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LICENSE
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LICENSE
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GNU GENERAL PUBLIC LICENSE
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Version 3, 29 June 2007
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GNU GENERAL PUBLIC LICENSE
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Version 2, June 1991
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|
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Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
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Copyright (C) 1989, 1991 Free Software Foundation, Inc., <http://fsf.org/>
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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Everyone is permitted to copy and distribute verbatim copies
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of this license document, but changing it is not allowed.
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Preamble
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The GNU General Public License is a free, copyleft license for
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software and other kinds of works.
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The licenses for most software and other practical works are designed
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to take away your freedom to share and change the works. By contrast,
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the GNU General Public License is intended to guarantee your freedom to
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share and change all versions of a program--to make sure it remains free
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software for all its users. We, the Free Software Foundation, use the
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GNU General Public License for most of our software; it applies also to
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any other work released this way by its authors. You can apply it to
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The licenses for most software are designed to take away your
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freedom to share and change it. By contrast, the GNU General Public
|
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License is intended to guarantee your freedom to share and change free
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software--to make sure the software is free for all its users. This
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General Public License applies to most of the Free Software
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Foundation's software and to any other program whose authors commit to
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using it. (Some other Free Software Foundation software is covered by
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When we speak of free software, we are referring to freedom, not
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Developers that use the GNU GPL protect your rights with two steps:
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TERMS AND CONDITIONS
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0. Definitions.
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"This License" refers to version 3 of the GNU General Public License.
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All rights granted under this License are granted for the term of
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You may make, run and propagate covered works that you do not
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When you convey a covered work, you waive any legal power to forbid
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A compilation of a covered work with other separate and independent
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You may convey a covered work in object code form under the terms
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you inform other peers where the object code and Corresponding
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Source of the work are being offered to the general public at no
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A separable portion of the object code, whose source code is excluded
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|
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A "User Product" is either (1) a "consumer product", which means any
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||||
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"Installation Information" for a User Product means any methods,
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|
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|
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|
||||
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|
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|
||||
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|
||||
If you convey an object code work under this section in, or with, or
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|
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||||
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|
||||
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||||
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|
||||
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|
||||
The requirement to provide Installation Information does not include a
|
||||
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||||
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|
||||
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|
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|
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|
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|
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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
|
||||
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|
||||
|
||||
7. Additional Terms.
|
||||
|
||||
"Additional permissions" are terms that supplement the terms of this
|
||||
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|
||||
Additional permissions that are applicable to the entire Program shall
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||||
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|
||||
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|
||||
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|
||||
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||||
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||||
|
||||
When you convey a copy of a covered work, you may at your option
|
||||
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|
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||||
Notwithstanding any other provision of this License, for material you
|
||||
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|
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||||
|
||||
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|
||||
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|
||||
|
||||
b) Requiring preservation of specified reasonable legal notices or
|
||||
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||||
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|
||||
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||||
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||||
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|
||||
All other non-permissive additional terms are considered "further
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|
||||
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|
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|
||||
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
|
||||
GNU GENERAL PUBLIC LICENSE
|
||||
TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
|
||||
|
||||
0. This License applies to any program or other work which contains
|
||||
a notice placed by the copyright holder saying it may be distributed
|
||||
under the terms of this General Public License. The "Program", below,
|
||||
refers to any such program or work, and a "work based on the Program"
|
||||
means either the Program or any derivative work under copyright law:
|
||||
that is to say, a work containing the Program or a portion of it,
|
||||
either verbatim or with modifications and/or translated into another
|
||||
language. (Hereinafter, translation is included without limitation in
|
||||
the term "modification".) Each licensee is addressed as "you".
|
||||
|
||||
Activities other than copying, distribution and modification are not
|
||||
covered by this License; they are outside its scope. The act of
|
||||
running the Program is not restricted, and the output from the Program
|
||||
is covered only if its contents constitute a work based on the
|
||||
Program (independent of having been made by running the Program).
|
||||
Whether that is true depends on what the Program does.
|
||||
|
||||
1. You may copy and distribute 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 and disclaimer of warranty; keep intact all the
|
||||
notices that refer to this License and to the absence of any warranty;
|
||||
and give any other recipients of the Program a copy of this License
|
||||
along with the Program.
|
||||
|
||||
You may charge a fee for the physical act of transferring a copy, and
|
||||
you may at your option offer warranty protection in exchange for a fee.
|
||||
|
||||
2. You may modify your copy or copies of the Program or any portion
|
||||
of it, thus forming a work based on the Program, and copy and
|
||||
distribute such modifications or work under the terms of Section 1
|
||||
above, provided that you also meet all of these conditions:
|
||||
|
||||
a) You must cause the modified files to carry prominent notices
|
||||
stating that you changed the files and the date of any change.
|
||||
|
||||
b) You must cause any work that you distribute or publish, that in
|
||||
whole or in part contains or is derived from the Program or any
|
||||
part thereof, to be licensed as a whole at no charge to all third
|
||||
parties under the terms of this License.
|
||||
|
||||
c) If the modified program normally reads commands interactively
|
||||
when run, you must cause it, when started running for such
|
||||
interactive use in the most ordinary way, to print or display an
|
||||
announcement including an appropriate copyright notice and a
|
||||
notice that there is no warranty (or else, saying that you provide
|
||||
a warranty) and that users may redistribute the program under
|
||||
these conditions, and telling the user how to view a copy of this
|
||||
License. (Exception: if the Program itself is interactive but
|
||||
does not normally print such an announcement, your work based on
|
||||
the Program is not required to print an announcement.)
|
||||
|
||||
These requirements apply to the modified work as a whole. If
|
||||
identifiable sections of that work are not derived from the Program,
|
||||
and can be reasonably considered independent and separate works in
|
||||
themselves, then this License, and its terms, do not apply to those
|
||||
sections when you distribute them as separate works. But when you
|
||||
distribute the same sections as part of a whole which is a work based
|
||||
on the Program, the distribution of the whole must be on the terms of
|
||||
this License, whose permissions for other licensees extend to the
|
||||
entire whole, and thus to each and every part regardless of who wrote it.
|
||||
|
||||
Thus, it is not the intent of this section to claim rights or contest
|
||||
your rights to work written entirely by you; rather, the intent is to
|
||||
exercise the right to control the distribution of derivative or
|
||||
collective works based on the Program.
|
||||
|
||||
In addition, mere aggregation of another work not based on the Program
|
||||
with the Program (or with a work based on the Program) on a volume of
|
||||
a storage or distribution medium does not bring the other work under
|
||||
the scope of this License.
|
||||
|
||||
3. You may copy and distribute the Program (or a work based on it,
|
||||
under Section 2) in object code or executable form under the terms of
|
||||
Sections 1 and 2 above provided that you also do one of the following:
|
||||
|
||||
a) Accompany it with the complete corresponding machine-readable
|
||||
source code, which must be distributed under the terms of Sections
|
||||
1 and 2 above on a medium customarily used for software interchange; or,
|
||||
|
||||
b) Accompany it with a written offer, valid for at least three
|
||||
years, to give any third party, for a charge no more than your
|
||||
cost of physically performing source distribution, a complete
|
||||
machine-readable copy of the corresponding source code, to be
|
||||
distributed under the terms of Sections 1 and 2 above on a medium
|
||||
customarily used for software interchange; or,
|
||||
|
||||
c) Accompany it with the information you received as to the offer
|
||||
to distribute corresponding source code. (This alternative is
|
||||
allowed only for noncommercial distribution and only if you
|
||||
received the program in object code or executable form with such
|
||||
an offer, in accord with Subsection b above.)
|
||||
|
||||
The source code for a work means the preferred form of the work for
|
||||
making modifications to it. For an executable work, complete source
|
||||
code means all the source code for all modules it contains, plus any
|
||||
associated interface definition files, plus the scripts used to
|
||||
control compilation and installation of the executable. However, as a
|
||||
special exception, the source code distributed need not include
|
||||
anything that is normally distributed (in either source or binary
|
||||
form) with the major components (compiler, kernel, and so on) of the
|
||||
operating system on which the executable runs, unless that component
|
||||
itself accompanies the executable.
|
||||
|
||||
If distribution of executable or object code is made by offering
|
||||
access to copy from a designated place, then offering equivalent
|
||||
access to copy the source code from the same place counts as
|
||||
distribution of the source code, even though third parties are not
|
||||
compelled to copy the source along with the object code.
|
||||
|
||||
4. You may not copy, modify, sublicense, or distribute the Program
|
||||
except as expressly provided under this License. Any attempt
|
||||
otherwise to copy, modify, sublicense or distribute the Program is
|
||||
void, and will automatically terminate your rights under this License.
|
||||
However, parties who have received copies, or rights, from you under
|
||||
this License will not have their licenses terminated so long as such
|
||||
parties remain in full compliance.
|
||||
|
||||
5. You are not required to accept this License, since you have not
|
||||
signed it. However, nothing else grants you permission to modify or
|
||||
distribute the Program or its derivative works. These actions are
|
||||
prohibited by law if you do not accept this License. Therefore, by
|
||||
modifying or distributing the Program (or any work based on the
|
||||
Program), you indicate your acceptance of this License to do so, and
|
||||
all its terms and conditions for copying, distributing or modifying
|
||||
the Program or works based on it.
|
||||
|
||||
6. Each time you redistribute the Program (or any work based on the
|
||||
Program), the recipient automatically receives a license from the
|
||||
original licensor to copy, distribute or modify the Program subject to
|
||||
these terms and conditions. You may not impose any further
|
||||
restrictions on the recipients' exercise of the rights granted herein.
|
||||
You are not responsible for enforcing compliance by third parties to
|
||||
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
|
||||
7. If, as a consequence of a court judgment or allegation of patent
|
||||
infringement or for any other reason (not limited to patent issues),
|
||||
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.
|
||||
excuse you from the conditions of this License. If you cannot
|
||||
distribute so as to satisfy simultaneously your obligations under this
|
||||
License and any other pertinent obligations, then as a consequence you
|
||||
may not distribute the Program at all. For example, if a patent
|
||||
license would not permit royalty-free redistribution of the Program by
|
||||
all those who receive copies directly or indirectly through you, then
|
||||
the only way you could satisfy both it and this License would be to
|
||||
refrain entirely from distribution of the Program.
|
||||
|
||||
13. Use with the GNU Affero General Public License.
|
||||
If any portion of this section is held invalid or unenforceable under
|
||||
any particular circumstance, the balance of the section is intended to
|
||||
apply and the section as a whole is intended to apply in other
|
||||
circumstances.
|
||||
|
||||
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.
|
||||
It is not the purpose of this section to induce you to infringe any
|
||||
patents or other property right claims or to contest validity of any
|
||||
such claims; this section has the sole purpose of protecting the
|
||||
integrity of the free software distribution system, which is
|
||||
implemented by public license practices. Many people have made
|
||||
generous contributions to the wide range of software distributed
|
||||
through that system in reliance on consistent application of that
|
||||
system; it is up to the author/donor to decide if he or she is willing
|
||||
to distribute software through any other system and a licensee cannot
|
||||
impose that choice.
|
||||
|
||||
14. Revised Versions of this License.
|
||||
This section is intended to make thoroughly clear what is believed to
|
||||
be a consequence of the rest 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
|
||||
8. If the distribution and/or use of the Program is restricted in
|
||||
certain countries either by patents or by copyrighted interfaces, the
|
||||
original copyright holder who places the Program under this License
|
||||
may add an explicit geographical distribution limitation excluding
|
||||
those countries, so that distribution is permitted only in or among
|
||||
countries not thus excluded. In such case, this License incorporates
|
||||
the limitation as if written in the body of this License.
|
||||
|
||||
9. The Free Software Foundation may publish revised and/or new versions
|
||||
of the 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.
|
||||
Each version is given a distinguishing version number. If the Program
|
||||
specifies a version number of this License which applies to it and "any
|
||||
later version", you have the option of following the terms and conditions
|
||||
either of that version or of any later version published by the Free
|
||||
Software Foundation. If the Program does not specify a version number of
|
||||
this 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.
|
||||
10. If you wish to incorporate parts of the Program into other free
|
||||
programs whose distribution conditions are different, write to the author
|
||||
to ask for permission. For software which is copyrighted by the Free
|
||||
Software Foundation, write to the Free Software Foundation; we sometimes
|
||||
make exceptions for this. Our decision will be guided by the two goals
|
||||
of preserving the free status of all derivatives of our free software and
|
||||
of promoting the sharing and reuse of software generally.
|
||||
|
||||
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.
|
||||
NO WARRANTY
|
||||
|
||||
15. Disclaimer of Warranty.
|
||||
11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, 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.
|
||||
|
||||
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.
|
||||
12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
|
||||
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
|
||||
REDISTRIBUTE 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.
|
||||
|
||||
END OF TERMS AND CONDITIONS
|
||||
|
||||
|
@ -628,15 +287,15 @@ 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
|
||||
convey 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}
|
||||
{description}
|
||||
Copyright (C) {year} {fullname}
|
||||
|
||||
This program is free software: you can redistribute it and/or modify
|
||||
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
|
||||
the Free Software Foundation; either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
|
@ -644,31 +303,37 @@ the "copyright" line and a pointer to where the full notice is found.
|
|||
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/>.
|
||||
You should have received a copy of the GNU General Public License along
|
||||
with this program; if not, write to the Free Software Foundation, Inc.,
|
||||
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
||||
|
||||
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:
|
||||
If the program is interactive, make it output a short notice like this
|
||||
when it starts in an interactive mode:
|
||||
|
||||
{project} Copyright (C) {year} {fullname}
|
||||
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
|
||||
Gnomovision version 69, Copyright (C) year name of author
|
||||
Gnomovision 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".
|
||||
parts of the General Public License. Of course, the commands you use may
|
||||
be called something other than `show w' and `show c'; they could even be
|
||||
mouse-clicks or menu items--whatever suits your program.
|
||||
|
||||
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/>.
|
||||
You should also get your employer (if you work as a programmer) or your
|
||||
school, if any, to sign a "copyright disclaimer" for the program, if
|
||||
necessary. Here is a sample; alter the names:
|
||||
|
||||
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>.
|
||||
Yoyodyne, Inc., hereby disclaims all copyright interest in the program
|
||||
`Gnomovision' (which makes passes at compilers) written by James Hacker.
|
||||
|
||||
{signature of Ty Coon}, 1 April 1989
|
||||
Ty Coon, President of Vice
|
||||
|
||||
This 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.
|
||||
|
|
|
@ -3,12 +3,7 @@ Hoarder
|
|||
|
||||
Requirements
|
||||
------------
|
||||
- Python 2
|
||||
- PIP (to install dependencies)
|
||||
Go
|
||||
|
||||
Install
|
||||
-------
|
||||
1. Clone the repository
|
||||
2. Run `pip install -r requirements.txt`
|
||||
3. Make a config file, `hoarder.conf` based off, `hoarder.conf.ex` to suit your needs
|
||||
4. Run `python hoarder.py` with Python 2
|
||||
|
|
29
hoarder.conf.ex
Normal file
29
hoarder.conf.ex
Normal file
|
@ -0,0 +1,29 @@
|
|||
// Configuration for Hoarder
|
||||
// All fields and values are necessary
|
||||
|
||||
// Username for XMLRPC
|
||||
xml_user: "testuser"
|
||||
// Password for XMLRPC
|
||||
xml_pass: "supersecure"
|
||||
// Address to XMLRPC
|
||||
xml_address: "https://mysweetaddress:443/xmlrpc"
|
||||
// Amount of download threads per file
|
||||
threads: "4"
|
||||
// Username for logging into the ssh server
|
||||
ssh_user: "testsshuser"
|
||||
// Password for the logging into the ssh server
|
||||
ssh_pass: "bestpasswordever"
|
||||
// Server address for the ssh server
|
||||
ssh_server: "sshserveraddress"
|
||||
// Port for the ssh server
|
||||
ssh_port: "22"
|
||||
// Location to temporarily download files
|
||||
temp_download_dir: "/home/user/tmp_download/"
|
||||
// Location to move downloaded files from temp_download_dir to
|
||||
local_download_dir: "/home/user/Downloads/"
|
||||
// Locaiton to watch for .torrent files
|
||||
local_torrent_dir: "/home/user/torrent_files/"
|
||||
// Remote location on the SSH server to download torrent data from
|
||||
remote_download_dir: "/home/user/files/"
|
||||
// Remote location on the SSH server to upload .torrent files to
|
||||
remote_torrent_dir: "/home/user/watch/"
|
257
hoarder.go
Normal file
257
hoarder.go
Normal file
|
@ -0,0 +1,257 @@
|
|||
// Watch a torrent directory, poll rtorrent, and download completed torrents over SFTP.
|
||||
package main
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"github.com/adampresley/sigint"
|
||||
"io/ioutil"
|
||||
"log"
|
||||
"os"
|
||||
"path/filepath"
|
||||
"strings"
|
||||
"time"
|
||||
)
|
||||
|
||||
// Load information from a given config file config_path
|
||||
func loadConfig(config_path string) (map[string]string, error) {
|
||||
file, err := os.Open(config_path)
|
||||
if err != nil {
|
||||
log.Println("Failed to open configuration file " + config_path)
|
||||
return nil, err
|
||||
}
|
||||
|
||||
data, err := ioutil.ReadAll(file)
|
||||
if err != nil {
|
||||
log.Println("Failed to read configuration file " + config_path)
|
||||
return nil, err
|
||||
}
|
||||
|
||||
config := make(map[string]string)
|
||||
|
||||
lines := strings.Split(string(data), "\n")
|
||||
for _, line := range lines {
|
||||
line = strings.TrimSpace(line)
|
||||
// Ignore comments
|
||||
if len(line) <= 2 || line[:2] == "//" {
|
||||
continue
|
||||
}
|
||||
|
||||
// Ignore malformed lines
|
||||
sep_position := strings.Index(line, ": \"")
|
||||
if sep_position == -1 {
|
||||
continue
|
||||
}
|
||||
|
||||
config[line[:sep_position]] = line[sep_position + 3:len(line) - 1]
|
||||
}
|
||||
|
||||
return config, nil
|
||||
}
|
||||
|
||||
// Checker routine to see if torrents are completed
|
||||
func checker(config map[string]string, checker_chan <- chan map[string]string, com chan <- error) error {
|
||||
for {
|
||||
torrent_info := <-checker_chan
|
||||
|
||||
log.Println("Started checking " + torrent_info["torrent_path"])
|
||||
|
||||
torrent, err := NewTorrent(config["xml_user"], config["xml_pass"], config["xml_address"], torrent_info["torrent_path"])
|
||||
if err != nil {
|
||||
log.Println("Failed to initialize torrent for " + torrent_info["torrent_path"] + ": " + err.Error())
|
||||
continue
|
||||
}
|
||||
|
||||
syncer, err := NewSync(config["threads"], config["ssh_user"], config["ssh_pass"], config["ssh_server"], config["ssh_port"])
|
||||
if err != nil {
|
||||
log.Println("Failed to create a new sync: " + err.Error())
|
||||
com <- err
|
||||
return err
|
||||
}
|
||||
|
||||
destination_torrent := filepath.Join(config["remote_torrent_dir"], filepath.Base(torrent.path))
|
||||
exists, err := syncer.Exists(destination_torrent)
|
||||
if err != nil {
|
||||
log.Println("Failed to see if " + torrent_info["torrent_path"] + " already exists on the server: " + err.Error())
|
||||
com <- err
|
||||
return err
|
||||
}
|
||||
|
||||
if !exists {
|
||||
err = syncer.SendFiles(map[string]string{torrent.path: destination_torrent})
|
||||
if err != nil {
|
||||
log.Println("Failed to send " + torrent.path + " to the server: " + err.Error())
|
||||
com <- err
|
||||
return err
|
||||
}
|
||||
|
||||
// continue because rtorrent more than likely will not finish the torrent by the next call
|
||||
continue
|
||||
}
|
||||
|
||||
completed, err := torrent.GetTorrentComplete()
|
||||
if err != nil {
|
||||
log.Println("Failed to see if " + torrent.path + " is completed: " + err.Error())
|
||||
com <- err
|
||||
return err
|
||||
}
|
||||
|
||||
name, err := torrent.GetTorrentName()
|
||||
if err != nil {
|
||||
com <- err
|
||||
return err
|
||||
}
|
||||
|
||||
if completed {
|
||||
log.Println(name + " is completed, starting download now")
|
||||
|
||||
remote_download_path := filepath.Join(config["remote_download_dir"], name)
|
||||
exists, err := syncer.Exists(remote_download_path)
|
||||
if err != nil {
|
||||
log.Println("Failed to see if " + remote_download_path + " exists: " + err.Error())
|
||||
com <- err
|
||||
return err
|
||||
}
|
||||
|
||||
// file/dir to downlaod does not exist!
|
||||
if !exists {
|
||||
err = errors.New(remote_download_path + " does not exist on remote server")
|
||||
com <- err
|
||||
return err
|
||||
}
|
||||
|
||||
completed_destination := filepath.Join(config["local_download_dir"], name)
|
||||
|
||||
_, err = os.Stat(completed_destination)
|
||||
if err == nil {
|
||||
err = errors.New(completed_destination + " already exists, not downloading")
|
||||
continue
|
||||
} else if !os.IsNotExist(err) {
|
||||
log.Println("Failed to stat: " + completed_destination + ": " + err.Error())
|
||||
com <- err
|
||||
return err
|
||||
}
|
||||
|
||||
err = syncer.GetPath(remote_download_path, config["temp_download_dir"])
|
||||
if err != nil {
|
||||
log.Println("Failed to download " + remote_download_path + ": " + err.Error())
|
||||
com <- err
|
||||
return err
|
||||
}
|
||||
|
||||
log.Println("Successfully downloaded " + name)
|
||||
|
||||
temp_destination := filepath.Join(config["temp_download_dir"], name)
|
||||
|
||||
err = os.Rename(temp_destination, completed_destination)
|
||||
if err != nil {
|
||||
log.Println("Failed to move " + temp_destination + " to " + completed_destination + ": " + err.Error())
|
||||
com <- err
|
||||
return err
|
||||
}
|
||||
|
||||
err = os.Remove(torrent.path)
|
||||
if err != nil && !os.IsNotExist(err) {
|
||||
log.Println("Failed to remove " + torrent.path + ": " + err.Error())
|
||||
com <- err
|
||||
return err
|
||||
}
|
||||
} else {
|
||||
log.Println(name + " is not completed, waiting for it to finish")
|
||||
}
|
||||
}
|
||||
|
||||
com <- nil
|
||||
return nil
|
||||
}
|
||||
|
||||
// Scanner routine to see if there are new torrent_files
|
||||
func scanner(config map[string]string, checker_chan chan <- map[string]string, com chan <- error) error {
|
||||
watch_dirs := map[string]string{config["local_torrent_dir"]: config["local_download_dir"]}
|
||||
dir_contents, err := ioutil.ReadDir(config["local_torrent_dir"])
|
||||
|
||||
if err != nil {
|
||||
com <- err
|
||||
return err
|
||||
}
|
||||
|
||||
for _, file := range dir_contents {
|
||||
if file.IsDir() {
|
||||
watch_dirs[filepath.Join(config["local_torrent_dir"], file.Name())] = filepath.Join(config["local_download_dir"], file.Name())
|
||||
}
|
||||
}
|
||||
|
||||
for {
|
||||
for watch_dir, download_dir := range watch_dirs {
|
||||
torrent_files, err := ioutil.ReadDir(watch_dir)
|
||||
if err != nil {
|
||||
com <- err
|
||||
return err
|
||||
}
|
||||
|
||||
for _, torrent_file := range torrent_files {
|
||||
if torrent_file.IsDir() {
|
||||
// skip because we don't do more than one level of watching
|
||||
continue
|
||||
}
|
||||
|
||||
checker_chan <- map[string]string{
|
||||
"torrent_path": filepath.Join(watch_dir, torrent_file.Name()),
|
||||
"local_download_dir": download_dir,
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
time.Sleep(time.Second * 30)
|
||||
}
|
||||
|
||||
com <- nil
|
||||
return nil
|
||||
}
|
||||
|
||||
func main() {
|
||||
sigint.ListenForSIGINT(func() {
|
||||
log.Println("Quiting")
|
||||
os.Exit(1)
|
||||
})
|
||||
|
||||
log.Println("Reading configuration file")
|
||||
config, err := loadConfig("hoarder.conf")
|
||||
if err != nil {
|
||||
log.Println(err)
|
||||
os.Exit(1)
|
||||
}
|
||||
|
||||
log.Println("Successfully read configuration file")
|
||||
|
||||
checker_chan := make(chan map[string]string, 50)
|
||||
|
||||
if err != nil {
|
||||
log.Println(err)
|
||||
os.Exit(1)
|
||||
}
|
||||
|
||||
log.Println("Starting the scanner routine")
|
||||
scanner_com := make(chan error)
|
||||
go scanner(config, checker_chan, scanner_com)
|
||||
|
||||
log.Println("Starting the checker routine")
|
||||
checker_com := make(chan error)
|
||||
go checker(config, checker_chan, checker_com)
|
||||
|
||||
for {
|
||||
select {
|
||||
case err := <-scanner_com:
|
||||
if err != nil {
|
||||
log.Println("Scanner failed: " + err.Error())
|
||||
os.Exit(1)
|
||||
}
|
||||
case err := <-checker_com:
|
||||
if err != nil {
|
||||
log.Println("Checker failed: " + err.Error())
|
||||
os.Exit(1)
|
||||
}
|
||||
}
|
||||
|
||||
time.Sleep(time.Second * 5)
|
||||
}
|
||||
}
|
|
@ -1,2 +0,0 @@
|
|||
python-daemon==1.6
|
||||
BitTorrent-bencode==5.0.8.1
|
134
rtorrent.go
Normal file
134
rtorrent.go
Normal file
|
@ -0,0 +1,134 @@
|
|||
// Communicates with rtorrent's XMLRPC interface, and can gather info regarding a .torrent file.
|
||||
package main
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"crypto/sha1"
|
||||
"encoding/hex"
|
||||
"errors"
|
||||
"io"
|
||||
"io/ioutil"
|
||||
"net/http"
|
||||
"os"
|
||||
"regexp"
|
||||
"strings"
|
||||
bencode "github.com/jackpal/bencode-go"
|
||||
)
|
||||
|
||||
// Keeps track of a torrent file's and rtorrent's XMLRPC information.
|
||||
type Torrent struct {
|
||||
path string
|
||||
hash string
|
||||
xml_user string
|
||||
xml_pass string
|
||||
xml_address string
|
||||
}
|
||||
|
||||
// Create a new Torrent instance while computing its hash.
|
||||
func NewTorrent(xml_user string, xml_pass string, xml_address string, file_path string) (*Torrent, error) {
|
||||
hash, err := getTorrentHash(file_path)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
return &Torrent{file_path, hash, xml_user, xml_pass, xml_address}, nil
|
||||
}
|
||||
|
||||
// Compute the torrent hash for a given torrent file path returning an all caps sha1 hash as a string.
|
||||
func getTorrentHash(file_path string) (string, error) {
|
||||
file, err := os.Open(file_path)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
|
||||
defer file.Close()
|
||||
|
||||
data, err := bencode.Decode(file)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
|
||||
decoded, ok := data.(map[string]interface{})
|
||||
if !ok {
|
||||
return "", errors.New("unable to convert data to map")
|
||||
}
|
||||
|
||||
var encoded bytes.Buffer
|
||||
bencode.Marshal(&encoded, decoded["info"])
|
||||
|
||||
encoded_string := encoded.String()
|
||||
|
||||
hash := sha1.New()
|
||||
io.WriteString(hash, encoded_string)
|
||||
|
||||
hash_string := strings.ToUpper(hex.EncodeToString(hash.Sum(nil)))
|
||||
|
||||
return hash_string, nil
|
||||
}
|
||||
|
||||
// Send a command and its argument to the rtorrent XMLRPC and get the response.
|
||||
func (t Torrent) xmlRpcSend (command string, arg string) (string, error) {
|
||||
// This is hacky XML to send to the server
|
||||
buf := []byte("<?xml version='1.0'?>\n" +
|
||||
"<methodCall>\n" +
|
||||
"<methodName>" + command + "</methodName>\n" +
|
||||
"<params>\n" +
|
||||
"<param>\n" +
|
||||
"<value><string>" + arg + "</string></value>\n" +
|
||||
"</param>\n" +
|
||||
"</params>\n" +
|
||||
"</methodCall>\n")
|
||||
|
||||
buffer := bytes.NewBuffer(buf)
|
||||
|
||||
request, err := http.NewRequest("POST", t.xml_address, buffer)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
|
||||
// Set the basic HTTP auth if we have a user or password
|
||||
if t.xml_user != "" || t.xml_pass != "" {
|
||||
request.SetBasicAuth(t.xml_user, t.xml_pass)
|
||||
}
|
||||
|
||||
client := &http.Client{}
|
||||
resp, err := client.Do(request)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
|
||||
defer resp.Body.Close()
|
||||
|
||||
body, err := ioutil.ReadAll(resp.Body)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
|
||||
re, err := regexp.Compile("<value><.*>(.*)</.*></value>")
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
|
||||
values := re.FindAllStringSubmatch(string(body), -1)
|
||||
|
||||
if len(values) != 1 {
|
||||
return "", nil
|
||||
}
|
||||
|
||||
return values[0][1], nil
|
||||
}
|
||||
|
||||
// Get the torrent's name from rtorrent.
|
||||
func (t Torrent) GetTorrentName() (string, error) {
|
||||
return t.xmlRpcSend("d.get_name", t.hash)
|
||||
}
|
||||
|
||||
// Get the completion status of the torrent from rtorrent.
|
||||
func (t Torrent) GetTorrentComplete() (bool, error) {
|
||||
complete, err := t.xmlRpcSend("d.get_complete", t.hash)
|
||||
if err != nil {
|
||||
return false, err
|
||||
}
|
||||
|
||||
return complete == "1", nil
|
||||
}
|
|
@ -1,22 +0,0 @@
|
|||
{
|
||||
"torrent_files": "Path to torrent files that are uploaded",
|
||||
"local_download_dir": "Path to download torrent data to",
|
||||
|
||||
"xmlrpc": {
|
||||
"transport": "https",
|
||||
"user": "username for xmlrpc goes here",
|
||||
"password": "password for xmlrpc goes here",
|
||||
"host": "host for xmlrpc goes here",
|
||||
"port": "443",
|
||||
"path": "path for xmlrpc goes here"
|
||||
},
|
||||
|
||||
"torrent_download": {
|
||||
"download_dir": "location that the remote server downloads torrent data to",
|
||||
"watch_dir": "location that the remote server watches for new torrent files",
|
||||
"user": "SSH username for remote server",
|
||||
"host": "SSH host for remote server",
|
||||
"port": "22",
|
||||
"children": "2"
|
||||
}
|
||||
}
|
496
src/hoarder.py
496
src/hoarder.py
|
@ -1,496 +0,0 @@
|
|||
import bencode
|
||||
import hashlib
|
||||
import json
|
||||
import logging
|
||||
import os
|
||||
import pipes
|
||||
import subprocess
|
||||
import time
|
||||
import xmlrpclib
|
||||
|
||||
"""
|
||||
Interfaces with an rtorrent XML RPC server
|
||||
"""
|
||||
class rtorrentRPC:
|
||||
"""
|
||||
Constructor
|
||||
|
||||
protocol string used to define the transport protocol for XMLRPC (http, https, etc)
|
||||
user string used to define the username for XMLRPC
|
||||
password string used to define the password for XMLRPC
|
||||
host string used to define the host for XMLRPC
|
||||
port string/int used to define the port to use for XMLRPC
|
||||
path string used to define the path for XMLRPC
|
||||
"""
|
||||
def __init__(self, protocol, user, password, host, port, path):
|
||||
# generates the string used for connection
|
||||
self.connectString = "%s://%s:%s@%s:%s/%s" % (str(protocol), str(user), str(password), str(host), str(port), str(path))
|
||||
|
||||
# try to connect to the XMLRPC server
|
||||
if not self.connect():
|
||||
logging.warning('Indefinitely retrying to reconnect to "%s"' % self.connectString)
|
||||
while not self.reconnect():
|
||||
pass
|
||||
|
||||
"""
|
||||
Determines if we are connected to the XMLRPC server
|
||||
|
||||
return bool true if we are connected, false if not
|
||||
"""
|
||||
def connected(self):
|
||||
try:
|
||||
self.connection.system.client_version()
|
||||
return True
|
||||
except:
|
||||
return False
|
||||
|
||||
"""
|
||||
Try to conect to a server with multiple attempts
|
||||
|
||||
attempts int the amount of times to attempt to connect to the XMLRPC server
|
||||
wait int the amount of seconds to wait between connection attempts
|
||||
|
||||
return bool true if we connected, false if not
|
||||
"""
|
||||
def reconnect(self, attempts=5, wait=5):
|
||||
i = 0
|
||||
while i < attempts:
|
||||
logging.warning('Attempting to connect to "%s" attempt %d/%d' % (self.connectString, i + 1, attempts))
|
||||
if self.connect():
|
||||
return True
|
||||
|
||||
time.sleep(wait)
|
||||
i += 1
|
||||
|
||||
return False
|
||||
|
||||
"""
|
||||
Connect to the XMLRPC server
|
||||
|
||||
return bool true if we connected, false if not
|
||||
"""
|
||||
def connect(self):
|
||||
try:
|
||||
self.connection = xmlrpclib.ServerProxy(self.connectString)
|
||||
logging.info('Successfully connected to "%s"' % self.connectString)
|
||||
|
||||
return self.connected()
|
||||
except:
|
||||
logging.warning('Failed to connect to "%s"' % self.connectString)
|
||||
return False
|
||||
|
||||
"""
|
||||
Determines if a given torrent hash is completed or not
|
||||
|
||||
hash string torrent hash to check on
|
||||
return bool true if it is complete, false if not, null if we have a connection issue
|
||||
"""
|
||||
def torrentComplete(self, hash):
|
||||
try:
|
||||
return self.connection.d.get_complete(hash) == 1
|
||||
except xmlrpclib.Fault:
|
||||
logging.warning('"%s" hash does not exist' % hash)
|
||||
return False
|
||||
except:
|
||||
logging.warning('Lost connection to "%s"' % self.connectString)
|
||||
# attempt to reconnect and run the query again
|
||||
if self.reconnect():
|
||||
return self.torrentComplete(hash)
|
||||
return None
|
||||
|
||||
"""
|
||||
Gets the torrent name for the given torrent hash
|
||||
|
||||
hash string torrent hash to check on
|
||||
return string the name of the torrent hash, false if it does not exist, null if we have a connection issue
|
||||
"""
|
||||
def torrentName(self, hash):
|
||||
try:
|
||||
return self.connection.d.get_name(hash)
|
||||
except xmlrpclib.Fault:
|
||||
logging.warning('"%s" hash does not exist' % hash)
|
||||
return False
|
||||
except:
|
||||
logging.warning('Lost connection to "%s"' % self.connectString)
|
||||
# attempt to reconnect and run the query again
|
||||
if self.reconnect():
|
||||
return self.torrentName(hash)
|
||||
return None
|
||||
|
||||
"""
|
||||
Scans a directory for torrents and checks their completion status on the XMLRPC server
|
||||
"""
|
||||
class fileScan(rtorrentRPC):
|
||||
"""
|
||||
Constructor
|
||||
|
||||
baseDir the location of the torrent files
|
||||
protocol string used to define the transport protocol for XMLRPC (http, https, etc)
|
||||
user string used to define the username for XMLRPC
|
||||
password string used to define the password for XMLRPC
|
||||
host string used to define the host for XMLRPC
|
||||
port string/int used to define the port to use for XMLRPC
|
||||
path string used to define the path for XMLRPC
|
||||
"""
|
||||
def __init__(self, baseDir, protocol, user, password, host, port, path):
|
||||
# call our parent's constructor
|
||||
rtorrentRPC.__init__(self, protocol, user, password, host, port, path)
|
||||
|
||||
# list of completed torrents [{'file': path, 'name': torrent_name}]
|
||||
self.completed = []
|
||||
|
||||
# make sure we have a trailing slash
|
||||
self.baseDir = baseDir
|
||||
if self.baseDir[-1] != '/':
|
||||
self.baseDir += '/'
|
||||
|
||||
"""
|
||||
Gets a list of completed torrents from the self.baseDir path.
|
||||
|
||||
return True on success, None on connection issues
|
||||
"""
|
||||
def updateCompleted(self):
|
||||
try:
|
||||
logging.info('Scanning for torrent files')
|
||||
for root, dirs, files in os.walk(self.baseDir, followlinks=True):
|
||||
for file in files:
|
||||
path = root + file
|
||||
hash = self.hashInfo(path)
|
||||
|
||||
if not hash:
|
||||
logging.info('Skipping "%s", not a torrent file' % path)
|
||||
else:
|
||||
logging.debug('Hash for "%s" is "%s"' % (path, hash))
|
||||
|
||||
skip = False
|
||||
for queued in self.completed:
|
||||
if queued['file'] == path:
|
||||
skip = True
|
||||
break
|
||||
|
||||
if skip:
|
||||
logging.debug('"%s" is already queued' % path)
|
||||
continue
|
||||
|
||||
isCompleted = self.torrentComplete(hash)
|
||||
if isCompleted == None:
|
||||
return None
|
||||
|
||||
name = self.torrentName(hash)
|
||||
if name == None:
|
||||
return None
|
||||
|
||||
if isCompleted:
|
||||
if name != False:
|
||||
logging.info('"%s" is completed, adding to download list' % name)
|
||||
self.completed.append({'file': path, 'name': name})
|
||||
else:
|
||||
logging.info('Skipping "%s", not finished downloading' % name)
|
||||
except:
|
||||
return None
|
||||
|
||||
return True
|
||||
|
||||
"""
|
||||
Get the torrent hash for a given filePath
|
||||
|
||||
filePath string the path to a torrent file to hash
|
||||
return string the torrent hash of the file, false if there is an error parsing
|
||||
"""
|
||||
@staticmethod
|
||||
def hashInfo(filePath):
|
||||
try:
|
||||
return hashlib.sha1(bencode.bencode(bencode.bdecode(open(filePath, 'rb').read())['info'])).hexdigest().upper()
|
||||
except:
|
||||
return False
|
||||
|
||||
"""
|
||||
Used for pushing torrent files to the server and pulling the actual data
|
||||
"""
|
||||
class puller:
|
||||
"""
|
||||
Constructor
|
||||
|
||||
files list output from fileScan.completed
|
||||
username string the username used to connect to the remote server
|
||||
host string the location for the remote server
|
||||
port string/int the port used to connect to the remote server
|
||||
baseDir string the path the data is stored at remotely
|
||||
localDir string the path to download the data to
|
||||
torrentDir string the path where the local torrent files are located
|
||||
watchDir string the path where the remote server stores torrent files
|
||||
children int the amount of children to use for downloading
|
||||
"""
|
||||
def __init__(self, files, username, host, port, baseDir, localDir, torrentDir, watchDir, children=2):
|
||||
# the last time we pushed torrent files to the server
|
||||
self.lastPush = -1
|
||||
self.files = files
|
||||
self.processes = []
|
||||
self.children = children
|
||||
self.username = str(username)
|
||||
self.host = str(host)
|
||||
self.port = str(port)
|
||||
self.baseDir = str(baseDir)
|
||||
# make sure all directories have a trailing slash
|
||||
if self.baseDir[-1] != '/':
|
||||
self.baseDir += '/'
|
||||
self.localDir = str(localDir)
|
||||
if self.localDir[-1] != '/':
|
||||
self.localDir += '/'
|
||||
self.torrentDir = str(torrentDir)
|
||||
if self.torrentDir[-1] != '/':
|
||||
self.torrentDir += '/'
|
||||
self.watchDir = watchDir
|
||||
if self.watchDir[-1] != '/':
|
||||
self.watchDir += '/'
|
||||
|
||||
"""
|
||||
Get the amount of torrents still in the queue for downloading
|
||||
|
||||
return int the number of torrents waiting to be downloaded
|
||||
"""
|
||||
def queuedItems(self):
|
||||
return len(self.files)
|
||||
|
||||
"""
|
||||
Get the number of torrents being downloaded right now
|
||||
|
||||
return int the number of torrents being downloaded now
|
||||
"""
|
||||
def runningItems(self):
|
||||
return len(self.processes)
|
||||
|
||||
"""
|
||||
Gets the amount of children that are free to download
|
||||
|
||||
return int the number of children available to download
|
||||
"""
|
||||
def freeChildren(self):
|
||||
return self.children - self.runningItems()
|
||||
|
||||
"""
|
||||
Spawns download children if allowed
|
||||
|
||||
return bool true on download start, false on failure
|
||||
"""
|
||||
def pull(self):
|
||||
if self.queuedItems() == 0 or self.freeChildren() <= 0:
|
||||
return False
|
||||
|
||||
file = self.files.pop(0)
|
||||
|
||||
# make sure this file isn't already being processed
|
||||
for process in self.processes:
|
||||
if process['info'] == file:
|
||||
return False
|
||||
|
||||
command = 'rsync --inplace --partial --port=%s -rq %s@%s:%s %s' % (self.port, self.username, self.host, pipes.quote(pipes.quote(self.baseDir + file['name'])), pipes.quote(self.localDir + '.temp/'))
|
||||
logging.info('Starting download for "%s"' % file['name'])
|
||||
logging.debug('command: "%s"' % command)
|
||||
|
||||
try:
|
||||
process = subprocess.Popen(command, shell=True)
|
||||
self.processes.append({'process': process, 'info': file})
|
||||
return True
|
||||
except Exception as e:
|
||||
logging.error('Failed to start download for "%s" with error "%s"' % (file['name'], e))
|
||||
return False
|
||||
|
||||
"""
|
||||
Pushes torrent files to the remote server
|
||||
|
||||
return bool true on success, false on failure, none on error
|
||||
"""
|
||||
def push(self):
|
||||
now = time.time()
|
||||
# only push in 5 minute intervals
|
||||
if now - self.lastPush < 300:
|
||||
return True
|
||||
else:
|
||||
self.lastPush = now
|
||||
|
||||
command = 'rsync --inplace --partial --port=%s -hrq %s %s@%s:%s' % (self.port, pipes.quote(self.torrentDir), self.username, self.host, pipes.quote(pipes.quote(self.watchDir)))
|
||||
logging.info('Syncing torrent files')
|
||||
logging.debug('command: "%s"' % command)
|
||||
|
||||
try:
|
||||
if subprocess.call(command, shell=True) == 0:
|
||||
logging.info('Successfully synced torrent files')
|
||||
return True
|
||||
else:
|
||||
logging.warning('Failed to sync torrent files')
|
||||
return False
|
||||
except Exception as e:
|
||||
logging.error('Failed to sync torrents with error "%s"' % e)
|
||||
return None
|
||||
|
||||
"""
|
||||
Cleanup processes that have finished
|
||||
|
||||
return bool true if all children are finished, false otherwise
|
||||
"""
|
||||
def clean(self):
|
||||
i = 0
|
||||
length = len(self.processes)
|
||||
|
||||
while i < length:
|
||||
if self.processes[i]['process'].poll() != None:
|
||||
if self.processes[i]['process'].returncode == 0:
|
||||
logging.info('Successfully downloaded "%s"' % self.processes[i]['info']['name'])
|
||||
os.renames(self.localDir + '.temp/' + self.processes[i]['info']['name'], self.localDir + self.processes[i]['info']['name'])
|
||||
os.unlink(self.processes[i]['info']['file'])
|
||||
else:
|
||||
logging.warning('Failed to download "%s"' % self.processes[i]['info']['name'])
|
||||
self.processes.pop(i)
|
||||
i -= 1
|
||||
length -= 1
|
||||
i += 1
|
||||
|
||||
return length == 0
|
||||
|
||||
"""
|
||||
Starts up fileScan and puller instances through given config file
|
||||
"""
|
||||
class loader:
|
||||
"""
|
||||
Constructor
|
||||
|
||||
configFile string the location for the config file
|
||||
"""
|
||||
def __init__(self, configFile):
|
||||
self.configFile = configFile
|
||||
self.data = None
|
||||
|
||||
"""
|
||||
Loads the configuration file into memory and parses it as JSON
|
||||
|
||||
return bool true on success, false otherwise
|
||||
"""
|
||||
def loadFile(self):
|
||||
try:
|
||||
data = open(self.configFile, 'rb').read()
|
||||
self.data = json.loads(data)
|
||||
|
||||
if 'torrent_files' not in self.data:
|
||||
logging.error('Missing torrent_files setting')
|
||||
return False
|
||||
if 'xmlrpc' not in self.data:
|
||||
logging.error('Missing xmlrpc setting')
|
||||
return False
|
||||
if 'torrent_download' not in self.data:
|
||||
logging.error('Missing torrent_download setting')
|
||||
return False
|
||||
if 'local_download_dir' not in self.data:
|
||||
logging.error('Missing local_download_dir setting')
|
||||
return False
|
||||
|
||||
if 'transport' not in self.data['xmlrpc']:
|
||||
logging.error('Missing transport setting in xmlrpc')
|
||||
return False
|
||||
if 'user' not in self.data['xmlrpc']:
|
||||
logging.error('Missing user setting in xmlrpc')
|
||||
return False
|
||||
if 'password' not in self.data['xmlrpc']:
|
||||
logging.error('Missing password setting in xmlrpc')
|
||||
return False
|
||||
if 'host' not in self.data['xmlrpc']:
|
||||
logging.error('Missing host setting in xmlrpc')
|
||||
return False
|
||||
if 'port' not in self.data['xmlrpc']:
|
||||
logging.error('Missing port setting in xmlrpc')
|
||||
return False
|
||||
if 'path' not in self.data['xmlrpc']:
|
||||
logging.error('Missing path setting in xmlrpc')
|
||||
return False
|
||||
|
||||
if 'user' not in self.data['torrent_download']:
|
||||
logging.error('Missing user setting in torrent_download')
|
||||
return False
|
||||
if 'host' not in self.data['torrent_download']:
|
||||
logging.error('Missing host setting in torrent_download')
|
||||
return False
|
||||
if 'port' not in self.data['torrent_download']:
|
||||
logging.error('Missing port setting in torrent_download')
|
||||
return False
|
||||
if 'download_dir' not in self.data['torrent_download']:
|
||||
logging.error('Missing download_dir setting in torrent_download')
|
||||
return False
|
||||
if 'watch_dir' not in self.data['torrent_download']:
|
||||
logging.error('Missing watch_dir setting in torrent_download')
|
||||
return False
|
||||
if 'children' in self.data['torrent_download']:
|
||||
self.data['torrent_download']['children'] = int(self.data['torrent_download']['children'])
|
||||
else:
|
||||
logging.warning('Missing children setting in torrent_download, setting default to 2')
|
||||
self.data['torrent_download']['children'] = 2
|
||||
|
||||
logging.info('Successfully loaded config from "%s"' % self.configFile)
|
||||
return True
|
||||
except:
|
||||
logging.error('Failed to load configuration from "%s"' % self.configFile)
|
||||
return False
|
||||
|
||||
"""
|
||||
Initialize a fileScanner and puller class based off the configuration file
|
||||
|
||||
return {'puller': puller(), 'scanner': fileScanner()}, False on error
|
||||
"""
|
||||
def load(self):
|
||||
if self.data == None and not self.loadFile():
|
||||
return False
|
||||
|
||||
try:
|
||||
fileScanner = fileScan(baseDir=self.data['torrent_files'], protocol=self.data['xmlrpc']['transport'], user=self.data['xmlrpc']['user'], password=self.data['xmlrpc']['password'], host=self.data['xmlrpc']['host'], port=self.data['xmlrpc']['port'], path=self.data['xmlrpc']['path'])
|
||||
|
||||
if fileScanner.updateCompleted() == None:
|
||||
logging.warning('Nothing to parse due to connection issues')
|
||||
return False
|
||||
else:
|
||||
pull = puller(files=fileScanner.completed, username=self.data['torrent_download']['user'], host=self.data['torrent_download']['host'], port=self.data['torrent_download']['port'], baseDir=self.data['torrent_download']['download_dir'], localDir=self.data['local_download_dir'], torrentDir=self.data['torrent_files'], watchDir=self.data['torrent_download']['watch_dir'], children=self.data['torrent_download']['children'])
|
||||
|
||||
return {'puller': pull, 'scanner': fileScanner}
|
||||
except:
|
||||
return False
|
||||
|
||||
if __name__ == '__main__':
|
||||
import argparse
|
||||
|
||||
logging.basicConfig(level=logging.INFO, format='[%(asctime)s] %(message)s')
|
||||
logger = logging.getLogger(__name__)
|
||||
|
||||
parser = argparse.ArgumentParser(description='Download torrents that are completed')
|
||||
parser.add_argument( '-c', '--config', dest='config_file', metavar='CONFIG_FILE', nargs=1, help='Location of config file formatted in JSON. Default: ./hoarder.conf')
|
||||
|
||||
args = parser.parse_args()
|
||||
|
||||
if args.config_file == None:
|
||||
config_file = './hoarder.conf'
|
||||
else:
|
||||
config_file = args.config_file
|
||||
|
||||
if not os.path.isfile(config_file):
|
||||
logging.error('Cannot find config file "%s"' % config_file)
|
||||
exit(1)
|
||||
|
||||
load = loader(config_file)
|
||||
while True:
|
||||
parsing = load.load()
|
||||
lastParse = time.time()
|
||||
|
||||
if not parsing:
|
||||
logging.error('Failed to start the parse, fetch and upload process')
|
||||
exit(1)
|
||||
|
||||
while True:
|
||||
parsing['puller'].push()
|
||||
parsing['puller'].pull()
|
||||
if parsing['puller'].clean():
|
||||
break
|
||||
|
||||
if parsing['puller'].queuedItems() == 0 and parsing['puller'].freeChildren() > 0 and time.time() - lastParse > 300:
|
||||
parsing['scanner'].updateCompleted()
|
||||
lastParse = time.time()
|
||||
|
||||
time.sleep(1)
|
||||
|
||||
time.sleep(300)
|
395
sync.go
Normal file
395
sync.go
Normal file
|
@ -0,0 +1,395 @@
|
|||
// Send and receive files via SFTP using multiple download streams concurrently (for downloads).
|
||||
package main
|
||||
|
||||
import (
|
||||
"errors"
|
||||
"github.com/pkg/sftp"
|
||||
"golang.org/x/crypto/ssh"
|
||||
"io"
|
||||
"log"
|
||||
"os"
|
||||
"path/filepath"
|
||||
"strconv"
|
||||
)
|
||||
|
||||
// Keeps track of the connection information.
|
||||
type Sync struct {
|
||||
sshClient *ssh.Client
|
||||
sftpClients []*sftp.Client
|
||||
sftpClientCount int
|
||||
}
|
||||
|
||||
// Create a new Sync object, connect to the SSH server, and create sftp clients
|
||||
func NewSync(threads string, user string, pass string, server string, port string) (*Sync, error) {
|
||||
// convert the threads input to an int
|
||||
client_count, err := strconv.Atoi(threads)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
if client_count < 1 {
|
||||
return nil, errors.New("Must have a thread count >= 1")
|
||||
}
|
||||
|
||||
ssh_client, err := newSSHClient(user, pass, server, port)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
// initialize a total of client_count sftp clients
|
||||
sftp_clients := make([]*sftp.Client, client_count)
|
||||
for i := 0; i < client_count; i++ {
|
||||
sftp_client, err := sftp.NewClient(ssh_client)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
sftp_clients[i] = sftp_client
|
||||
}
|
||||
|
||||
return &Sync{ssh_client, sftp_clients, client_count}, nil
|
||||
}
|
||||
|
||||
// Create a new SSH client instance and confirm that we can make sessions
|
||||
func newSSHClient(user string, pass string, server string, port string) (*ssh.Client, error) {
|
||||
ssh_config := &ssh.ClientConfig{
|
||||
User: user,
|
||||
Auth: []ssh.AuthMethod{
|
||||
ssh.Password(pass),
|
||||
},
|
||||
}
|
||||
|
||||
ssh_client, err := ssh.Dial("tcp", server + ":" + port, ssh_config)
|
||||
|
||||
if err != nil {
|
||||
return ssh_client, err
|
||||
}
|
||||
|
||||
session, err := ssh_client.NewSession()
|
||||
if err != nil {
|
||||
return ssh_client, err
|
||||
}
|
||||
|
||||
defer session.Close()
|
||||
|
||||
return ssh_client, err
|
||||
}
|
||||
|
||||
// Send a list of files in the format of {"source_path": "destination"} to the SSH server.
|
||||
// This does not handle directories.
|
||||
func (s Sync) SendFiles(files map[string]string) error {
|
||||
return SendFiles(s.sftpClients[0], files)
|
||||
}
|
||||
|
||||
// Send a list of files in the format of {"source_path": "destination"} to the SSH server.
|
||||
// This does not handle directories.
|
||||
func SendFiles(sftp_client *sftp.Client, files map[string]string) error {
|
||||
for source_file, destination_file := range files {
|
||||
// 512KB buffer for reading/sending data
|
||||
data := make([]byte, 524288)
|
||||
|
||||
// Open file that we will be sending
|
||||
source_data, err := os.Open(source_file)
|
||||
if err != nil {
|
||||
log.Println("SendFiles: Failed to open source file " + source_file)
|
||||
return err
|
||||
}
|
||||
|
||||
// Get the info of the file that we will be sending
|
||||
source_stat, err := source_data.Stat()
|
||||
if err != nil {
|
||||
log.Println("SendFiles: Failed to stat source file " + source_file)
|
||||
return err
|
||||
}
|
||||
|
||||
// Extract the size of the file that we will be sending
|
||||
source_size := source_stat.Size()
|
||||
// Create the destination file for the source file we're sending
|
||||
new_file, err := sftp_client.Create(destination_file)
|
||||
if err != nil {
|
||||
log.Println("SendFiles: Failed to create destination file " + destination_file)
|
||||
return err
|
||||
}
|
||||
|
||||
// Track our position in reading/writing the file
|
||||
var current_position int64 = 0
|
||||
for current_position < source_size {
|
||||
// If the next iteration will be greater than the file size, reduce to the data size
|
||||
if current_position + int64(len(data)) > source_size {
|
||||
data = make([]byte, source_size - current_position)
|
||||
}
|
||||
|
||||
// Read data from the source file
|
||||
read, err := source_data.Read(data)
|
||||
if err != nil {
|
||||
// If it's the end of the file and we didn't read anything, break
|
||||
if err == io.EOF {
|
||||
if read == 0 {
|
||||
break
|
||||
}
|
||||
} else {
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
// Write the data from the source file to the destination file
|
||||
_, err = new_file.Write(data)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// Update the current position in the file
|
||||
current_position += int64(read)
|
||||
}
|
||||
|
||||
// close the source file
|
||||
err = source_data.Close()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
// close the destination file
|
||||
err = new_file.Close()
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// Get a file from the source_file path to be stored in destination_file path
|
||||
func (s Sync) GetFile(source_file string, destination_file string) error {
|
||||
// Store channels for all the concurrent download parts
|
||||
channels := make([]chan error, s.sftpClientCount)
|
||||
|
||||
// Make channels for all the concurrent downloads
|
||||
for i := 0; i < s.sftpClientCount; i++ {
|
||||
channels[i] = make(chan error)
|
||||
}
|
||||
|
||||
// Start the concurrent downloads
|
||||
for i := 0; i < s.sftpClientCount; i++ {
|
||||
go GetFile(s.sftpClients[i], source_file, destination_file, i + 1, s.sftpClientCount, channels[i])
|
||||
}
|
||||
|
||||
// Block until all downloads are completed or one errors
|
||||
for _, channel := range channels {
|
||||
err := <- channel
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// Get a file from the source_file path to be stored in destination_file path.
|
||||
// worker_number and work_total are not zero indexed, but 1 indexed
|
||||
func GetFile(sftp_client *sftp.Client, source_file string, destination_file string, worker_number int, worker_total int, com chan <- error) error {
|
||||
// Open source_data for reading
|
||||
source_data, err := sftp_client.OpenFile(source_file, os.O_RDONLY)
|
||||
if err != nil {
|
||||
com <- err
|
||||
return err
|
||||
}
|
||||
|
||||
// Get info for source_data
|
||||
stat, err := source_data.Stat()
|
||||
if err != nil {
|
||||
com <- err
|
||||
return err
|
||||
}
|
||||
|
||||
// Extract the size of source_data
|
||||
stat_size := stat.Size()
|
||||
// Calculate which byte to start reading data from
|
||||
var start int64
|
||||
if worker_number == 1 {
|
||||
start = 0
|
||||
} else {
|
||||
start = (stat_size * int64(worker_number - 1)) / int64(worker_total)
|
||||
}
|
||||
|
||||
// Calculate which byte to stop reading data from
|
||||
var stop int64
|
||||
if worker_number == worker_total {
|
||||
stop = stat_size
|
||||
} else {
|
||||
stop = (stat_size * int64(worker_number)) / int64(worker_total)
|
||||
}
|
||||
|
||||
// Create the new file for writing
|
||||
new_file, err := os.OpenFile(destination_file, os.O_WRONLY | os.O_CREATE, 0777)
|
||||
if err != nil {
|
||||
com <- err
|
||||
return err
|
||||
}
|
||||
|
||||
// Seek to the computed start point
|
||||
offset, err := source_data.Seek(start, 0)
|
||||
if err != nil {
|
||||
com <- err
|
||||
return err
|
||||
}
|
||||
|
||||
// Seeking messed up real bad
|
||||
if offset != start {
|
||||
err = errors.New("Returned incorrect offset for source " + source_file)
|
||||
com <- err
|
||||
return err
|
||||
}
|
||||
|
||||
// Seek to the computed start point
|
||||
offset, err = new_file.Seek(start, 0)
|
||||
if err != nil {
|
||||
com <- err
|
||||
return err
|
||||
}
|
||||
|
||||
// Seeking messed up real bad
|
||||
if offset != start {
|
||||
err = errors.New("Return incorrect offset for destination " + destination_file)
|
||||
com <- err
|
||||
return err
|
||||
}
|
||||
|
||||
// 512KB chunks
|
||||
var data_size int64 = 524288
|
||||
// Change the size if the chunk is larger than the file
|
||||
chunk_difference := stop - start
|
||||
if chunk_difference < data_size {
|
||||
data_size = chunk_difference
|
||||
}
|
||||
|
||||
// Initialize the buffer for reading/writing
|
||||
data := make([]byte, data_size)
|
||||
|
||||
for current_size := start; current_size < stop; current_size += data_size {
|
||||
// Adjust the size of the buffer if the next iteration will be greater than what has yet to be read
|
||||
if current_size + data_size > stop {
|
||||
data_size = stop - current_size
|
||||
data = make([]byte, data_size)
|
||||
}
|
||||
|
||||
// Read the chunk
|
||||
read, err := source_data.Read(data)
|
||||
if err != nil {
|
||||
// Exit the loop if we're at the end of the file and no data was read
|
||||
if err == io.EOF {
|
||||
if read == 0 {
|
||||
break
|
||||
}
|
||||
} else {
|
||||
com <- err
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
// Write the chunk
|
||||
_, err = new_file.Write(data)
|
||||
if err != nil {
|
||||
com <- err
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
// Close out the files
|
||||
err = source_data.Close()
|
||||
if err != nil {
|
||||
com <- err
|
||||
return err
|
||||
}
|
||||
|
||||
err = new_file.Close()
|
||||
if err != nil {
|
||||
com <- err
|
||||
return err
|
||||
}
|
||||
|
||||
com <- nil
|
||||
return nil
|
||||
}
|
||||
|
||||
// Get a given directory or file defined by source_path and save it to destination_path
|
||||
func (s Sync) GetPath(source_path string, destination_path string) error {
|
||||
// Get all the dirs and files underneath source_path
|
||||
dirs, files, err := s.getChildren(source_path)
|
||||
|
||||
// Remove the trailing slash if it exists
|
||||
if source_path[len(source_path) - 1] == '/' {
|
||||
source_path = source_path[:len(source_path) - 1]
|
||||
}
|
||||
|
||||
// Get the parent path of source_path
|
||||
source_base := filepath.Dir(source_path)
|
||||
source_base_len := len(source_base)
|
||||
|
||||
// Make all the directories in destination_path
|
||||
for _, dir := range dirs {
|
||||
dir = filepath.Join(destination_path, filepath.FromSlash(dir[source_base_len:]))
|
||||
err = os.MkdirAll(dir, 0777)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
// Get all the files and place them in destination_path
|
||||
for _, file := range files {
|
||||
new_file := filepath.Join(destination_path, filepath.FromSlash(file[source_base_len:]))
|
||||
err = s.GetFile(file, new_file)
|
||||
if err != nil {
|
||||
return err
|
||||
}
|
||||
}
|
||||
|
||||
return nil
|
||||
}
|
||||
|
||||
// Get the directories and files underneath a given sftp root path
|
||||
func (s Sync) getChildren(root string) ([]string, []string, error) {
|
||||
// Used to walk through the path
|
||||
walker := s.sftpClients[0].Walk(root)
|
||||
|
||||
// Keep track of the directories
|
||||
dirs := make([]string, 0)
|
||||
// Keep track of the files
|
||||
files := make([]string, 0)
|
||||
|
||||
// Walk through the files and directories
|
||||
for walker.Step() {
|
||||
err := walker.Err()
|
||||
if err != nil {
|
||||
return nil, nil, err
|
||||
}
|
||||
|
||||
stat := walker.Stat()
|
||||
if stat.IsDir() {
|
||||
dirs = append(dirs, walker.Path())
|
||||
} else {
|
||||
files = append(files, walker.Path())
|
||||
}
|
||||
}
|
||||
|
||||
err := walker.Err()
|
||||
if err != nil {
|
||||
return nil, nil, err
|
||||
}
|
||||
|
||||
return dirs, files, nil
|
||||
}
|
||||
|
||||
// Determine if a directory, file, or link exists
|
||||
func (s Sync) Exists(path string) (bool, error) {
|
||||
_, err := s.sftpClients[0].Lstat(path)
|
||||
|
||||
if err != nil {
|
||||
if err.Error() == "sftp: \"No such file\" (SSH_FX_NO_SUCH_FILE)" {
|
||||
return false, nil
|
||||
}
|
||||
|
||||
return false, err
|
||||
}
|
||||
|
||||
return true, nil
|
||||
}
|
Loading…
Reference in a new issue