv8tbt" crossorigin="anonymous">
+    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" integrity="sha384-WskhaSGFgHYWDcbwN70/dfYBj47jz9qbsMId/iRN3ewGhXQFZCSftd1LZCfmhktB" crossorigin="anonymous">
+    <script src="http://code.jquery.com/jquery-1.11.3.min.js"></script>
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js" integrity="sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49" crossorigin="anonymous"></script>
+    <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js" integrity="sha384-smHYKdLADwkXOn1EmN1qk/HfnUcbVRZyYmZ4qpPea6sjB/pTJ0euyQp0Mk8ck+5T" crossorigin="anonymous"></script>
+	<title>About</title>
+</head>
+<body>
+<style type="text/css">
+	.inline{
+		display:inline;
+		padding-left: 2%;
+	}
+	.center {
+		display: block;
+		margin-left: auto;
+		margin-right: auto;
+	}
+	.content {
+		padding: 20px;
+	}
+</style>
+	<nav class="navbar navbar-expand-lg navbar-dark bg-dark">
+    	<a class="btn navbar-btn pull-left" href="/"><i class="fas fa-arrow-left"></i></a>
+        <span class="navbar-brand mx-auto">
+			О программе
+		</span>
+    </nav>
+	<div class="content">
+		<img class="center" src='` + faviconB64 + `'/>
+		<h3 align="middle">TorrServer</h3>
+		<h4 align="middle">` + version.Version + `</h4>
+		
+		<h4>Поддержка проекта:</h4>
+		<a class="inline" target="_blank" href="https://www.paypal.me/yourok">PayPal</a>
+		<br>
+		<a class="inline" target="_blank" href="https://money.yandex.ru/to/410013733697114/100">Yandex.Деньги</a>
+		<br>
+		<hr align="left" width="25%">
+		<br>
+		
+		<h4>Инструкция по использованию:</h4>
+			<a class="inline" target="_blank" href="https://4pda.ru/forum/index.php?showtopic=896840&st=0#entry72570782">4pda.ru</a>
+			<p class="inline">Спасибо <b>MadAndron</b></p> 
+		<br>
+		<hr align="left" width="25%">
+		<br>
+		
+		<h4>Автор:</h4>
+			<b class="inline">YouROK</b>
+			<br>
+			<i class="inline">Email:</i>
+			<a target="_blank" class="inline" href="mailto:8yourok8@gmail.com">8YouROK8@gmail.com</a>
+			<br>
+			<i class="inline">Site: </i>
+			<a target="_blank" class="inline" href="https://github.com/YouROK">GitHub.com/YouROK</a>
+		<br>
+		<hr align="left" width="25%">
+		<br>
+		
+		<h4>Спасибо всем, кто тестировал и помогал:</h4>
+			<b class="inline">kuzzman</b>
+			<br>
+			<i class="inline">Site: </i>
+			<a target="_blank" class="inline" href="https://4pda.ru/forum/index.php?showuser=1259550">4pda.ru</a>
+			<a target="_blank" class="inline" href="http://tv-box.pp.ua">tv-box.pp.ua</a>
+		<br>
+		<br>
+			<b class="inline">MadAndron</b>
+			<br>
+			<i class="inline">Site:</i>
+			<a target="_blank" class="inline" href="https://4pda.ru/forum/index.php?showuser=1543999">4pda.ru</a>
+		<br>
+		<br>
+			<b class="inline">SpAwN_LMG</b>
+			<br>
+			<i class="inline">Site:</i>
+			<a target="_blank" class="inline" href="https://4pda.ru/forum/index.php?showuser=700929">4pda.ru</a>
+		<br>
+		<br>
+			<b class="inline">Zivio</b>
+			<br>
+			<i class="inline">Site:</i>
+			<a target="_blank" class="inline" href="https://4pda.ru/forum/index.php?showuser=1195633">4pda.ru</a>
+			<a target="_blank" class="inline" href="http://forum.hdtv.ru/index.php?showtopic=19020">forum.hdtv.ru</a>
+		<br>
+		<br>
+			<b class="inline">Tw1cker Руслан Пахнев</b>
+			<br>
+			<i class="inline">Site:</i>
+			<a target="_blank" class="inline" href="https://4pda.ru/forum/index.php?showuser=2002724">4pda.ru</a>
+			<a target="_blank" class="inline" href="https://github.com/Nemiroff">GitHub.com/Nemiroff</a>
+		<br>
+		<br>
+	</div>
+	<footer class="page-footer navbar-dark bg-dark">
+		<span class="navbar-brand d-flex justify-content-center">
+			<center><h4>TorrServer ` + version.Version + `</h4></center>
+		</span>
+    </footer>
+</body>
+</html>
+`
+
+func (t *Template) parseAboutPage() {
+	parsePage(t, "aboutPage", aboutPage)
+}

src/server/web/templates/CachePage.go

@@ -0,0 +1,167 @@
+package templates
+
+import (
+	"server/version"
+)
+
+var cachePage = `
+<!DOCTYPE html>
+<html lang="ru">
+	<head>
+		<meta charset="utf-8">
+		<meta name="viewport" content="width=device-width, initial-scale=1">
+		<link href="` + faviconB64 + `" rel="icon" type="image/x-icon">
+		<script src="/js/api.js"></script>
+		<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.1.0/css/all.css" integrity="sha384-lKuwvrZot6UHsBSfcMvOkWwlCMgc0TaWr+30HWe3a4ltaBwTZhyTEggF5tJv8tbt" crossorigin="anonymous">
+		<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" integrity="sha384-WskhaSGFgHYWDcbwN70/dfYBj47jz9qbsMId/iRN3ewGhXQFZCSftd1LZCfmhktB" crossorigin="anonymous">
+		<script src="http://code.jquery.com/jquery-1.11.3.min.js"></script>
+		<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js" integrity="sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49" crossorigin="anonymous"></script>
+		<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js" integrity="sha384-smHYKdLADwkXOn1EmN1qk/HfnUcbVRZyYmZ4qpPea6sjB/pTJ0euyQp0Mk8ck+5T" crossorigin="anonymous"></script>
+		<title>TorrServer ` + version.Version + `</title>
+	</head>
+	<body>
+		<style>
+			.wrap {
+				white-space: normal;
+				word-wrap: break-word;
+				word-break: break-all;
+			}
+			.content {
+				margin: 1%;
+			}
+			.cache {
+				display: grid;
+            	grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
+			}
+			.piece {
+				border: 1px dashed white;
+				font-size: 16px;
+				padding: 2px;
+				text-align: center;
+			}
+		</style>
+		
+		<nav class="navbar navbar-expand-lg navbar-dark bg-dark">
+			<a class="btn navbar-btn pull-left" href="/"><i class="fas fa-arrow-left"></i></a>
+			<span class="navbar-brand mx-auto">
+			TorrServer ` + version.Version + `
+			</span>
+		</nav>
+		<div class="content">
+			<div id="torrents"></div>
+			<div id="cacheInfo"></div>
+			<div class="cache" id="cache"></div>
+		</div>
+		<footer class="page-footer navbar-dark bg-dark">
+			<span class="navbar-brand d-flex justify-content-center">
+			<a rel="external" style="text-decoration: none;" href="/about">Описание</a>
+			</span>
+		</footer>
+	</body>
+	<script>
+		$( document ).ready(function() {
+			setInterval(updateState, 1000);
+		});
+		
+		var cacheHash = "";
+		var hashTorrents = "";
+		
+		function updateTorrents(){
+			listTorrent(function(data){
+				var currHashTorrs = ""; 
+				for(var key in data) {
+					var tor = data[key];
+					currHashTorrs += tor.Hash;
+				}
+				if (currHashTorrs != hashTorrents){
+					hashTorrents = currHashTorrs; 
+					var html = "";
+					html += '<div class="btn-group-vertical d-flex" role="group">';
+					for(var key in data) {
+						var tor = data[key];
+						html += '<button type="button" class="btn btn-secondary wrap w-100" onclick="setCache(\''+tor.Hash+'\')">'+tor.Name+'</button>';
+					}
+					html += '</div>'
+					$("#torrents").empty();
+					$(html).appendTo($("#torrents"));
+				}
+			});
+		}
+		
+		function updateCache(){
+			var cache = $("#cache");
+			if (cacheHash!=""){
+				cacheTorrent(cacheHash, function(data){
+					var html = "";
+					var st = data; 
+					html += '<span>Hash: '+st.Hash+'</span><br>';
+					html += '<span>Capacity: '+humanizeSize(st.Capacity)+'</span><br>';
+					html += '<span>Filled: '+humanizeSize(st.Filled)+'</span><br>';
+					html += '<span>Pieces length: '+humanizeSize(st.PiecesLength)+'</span><br>';
+					html += '<span>Pieces count: '+st.PiecesCount+'</span><br>';
+					$("#cacheInfo").html(html);
+					makePieces(st.PiecesCount);
+					for(var i = 0; i < st.PiecesCount; i++) {
+						var color = "silver";
+						var size = "";
+						var piece = st.Pieces[i];
+						if (piece){
+							if (piece.Completed && piece.BufferSize >= st.PiecesLength)
+								color = "green";
+							else if (piece.Completed && piece.BufferSize == 0)
+								color = "silver";
+							else if (!piece.Completed && piece.BufferSize > 0)
+								color = "red";
+							size = ' ' + humanizeSize(piece.BufferSize);
+						}
+						setPiece(i,color,size);
+					}
+				},function(){
+					$("#cacheInfo").empty();
+					cache.empty();
+				});
+			}
+		}
+		
+		function makePieces(len){
+			var cache = $("#cache");
+			if (cache.children().length==len)
+				return;
+			var html = "";
+			for(var i = 0; i < len; i++) {
+				html += '<span class="piece" id="p'+i+'" style="background-color: silver;">'+i+'</span>';
+			}
+			cache.html(html);
+		}
+			
+		function setPiece(i, color, size){
+			var piece = $("#p"+i);
+			piece.delay(100).css("background-color",color);
+			piece.text(i+''+size);
+		}
+			
+		function contains(arr, elem) {
+			for (var i = 0; i < arr.length; i++) {
+				if (arr[i].Id === elem) {
+					return true;
+				}
+			}
+			return false;
+		}
+			
+		function updateState(){
+			updateTorrents();
+			updateCache();
+		}
+		
+		function setCache(hash){
+			cacheHash = hash;
+			updateCache();
+		}
+	</script>
+</html>
+`
+
+func (t *Template) parseCachePage() {
+	parsePage(t, "cachePage", cachePage)
+}

src/server/web/templates/MainPage.go

@@ -0,0 +1,300 @@
+package templates
+
+import (
+	"server/version"
+)
+
+var mainPage = `
+<!DOCTYPE html>
+<html lang="ru">
+	<head>
+		<meta charset="utf-8">
+		<meta name="viewport" content="width=device-width, initial-scale=1">
+		<link href="` + faviconB64 + `" rel="icon" type="image/x-icon">
+		<script src="/js/api.js"></script>
+		<link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.1.0/css/all.css" integrity="sha384-lKuwvrZot6UHsBSfcMvOkWwlCMgc0TaWr+30HWe3a4ltaBwTZhyTEggF5tJv8tbt" crossorigin="anonymous">
+		<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" integrity="sha384-WskhaSGFgHYWDcbwN70/dfYBj47jz9qbsMId/iRN3ewGhXQFZCSftd1LZCfmhktB" crossorigin="anonymous">
+		<script src="http://code.jquery.com/jquery-1.11.3.min.js"></script>
+		<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js" integrity="sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49" crossorigin="anonymous"></script>
+		<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js" integrity="sha384-smHYKdLADwkXOn1EmN1qk/HfnUcbVRZyYmZ4qpPea6sjB/pTJ0euyQp0Mk8ck+5T" crossorigin="anonymous"></script>
+		<title>TorrServer ` + version.Version + `</title>
+	</head>
+	<body>
+		<style>
+			.wrap {
+				white-space: normal;
+				word-wrap: break-word;
+				word-break: break-all;
+			}
+			.content {
+				margin: 1%;
+			}
+		</style>
+		
+		<nav class="navbar navbar-expand-lg navbar-dark bg-dark">
+			<span class="navbar-brand mx-auto">
+			TorrServer ` + version.Version + `
+			</span>
+		</nav>
+		<div class="content">
+			<div>
+				<label for="magnet">Добавить торрент: </label>
+				<input id="magnet" class="w-100" autocomplete="off">
+			</div>
+			<div class="btn-group d-flex" role="group">
+				<button id="buttonAdd" class="btn w-100" onclick="addTorr()"><i class="fas fa-plus"></i> Добавить</button>
+				<button id="buttonUpload" class="btn w-100"><i class="fas fa-file-upload"></i> Загрузить файл</button>
+			</div>
+			<br>
+			<div>
+				<a href="/torrent/playlist.m3u" rel="external" class="btn btn-primary w-100" role="button" ><i class="fas fa-th-list"></i> Плейлист всех торрентов</a>
+			</div>
+			<br>
+			<h3>Торренты: </h3>
+			<div id="torrents"></div>
+			<br>
+			<div class="btn-group-vertical d-flex" role="group">
+				<a href="/settings" rel="external" class="btn btn-primary w-100" role="button"><i class="fas fa-cog"></i> Настройки</a>
+				<a href="/cache" rel="external" class="btn btn-primary w-100" role="button"><i class="fas fa-info"></i> Кэш</a>
+				<button id="buttonShutdown" class="btn btn-primary w-100" onclick="shutdown()"><i class="fas fa-power-off"></i> Закрыть сервер</button>
+			</div>
+			<form id="uploadForm" style="display:none" action="/torrent/upload" method="post">
+				<input type="file" id="filesUpload" style="display:none" multiple onchange="uploadTorrent()" name="files"/> 
+			</form>
+		</div>
+		<footer class="page-footer navbar-dark bg-dark">
+			<span class="navbar-brand d-flex justify-content-center">
+			<a rel="external" style="text-decoration: none;" href="/about">Описание</a>
+			</span>
+		</footer>
+		
+		<div class="modal fade" id="preloadModal" role="dialog">
+			<div class="modal-dialog">
+				<div class="modal-content">
+					<div class="modal-header">
+						<h4 class="modal-title wrap" id="preloadName"></h4>
+					</div>
+					<div class="modal-body">
+						<p id="preloadStatus"></p>
+						<p id="preloadBuffer"></p>
+						<p id="preloadPeers"></p>
+						<p id="preloadSpeed"></p>
+						<div class="progress">
+							<div id="preloadProgress" class="progress-bar progress-bar-striped progress-bar-animated" role="progressbar" aria-valuenow="100" aria-valuemin="0" aria-valuemax="100" style="width: 100%"></div>
+						</div>
+						<br>
+						<a id="preloadFileLink" role="button" href="" class="btn btn-secondary wrap w-100"></a>
+					</div>
+					<div class="modal-footer">
+						<button type="button" class="btn btn-danger" data-dismiss="modal">Закрыть</button>
+					</div>
+				</div>
+			</div>
+		</div>
+		<script>
+			function addTorr(){
+				var magnet = $("#magnet").val();
+				$("#magnet").val("");
+				if(magnet!=""){
+					addTorrent(magnet,true,
+					function( data ) {
+						loadTorrents();
+					},
+					function( data ) {
+						alert(data.responseJSON.message);
+					});
+				}
+			}
+			
+			function removeTorr(hash){
+				if(hash!=""){
+					removeTorrent(hash,
+					function( data ) {
+						loadTorrents();
+					},
+					function( data ) {
+						alert(data.responseJSON.message);
+					});
+				}
+			};
+			
+			function shutdown(){
+				shutdownServer(function( data ) {
+						alert(data.responseJSON.message);
+				});
+			}
+			
+			$( document ).ready(function() {
+				watchInfo();
+			});
+			
+			$('#buttonUpload').click(function() {
+			  		$('#filesUpload').click();
+			});
+			
+			function uploadTorrent() {
+				var form = $("#uploadForm");
+				var formData = new FormData(document.getElementById("uploadForm"));
+				var data = new FormData();
+				$.each($('#filesUpload')[0].files, function(i, file) {
+			   		data.append('file-'+i, file);
+				});
+				$.ajax({
+						cache: false,
+						processData: false,
+						contentType: false,
+						type: form.attr('method'),
+						url: form.attr('action'),
+						data: data
+						}).done(function(data) {
+							loadTorrents();
+						}).fail(function(data) {
+							alert(data.responseJSON.message);
+						});
+			}
+			
+			$('#uploadForm').submit(function(event) {
+				event.preventDefault();
+				var form = $(this);
+				$.ajax({
+					type: form.attr('method'),
+					url: form.attr('action'),
+					data: form.serialize()
+					}).done(function(data) {
+						loadTorrents();
+					});
+			});
+			
+			function loadTorrents() {
+				listTorrent(
+					function( data ) {
+						var torrents = $("#torrents");
+						torrents.empty();
+						var html = "";
+						var queueInfo = [];
+						for(var key in data) {
+							var tor = data[key];
+							if (tor.Status==1){
+								queueInfo.push(tor);
+								continue;
+							}
+							html += tor2Html(tor);
+						}
+						if (queueInfo.length>0){
+							html += "<br><hr><h3>Got info: </h3>";
+							for(var key in queueInfo) {
+								var tor = queueInfo[key];
+								html += tor2Html(tor);
+							}
+						}
+						$(html).appendTo(torrents);
+					},
+					function( data ) {
+						alert(data.responseJSON.message);
+					});
+			}
+			
+			function tor2Html(tor){
+				var html = '';
+				var name = "";
+				if (tor.Status==1)
+					name = tor.Name+' '+humanizeSize(tor.Length)+' '+tor.Hash;
+				else
+					name = tor.Name+' '+humanizeSize(tor.Length);
+			
+				html += '<div class="btn-group d-flex" role="group">';
+				html += '	<button type="button" class="btn btn-secondary wrap w-100" data-toggle="collapse" data-target="#info_'+tor.Hash+'">'+name+'</button>';
+				if (tor.Status!=1)
+					html += '	<a role="button" class="btn btn-secondary" href="'+tor.Playlist+'"><i class="fas fa-th-list"></i> Плейлист</a>';
+				else
+					html += '	<button type="button" class="btn btn-secondary" onclick="showPreload(\'\', \''+ tor.Hash +'\');"><i class="fas fa-info"></i></a>';
+				html += '	<button type="button" class="btn btn-secondary" onclick="removeTorrent(\''+tor.Hash+'\');"><i class="fas fa-trash-alt"></i> Удалить</button>';
+				html += '</div>';
+				html += '<div class="collapse" id="info_'+tor.Hash+'">';
+				for(var i in tor.Files){
+					var file = tor.Files[i];
+				  	var ico = "";
+				  	if (file.Viewed)
+				  		ico = '<i class="far fa-eye"></i> ';
+					html += '	<div class="btn-group d-flex" role="group">';
+					html += '		<a role="button" href="'+file.Link+'" class="btn btn-secondary wrap w-100">'+ico+file.Name+" "+humanizeSize(file.Size)+'</a>';
+					html += '		<button type="button" class="btn btn-secondary" onclick="showPreload(\''+ file.Preload +'\', \''+ file.Link +'\', \''+ tor.Hash +'\');"><i class="fas fa-info"></i></button>';
+					html += '	</div>';
+				}
+				html += '<hr></div>';
+				return html;
+			}
+			
+			function watchInfo(){
+				var lastTorrentCount = 0;
+				var lastGettingInfo = 0;
+				setInterval(function() {
+					listTorrent(
+					function( data ) {
+						var gettingInfo = 0;
+						for(var key in data) {
+							var tor = data[key];
+							if (tor.Status==1)
+								gettingInfo++;
+						}
+			
+						if (lastTorrentCount!=data.length || gettingInfo!=lastGettingInfo){
+							loadTorrents();
+							lastTorrentCount = data.length;
+							lastGettingInfo = gettingInfo;
+						}
+					});
+				}, 1000);
+			}
+				
+			function showPreload(preloadlink, fileLink, hash){
+				$('#preloadFileLink').hide(0);
+				$('#preloadFileLink').attr("href","");
+				$('#preloadProgress').width('100%');
+				if (preloadlink!='')
+					preloadTorrent(preloadlink);
+				var ptimer = setInterval(function() {
+					statTorrent(hash,function(data){
+						if (data!=null){
+							$('#preloadStatus').text("Status: " + data.TorrentStatusString);
+							$('#preloadName').text(data.Name);
+							$('#preloadPeers').text("Peers: [" + data.ConnectedSeeders + "] " + data.ActivePeers + " / " + data.TotalPeers);
+							if (data.DownloadSpeed>0)
+								$('#preloadSpeed').text("Speed: "+ humanizeSize(data.DownloadSpeed) + "/Sec");
+							else
+								$('#preloadSpeed').text("Speed:");
+			
+							if (data.PreloadSize>0 && data.PreloadedBytes<data.PreloadSize){
+								var prc = data.PreloadedBytes * 100 / data.PreloadSize;
+								if (prc>100) prc = 100;
+								$('#preloadProgress').width(prc+'%');
+								$('#preloadBuffer').text("Loaded: " + humanizeSize(data.PreloadedBytes) + " / " + humanizeSize(data.PreloadSize)+" "+prc+"%");
+							}else{
+								$('#preloadProgress').width('100%');
+								$('#preloadBuffer').text("Loaded: " + humanizeSize(data.BytesReadUsefulData));
+								$('#preloadProgress').width('100%');
+								if (data.BytesReadUsefulData>0 && fileLink && !$('#preloadFileLink').attr("href")){
+									$('#preloadFileLink').text(data.Name);
+									$('#preloadFileLink').attr("href", fileLink);
+									$('#preloadFileLink').show();
+								}
+							}
+						}
+					},function(){
+						$('#preloadModal').modal('hide');
+					})
+				}, 500);
+				$('#preloadModal').modal('show');
+				$("#preloadModal").on('hidden.bs.modal', function () {
+					clearInterval(ptimer);
+				});
+			}
+			
+		</script>
+	</body>
+</html>
+`
+
+func (t *Template) parseMainPage() {
+	parsePage(t, "mainPage", mainPage)
+}

src/server/web/templates/SettingsPage.go

@@ -0,0 +1,200 @@
+package templates
+
+import "server/version"
+
+var settingsPage = `
+<!DOCTYPE html>
+<html lang="ru">
+
+<head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <link href="` + faviconB64 + `" rel="icon" type="image/x-icon">
+    <script src="/js/api.js"></script>
+    <link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.1.0/css/all.css" integrity="sha384-lKuwvrZot6UHsBSfcMvOkWwlCMgc0TaWr+30HWe3a4ltaBwTZhyTEggF5tJv8tbt" crossorigin="anonymous">
+    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" integrity="sha384-WskhaSGFgHYWDcbwN70/dfYBj47jz9qbsMId/iRN3ewGhXQFZCSftd1LZCfmhktB" crossorigin="anonymous">
+    <script src="http://code.jquery.com/jquery-1.11.3.min.js"></script>
+    <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.3/umd/popper.min.js" integrity="sha384-ZMP7rVo3mIykV+2+9J3UJ46jBk0WLaUAdn689aCwoqbBJiSnjAK/l8WvCWPIPm49" crossorigin="anonymous"></script>
+    <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js" integrity="sha384-smHYKdLADwkXOn1EmN1qk/HfnUcbVRZyYmZ4qpPea6sjB/pTJ0euyQp0Mk8ck+5T" crossorigin="anonymous"></script>
+    <title>TorrServer ` + version.Version + ` Settings</title>
+</head>
+
+<body>
+    <style>
+        .wrap {
+            white-space: normal;
+            word-wrap: break-word;
+            word-break: break-all;
+        }
+        
+        .content {
+            margin: 1%;
+        }
+    </style>
+    <nav class="navbar navbar-expand-lg navbar-dark bg-dark">
+    	<a class="btn navbar-btn pull-left" href="/"><i class="fas fa-arrow-left"></i></a>
+        <span class="navbar-brand mx-auto">
+         TorrServer ` + version.Version + `
+         </span>
+    </nav>
+    <div class="content">
+        <form id="settings">
+            <div class="input-group">
+                <div class="input-group-prepend">
+                    <div class="input-group-text">Размер кэша</div>
+                </div>
+                <input id="CacheSize" class="form-control" type="number" autocomplete="off">
+            </div>
+		<br>
+            <div class="input-group">
+                <div class="input-group-prepend">
+                    <div class="input-group-text">Размер буфера предзагрузки</div>
+                </div>
+                <input id="PreloadBufferSize" class="form-control" type="number" autocomplete="off">
+            </div>
+         	<small class="form-text text-muted">Размеры кэша и буфера указываются в мегабайтах</small>
+		<br>
+            <div class="form-check">
+                <input id="DisableTCP" class="form-check-input" type="checkbox" autocomplete="off">
+                <label for="DisableTCP">Отключить TCP</label>
+            </div>
+            <div class="form-check">
+                <input id="DisableUTP" class="form-check-input" type="checkbox" autocomplete="off">
+                <label for="DisableUTP">Отключить UTP</label>
+            </div>
+            <div class="form-check">
+                <input id="DisableUPNP" class="form-check-input" type="checkbox" autocomplete="off">
+                <label for="DisableUPNP">Отключить UPNP</label>
+            </div>
+            <div class="form-check">
+                <input id="DisableDHT" class="form-check-input" type="checkbox" autocomplete="off">
+                <label for="DisableDHT">Отключить DHT</label>
+            </div>
+            <div class="form-check">
+                <input id="DisableUpload" class="form-check-input" type="checkbox" autocomplete="off">
+                <label for="DisableUpload">Отключить Отдачу</label>
+            </div>
+		<br>
+            <div class="input-group">
+                <div class="input-group-prepend">
+                    <div class="input-group-text">Шифрование</div>
+                </div>
+                <select id="Encryption" class="form-control">
+                    <option value="0">По умолчанию</option>
+                    <option value="1">Отключить</option>
+                    <option value="2">Принудительно</option>
+                </select>
+            </div>
+		<br>
+            <div class="input-group">
+                <div class="input-group-prepend">
+                    <div class="input-group-text">Количество соединений</div>
+                </div>
+                <input id="ConnectionsLimit" class="form-control" type="number" autocomplete="off">
+            </div>
+		<br>
+            <div class="input-group">
+                <div class="input-group-prepend">
+                    <div class="input-group-text">Ограничение загрузки</div>
+                </div>
+                <input id="DownloadRateLimit" class="form-control" type="number" autocomplete="off">
+            </div>
+		<br>
+            <div class="input-group">
+                <div class="input-group-prepend">
+                    <div class="input-group-text">Ограничение отдачи</div>
+                </div>
+                <input id="UploadRateLimit" class="form-control" type="number" autocomplete="off">
+            </div>
+            <small class="form-text text-muted">Ограничение устанавливается в Килобайтах, 0 - не ограничивать</small>
+	 	<br>
+            <div class="input-group">
+                <div class="input-group-prepend">
+                    <div class="input-group-text">Ретрекеры</div>
+                </div>
+                <select id="RetrackersMode" class="form-control">
+         			<option value="0">Оставить как есть</option>
+         			<option value="1">Добавить</option>
+                    <option value="2">Удалить</option>
+                </select>
+            </div>
+        </form>
+        <br>
+        <div class="btn-group d-flex" role="group">
+            <button id="buttonSave" class="btn btn-primary w-100" data-icon="check" onclick="saveSettings()"><i class="far fa-save"></i> Сохранить</button>
+         	<button id="buttonRefresh" class="btn btn-primary w-100" data-icon="refresh" onclick="refreshSettings()"><i class="fas fa-sync-alt"></i> Получить с сервера</button>
+        </div>
+    </div>
+    <footer class="page-footer navbar-dark bg-dark">
+        <span class="navbar-brand d-flex justify-content-center">
+         <a rel="external" style="text-decoration: none;" href="/about">Описание</a>
+         </span>
+    </footer>
+    <script>
+        function saveSettings() {
+            var data = {};
+            data.CacheSize = Number($('#CacheSize').val())*(1024*1024);
+			data.PreloadBufferSize = Number($('#PreloadBufferSize').val())*(1024*1024);
+			
+			data.DisableTCP = $('#DisableTCP').prop('checked');
+			data.DisableUTP = $('#DisableUTP').prop('checked');
+			data.DisableUPNP = $('#DisableUPNP').prop('checked');
+			data.DisableDHT = $('#DisableDHT').prop('checked');
+			data.DisableUpload = $('#DisableUpload').prop('checked');
+			data.Encryption = Number($('#Encryption').val());
+ 
+			data.ConnectionsLimit = Number($('#ConnectionsLimit').val());
+ 
+			data.DownloadRateLimit = Number($('#DownloadRateLimit').val());
+			data.UploadRateLimit = Number($('#UploadRateLimit').val());
+			
+			data.RetrackersMode = Number($('#RetrackersMode').val());
+         
+            $.post("/settings/write", JSON.stringify(data))
+                .done(function(data) {
+         			restartService();
+                    alert(data);
+                })
+                .fail(function(data) {
+                    alert(data.responseJSON.message);
+                });
+        }
+
+        function refreshSettings() {
+            $.post("/settings/read")
+                .done(function(data) {
+         			$('#CacheSize').val(data.CacheSize/(1024*1024));
+					$('#PreloadBufferSize').val(data.PreloadBufferSize/(1024*1024));
+					
+         			$('#DisableTCP').prop('checked', data.DisableTCP);
+					$('#DisableUTP').prop('checked', data.DisableUTP);
+					$('#DisableUPNP').prop('checked', data.DisableUPNP);
+					$('#DisableDHT').prop('checked', data.DisableDHT);
+					$('#DisableUpload').prop('checked', data.DisableUpload);
+					$('#Encryption').val(data.Encryption);
+         
+         			$('#ConnectionsLimit').val(data.ConnectionsLimit);
+         
+					$('#DownloadRateLimit').val(data.DownloadRateLimit);
+					$('#UploadRateLimit').val(data.UploadRateLimit);
+					
+         			$('#RetrackersMode').val(data.RetrackersMode);
+                });
+        };
+
+        $(document).ready(function() {
+            refreshSettings();
+        });
+
+		$(document).on("wheel", "input[type=number]", function (e) {
+			$(this).blur();
+		});
+    </script>
+</body>
+
+</html>
+`
+
+func (t *Template) parseSettingsPage() {
+	parsePage(t, "settingsPage", settingsPage)
+}

src/server/web/templates/Template.go

@@ -0,0 +1,45 @@
+package templates
+
+import (
+	"html/template"
+	"io"
+
+	"github.com/labstack/echo"
+)
+
+type Template struct {
+	templates *template.Template
+}
+
+func InitTemplate(e *echo.Echo) {
+	temp := new(Template)
+
+	temp.parseMainPage()
+	temp.parseSettingsPage()
+	temp.parseAboutPage()
+	temp.parseCachePage()
+
+	e.Renderer = temp
+}
+
+func (t *Template) Render(w io.Writer, name string, data interface{}, c echo.Context) error {
+	return t.templates.ExecuteTemplate(w, name, data)
+}
+
+func parsePage(temp *Template, name, page string) error {
+	s := page
+	var tmpl *template.Template
+	if temp.templates == nil {
+		temp.templates = template.New(name)
+	}
+	if name == temp.templates.Name() {
+		tmpl = temp.templates
+	} else {
+		tmpl = temp.templates.New(name)
+	}
+	_, err := tmpl.Parse(s)
+	if err != nil {
+		return err
+	}
+	return nil
+}

src/server/web/templates/api_js.go

@@ -0,0 +1,133 @@
+package templates
+
+import (
+	"net/http"
+
+	"server/settings"
+	"server/web/helpers"
+
+	"github.com/labstack/echo"
+)
+
+var apijs = `
+function addTorrent(link, save, info, done, fail){
+	var reqJson = JSON.stringify({ Link: link, Info: info, DontSave: !save});
+	$.post('/torrent/add',reqJson)
+	.done(function( data ) {
+		if (done)
+			done(data);
+	})
+	.fail(function( data ) {
+		if (fail)
+			fail(data);
+	});
+}
+
+function getTorrent(hash, done, fail){
+	var reqJson = JSON.stringify({ Hash: hash});
+	$.post('/torrent/get',reqJson)
+	.done(function( data ) {
+		if (done)
+			done(data);
+	})
+	.fail(function( data ) {
+		if (fail)
+			fail(data);
+	});
+}
+
+function removeTorrent(hash, done, fail){
+	var reqJson = JSON.stringify({ Hash: hash});
+	$.post('/torrent/rem',reqJson)
+	.done(function( data ) {
+		if (done)
+			done(data);
+	})
+	.fail(function( data ) {
+		if (fail)
+			fail(data);
+	});
+}
+
+function statTorrent(hash, done, fail){
+	var reqJson = JSON.stringify({ Hash: hash});
+	$.post('/torrent/stat',reqJson)
+	.done(function( data ) {
+		if (done)
+			done(data);
+	})
+	.fail(function( data ) {
+		if (fail)
+			fail(data);
+	});
+}
+
+function cacheTorrent(hash, done, fail){
+	var reqJson = JSON.stringify({ Hash: hash});
+	$.post('/torrent/cache',reqJson)
+	.done(function( data ) {
+		if (done)
+			done(data);
+	})
+	.fail(function( data ) {
+		if (fail)
+			fail(data);
+	});
+}
+
+function listTorrent(done, fail){
+	$.post('/torrent/list')
+	.done(function( data ) {
+		if (done)
+			done(data);
+	})
+	.fail(function( data ) {
+		if (fail)
+			fail(data);
+	});
+}
+
+function restartService(done, fail){
+	$.get('/torrent/restart')
+	.done(function( data ) {
+		if (done)
+			done();
+	})
+	.fail(function( data ) {
+		if (fail)
+			fail(data);
+	});
+}
+
+function preloadTorrent(preloadLink, done, fail){
+	$.get(preloadLink)
+	.done(function( data ) {
+		if (done)
+			done();
+	})
+	.fail(function( data ) {
+		if (fail)
+			fail(data);
+	});
+}
+
+function shutdownServer(fail){
+	$.post('/shutdown')
+	.fail(function( data ) {
+		if (fail)
+			fail(data);
+	});
+}
+
+function humanizeSize(size) {
+	if (typeof size == 'undefined' || size == 0)
+		return "";
+	var i = Math.floor( Math.log(size) / Math.log(1024) );
+	return ( size / Math.pow(1024, i) ).toFixed(2) * 1 + ' ' + ['B', 'kB', 'MB', 'GB', 'TB'][i];
+}
+`
+
+func Api_JS(c echo.Context) error {
+	http.ServeContent(c.Response(), c.Request(), "api.js", settings.StartTime, helpers.NewSeekingBuffer(apijs))
+	return c.NoContent(http.StatusOK)
+}