Copyright for telegram-desktop source package in Buster

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: Telegram Desktop
Source: https://github.com/telegramdesktop/tdesktop

Files: *
Copyright: 2014-2019 John Preston 
License: GPL-3.0+ with OpenSSL exception

Files: Telegram/Patches/qtbase_5_6_2.diff
Copyright: 1985, 1987, 1990, 1998 The Open Group
           1987 Digital Equipment Corporation, Maynard, Massachusetts
           1987, 1994, 1998 The Open Group
           1991 Oracle and/or its affiliates
           1993 Silicon Graphics Computer Systems, Inc.
           2001 Ellis Whitehead 
           2004 Jaroslaw Staniek 
           2008 Dan Nicholson
           2011-2012 CSSlayer
           2012 Daniel Stone
           2012 Intel Corporation
           2013 Ran Benita
License: GPL-2.0+ and Expat and MIT1 and MIT2 and MIT3

Files: Telegram/Resources/fonts/OpenSans-Regular.ttf
       Telegram/Resources/fonts/OpenSans-Bold.ttf
       Telegram/Resources/fonts/OpenSans-Semibold.ttf
Author: Steve Matteson
Copyright: 2010-2011 Google Corporation
License: Apache-2.0

Files: Telegram/Resources/emoji_autocomplete.json
Copyright: 2017 EmojiOne Inc.
License: Expat
Comment: See https://github.com/emojione/emojione/tree/master/extras/alpha-codes

Files: Telegram/SourceFiles/boxes/mute_settings_box.h
       Telegram/SourceFiles/boxes/mute_settings_box.cpp
Copyright: 2017 Nicholas Guriev 
License: Public-domain

Files: Telegram/gyp/PrecompiledHeader.cmake
Copyright: 2009-2013 Lars Christensen 
License: Expat

Files: Telegram/ThirdParty/minizip/*
Copyright: 1998-2010 Gilles Vollant 
           2009-2010 Mathias Svensson 
           2007-2008 Even Rouault
           1990-2000 Info-ZIP
License: Zlib

Files: Telegram/ThirdParty/SPMediaKeyTap/*
Copyright: 2010 Spotify AB
           2011 Joachim Bengtsson
License: BSD-1-Clause
Comment: Source code on GitHub - https://github.com/nevyn/SPMediaKeyTap

Files: snap/*
Author: Marco Trevisan 
Copyright: 2017-2018 Canonical Ltd
License: GPL-3.0 or Public-domain
Comment: Contribution License Agreement is signed.
         https://github.com/telegramdesktop/tdesktop/pull/4505#event-1746102406

Files: debian/*
Copyright: 2016-2019 Nicholas Guriev 
License: Public-domain
Comment: Contributing policy - https://cla-assistant.io/telegramdesktop/tdesktop

Files: debian/crl/*
Copyright: 2014-2019 John Preston 
License: GPL-3.0+ with OpenSSL exception
Comment: Source code on GitHub - https://github.com/telegramdesktop/crl

Files: debian/qt_functions.cpp
Copyright: 2015 The Qt Company Ltd.
License: LGPL-2.1-or-3 with Qt-1.1 exception

License: Apache-2.0
 Licensed under the Apache License, Version 2.0 (the "License"); you may not use
 this file except in compliance with the License. You may obtain a copy of the
 License at
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     http://www.apache.org/licenses/LICENSE-2.0
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 CONDITIONS OF ANY KIND, either express or implied. See the License for the
 specific language governing permissions and limitations under the License.
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 On Debian systems, the full text of the Apache License version 2 can be found
 in /usr/share/common-licenses/Apache-2.0.

License: BSD-1-Clause
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are met:
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 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

License: Expat
 Permission is hereby granted, free of charge, to any person obtaining a copy of
 this software and associated documentation files (the 'Software') deal in the
 Software without restriction, including without limitation the rights to use,
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 The above copyright notice and this permission notice shall be included in all
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 THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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License: LGPL-2.1-or-3 with Qt-1.1 exception
 This file may be used under the terms of the GNU Lesser General Public License
 version 2.1 or version 3 as published by the Free Software Foundation and
 appearing in the file LICENSE.LGPLv21 and LICENSE.LGPLv3 included in the
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 In addition, as a special exception, The Qt Company gives you certain
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 Exception version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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 On Debian systems, the complete text of the GNU Lesser General Public License
 version 2.1 can be found in /usr/share/common-licenses/LGPL-2.1. The complete
 text of the GNU Lesser General Public License version 3 can be found in
 /usr/share/common-licenses/LGPL-3.
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 The Qt Company LGPL Exception version 1.1:
 As an additional permission to the GNU Lesser General Public License version
 2.1, the object code form of a "work that uses the Library" may incorporate
 material from a header file that is part of the Library.  You may distribute
 such object code under terms of your choice, provided that:
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     (ii)  the incorporated material is limited to numerical parameters, data
           structure layouts, accessors, macros, inline functions and templates;
           and
     (iii) you comply with the terms of Section 6 of the GNU Lesser General
           Public License version 2.1.
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 Moreover, you may apply this exception to a modified version of the Library,
 provided that such modification does not involve copying material from the
 Library into the modified Library's header files unless such material is
 limited to (i) numerical parameters; (ii) data structure layouts; (iii)
 accessors; and (iv) small macros, templates and inline functions of five lines
 or less in length.
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 Furthermore, you are not required to apply this additional permission to a
 modified version of the Library.

License: GPL-2.0+
 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 2 of the License, or (at your option) any later
 version.
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 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, write to the Free Software Foundation, Inc., 51 Franklin
 St, Fifth Floor, Boston, MA 02110-1301, USA.
 .
 On Debian systems, the complete text of the GNU General Public License version
 2 can be found in "/usr/share/common-licenses/GPL-2".

License: GPL-3.0
 This program is free software: you can redistribute it and/or modify it under
 the terms of the GNU General Public License version 3 as published by the Free
 Software Foundation.
 .
 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 .
 .
 On Debian systems, the complete text of the GNU General Public License version
 3 can be found in "/usr/share/common-licenses/GPL-3".

License: GPL-3.0+ with OpenSSL exception
 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.
 .
 In addition, as a special exception, the copyright holders give permission to
 link the code of portions of this program with the OpenSSL library. You must
 obey the GNU General Public License in all respects for all of the code used
 other than OpenSSL. If you modify file(s) with this exception, you may extend
 this exception to your version of the file(s), but you are not obligated to do
 so. If you do not wish to do so, delete this exception statement from your
 version. If you delete this exception statement from all source files in the
 program, then also delete it here.
 .
 This package 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 .
 .
 On Debian systems, the complete text of the GNU General Public License version
 3 can be found in "/usr/share/common-licenses/GPL-3".

License: MIT1
 Permission to use, copy, modify, distribute, and sell this software and its
 documentation for any purpose is hereby granted without fee, provided that the
 above copyright notice appear in all copies and that both that copyright notice
 and this permission notice appear in supporting documentation.
 .
 The above copyright notice and this permission notice shall be included in all
 copies or substantial portions of the Software.
 .
 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
 OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 .
 Except as contained in this notice, the name of The Open Group shall not be
 used in advertising or otherwise to promote the sale, use or other dealings in
 this Software without prior written authorization from The Open Group.

License: MIT2
 Permission to use, copy, modify, and distribute this software and its
 documentation for any purpose and without fee is hereby granted, provided that
 the above copyright notice appear in all copies and that both that copyright
 notice and this permission notice appear in supporting documentation, and that
 the name of Digital not be used in advertising or publicity pertaining to
 distribution of the software without specific, written prior permission.
 .
 DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL DIGITAL BE
 LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
 CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
 WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

License: MIT3
 Permission to use, copy, modify, and distribute this software and its
 documentation for any purpose and without fee is hereby granted, provided that
 the above copyright notice appear in all copies and that both that copyright
 notice and this permission notice appear in supporting documentation, and that
 the name of Silicon Graphics not be used in advertising or publicity pertaining
 to distribution of the software without specific prior written permission.
 Silicon Graphics makes no representation about the suitability of this software
 for any purpose. It is provided "as is" without any express or implied
 warranty.
 .
 SILICON GRAPHICS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
 INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR ANY
 SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
 FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
 OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION  WITH THE USE OR
 PERFORMANCE OF THIS SOFTWARE.

License: Public-domain
 I certify that:
 a) The contribution was created in whole by me or is based upon previous work
    that, to the best of my knowledge, is in the public domain and I have the
    right to put it in the public domain.
 b) I understand and agree that this project and the contribution are public and
    that a record of the contribution (including all metadata and personal
    information I submit with it, including my sign-off) is maintained
    indefinitely and may be redistributed.
 c) I am granting this work into the public domain.

License: Zlib
 This software is provided 'as-is', without any express or implied warranty.  In
 no event will the authors be held liable for any damages arising from the use
 of this software.
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 Permission is granted to anyone to use this software for any purpose, including
 commercial applications, and to alter it and redistribute it freely, subject to
 the following restrictions:
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 1. The origin of this software must not be misrepresented; you must not claim
    that you wrote the original software. If you use this software in a product,
    an acknowledgment in the product documentation would be appreciated but is
    not required.
 2. Altered source versions must be plainly marked as such, and must not be
    misrepresented as being the original software.
 3. This notice may not be removed or altered from any source distribution.