1 __ ______ _ _ _____ _ _____
2 \ \ / / __ \| | | | __ \| | / ____|
3 \ \_/ / | | | | | | |__) | | | (___
4 \ /| | | | | | | _ /| | \___ \
5 | | | |__| | |__| | | \ \| |____ ____) |
6 |_| \____/ \____/|_| \_\______|_____/
8 YOURLS - Your Own URL Shortener
9 ===============================
11 _By Lester CHAN (initial idea), Ozh RICHARD (development) and contributors._
13 This program is free software. Do whatever the hell you want with it.
14 The license under which the YOURLS software is released is the GPLv3
15 from the [Free Software Foundation](http://fsf.org/).
16 This program is distributed in the hope that it will be useful and/or
17 fun to use. There is absolutely no guarantee of any kind about anything.
19 ---------------------------------------------------------------
21 This software incorporates code stolen from
22 [WordPress](http://wordpress.org/about/license/), as shown by
23 comments in source where applicable.
25 ---------------------------------------------------------------
27 GNU GENERAL PUBLIC LICENSE
28 ==========================
30 Version 3, 29 June 2007
32 Copyright © 2007 Free Software Foundation, Inc. <<http://fsf.org/>>
34 Everyone is permitted to copy and distribute verbatim copies of this license
35 document, but changing it is not allowed.
39 The GNU General Public License is a free, copyleft license for software and other
42 The licenses for most software and other practical works are designed to take away
43 your freedom to share and change the works. By contrast, the GNU General Public
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45 program--to make sure it remains free software for all its users. We, the Free
46 Software Foundation, use the GNU General Public License for most of our software; it
47 applies also to any other work released this way by its authors. You can apply it to
50 When we speak of free software, we are referring to freedom, not price. Our General
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58 you distribute copies of the software, or if you modify it: responsibilities to
59 respect the freedom of others.
61 For example, if you distribute copies of such a program, whether gratis or for a fee,
62 you must pass on to the recipients the same freedoms that you received. You must make
63 sure that they, too, receive or can get the source code. And you must show them these
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66 Developers that use the GNU GPL protect your rights with two steps: (1) assert
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70 For the developers' and authors' protection, the GPL clearly explains that there is
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75 Some devices are designed to deny users access to install or run modified versions of
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89 GPL assures that patents cannot be used to render the program non-free.
91 The precise terms and conditions for copying, distribution and modification follow.
93 ## TERMS AND CONDITIONS
97 “This License” refers to version 3 of the GNU General Public License.
99 “Copyright” also means copyright-like laws that apply to other kinds of
100 works, such as semiconductor masks.
102 “The Program” refers to any copyrightable work licensed under this
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106 To “modify” a work means to copy from or adapt all or part of the work in
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109 work “based on” the earlier work.
111 A “covered work” means either the unmodified Program or a work based on
114 To “propagate” a work means to do anything with it that, without
115 permission, would make you directly or secondarily liable for infringement under
116 applicable copyright law, except executing it on a computer or modifying a private
117 copy. Propagation includes copying, distribution (with or without modification),
118 making available to the public, and in some countries other activities as well.
120 To “convey” a work means any kind of propagation that enables other
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124 An interactive user interface displays “Appropriate Legal Notices” to the
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129 License. If the interface presents a list of user commands or options, such as a
130 menu, a prominent item in the list meets this criterion.
134 The “source code” for a work means the preferred form of the work for
135 making modifications to it. “Object code” means any non-source form of a
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144 the work as a whole, that (a) is included in the normal form of packaging a Major
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149 (kernel, window system, and so on) of the specific operating system (if any) on which
150 the executable work runs, or a compiler used to produce the work, or an object code
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154 source code needed to generate, install, and (for an executable work) run the object
155 code and to modify the work, including scripts to control those activities. However,
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165 automatically from other parts of the Corresponding Source.
167 The Corresponding Source for a work in source code form is that same work.
169 ### 2. Basic Permissions.
171 All rights granted under this License are granted for the term of copyright on the
172 Program, and are irrevocable provided the stated conditions are met. This License
173 explicitly affirms your unlimited permission to run the unmodified Program. The
174 output from running a covered work is covered by this License only if the output,
175 given its content, constitutes a covered work. This License acknowledges your rights
176 of fair use or other equivalent, as provided by copyright law.
178 You may make, run and propagate covered works that you do not convey, without
179 conditions so long as your license otherwise remains in force. You may convey covered
180 works to others for the sole purpose of having them make modifications exclusively
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191 ### 3. Protecting Users' Legal Rights From Anti-Circumvention Law.
193 No covered work shall be deemed part of an effective technological measure under any
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199 technological measures to the extent such circumvention is effected by exercising
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201 intention to limit operation or modification of the work as a means of enforcing,
202 against the work's users, your or third parties' legal rights to forbid circumvention
203 of technological measures.
205 ### 4. Conveying Verbatim Copies.
207 You may convey verbatim copies of the Program's source code as you receive it, in any
208 medium, provided that you conspicuously and appropriately publish on each copy an
209 appropriate copyright notice; keep intact all notices stating that this License and
210 any non-permissive terms added in accord with section 7 apply to the code; keep
211 intact all notices of the absence of any warranty; and give all recipients a copy of
212 this License along with the Program.
214 You may charge any price or no price for each copy that you convey, and you may offer
215 support or warranty protection for a fee.
217 ### 5. Conveying Modified Source Versions.
219 You may convey a work based on the Program, or the modifications to produce it from
220 the Program, in the form of source code under the terms of section 4, provided that
221 you also meet all of these conditions:
223 * a) The work must carry prominent notices stating that you modified it, and giving a
225 * b) The work must carry prominent notices stating that it is released under this
226 License and any conditions added under section 7. This requirement modifies the
227 requirement in section 4 to “keep intact all notices”.
228 * c) You must license the entire work, as a whole, under this License to anyone who
229 comes into possession of a copy. This License will therefore apply, along with any
230 applicable section 7 additional terms, to the whole of the work, and all its parts,
231 regardless of how they are packaged. This License gives no permission to license the
232 work in any other way, but it does not invalidate such permission if you have
233 separately received it.
234 * d) If the work has interactive user interfaces, each must display Appropriate Legal
235 Notices; however, if the Program has interactive interfaces that do not display
236 Appropriate Legal Notices, your work need not make them do so.
238 A compilation of a covered work with other separate and independent works, which are
239 not by their nature extensions of the covered work, and which are not combined with
240 it such as to form a larger program, in or on a volume of a storage or distribution
241 medium, is called an “aggregate” if the compilation and its resulting
242 copyright are not used to limit the access or legal rights of the compilation's users
243 beyond what the individual works permit. Inclusion of a covered work in an aggregate
244 does not cause this License to apply to the other parts of the aggregate.
246 ### 6. Conveying Non-Source Forms.
248 You may convey a covered work in object code form under the terms of sections 4 and
249 5, provided that you also convey the machine-readable Corresponding Source under the
250 terms of this License, in one of these ways:
252 * a) Convey the object code in, or embodied in, a physical product (including a
253 physical distribution medium), accompanied by the Corresponding Source fixed on a
254 durable physical medium customarily used for software interchange.
255 * b) Convey the object code in, or embodied in, a physical product (including a
256 physical distribution medium), accompanied by a written offer, valid for at least
257 three years and valid for as long as you offer spare parts or customer support for
258 that product model, to give anyone who possesses the object code either (1) a copy of
259 the Corresponding Source for all the software in the product that is covered by this
260 License, on a durable physical medium customarily used for software interchange, for
261 a price no more than your reasonable cost of physically performing this conveying of
262 source, or (2) access to copy the Corresponding Source from a network server at no
264 * c) Convey individual copies of the object code with a copy of the written offer to
265 provide the Corresponding Source. This alternative is allowed only occasionally and
266 noncommercially, and only if you received the object code with such an offer, in
267 accord with subsection 6b.
268 * d) Convey the object code by offering access from a designated place (gratis or for
269 a charge), and offer equivalent access to the Corresponding Source in the same way
270 through the same place at no further charge. You need not require recipients to copy
271 the Corresponding Source along with the object code. If the place to copy the object
272 code is a network server, the Corresponding Source may be on a different server
273 (operated by you or a third party) that supports equivalent copying facilities,
274 provided you maintain clear directions next to the object code saying where to find
275 the Corresponding Source. Regardless of what server hosts the Corresponding Source,
276 you remain obligated to ensure that it is available for as long as needed to satisfy
278 * e) Convey the object code using peer-to-peer transmission, provided you inform
279 other peers where the object code and Corresponding Source of the work are being
280 offered to the general public at no charge under subsection 6d.
282 A separable portion of the object code, whose source code is excluded from the
283 Corresponding Source as a System Library, need not be included in conveying the
286 A “User Product” is either (1) a “consumer product”, which
287 means any tangible personal property which is normally used for personal, family, or
288 household purposes, or (2) anything designed or sold for incorporation into a
289 dwelling. In determining whether a product is a consumer product, doubtful cases
290 shall be resolved in favor of coverage. For a particular product received by a
291 particular user, “normally used” refers to a typical or common use of
292 that class of product, regardless of the status of the particular user or of the way
293 in which the particular user actually uses, or expects or is expected to use, the
294 product. A product is a consumer product regardless of whether the product has
295 substantial commercial, industrial or non-consumer uses, unless such uses represent
296 the only significant mode of use of the product.
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301 its Corresponding Source. The information must suffice to ensure that the continued
302 functioning of the modified object code is in no case prevented or interfered with
303 solely because modification has been made.
305 If you convey an object code work under this section in, or with, or specifically for
306 use in, a User Product, and the conveying occurs as part of a transaction in which
307 the right of possession and use of the User Product is transferred to the recipient
308 in perpetuity or for a fixed term (regardless of how the transaction is
309 characterized), the Corresponding Source conveyed under this section must be
310 accompanied by the Installation Information. But this requirement does not apply if
311 neither you nor any third party retains the ability to install modified object code
312 on the User Product (for example, the work has been installed in ROM).
314 The requirement to provide Installation Information does not include a requirement to
315 continue to provide support service, warranty, or updates for a work that has been
316 modified or installed by the recipient, or for the User Product in which it has been
317 modified or installed. Access to a network may be denied when the modification itself
318 materially and adversely affects the operation of the network or violates the rules
319 and protocols for communication across the network.
321 Corresponding Source conveyed, and Installation Information provided, in accord with
322 this section must be in a format that is publicly documented (and with an
323 implementation available to the public in source code form), and must require no
324 special password or key for unpacking, reading or copying.
326 ### 7. Additional Terms.
328 “Additional permissions” are terms that supplement the terms of this
329 License by making exceptions from one or more of its conditions. Additional
330 permissions that are applicable to the entire Program shall be treated as though they
331 were included in this License, to the extent that they are valid under applicable
332 law. If additional permissions apply only to part of the Program, that part may be
333 used separately under those permissions, but the entire Program remains governed by
334 this License without regard to the additional permissions.
336 When you convey a copy of a covered work, you may at your option remove any
337 additional permissions from that copy, or from any part of it. (Additional
338 permissions may be written to require their own removal in certain cases when you
339 modify the work.) You may place additional permissions on material, added by you to a
340 covered work, for which you have or can give appropriate copyright permission.
342 Notwithstanding any other provision of this License, for material you add to a
343 covered work, you may (if authorized by the copyright holders of that material)
344 supplement the terms of this License with terms:
346 * a) Disclaiming warranty or limiting liability differently from the terms of
347 sections 15 and 16 of this License; or
348 * b) Requiring preservation of specified reasonable legal notices or author
349 attributions in that material or in the Appropriate Legal Notices displayed by works
351 * c) Prohibiting misrepresentation of the origin of that material, or requiring that
352 modified versions of such material be marked in reasonable ways as different from the
354 * d) Limiting the use for publicity purposes of names of licensors or authors of the
356 * e) Declining to grant rights under trademark law for use of some trade names,
357 trademarks, or service marks; or
358 * f) Requiring indemnification of licensors and authors of that material by anyone
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363 All other non-permissive additional terms are considered “further
364 restrictions” within the meaning of section 10. If the Program as you received
365 it, or any part of it, contains a notice stating that it is governed by this License
366 along with a term that is a further restriction, you may remove that term. If a
367 license document contains a further restriction but permits relicensing or conveying
368 under this License, you may add to a covered work material governed by the terms of
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370 relicensing or conveying.
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373 the relevant source files, a statement of the additional terms that apply to those
374 files, or a notice indicating where to find the applicable terms.
376 Additional terms, permissive or non-permissive, may be stated in the form of a
377 separately written license, or stated as exceptions; the above requirements apply
382 You may not propagate or modify a covered work except as expressly provided under
383 this License. Any attempt otherwise to propagate or modify it is void, and will
384 automatically terminate your rights under this License (including any patent licenses
385 granted under the third paragraph of section 11).
387 However, if you cease all violation of this License, then your license from a
388 particular copyright holder is reinstated (a) provisionally, unless and until the
389 copyright holder explicitly and finally terminates your license, and (b) permanently,
390 if the copyright holder fails to notify you of the violation by some reasonable means
391 prior to 60 days after the cessation.
393 Moreover, your license from a particular copyright holder is reinstated permanently
394 if the copyright holder notifies you of the violation by some reasonable means, this
395 is the first time you have received notice of violation of this License (for any
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397 your receipt of the notice.
399 Termination of your rights under this section does not terminate the licenses of
400 parties who have received copies or rights from you under this License. If your
401 rights have been terminated and not permanently reinstated, you do not qualify to
402 receive new licenses for the same material under section 10.
404 ### 9. Acceptance Not Required for Having Copies.
406 You are not required to accept this License in order to receive or run a copy of the
407 Program. Ancillary propagation of a covered work occurring solely as a consequence of
408 using peer-to-peer transmission to receive a copy likewise does not require
409 acceptance. However, nothing other than this License grants you permission to
410 propagate or modify any covered work. These actions infringe copyright if you do not
411 accept this License. Therefore, by modifying or propagating a covered work, you
412 indicate your acceptance of this License to do so.
414 ### 10. Automatic Licensing of Downstream Recipients.
416 Each time you convey a covered work, the recipient automatically receives a license
417 from the original licensors, to run, modify and propagate that work, subject to this
418 License. You are not responsible for enforcing compliance by third parties with this
421 An “entity transaction” is a transaction transferring control of an
422 organization, or substantially all assets of one, or subdividing an organization, or
423 merging organizations. If propagation of a covered work results from an entity
424 transaction, each party to that transaction who receives a copy of the work also
425 receives whatever licenses to the work the party's predecessor in interest had or
426 could give under the previous paragraph, plus a right to possession of the
427 Corresponding Source of the work from the predecessor in interest, if the predecessor
428 has it or can get it with reasonable efforts.
430 You may not impose any further restrictions on the exercise of the rights granted or
431 affirmed under this License. For example, you may not impose a license fee, royalty,
432 or other charge for exercise of rights granted under this License, and you may not
433 initiate litigation (including a cross-claim or counterclaim in a lawsuit) alleging
434 that any patent claim is infringed by making, using, selling, offering for sale, or
435 importing the Program or any portion of it.
439 A “contributor” is a copyright holder who authorizes use under this
440 License of the Program or a work on which the Program is based. The work thus
441 licensed is called the contributor's “contributor version”.
443 A contributor's “essential patent claims” are all patent claims owned or
444 controlled by the contributor, whether already acquired or hereafter acquired, that
445 would be infringed by some manner, permitted by this License, of making, using, or
446 selling its contributor version, but do not include claims that would be infringed
447 only as a consequence of further modification of the contributor version. For
448 purposes of this definition, “control” includes the right to grant patent
449 sublicenses in a manner consistent with the requirements of this License.
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452 under the contributor's essential patent claims, to make, use, sell, offer for sale,
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456 In the following three paragraphs, a “patent license” is any express
457 agreement or commitment, however denominated, not to enforce a patent (such as an
458 express permission to practice a patent or covenant not to sue for patent
459 infringement). To “grant” such a patent license to a party means to make
460 such an agreement or commitment not to enforce a patent against the party.
462 If you convey a covered work, knowingly relying on a patent license, and the
463 Corresponding Source of the work is not available for anyone to copy, free of charge
464 and under the terms of this License, through a publicly available network server or
465 other readily accessible means, then you must either (1) cause the Corresponding
466 Source to be so available, or (2) arrange to deprive yourself of the benefit of the
467 patent license for this particular work, or (3) arrange, in a manner consistent with
468 the requirements of this License, to extend the patent license to downstream
469 recipients. “Knowingly relying” means you have actual knowledge that, but
470 for the patent license, your conveying the covered work in a country, or your
471 recipient's use of the covered work in a country, would infringe one or more
472 identifiable patents in that country that you have reason to believe are valid.
474 If, pursuant to or in connection with a single transaction or arrangement, you
475 convey, or propagate by procuring conveyance of, a covered work, and grant a patent
476 license to some of the parties receiving the covered work authorizing them to use,
477 propagate, modify or convey a specific copy of the covered work, then the patent
478 license you grant is automatically extended to all recipients of the covered work and
481 A patent license is “discriminatory” if it does not include within the
482 scope of its coverage, prohibits the exercise of, or is conditioned on the
483 non-exercise of one or more of the rights that are specifically granted under this
484 License. You may not convey a covered work if you are a party to an arrangement with
485 a third party that is in the business of distributing software, under which you make
486 payment to the third party based on the extent of your activity of conveying the
487 work, and under which the third party grants, to any of the parties who would receive
488 the covered work from you, a discriminatory patent license (a) in connection with
489 copies of the covered work conveyed by you (or copies made from those copies), or (b)
490 primarily for and in connection with specific products or compilations that contain
491 the covered work, unless you entered into that arrangement, or that patent license
492 was granted, prior to 28 March 2007.
494 Nothing in this License shall be construed as excluding or limiting any implied
495 license or other defenses to infringement that may otherwise be available to you
496 under applicable patent law.
498 ### 12. No Surrender of Others' Freedom.
500 If conditions are imposed on you (whether by court order, agreement or otherwise)
501 that contradict the conditions of this License, they do not excuse you from the
502 conditions of this License. If you cannot convey a covered work so as to satisfy
503 simultaneously your obligations under this License and any other pertinent
504 obligations, then as a consequence you may not convey it at all. For example, if you
505 agree to terms that obligate you to collect a royalty for further conveying from
506 those to whom you convey the Program, the only way you could satisfy both those terms
507 and this License would be to refrain entirely from conveying the Program.
509 ### 13. Use with the GNU Affero General Public License.
511 Notwithstanding any other provision of this License, you have permission to link or
512 combine any covered work with a work licensed under version 3 of the GNU Affero
513 General Public License into a single combined work, and to convey the resulting work.
514 The terms of this License will continue to apply to the part which is the covered
515 work, but the special requirements of the GNU Affero General Public License, section
516 13, concerning interaction through a network will apply to the combination as such.
518 ### 14. Revised Versions of this License.
520 The Free Software Foundation may publish revised and/or new versions of the GNU
521 General Public License from time to time. Such new versions will be similar in spirit
522 to the present version, but may differ in detail to address new problems or concerns.
524 Each version is given a distinguishing version number. If the Program specifies that
525 a certain numbered version of the GNU General Public License “or any later
526 version” applies to it, you have the option of following the terms and
527 conditions either of that numbered version or of any later version published by the
528 Free Software Foundation. If the Program does not specify a version number of the GNU
529 General Public License, you may choose any version ever published by the Free
532 If the Program specifies that a proxy can decide which future versions of the GNU
533 General Public License can be used, that proxy's public statement of acceptance of a
534 version permanently authorizes you to choose that version for the Program.
536 Later license versions may give you additional or different permissions. However, no
537 additional obligations are imposed on any author or copyright holder as a result of
538 your choosing to follow a later version.
540 ### 15. Disclaimer of Warranty.
542 THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.
543 EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
544 PROVIDE THE PROGRAM “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER
545 EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
546 MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE
547 QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE
548 DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
550 ### 16. Limitation of Liability.
552 IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY
553 COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM AS
554 PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL,
555 INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE
556 PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE
557 OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE
558 WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
559 POSSIBILITY OF SUCH DAMAGES.
561 ### 17. Interpretation of Sections 15 and 16.
563 If the disclaimer of warranty and limitation of liability provided above cannot be
564 given local legal effect according to their terms, reviewing courts shall apply local
565 law that most closely approximates an absolute waiver of all civil liability in
566 connection with the Program, unless a warranty or assumption of liability accompanies
567 a copy of the Program in return for a fee.
569 END OF TERMS AND CONDITIONS
571 ## How to Apply These Terms to Your New Programs
573 If you develop a new program, and you want it to be of the greatest possible use to
574 the public, the best way to achieve this is to make it free software which everyone
575 can redistribute and change under these terms.
577 To do so, attach the following notices to the program. It is safest to attach them
578 to the start of each source file to most effectively state the exclusion of warranty;
579 and each file should have at least the “copyright” line and a pointer to
580 where the full notice is found.
582 <one line to give the program's name and a brief idea of what it does.>
583 Copyright (C) <year> <name of author>
585 This program is free software: you can redistribute it and/or modify
586 it under the terms of the GNU General Public License as published by
587 the Free Software Foundation, either version 3 of the License, or
588 (at your option) any later version.
590 This program is distributed in the hope that it will be useful,
591 but WITHOUT ANY WARRANTY; without even the implied warranty of
592 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
593 GNU General Public License for more details.
595 You should have received a copy of the GNU General Public License
596 along with this program. If not, see <http://www.gnu.org/licenses/>.
598 Also add information on how to contact you by electronic and paper mail.
600 If the program does terminal interaction, make it output a short notice like this
601 when it starts in an interactive mode:
603 <program> Copyright (C) <year> <name of author>
604 This program comes with ABSOLUTELY NO WARRANTY; for details type 'show w'.
605 This is free software, and you are welcome to redistribute it
606 under certain conditions; type 'show c' for details.
608 The hypothetical commands `show w` and `show c` should show the appropriate parts of
609 the General Public License. Of course, your program's commands might be different;
610 for a GUI interface, you would use an “about box”.
612 You should also get your employer (if you work as a programmer) or school, if any, to
613 sign a “copyright disclaimer” for the program, if necessary. For more
614 information on this, and how to apply and follow the GNU GPL, see
615 <<http://www.gnu.org/licenses/>>.
617 The GNU General Public License does not permit incorporating your program into
618 proprietary programs. If your program is a subroutine library, you may consider it
619 more useful to permit linking proprietary applications with the library. If this is
620 what you want to do, use the GNU Lesser General Public License instead of this
621 License. But first, please read
622 <<http://www.gnu.org/philosophy/why-not-lgpl.html>>.
projects / Github / YOURLS.git / blob