diff --git a/LICENSE b/LICENSE index 94a9ed024d3859793618152ea559a168bbcbb5e2..65c5ca88a67c30becee01c5a8816d964b03862f9 100644 --- a/LICENSE +++ b/LICENSE @@ -1,674 +1,165 @@ - GNU GENERAL PUBLIC LICENSE + GNU LESSER GENERAL PUBLIC LICENSE Version 3, 29 June 2007 Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/> Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed. - Preamble - - The GNU General Public License is a free, copyleft license for -software and other kinds of works. - - The licenses for most software and other practical works are designed -to take away your freedom to share and change the works. By contrast, -the GNU General Public License is intended to guarantee your freedom to -share and change all versions of a program--to make sure it remains free -software for all its users. We, the Free Software Foundation, use the -GNU General Public License for most of our software; it applies also to -any other work released this way by its authors. You can apply it to -your programs, too. - - When we speak of free software, we are referring to freedom, not -price. Our General Public Licenses are designed to make sure that you -have the freedom to distribute copies of free software (and charge for -them if you wish), that you receive source code or can get it if you -want it, that you can change the software or use pieces of it in new -free programs, and that you know you can do these things. - - To protect your rights, we need to prevent others from denying you -these rights or asking you to surrender the rights. Therefore, you have -certain responsibilities if you distribute copies of the software, or if -you modify it: responsibilities to respect the freedom of others. - - For example, if you distribute copies of such a program, whether -gratis or for a fee, you must pass on to the recipients the same -freedoms that you received. You must make sure that they, too, receive -or can get the source code. And you must show them these terms so they -know their rights. - - Developers that use the GNU GPL protect your rights with two steps: -(1) assert copyright on the software, and (2) offer you this License -giving you legal permission to copy, distribute and/or modify it. - - For the developers' and authors' protection, the GPL clearly explains -that there is no warranty for this free software. For both users' and -authors' sake, the GPL requires that modified versions be marked as -changed, so that their problems will not be attributed erroneously to -authors of previous versions. - - Some devices are designed to deny users access to install or run -modified versions of the software inside them, although the manufacturer -can do so. This is fundamentally incompatible with the aim of -protecting users' freedom to change the software. The systematic -pattern of such abuse occurs in the area of products for individuals to -use, which is precisely where it is most unacceptable. Therefore, we -have designed this version of the GPL to prohibit the practice for those -products. If such problems arise substantially in other domains, we -stand ready to extend this provision to those domains in future versions -of the GPL, as needed to protect the freedom of users. - - Finally, every program is threatened constantly by software patents. -States should not allow patents to restrict development and use of -software on general-purpose computers, but in those that do, we wish to -avoid the special danger that patents applied to a free program could -make it effectively proprietary. To prevent this, the GPL assures that -patents cannot be used to render the program non-free. - - The precise terms and conditions for copying, distribution and -modification follow. - - TERMS AND CONDITIONS - - 0. Definitions. - - "This License" refers to version 3 of the GNU General Public License. - - "Copyright" also means copyright-like laws that apply to other kinds of -works, such as semiconductor masks. - - "The Program" refers to any copyrightable work licensed under this -License. Each licensee is addressed as "you". "Licensees" and -"recipients" may be individuals or organizations. - - To "modify" a work means to copy from or adapt all or part of the work -in a fashion requiring copyright permission, other than the making of an -exact copy. The resulting work is called a "modified version" of the -earlier work or a work "based on" the earlier work. - - A "covered work" means either the unmodified Program or a work based -on the Program. - - To "propagate" a work means to do anything with it that, without -permission, would make you directly or secondarily liable for -infringement under applicable copyright law, except executing it on a -computer or modifying a private copy. Propagation includes copying, -distribution (with or without modification), making available to the -public, and in some countries other activities as well. - - To "convey" a work means any kind of propagation that enables other -parties to make or receive copies. Mere interaction with a user through -a computer network, with no transfer of a copy, is not conveying. - - An interactive user interface displays "Appropriate Legal Notices" -to the extent that it includes a convenient and prominently visible -feature that (1) displays an appropriate copyright notice, and (2) -tells the user that there is no warranty for the work (except to the -extent that warranties are provided), that licensees may convey the -work under this License, and how to view a copy of this License. If -the interface presents a list of user commands or options, such as a -menu, a prominent item in the list meets this criterion. - - 1. Source Code. - - The "source code" for a work means the preferred form of the work -for making modifications to it. "Object code" means any non-source -form of a work. - - A "Standard Interface" means an interface that either is an official -standard defined by a recognized standards body, or, in the case of -interfaces specified for a particular programming language, one that -is widely used among developers working in that language. - - The "System Libraries" of an executable work include anything, other -than the work as a whole, that (a) is included in the normal form of -packaging a Major Component, but which is not part of that Major -Component, and (b) serves only to enable use of the work with that -Major Component, or to implement a Standard Interface for which an -implementation is available to the public in source code form. A -"Major Component", in this context, means a major essential component -(kernel, window system, and so on) of the specific operating system -(if any) on which the executable work runs, or a compiler used to -produce the work, or an object code interpreter used to run it. - - The "Corresponding Source" for a work in object code form means all -the source code needed to generate, install, and (for an executable -work) run the object code and to modify the work, including scripts to -control those activities. However, it does not include the work's -System Libraries, or general-purpose tools or generally available free -programs which are used unmodified in performing those activities but -which are not part of the work. For example, Corresponding Source -includes interface definition files associated with source files for -the work, and the source code for shared libraries and dynamically -linked subprograms that the work is specifically designed to require, -such as by intimate data communication or control flow between those -subprograms and other parts of the work. - - The Corresponding Source need not include anything that users -can regenerate automatically from other parts of the Corresponding -Source. - - The Corresponding Source for a work in source code form is that -same work. - - 2. Basic Permissions. - - All rights granted under this License are granted for the term of -copyright on the Program, and are irrevocable provided the stated -conditions are met. This License explicitly affirms your unlimited -permission to run the unmodified Program. The output from running a -covered work is covered by this License only if the output, given its -content, constitutes a covered work. This License acknowledges your -rights of fair use or other equivalent, as provided by copyright law. - - You may make, run and propagate covered works that you do not -convey, without conditions so long as your license otherwise remains -in force. You may convey covered works to others for the sole purpose -of having them make modifications exclusively for you, or provide you -with facilities for running those works, provided that you comply with -the terms of this License in conveying all material for which you do -not control copyright. Those thus making or running the covered works -for you must do so exclusively on your behalf, under your direction -and control, on terms that prohibit them from making any copies of -your copyrighted material outside their relationship with you. - - Conveying under any other circumstances is permitted solely under -the conditions stated below. Sublicensing is not allowed; section 10 -makes it unnecessary. - - 3. Protecting Users' Legal Rights From Anti-Circumvention Law. - - No covered work shall be deemed part of an effective technological -measure under any applicable law fulfilling obligations under article -11 of the WIPO copyright treaty adopted on 20 December 1996, or -similar laws prohibiting or restricting circumvention of such -measures. - - When you convey a covered work, you waive any legal power to forbid -circumvention of technological measures to the extent such circumvention -is effected by exercising rights under this License with respect to -the covered work, and you disclaim any intention to limit operation or -modification of the work as a means of enforcing, against the work's -users, your or third parties' legal rights to forbid circumvention of -technological measures. - - 4. Conveying Verbatim Copies. - - You may convey verbatim copies of the Program's source code as you -receive it, in any medium, provided that you conspicuously and -appropriately publish on each copy an appropriate copyright notice; -keep intact all notices stating that this License and any -non-permissive terms added in accord with section 7 apply to the code; -keep intact all notices of the absence of any warranty; and give all -recipients a copy of this License along with the Program. - - You may charge any price or no price for each copy that you convey, -and you may offer support or warranty protection for a fee. - - 5. Conveying Modified Source Versions. - - You may convey a work based on the Program, or the modifications to -produce it from the Program, in the form of source code under the -terms of section 4, provided that you also meet all of these conditions: - - a) The work must carry prominent notices stating that you modified - it, and giving a relevant date. - - b) The work must carry prominent notices stating that it is - released under this License and any conditions added under section - 7. This requirement modifies the requirement in section 4 to - "keep intact all notices". - - c) You must license the entire work, as a whole, under this - License to anyone who comes into possession of a copy. This - License will therefore apply, along with any applicable section 7 - additional terms, to the whole of the work, and all its parts, - regardless of how they are packaged. This License gives no - permission to license the work in any other way, but it does not - invalidate such permission if you have separately received it. - - d) If the work has interactive user interfaces, each must display - Appropriate Legal Notices; however, if the Program has interactive - interfaces that do not display Appropriate Legal Notices, your - work need not make them do so. - - A compilation of a covered work with other separate and independent -works, which are not by their nature extensions of the covered work, -and which are not combined with it such as to form a larger program, -in or on a volume of a storage or distribution medium, is called an -"aggregate" if the compilation and its resulting copyright are not -used to limit the access or legal rights of the compilation's users -beyond what the individual works permit. Inclusion of a covered work -in an aggregate does not cause this License to apply to the other -parts of the aggregate. - - 6. Conveying Non-Source Forms. - - You may convey a covered work in object code form under the terms -of sections 4 and 5, provided that you also convey the -machine-readable Corresponding Source under the terms of this License, -in one of these ways: - - a) Convey the object code in, or embodied in, a physical product - (including a physical distribution medium), accompanied by the - Corresponding Source fixed on a durable physical medium - customarily used for software interchange. - - b) Convey the object code in, or embodied in, a physical product - (including a physical distribution medium), accompanied by a - written offer, valid for at least three years and valid for as - long as you offer spare parts or customer support for that product - model, to give anyone who possesses the object code either (1) a - copy of the Corresponding Source for all the software in the - product that is covered by this License, on a durable physical - medium customarily used for software interchange, for a price no - more than your reasonable cost of physically performing this - conveying of source, or (2) access to copy the - Corresponding Source from a network server at no charge. - - c) Convey individual copies of the object code with a copy of the - written offer to provide the Corresponding Source. This - alternative is allowed only occasionally and noncommercially, and - only if you received the object code with such an offer, in accord - with subsection 6b. - - d) Convey the object code by offering access from a designated - place (gratis or for a charge), and offer equivalent access to the - Corresponding Source in the same way through the same place at no - further charge. You need not require recipients to copy the - Corresponding Source along with the object code. If the place to - copy the object code is a network server, the Corresponding Source - may be on a different server (operated by you or a third party) - that supports equivalent copying facilities, provided you maintain - clear directions next to the object code saying where to find the - Corresponding Source. Regardless of what server hosts the - Corresponding Source, you remain obligated to ensure that it is - available for as long as needed to satisfy these requirements. - - e) Convey the object code using peer-to-peer transmission, provided - you inform other peers where the object code and Corresponding - Source of the work are being offered to the general public at no - charge under subsection 6d. - - A separable portion of the object code, whose source code is excluded -from the Corresponding Source as a System Library, need not be -included in conveying the object code work. - - A "User Product" is either (1) a "consumer product", which means any -tangible personal property which is normally used for personal, family, -or household purposes, or (2) anything designed or sold for incorporation -into a dwelling. In determining whether a product is a consumer product, -doubtful cases shall be resolved in favor of coverage. For a particular -product received by a particular user, "normally used" refers to a -typical or common use of that class of product, regardless of the status -of the particular user or of the way in which the particular user -actually uses, or expects or is expected to use, the product. A product -is a consumer product regardless of whether the product has substantial -commercial, industrial or non-consumer uses, unless such uses represent -the only significant mode of use of the product. - - "Installation Information" for a User Product means any methods, -procedures, authorization keys, or other information required to install -and execute modified versions of a covered work in that User Product from -a modified version of its Corresponding Source. The information must -suffice to ensure that the continued functioning of the modified object -code is in no case prevented or interfered with solely because -modification has been made. - - If you convey an object code work under this section in, or with, or -specifically for use in, a User Product, and the conveying occurs as -part of a transaction in which the right of possession and use of the -User Product is transferred to the recipient in perpetuity or for a -fixed term (regardless of how the transaction is characterized), the -Corresponding Source conveyed under this section must be accompanied -by the Installation Information. But this requirement does not apply -if neither you nor any third party retains the ability to install -modified object code on the User Product (for example, the work has -been installed in ROM). - - The requirement to provide Installation Information does not include a -requirement to continue to provide support service, warranty, or updates -for a work that has been modified or installed by the recipient, or for -the User Product in which it has been modified or installed. Access to a -network may be denied when the modification itself materially and -adversely affects the operation of the network or violates the rules and -protocols for communication across the network. - - Corresponding Source conveyed, and Installation Information provided, -in accord with this section must be in a format that is publicly -documented (and with an implementation available to the public in -source code form), and must require no special password or key for -unpacking, reading or copying. - - 7. Additional Terms. - - "Additional permissions" are terms that supplement the terms of this -License by making exceptions from one or more of its conditions. -Additional permissions that are applicable to the entire Program shall -be treated as though they were included in this License, to the extent -that they are valid under applicable law. If additional permissions -apply only to part of the Program, that part may be used separately -under those permissions, but the entire Program remains governed by -this License without regard to the additional permissions. - - When you convey a copy of a covered work, you may at your option -remove any additional permissions from that copy, or from any part of -it. (Additional permissions may be written to require their own -removal in certain cases when you modify the work.) You may place -additional permissions on material, added by you to a covered work, -for which you have or can give appropriate copyright permission. - - Notwithstanding any other provision of this License, for material you -add to a covered work, you may (if authorized by the copyright holders of -that material) supplement the terms of this License with terms: - - a) Disclaiming warranty or limiting liability differently from the - terms of sections 15 and 16 of this License; or - - b) Requiring preservation of specified reasonable legal notices or - author attributions in that material or in the Appropriate Legal - Notices displayed by works containing it; or - - c) Prohibiting misrepresentation of the origin of that material, or - requiring that modified versions of such material be marked in - reasonable ways as different from the original version; or - - d) Limiting the use for publicity purposes of names of licensors or - authors of the material; or - - e) Declining to grant rights under trademark law for use of some - trade names, trademarks, or service marks; or - - f) Requiring indemnification of licensors and authors of that - material by anyone who conveys the material (or modified versions of - it) with contractual assumptions of liability to the recipient, for - any liability that these contractual assumptions directly impose on - those licensors and authors. - - All other non-permissive additional terms are considered "further -restrictions" within the meaning of section 10. If the Program as you -received it, or any part of it, contains a notice stating that it is -governed by this License along with a term that is a further -restriction, you may remove that term. If a license document contains -a further restriction but permits relicensing or conveying under this -License, you may add to a covered work material governed by the terms -of that license document, provided that the further restriction does -not survive such relicensing or conveying. - - If you add terms to a covered work in accord with this section, you -must place, in the relevant source files, a statement of the -additional terms that apply to those files, or a notice indicating -where to find the applicable terms. - - Additional terms, permissive or non-permissive, may be stated in the -form of a separately written license, or stated as exceptions; -the above requirements apply either way. - - 8. Termination. - - You may not propagate or modify a covered work except as expressly -provided under this License. Any attempt otherwise to propagate or -modify it is void, and will automatically terminate your rights under -this License (including any patent licenses granted under the third -paragraph of section 11). - - However, if you cease all violation of this License, then your -license from a particular copyright holder is reinstated (a) -provisionally, unless and until the copyright holder explicitly and -finally terminates your license, and (b) permanently, if the copyright -holder fails to notify you of the violation by some reasonable means -prior to 60 days after the cessation. - - Moreover, your license from a particular copyright holder is -reinstated permanently if the copyright holder notifies you of the -violation by some reasonable means, this is the first time you have -received notice of violation of this License (for any work) from that -copyright holder, and you cure the violation prior to 30 days after -your receipt of the notice. - - Termination of your rights under this section does not terminate the -licenses of parties who have received copies or rights from you under -this License. If your rights have been terminated and not permanently -reinstated, you do not qualify to receive new licenses for the same -material under section 10. - - 9. Acceptance Not Required for Having Copies. - - You are not required to accept this License in order to receive or -run a copy of the Program. Ancillary propagation of a covered work -occurring solely as a consequence of using peer-to-peer transmission -to receive a copy likewise does not require acceptance. However, -nothing other than this License grants you permission to propagate or -modify any covered work. These actions infringe copyright if you do -not accept this License. Therefore, by modifying or propagating a -covered work, you indicate your acceptance of this License to do so. - - 10. Automatic Licensing of Downstream Recipients. - - Each time you convey a covered work, the recipient automatically -receives a license from the original licensors, to run, modify and -propagate that work, subject to this License. You are not responsible -for enforcing compliance by third parties with this License. - - An "entity transaction" is a transaction transferring control of an -organization, or substantially all assets of one, or subdividing an -organization, or merging organizations. If propagation of a covered -work results from an entity transaction, each party to that -transaction who receives a copy of the work also receives whatever -licenses to the work the party's predecessor in interest had or could -give under the previous paragraph, plus a right to possession of the -Corresponding Source of the work from the predecessor in interest, if -the predecessor has it or can get it with reasonable efforts. - - You may not impose any further restrictions on the exercise of the -rights granted or affirmed under this License. For example, you may -not impose a license fee, royalty, or other charge for exercise of -rights granted under this License, and you may not initiate litigation -(including a cross-claim or counterclaim in a lawsuit) alleging that -any patent claim is infringed by making, using, selling, offering for -sale, or importing the Program or any portion of it. - - 11. Patents. - - A "contributor" is a copyright holder who authorizes use under this -License of the Program or a work on which the Program is based. The -work thus licensed is called the contributor's "contributor version". - - A contributor's "essential patent claims" are all patent claims -owned or controlled by the contributor, whether already acquired or -hereafter acquired, that would be infringed by some manner, permitted -by this License, of making, using, or selling its contributor version, -but do not include claims that would be infringed only as a -consequence of further modification of the contributor version. For -purposes of this definition, "control" includes the right to grant -patent sublicenses in a manner consistent with the requirements of -this License. - - Each contributor grants you a non-exclusive, worldwide, royalty-free -patent license under the contributor's essential patent claims, to -make, use, sell, offer for sale, import and otherwise run, modify and -propagate the contents of its contributor version. - - In the following three paragraphs, a "patent license" is any express -agreement or commitment, however denominated, not to enforce a patent -(such as an express permission to practice a patent or covenant not to -sue for patent infringement). To "grant" such a patent license to a -party means to make such an agreement or commitment not to enforce a -patent against the party. - - If you convey a covered work, knowingly relying on a patent license, -and the Corresponding Source of the work is not available for anyone -to copy, free of charge and under the terms of this License, through a -publicly available network server or other readily accessible means, -then you must either (1) cause the Corresponding Source to be so -available, or (2) arrange to deprive yourself of the benefit of the -patent license for this particular work, or (3) arrange, in a manner -consistent with the requirements of this License, to extend the patent -license to downstream recipients. "Knowingly relying" means you have -actual knowledge that, but for the patent license, your conveying the -covered work in a country, or your recipient's use of the covered work -in a country, would infringe one or more identifiable patents in that -country that you have reason to believe are valid. - - If, pursuant to or in connection with a single transaction or -arrangement, you convey, or propagate by procuring conveyance of, a -covered work, and grant a patent license to some of the parties -receiving the covered work authorizing them to use, propagate, modify -or convey a specific copy of the covered work, then the patent license -you grant is automatically extended to all recipients of the covered -work and works based on it. - - A patent license is "discriminatory" if it does not include within -the scope of its coverage, prohibits the exercise of, or is -conditioned on the non-exercise of one or more of the rights that are -specifically granted under this License. You may not convey a covered -work if you are a party to an arrangement with a third party that is -in the business of distributing software, under which you make payment -to the third party based on the extent of your activity of conveying -the work, and under which the third party grants, to any of the -parties who would receive the covered work from you, a discriminatory -patent license (a) in connection with copies of the covered work -conveyed by you (or copies made from those copies), or (b) primarily -for and in connection with specific products or compilations that -contain the covered work, unless you entered into that arrangement, -or that patent license was granted, prior to 28 March 2007. - - Nothing in this License shall be construed as excluding or limiting -any implied license or other defenses to infringement that may -otherwise be available to you under applicable patent law. - - 12. No Surrender of Others' Freedom. - - If conditions are imposed on you (whether by court order, agreement or -otherwise) that contradict the conditions of this License, they do not -excuse you from the conditions of this License. If you cannot convey a -covered work so as to satisfy simultaneously your obligations under this -License and any other pertinent obligations, then as a consequence you may -not convey it at all. For example, if you agree to terms that obligate you -to collect a royalty for further conveying from those to whom you convey -the Program, the only way you could satisfy both those terms and this -License would be to refrain entirely from conveying the Program. - - 13. Use with the GNU Affero General Public License. - - Notwithstanding any other provision of this License, you have -permission to link or combine any covered work with a work licensed -under version 3 of the GNU Affero General Public License into a single -combined work, and to convey the resulting work. The terms of this -License will continue to apply to the part which is the covered work, -but the special requirements of the GNU Affero General Public License, -section 13, concerning interaction through a network will apply to the -combination as such. - - 14. Revised Versions of this License. - - The Free Software Foundation may publish revised and/or new versions of -the GNU General Public License from time to time. Such new versions will -be similar in spirit to the present version, but may differ in detail to -address new problems or concerns. - - Each version is given a distinguishing version number. If the -Program specifies that a certain numbered version of the GNU General -Public License "or any later version" applies to it, you have the -option of following the terms and conditions either of that numbered -version or of any later version published by the Free Software -Foundation. If the Program does not specify a version number of the -GNU General Public License, you may choose any version ever published -by the Free Software Foundation. - - If the Program specifies that a proxy can decide which future -versions of the GNU General Public License can be used, that proxy's -public statement of acceptance of a version permanently authorizes you -to choose that version for the Program. - - Later license versions may give you additional or different -permissions. However, no additional obligations are imposed on any -author or copyright holder as a result of your choosing to follow a -later version. - - 15. Disclaimer of Warranty. - - THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY -APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT -HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY -OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, -THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR -PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM -IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF -ALL NECESSARY SERVICING, REPAIR OR CORRECTION. - - 16. Limitation of Liability. - - IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING -WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS -THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY -GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE -USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF -DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD -PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), -EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF -SUCH DAMAGES. - - 17. Interpretation of Sections 15 and 16. - - If the disclaimer of warranty and limitation of liability provided -above cannot be given local legal effect according to their terms, -reviewing courts shall apply local law that most closely approximates -an absolute waiver of all civil liability in connection with the -Program, unless a warranty or assumption of liability accompanies a -copy of the Program in return for a fee. - - END OF TERMS AND CONDITIONS - - How to Apply These Terms to Your New Programs - - If you develop a new program, and you want it to be of the greatest -possible use to the public, the best way to achieve this is to make it -free software which everyone can redistribute and change under these terms. - - To do so, attach the following notices to the program. It is safest -to attach them to the start of each source file to most effectively -state the exclusion of warranty; and each file should have at least -the "copyright" line and a pointer to where the full notice is found. - - <one line to give the program's name and a brief idea of what it does.> - Copyright (C) <year> <name of author> - - This program is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 3 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program. If not, see <http://www.gnu.org/licenses/>. - -Also add information on how to contact you by electronic and paper mail. - - If the program does terminal interaction, make it output a short -notice like this when it starts in an interactive mode: - - <program> Copyright (C) <year> <name of author> - This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. - This is free software, and you are welcome to redistribute it - under certain conditions; type `show c' for details. - -The hypothetical commands `show w' and `show c' should show the appropriate -parts of the General Public License. Of course, your program's commands -might be different; for a GUI interface, you would use an "about box". - - You should also get your employer (if you work as a programmer) or school, -if any, to sign a "copyright disclaimer" for the program, if necessary. -For more information on this, and how to apply and follow the GNU GPL, see -<http://www.gnu.org/licenses/>. - - The GNU General Public License does not permit incorporating your program -into proprietary programs. If your program is a subroutine library, you -may consider it more useful to permit linking proprietary applications with -the library. If this is what you want to do, use the GNU Lesser General -Public License instead of this License. But first, please read -<http://www.gnu.org/philosophy/why-not-lgpl.html>. + + This version of the GNU Lesser General Public License incorporates +the terms and conditions of version 3 of the GNU General Public +License, supplemented by the additional permissions listed below. + + 0. Additional Definitions. + + As used herein, "this License" refers to version 3 of the GNU Lesser +General Public License, and the "GNU GPL" refers to version 3 of the GNU +General Public License. + + "The Library" refers to a covered work governed by this License, +other than an Application or a Combined Work as defined below. + + An "Application" is any work that makes use of an interface provided +by the Library, but which is not otherwise based on the Library. +Defining a subclass of a class defined by the Library is deemed a mode +of using an interface provided by the Library. + + A "Combined Work" is a work produced by combining or linking an +Application with the Library. The particular version of the Library +with which the Combined Work was made is also called the "Linked +Version". + + The "Minimal Corresponding Source" for a Combined Work means the +Corresponding Source for the Combined Work, excluding any source code +for portions of the Combined Work that, considered in isolation, are +based on the Application, and not on the Linked Version. + + The "Corresponding Application Code" for a Combined Work means the +object code and/or source code for the Application, including any data +and utility programs needed for reproducing the Combined Work from the +Application, but excluding the System Libraries of the Combined Work. + + 1. Exception to Section 3 of the GNU GPL. + + You may convey a covered work under sections 3 and 4 of this License +without being bound by section 3 of the GNU GPL. + + 2. Conveying Modified Versions. + + If you modify a copy of the Library, and, in your modifications, a +facility refers to a function or data to be supplied by an Application +that uses the facility (other than as an argument passed when the +facility is invoked), then you may convey a copy of the modified +version: + + a) under this License, provided that you make a good faith effort to + ensure that, in the event an Application does not supply the + function or data, the facility still operates, and performs + whatever part of its purpose remains meaningful, or + + b) under the GNU GPL, with none of the additional permissions of + this License applicable to that copy. + + 3. Object Code Incorporating Material from Library Header Files. + + The object code form of an Application may incorporate material from +a header file that is part of the Library. You may convey such object +code under terms of your choice, provided that, if the incorporated +material is not limited to numerical parameters, data structure +layouts and accessors, or small macros, inline functions and templates +(ten or fewer lines in length), you do both of the following: + + a) Give prominent notice with each copy of the object code that the + Library is used in it and that the Library and its use are + covered by this License. + + b) Accompany the object code with a copy of the GNU GPL and this license + document. + + 4. Combined Works. + + You may convey a Combined Work under terms of your choice that, +taken together, effectively do not restrict modification of the +portions of the Library contained in the Combined Work and reverse +engineering for debugging such modifications, if you also do each of +the following: + + a) Give prominent notice with each copy of the Combined Work that + the Library is used in it and that the Library and its use are + covered by this License. + + b) Accompany the Combined Work with a copy of the GNU GPL and this license + document. + + c) For a Combined Work that displays copyright notices during + execution, include the copyright notice for the Library among + these notices, as well as a reference directing the user to the + copies of the GNU GPL and this license document. + + d) Do one of the following: + + 0) Convey the Minimal Corresponding Source under the terms of this + License, and the Corresponding Application Code in a form + suitable for, and under terms that permit, the user to + recombine or relink the Application with a modified version of + the Linked Version to produce a modified Combined Work, in the + manner specified by section 6 of the GNU GPL for conveying + Corresponding Source. + + 1) Use a suitable shared library mechanism for linking with the + Library. A suitable mechanism is one that (a) uses at run time + a copy of the Library already present on the user's computer + system, and (b) will operate properly with a modified version + of the Library that is interface-compatible with the Linked + Version. + + e) Provide Installation Information, but only if you would otherwise + be required to provide such information under section 6 of the + GNU GPL, and only to the extent that such information is + necessary to install and execute a modified version of the + Combined Work produced by recombining or relinking the + Application with a modified version of the Linked Version. (If + you use option 4d0, the Installation Information must accompany + the Minimal Corresponding Source and Corresponding Application + Code. If you use option 4d1, you must provide the Installation + Information in the manner specified by section 6 of the GNU GPL + for conveying Corresponding Source.) + + 5. Combined Libraries. + + You may place library facilities that are a work based on the +Library side by side in a single library together with other library +facilities that are not Applications and are not covered by this +License, and convey such a combined library under terms of your +choice, if you do both of the following: + + a) Accompany the combined library with a copy of the same work based + on the Library, uncombined with any other library facilities, + conveyed under the terms of this License. + + b) Give prominent notice with the combined library that part of it + is a work based on the Library, and explaining where to find the + accompanying uncombined form of the same work. + + 6. Revised Versions of the GNU Lesser General Public License. + + The Free Software Foundation may publish revised and/or new versions +of the GNU Lesser 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 +Library as you received it specifies that a certain numbered version +of the GNU Lesser General Public License "or any later version" +applies to it, you have the option of following the terms and +conditions either of that published version or of any later version +published by the Free Software Foundation. If the Library as you +received it does not specify a version number of the GNU Lesser +General Public License, you may choose any version of the GNU Lesser +General Public License ever published by the Free Software Foundation. + + If the Library as you received it specifies that a proxy can decide +whether future versions of the GNU Lesser General Public License shall +apply, that proxy's public statement of acceptance of any version is +permanent authorization for you to choose that version for the +Library. diff --git a/auth/db_auth.c b/auth/db_auth.c deleted file mode 100644 index c6c111f1c922b05458b3bce6a5176004d35de7c9..0000000000000000000000000000000000000000 --- a/auth/db_auth.c +++ /dev/null @@ -1,1049 +0,0 @@ -#include <string.h> -#include <stdlib.h> -#include <stdio.h> -#include <sys/wait.h> -#include <openssl/sha.h> -#include <openssl/rand.h> -#include <time.h> - -#include "common.h" -#include "config.h" -#include "dap_client.h" -#include "dap_http_client.h" -#include "enc.h" -#include "enc_key.h" -#include "enc_ks.h" -#include "enc_http.h" -#include "../db/db_core.h" -#include "db_auth.h" - -#define LOG_TAG "db_auth" - -#define OP_CODE_LOGIN_INCORRECT_PSWD "0xf2" -#define OP_CODE_NOT_FOUND_LOGIN_IN_DB "0xf3" -#define OP_CODE_SUBSCRIBE_EXPIRIED "0xf4" - -db_auth_info_t* auths=NULL; - -static bool mongod_is_running(); -static unsigned char* hash_password(const unsigned char* password, unsigned char* salt, size_t salt_size); - -int db_auth_init() -{ - log_it(NOTICE,"Initialized authorization module"); - - if(!mongod_is_running()) - { - return -1; - } - - return 0; -} - -void db_auth_deinit() -{ -} - -/** - * @brief db_auth_info_by_cookie Find user by its cookie - * @param cookie Cookie - * @return Zero if this cookie is not present - */ -db_auth_info_t* db_auth_info_by_cookie(const char * cookie) -{ - db_auth_info_t * ret = NULL; - - if ( cookie == NULL ) - { - log_it(ERROR, "cookie is NULL in db_auth_info_by_cookie"); - return NULL; - } - HASH_FIND_STR(auths, cookie, ret); - if(ret == NULL) - log_it(NOTICE,"Cookie '%s' not present in the table",cookie); - else - log_it(INFO,"Cookie '%s' has been found in the table",cookie); - return ret; -} - -db_auth_info_t* db_search_cookie_in_db(const char * cookie) -{ - mongoc_collection_t* collection_cookie = mongoc_client_get_collection - (mongo_client, my_config.db_name, "dap_cookie_history"); - - bson_t *query = bson_new(); - - BSON_APPEND_UTF8 (query, "cookie", cookie); - - mongoc_cursor_t *cursor_dap_cookie = mongoc_collection_find - (collection_cookie, MONGOC_QUERY_NONE, 0, 0, 0, query, NULL, NULL); - - bson_t *doc_dap_cookie_user; - - if( mongoc_cursor_next (cursor_dap_cookie, (const bson_t**)&doc_dap_cookie_user) == false ) - { - log_it(INFO, "Cookie not find in database"); - return NULL; - } - - bson_iter_t iter; - - if ( !(bson_iter_init (&iter, doc_dap_cookie_user) && bson_iter_find (&iter, "login")) ) - { - log_it(ERROR, "Login not found in document"); - return NULL; - } - - mongoc_collection_destroy(collection_cookie); - mongoc_cursor_destroy(cursor_dap_cookie); - - if(doc_dap_cookie_user) - bson_destroy(doc_dap_cookie_user); - - if(query) - bson_destroy(query); - - - /* ok user find now get information */ - - mongoc_collection_t* collection_dap_users = mongoc_client_get_collection - (mongo_client, my_config.db_name, "dap_users"); - - query = bson_new(); - - BSON_APPEND_UTF8 (query, "login", bson_iter_value(&iter)->value.v_utf8.str); - - mongoc_cursor_t* cursor_dap_users = mongoc_collection_find - (collection_dap_users, MONGOC_QUERY_NONE, 0, 0, 0, query, NULL, NULL); - - - if( mongoc_cursor_next (cursor_dap_users, (const bson_t**)&doc_dap_cookie_user) == false ) - { - log_it(INFO, "User not find in database"); - return NULL; - } - // mongoc_collection_destroy(collection_cookie); - - bson_iter_t sub_iter; - - // ok cookie find, get user information; - db_auth_info_t * ai = CALLOC(db_auth_info_t); - - if (bson_iter_init (&iter, doc_dap_cookie_user) && - bson_iter_find_descendant (&iter, "profile.first_name", &sub_iter)) - { - strncpy(ai->first_name, bson_iter_value(&sub_iter)->value.v_utf8.str, - bson_iter_value(&sub_iter)->value.v_utf8.len); - } - - if (bson_iter_init (&iter, doc_dap_cookie_user) && - bson_iter_find_descendant (&iter, "profile.last_name", &sub_iter)) - { - strncpy(ai->last_name,bson_iter_value(&sub_iter)->value.v_utf8.str, - bson_iter_value(&sub_iter)->value.v_utf8.len); - } - - if (bson_iter_init (&iter, doc_dap_cookie_user) && - bson_iter_find_descendant (&iter, "profile.email", &sub_iter)) - { - strncpy(ai->email,bson_iter_value(&sub_iter)->value.v_utf8.str, - bson_iter_value(&sub_iter)->value.v_utf8.len); - } - - strcpy(ai->cookie, cookie); - - mongoc_collection_destroy(collection_dap_users); - mongoc_cursor_destroy(cursor_dap_users); - - if(doc_dap_cookie_user) - bson_destroy(doc_dap_cookie_user); - - if(query) - bson_destroy(query); - - HASH_ADD_STR(auths,cookie,ai); - - return ai; -} - -/** - * @brief db_auth_user_change_password - * @param user - * @param password - * @param new_password - * @return - * @details change password for user ( check correctly current pass, for change to new ) - */ -bool db_auth_user_change_password(const char* user, const char* password, - const char* new_password) -{ - if ( check_user_password(user, password) == false ) - { - log_it(WARNING, "Error change password. Old user password not correct" , user); - return false; - } - - return db_auth_change_password(user, new_password); -} - -/** - * @brief db_auth_user_change_password - * @param user - * @param password - * @param new_password - * @return - * @details change passwd without check correct old password ( for admins ) - */ -bool db_auth_change_password(const char* user, const char* new_password) -{ - if ( exist_user_in_db(user) == false ) - { - log_it(WARNING, "Error change password. User %s not find" , user); - return false; - } - - mongoc_collection_t *collection_dap_users = mongoc_client_get_collection - (mongo_client, my_config.db_name, "dap_users"); - - bson_t *query = bson_new(); - - BSON_APPEND_UTF8 (query, "login", user); - - mongoc_cursor_t *cursor_dap_users = mongoc_collection_find - (collection_dap_users, MONGOC_QUERY_NONE, 0, 0, 0, query, NULL, NULL); - - bson_t *doc_dap_user; - - mongoc_cursor_next (cursor_dap_users, (const bson_t**)&doc_dap_user); - - bson_error_t error; - - char salt[8]; - RAND_bytes(salt, 8); - - unsigned const char * password_hash = hash_password(new_password, salt, 8); - char salt_b64[8*2] = {0}; - enc_base64_encode(salt, 8, salt_b64); - - if (!password_hash) { - log_it(WARNING,"Can not memmory allocate"); - return false; - } - - unsigned char * password_hash_b64 = calloc(4 * SHA512_DIGEST_LENGTH, sizeof(char)); - - if (!password_hash_b64) { - free((char*)password_hash); - log_it(WARNING,"Can not memmory allocate"); - return false; - } - - enc_base64_encode(password_hash, SHA512_DIGEST_LENGTH * 2, password_hash_b64); - - - if (*password_hash_b64 == 0) { - log_it(WARNING,"Bad hash(based64) for user password"); - return false; - } - - bson_t *update = BCON_NEW ("$set", "{", - "passwordHash", BCON_UTF8 (password_hash_b64), - "salt", BCON_UTF8 (salt_b64),"}"); - - if (!mongoc_collection_update (collection_dap_users, MONGOC_UPDATE_NONE, doc_dap_user, update, NULL, &error)) { - log_it(WARNING,"%s", error.message); - return false; - } - - mongoc_collection_destroy(collection_dap_users); - - if(query) - bson_destroy(query); - - if(cursor_dap_users) - mongoc_cursor_destroy(cursor_dap_users); - - if(doc_dap_user) - bson_destroy(doc_dap_user); - - free((char*)password_hash); free((char*)password_hash_b64); - - log_it(INFO, "user: %s change password to %s", user, new_password); - return true; -} - - -/** - * @brief check_user_password - * @param user - * @param password - * @return false if user password not correct - */ -bool check_user_password(const char* user, const char* password) -{ - if ( exist_user_in_db(user) == false ){ - log_it(WARNING,"User %s is not present in DB",user); - return false; - } - - bool is_correct_password = false; - - mongoc_collection_t *collection = mongoc_client_get_collection ( - mongo_client, my_config.db_name, "dap_users"); - - bson_t *query = bson_new(); - BSON_APPEND_UTF8 (query, "login", user); - - bson_iter_t iter; - bson_t *doc; - - mongoc_cursor_t *cursor = mongoc_collection_find (collection, MONGOC_QUERY_NONE, 0, 0, 0, - (const bson_t*)query, NULL, NULL); - - mongoc_cursor_next (cursor, (const bson_t**)&doc); - char salt[16] = {0}; char salt_from_b64[8] = {0}; - - if ( bson_iter_init (&iter, doc) && bson_iter_find (&iter, "salt") ) - memcpy(salt,bson_iter_value(&iter)->value.v_utf8.str,16); - else { - log_it(ERROR, "Not find Salt in user"); return NULL; - } - - enc_base64_decode(salt, 16, salt_from_b64); - - unsigned const char* password_hash = hash_password(password, salt_from_b64, 8); - if (!password_hash) { - log_it(ERROR, "Can not memmory allocate"); - return NULL; - } - - unsigned char * password_hash_b64 = calloc(4 * SHA512_DIGEST_LENGTH, sizeof(char)); - - if (!password_hash_b64) { - free((char*)password_hash); - log_it(ERROR, "Can not memmory allocate"); - return NULL; - } - - enc_base64_encode(password_hash, SHA512_DIGEST_LENGTH * 2, password_hash_b64); - - if (bson_iter_init (&iter, doc) && bson_iter_find (&iter, "passwordHash")) - { - if ( memcmp(password_hash_b64, bson_iter_value(&iter)->value.v_utf8.str, - SHA512_DIGEST_LENGTH * 2) == 0 ) - is_correct_password = true; - } - - mongoc_collection_destroy(collection); - - if(cursor) - mongoc_cursor_destroy(cursor); - - if(query) - bson_destroy(query); - - if(doc) - bson_destroy(doc); - - free((char*)password_hash); free((char*)password_hash_b64); - - return is_correct_password; -} - - -static bool db_auth_save_cookie_inform_in_db(const char* login, char* cookie) -{ - bool result = true; - mongoc_collection_t *collection = mongoc_client_get_collection ( - mongo_client, my_config.db_name, "dap_cookie_history"); - - bson_error_t error; - - bson_t *query = bson_new(); - BSON_APPEND_UTF8 (query, "login", login); - - mongoc_cursor_t *cursor_dap_cookie_history = mongoc_collection_find - (collection, MONGOC_QUERY_NONE, 0, 0, 0, query, NULL, NULL); - - struct tm *utc_date_time; - time_t t = time(NULL); - utc_date_time = localtime(&t); - - bson_t *doc_dap_cookie; bson_t *bson_doc = NULL; - if ( mongoc_cursor_next (cursor_dap_cookie_history, (const bson_t**)&doc_dap_cookie) ) - { - bson_doc = BCON_NEW ("$set", "{", - "login", BCON_UTF8 (login), - "cookie", BCON_UTF8 (cookie), - "last_use", BCON_DATE_TIME(mktime (utc_date_time) * 1000), - "}"); - - if (!mongoc_collection_update (collection, MONGOC_UPDATE_UPSERT, doc_dap_cookie, bson_doc, NULL, &error)) { - log_it(WARNING,"%s", error.message); - result = false; - } - } - else - { - bson_doc = BCON_NEW("login", BCON_UTF8 (login), - "cookie", BCON_UTF8 (cookie), - "last_use", BCON_DATE_TIME(mktime (utc_date_time) * 1000)); - - if (!mongoc_collection_insert (collection, MONGOC_INSERT_NONE, bson_doc, NULL, &error)) - { - log_it (WARNING, "%s\n", error.message); - result = false; - } - } - - mongoc_collection_destroy(collection); - mongoc_cursor_destroy(cursor_dap_cookie_history); - bson_destroy(query); - if(doc_dap_cookie) - bson_destroy(doc_dap_cookie); - if(bson_doc) - bson_destroy(bson_doc); - - return result; -} - -/** - * @brief db_auth_login Authorization with user/password - * @param login ( login = email ) - * @param password Password - * @param domain - * @return codes: 1 = login ok, 2 = login not found in DataBase, - * 3 = incorrect password; 4 = subscribe client has been expiried - */ -int db_auth_login(const char* login, const char* password, - const char* domain, db_auth_info_t** ai) -{ - *ai = NULL; - bson_t *doc; - - mongoc_collection_t *collection = mongoc_client_get_collection ( - mongo_client, my_config.db_name, "dap_users"); - - bson_t *query = bson_new(); - - if (strchr(login, '@')) - BSON_APPEND_UTF8 (query, "email", login); - else - BSON_APPEND_UTF8 (query, "login", login); - - mongoc_cursor_t *cursor = mongoc_collection_find (collection, MONGOC_QUERY_NONE, 0, 0, 0, - (const bson_t*)query, NULL, NULL); - - if ( mongoc_cursor_next (cursor, (const bson_t**)&doc) == false ) - { - mongoc_cursor_destroy (cursor); - bson_destroy (query); - mongoc_collection_destroy (collection); - log_it(WARNING, "%s not found in DataBase", login); - return 2; - } - - bson_iter_t iter; - - char salt[16] = {0}; char salt_from_b64[8]={0}; - if (bson_iter_init (&iter, doc) && bson_iter_find (&iter, "salt")) - memcpy(salt,bson_iter_value(&iter)->value.v_utf8.str,16); - else { - log_it(ERROR, "Not find Salt in user"); return 0; - } - - enc_base64_decode(salt, 16, salt_from_b64); - - unsigned const char* password_hash = hash_password(password, salt_from_b64, 8); - if (!password_hash) { - log_it(ERROR, "Can not memmory allocate"); - return 0; - } - - unsigned char * password_hash_b64 = calloc(4 * SHA512_DIGEST_LENGTH, sizeof(char)); - - if (!password_hash_b64) { - free((char*)password_hash); - log_it(ERROR, "Can not memmory allocate"); - return 0; - } - - enc_base64_encode(password_hash, SHA512_DIGEST_LENGTH * 2, password_hash_b64); - - if (bson_iter_init (&iter, doc) && bson_iter_find (&iter, "expire_date")) - { - if ( bson_iter_date_time(&iter) / 1000 < time(NULL) ) - { - log_it(WARNING, "Subscribe %s has been expiried", login); - return 4; - } - } - - if (bson_iter_init (&iter, doc) && bson_iter_find (&iter, "passwordHash")) - { - if ( memcmp(password_hash_b64, bson_iter_value(&iter)->value.v_utf8.str, - SHA512_DIGEST_LENGTH * 2) == 0 ) - { - { - bool b_error = false; - mongoc_collection_t *collection_dap_domain = mongoc_client_get_collection - (mongo_client, my_config.db_name, "dap_domains"); - - bson_t *query = bson_new(); - - BSON_APPEND_UTF8 (query, "domain", domain); - - mongoc_cursor_t *cursor_dap_domains = - mongoc_collection_find (collection_dap_domain, MONGOC_QUERY_NONE, 0, 0, 0, query, NULL, NULL); - - bson_t *doc_dap_domain; - - if ( mongoc_cursor_next (cursor_dap_domains, (const bson_t**)&doc_dap_domain) == false ) - { - log_it(WARNING, "Login Error! " - "Domain not found in DataBase (collection dap_domains)"); - - b_error = true; - } - - mongoc_cursor_destroy (cursor_dap_domains); - bson_destroy (query); - if(doc_dap_domain) - bson_destroy (doc_dap_domain); - mongoc_collection_destroy (collection_dap_domain); - - if(b_error) - return 0; - } - - log_it(INFO,"Login accepted"); - - *ai = CALLOC(db_auth_info_t); - strncpy((*ai)->user,login,sizeof((*ai)->user)); - strncpy((*ai)->password,password,sizeof((*ai)->password)); - - if ( !bson_iter_init (&iter, doc) ) - log_it(ERROR,"Error iter init"); - - bson_oid_t oid; - - if ( bson_iter_find(&iter, "_id") ) - { - bson_oid_init_from_data(&oid, (const uint8_t*) &bson_iter_value(&iter)->value.v_oid.bytes); - bson_oid_to_string(&oid, (*ai)->id); - } - else - log_it(ERROR,"Not find Id"); - - bson_iter_t sub_iter; - - if (bson_iter_init (&iter, doc) && - bson_iter_find_descendant (&iter, "profile.first_name", &sub_iter)) - strncpy((*ai)->first_name,bson_iter_value(&sub_iter)->value.v_utf8.str, - sizeof((*ai)->first_name)); - - if (bson_iter_init (&iter, doc) && - bson_iter_find_descendant (&iter, "profile.last_name", &sub_iter)) - strncpy((*ai)->last_name,bson_iter_value(&sub_iter)->value.v_utf8.str, - sizeof((*ai)->last_name)); - - if (bson_iter_init (&iter, doc) && - bson_iter_find_descendant (&iter, "profile.email", &sub_iter)) - strncpy((*ai)->email,bson_iter_value(&sub_iter)->value.v_utf8.str, - sizeof((*ai)->email)); - - for(int i=0; i < sizeof((*ai)->cookie); i++) - (*ai)->cookie[i] = 65 + rand() % 25; - - log_it(DEBUG,"Store cookie '%s' in the hash table",(*ai)->cookie); - db_auth_save_cookie_inform_in_db(login, (*ai)->cookie); - HASH_ADD_STR(auths,cookie,(*ai)); - } - } - - free(password_hash_b64); - free((char*)password_hash); - mongoc_cursor_destroy (cursor); - if(query) - bson_destroy (query); - - if(doc) - bson_destroy (doc); - mongoc_collection_destroy (collection); - - if( *ai == NULL ) - { - log_it (WARNING, "Incorrect password!"); - return 3; - } - return 1; -} - -/** - * @brief db_auth_register Register new user in database - * @param user Login name - * @param password Password - * @param first_name First name - * @param last_name Last name - * @param email Email - * @details registerUser - * @return - */ -db_auth_info_t * db_auth_register(const char *user,const char *password, - const char *domain, const char * first_name, - const char* last_name, const char * email, - const char * device_type,const char *app_version, - const char *hostaddr, const char *sys_uuid ) -{ - mongoc_collection_t *collection_dap_domain = mongoc_client_get_collection - (mongo_client, my_config.db_name, "dap_domains"); - - bson_t *query = bson_new(); - - BSON_APPEND_UTF8 (query, "domain", domain); - - mongoc_cursor_t *cursor_dap_domains = mongoc_collection_find - (collection_dap_domain, MONGOC_QUERY_NONE, 0, 0, 0, query, NULL, NULL); - - bson_t *doc_dap_domain; - - if ( mongoc_cursor_next (cursor_dap_domains, (const bson_t**)&doc_dap_domain) == false ) - { - log_it(WARNING, "Domain not found in DataBase (collection dap_domains) "); - return NULL; - } - - bson_iter_t iter; - bson_iter_init (&iter, doc_dap_domain); - if ( !bson_iter_find (&iter, "_id") ) - { - log_it(ERROR, "Where field _id in document?!"); - return NULL; - } - - mongoc_collection_t *collection = mongoc_client_get_collection - (mongo_client, my_config.db_name, "dap_users"); - bson_error_t error; - - char salt[8]; - RAND_bytes(salt, 8); - - unsigned const char * password_hash = hash_password(password, salt, 8); - char salt_b64[8*2] = {0}; - enc_base64_encode(salt, 8, salt_b64); - - if (!password_hash) { - log_it(ERROR, "Can not memmory allocate"); - return NULL; - } - - unsigned char * password_hash_b64 = calloc(4 * SHA512_DIGEST_LENGTH, sizeof(char)); - - if (!password_hash_b64) { - free((char*)password_hash); - log_it(ERROR, "Can not memmory allocate"); - return NULL; - } - - enc_base64_encode(password_hash, SHA512_DIGEST_LENGTH * 2, password_hash_b64); - - if (*password_hash_b64 == 0) { - log_it(ERROR, "Bad hash(based64) for user password"); - return NULL; - } - - bson_t *doc = BCON_NEW("login", user, - "passwordHash", password_hash_b64, - "salt",salt_b64, - "domainId", BCON_OID((bson_oid_t*)bson_iter_value(&iter)->value.v_oid.bytes), - "email", email, - "profile", - "{", - "first_name", first_name, - "last_name", last_name, - "}", - "contacts" , "[","]"); - free((char*)password_hash); - free(password_hash_b64); - - if (!mongoc_collection_insert (collection, MONGOC_INSERT_NONE, doc, NULL, &error)) { - log_it (WARNING, "%s\n", error.message); - - bson_destroy(query); - mongoc_collection_destroy (collection_dap_domain); - bson_destroy(doc_dap_domain); - mongoc_cursor_destroy(cursor_dap_domains); - bson_destroy (doc); - mongoc_collection_destroy (collection); - mongoc_cleanup(); - return NULL; - } - else - { - db_auth_info_t * ai = CALLOC(db_auth_info_t); - strncpy(ai->user,user,sizeof(ai->user)); - strncpy(ai->password,password,sizeof(ai->password)); - strncpy(ai->last_name,last_name,sizeof(ai->last_name)); - strncpy(ai->first_name,first_name,sizeof(ai->first_name)); - strncpy(ai->email,email,sizeof(ai->email)); - - for(int i=0;i<sizeof(ai->cookie);i++) - ai->cookie[i]=65+rand()%25; - - HASH_ADD_STR(auths,cookie,ai); - - bson_destroy(query); - mongoc_collection_destroy (collection_dap_domain); - bson_destroy(doc_dap_domain); - mongoc_cursor_destroy(cursor_dap_domains); - bson_destroy (doc); - mongoc_collection_destroy (collection); - mongoc_cleanup(); - - return ai; - } - - return NULL; -} - - -/** - * @brief db_auth_register_channel - * @param login - * @param password - * @details register channel - * @return - */ -db_auth_info_t * db_auth_register_channel(const char* name_channel, const char* domain, - const char* password) -{ - mongoc_collection_t *collection_dap_domain = mongoc_client_get_collection - (mongo_client, my_config.db_name, "dap_domains"); - - bson_t *query = bson_new(); - - BSON_APPEND_UTF8 (query, "domain", domain); - - mongoc_cursor_t *cursor_dap_domains = - mongoc_collection_find (collection_dap_domain, MONGOC_QUERY_NONE, 0, 0, 0, query, NULL, NULL); - - bson_t *doc_dap_domain; - - if ( mongoc_cursor_next (cursor_dap_domains, (const bson_t**)&doc_dap_domain) == false ) - { - log_it(WARNING, "Domain not found in DataBase (collection dap_domains) "); - return NULL; - } - - bson_iter_t iter; - bson_iter_init (&iter, doc_dap_domain); - if ( !bson_iter_find (&iter, "_id") ) - { - log_it(ERROR, "Where field _id in document?!"); - return NULL; - } - - mongoc_collection_t *collection = - mongoc_client_get_collection (mongo_client, my_config.db_name, "dap_channels"); - bson_error_t error; - - char salt[8]; - RAND_bytes(salt, 8); - unsigned const char * password_hash = hash_password(password, salt, 8); - - bson_t *doc = BCON_NEW("name_channel", name_channel, - "passwordHash", password_hash, - "salt",salt, - "domainId", BCON_OID((bson_oid_t*)bson_iter_value(&iter)->value.v_oid.bytes), - "subscribers", "[","]", - "last_id_message", BCON_INT32(0), - "messages","[","]"); - - free((char*)password_hash); - if (!mongoc_collection_insert (collection, MONGOC_INSERT_NONE, doc, NULL, &error)) { - log_it (ERROR, "%s\n", error.message); - bson_destroy(query); - bson_destroy(doc_dap_domain); - mongoc_cursor_destroy(cursor_dap_domains); - mongoc_collection_destroy(collection_dap_domain); - bson_destroy (doc); - mongoc_collection_destroy (collection); - mongoc_cleanup(); - return NULL; - } - - db_auth_info_t * ai = CALLOC(db_auth_info_t); - strncpy(ai->user,name_channel,sizeof(ai->user)); - strncpy(ai->password,password,sizeof(ai->password)); - - for(int i=0;i<sizeof(ai->cookie);i++) - ai->cookie[i]=65+rand()%25; - - HASH_ADD_STR(auths,cookie,ai); - - bson_destroy(query); - bson_destroy(doc_dap_domain); - mongoc_cursor_destroy(cursor_dap_domains); - mongoc_collection_destroy(collection_dap_domain); - bson_destroy (doc); - mongoc_collection_destroy (collection); - mongoc_cleanup(); - - return ai; -} - -bool exist_user_in_db(const char* user) -{ - bool exist = true; - bson_t *doc = NULL; - - mongoc_collection_t *collection = mongoc_client_get_collection ( - mongo_client, my_config.db_name, "dap_users"); - - bson_t *query = bson_new(); - BSON_APPEND_UTF8 (query, "login", user); - - mongoc_cursor_t *cursor = mongoc_collection_find (collection, MONGOC_QUERY_NONE, 0, 0, 0, - (const bson_t*)query, NULL, NULL); - - if ( mongoc_cursor_next (cursor, (const bson_t**)&doc) == false ) - { - exist = false; - log_it(WARNING, "Login not found in DataBase"); - } - - if(doc) - bson_destroy(doc); - - mongoc_cursor_destroy(cursor); - bson_destroy(query); - mongoc_collection_destroy(collection); - - return exist; -} - -/** - * @brief db_auth_http_proc DB Auth http interface - * @param cl_st HTTP Simple client instance - * @param arg Pointer to bool with okay status (true if everything is ok, by default) - */ -void db_auth_http_proc(enc_http_delegate_t *dg, void * arg) -{ - - if((dg->request)&&(strcmp(dg->action,"POST")==0)){ - if(dg->in_query==NULL){ - log_it(WARNING,"Empty auth action"); - dg->isOk=false; - }else{ - if(strcmp(dg->in_query,"logout")==0 ){ - db_auth_info_t * ai = db_auth_info_by_cookie(dg->cookie); - if(ai){ - log_it(DEBUG, "Cookie from %s user accepted, 0x%032llX session",ai->user,ai->id); - HASH_DEL(auths,ai); - free(ai); - enc_http_reply_f(dg, - "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\" ?>\n" - "<return>Successfuly logouted</return>\n" - ); - }else{ - log_it(NOTICE,"Logout action: session 0x%032llX is already logouted (by timeout?)",ai->id); - enc_http_reply_f(dg, - "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\" ?>\n" - "<err_str>No session in table</err_str>\n" - ); - } - - }else if(strcmp(dg->in_query,"login")==0 ){ - char user[256]; - char password[1024]; - char domain[64]; - if(sscanf(dg->request_str,"%255s %1023s %63s",user,password,domain)==3){ - log_it(INFO, "Trying to login with username '%s'",user); - if(db_input_validation(user)==0){ - log_it(WARNING,"Wrong symbols in username '%s'",user); - dg->isOk=false; - return; - } - if(db_input_validation(password)==0){ - log_it(WARNING,"Wrong symbols in password"); - dg->isOk=false; - return; - } - if(db_input_validation(domain)==0){ - log_it(WARNING,"Wrong symbols in password"); - dg->isOk=false; - return; - } - - db_auth_info_t * ai = NULL; - short login_result = db_auth_login(user, password, domain, &ai); - switch (login_result) { - case 1: - enc_http_reply_f(dg, - "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\" ?>\n" - "<auth_info>\n" - ); - enc_http_reply_f(dg,"\t<first_name>%s</first_name>\n",ai->first_name); - enc_http_reply_f(dg,"\t<last_name>%s</last_name>\n",ai->last_name); - enc_http_reply_f(dg,"\t<cookie>%s</cookie>\n",ai->cookie); - enc_http_reply_f(dg,"</auth_info>"); - log_it(INFO, "Login: Successfuly logined user %s",user); - break; - case 2: - enc_http_reply_f(dg, OP_CODE_NOT_FOUND_LOGIN_IN_DB); - break; - case 3: - enc_http_reply_f(dg, OP_CODE_LOGIN_INCORRECT_PSWD); - break; - case 4: - enc_http_reply_f(dg, OP_CODE_SUBSCRIBE_EXPIRIED); - break; - default: - log_it(DEBUG, "Login: wrong password for user %s",user); - dg->isOk=false; - break; - } - }else{ - log_it(DEBUG, "Login: wrong auth's request body "); - dg->isOk=false; - } - }else if (strcmp(dg->in_query,"register")==0){ - char user[256]; - char password[1024]; - char domain[64]; - char first_name[1024]; - char last_name[1024]; - // char phone_number[1024]; - - char email[1024]; - char device_type[32]; - char app_version[32]; - char sys_uuid[128]; - - log_it(INFO, "Request str = %s", dg->request_str); - if(sscanf(dg->request_str,"%255s %63s %1023s %1023s %1023s %1023s %32s %128s" - ,user,password,domain,first_name,last_name,email,device_type,app_version,sys_uuid)>=7){ - if(db_input_validation(user)==0){ - log_it(WARNING,"Registration: Wrong symbols in the username '%s'",user); - dg->isOk=false; - return; - } - if(db_input_validation(password)==0){ - log_it(WARNING,"Registration: Wrong symbols in the password"); - dg->isOk=false; - return; - } - if(db_input_validation(domain)==0){ - log_it(WARNING,"Registration: Wrong symbols in the password"); - dg->isOk=false; - return; - } - if(db_input_validation(first_name)==0){ - log_it(WARNING,"Registration: Wrong symbols in the first name '%s'",first_name); - dg->isOk=false; - return; - } - if(db_input_validation(last_name)==0){ - log_it(WARNING,"Registration: Wrong symbols in the last name '%s'",last_name); - dg->isOk=false; - return; - } - if(db_input_validation(email)==0){ - log_it(WARNING,"Registration: Wrong symbols in the email '%s'",email); - dg->isOk=false; - return; - } - - db_auth_info_t * ai = db_auth_register(user,password,domain,first_name,last_name,email, - device_type,app_version,dg->http->client->hostaddr,sys_uuid); - - if(ai != NULL) - { - enc_http_reply_f(dg, - "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\" ?>\n" - "<auth_info>\n" - ); - enc_http_reply_f(dg,"\t<first_name>%s</first_name>\n",ai->first_name); - enc_http_reply_f(dg,"\t<last_name>%s</last_name>\n",ai->last_name); - enc_http_reply_f(dg,"\t<cookie>%s</cookie>\n",ai->cookie); - enc_http_reply_f(dg,"</auth_info>"); - - log_it(NOTICE,"Registration: new user %s \"%s %s\"<%s> is registred",user,first_name,last_name,email); - } - else { - log_it(WARNING, "User not registered. Maybe login already exists"); - } - }else{ - log_it(ERROR, "Registration: Wrong auth's request body "); - dg->isOk=false; - } - }else{ - log_it(ERROR, "Unknown auth command was selected (query_string='%s')",dg->in_query); - dg->isOk=false; - } - } - }else{ - log_it(ERROR, "Wrong auth request action '%s'",dg->action); - dg->isOk=false; - } -} - -static bool mongod_is_running() -{ - int pfd[2]; - pipe(pfd); - - pid_t childpid; - - if((childpid = fork()) == -1) - { - log_it(ERROR,"Error fork()"); - return false; - } - - if(childpid == 0) - { - close(STDOUT_FILENO); - dup2(pfd[1], STDOUT_FILENO); - close(pfd[0]); - close(pfd[1]); - execlp("pgrep", "pgrep","mongod", NULL); - exit(0); - } - - waitpid(childpid, 0, 0); - - char readbuffer[10] = {'\0'}; - - int flags = fcntl(pfd[0], F_GETFL, 0); - fcntl(pfd[0], F_SETFL, flags | O_NONBLOCK); - read(pfd[0], readbuffer, sizeof(readbuffer)); - - if(readbuffer[0] == '\0') - { - log_it(ERROR,"MongoDB service not running. For start use: \"mongod\" in terminal"); - return false; - } - - close(pfd[0]); - close(pfd[1]); - - return true; -} - -inline static unsigned char* hash_password(const unsigned char* password, unsigned char* salt, size_t salt_size) -{ - unsigned char *md = (unsigned char*) malloc (SHA512_DIGEST_LENGTH * 2); - - size_t len_pswd = strlen(password); - size_t length_str = len_pswd + salt_size; - char str[length_str]; - - memcpy(str, password, len_pswd); - memcpy(str + len_pswd, salt, salt_size); - SHA512(str, length_str, md); - SHA512(salt, salt_size, md + SHA512_DIGEST_LENGTH); - - return md; -} - diff --git a/auth/db_auth.h b/auth/db_auth.h deleted file mode 100644 index 16e626bf6251db379bd74043e713d5b660ec210d..0000000000000000000000000000000000000000 --- a/auth/db_auth.h +++ /dev/null @@ -1,47 +0,0 @@ -#ifndef STREAM_AUTH_H -#define STREAM_AUTH_H -#include <stdint.h> -#include "uthash.h" - -#include "enc_http.h" - -typedef struct db_auth_info{ - char cookie[65]; - char id[27]; - char first_name[1024]; - char last_name[1024]; - char email[1024]; - char user[256]; - char password[1024]; - UT_hash_handle hh; // makes this structure hashable with UTHASH library -} db_auth_info_t; - -extern int db_auth_init(); -extern void db_auth_deinit(); - - -extern db_auth_info_t* db_auth_info_by_cookie(const char * cookie); -extern db_auth_info_t* db_search_cookie_in_db(const char * cookie); - -extern int db_auth_login(const char* login, const char* password, - const char* domain, db_auth_info_t** ai); - -extern db_auth_info_t * db_auth_register(const char *user,const char *password, - const char *domain, const char * first_name, - const char* last_name, const char * email, - const char * device_type, const char *app_version, - const char *hostaddr, const char *sys_uuid); - -extern db_auth_info_t * db_auth_register_channel(const char* name_channel, const char* domain, - const char* password); -extern bool exist_user_in_db(const char* user); - -extern bool db_auth_user_change_password(const char* user, const char* password, - const char* new_password); - -extern bool db_auth_change_password(const char *user, const char* new_password); - -extern bool check_user_password(const char* user, const char* password); - -extern void db_auth_http_proc(enc_http_delegate_t *dg, void * arg); -#endif