add csna

+Thumbs.db

+                    GNU GENERAL PUBLIC LICENSE
+                       Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The licenses for most software are designed to take away your
+freedom to share and change it.  By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users.  This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it.  (Some other Free Software Foundation software is covered by
+the GNU Lesser General Public License instead.)  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
+this service 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 make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
+you have.  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.
+
+  We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+  Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software.  If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
+that any problems introduced by others will not reflect on the original
+authors' reputations.
+
+  Finally, any free program is threatened constantly by software
+patents.  We wish to avoid the danger that redistributors of a free
+program will individually obtain patent licenses, in effect making the
+program proprietary.  To prevent this, we have made it clear that any
+patent must be licensed for everyone's free use or not licensed at all.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+                    GNU GENERAL PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License.  The "Program", below,
+refers to any such program or work, and a "work based on the Program"
+means either the Program or any derivative work under copyright law:
+that is to say, a work containing the Program or a portion of it,
+either verbatim or with modifications and/or translated into another
+language.  (Hereinafter, translation is included without limitation in
+the term "modification".)  Each licensee is addressed as "you".
+
+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope.  The act of
+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
+
+  1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
+conspicuously and appropriately publish on each copy an appropriate
+copyright notice and disclaimer of warranty; keep intact all the
+notices that refer to this License and to the absence of any warranty;
+and give any other recipients of the Program a copy of this License
+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
+
+  2. You may modify your copy or copies of the Program or any portion
+of it, thus forming a work based on the Program, and copy and
+distribute such modifications or work under the terms of Section 1
+above, provided that you also meet all of these conditions:
+
+    a) You must cause the modified files to carry prominent notices
+    stating that you changed the files and the date of any change.
+
+    b) You must cause any work that you distribute or publish, that in
+    whole or in part contains or is derived from the Program or any
+    part thereof, to be licensed as a whole at no charge to all third
+    parties under the terms of this License.
+
+    c) If the modified program normally reads commands interactively
+    when run, you must cause it, when started running for such
+    interactive use in the most ordinary way, to print or display an
+    announcement including an appropriate copyright notice and a
+    notice that there is no warranty (or else, saying that you provide
+    a warranty) and that users may redistribute the program under
+    these conditions, and telling the user how to view a copy of this
+    License.  (Exception: if the Program itself is interactive but
+    does not normally print such an announcement, your work based on
+    the Program is not required to print an announcement.)
+
+These requirements apply to the modified work as a whole.  If
+identifiable sections of that work are not derived from the Program,
+and can be reasonably considered independent and separate works in
+themselves, then this License, and its terms, do not apply to those
+sections when you distribute them as separate works.  But when you
+distribute the same sections as part of a whole which is a work based
+on the Program, the distribution of the whole must be on the terms of
+this License, whose permissions for other licensees extend to the
+entire whole, and thus to each and every part regardless of who wrote it.
+
+Thus, it is not the intent of this section to claim rights or contest
+your rights to work written entirely by you; rather, the intent is to
+exercise the right to control the distribution of derivative or
+collective works based on the Program.
+
+In addition, mere aggregation of another work not based on the Program
+with the Program (or with a work based on the Program) on a volume of
+a storage or distribution medium does not bring the other work under
+the scope of this License.
+
+  3. You may copy and distribute the Program (or a work based on it,
+under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you also do one of the following:
+
+    a) Accompany it with the complete corresponding machine-readable
+    source code, which must be distributed under the terms of Sections
+    1 and 2 above on a medium customarily used for software interchange; or,
+
+    b) Accompany it with a written offer, valid for at least three
+    years, to give any third party, for a charge no more than your
+    cost of physically performing source distribution, a complete
+    machine-readable copy of the corresponding source code, to be
+    distributed under the terms of Sections 1 and 2 above on a medium
+    customarily used for software interchange; or,
+
+    c) Accompany it with the information you received as to the offer
+    to distribute corresponding source code.  (This alternative is
+    allowed only for noncommercial distribution and only if you
+    received the program in object code or executable form with such
+    an offer, in accord with Subsection b above.)
+
+The source code for a work means the preferred form of the work for
+making modifications to it.  For an executable work, complete source
+code means all the source code for all modules it contains, plus any
+associated interface definition files, plus the scripts used to
+control compilation and installation of the executable.  However, as a
+special exception, the source code distributed need not include
+anything that is normally distributed (in either source or binary
+form) with the major components (compiler, kernel, and so on) of the
+operating system on which the executable runs, unless that component
+itself accompanies the executable.
+
+If distribution of executable or object code is made by offering
+access to copy from a designated place, then offering equivalent
+access to copy the source code from the same place counts as
+distribution of the source code, even though third parties are not
+compelled to copy the source along with the object code.
+
+  4. You may not copy, modify, sublicense, or distribute the Program
+except as expressly provided under this License.  Any attempt
+otherwise to copy, modify, sublicense or distribute the Program is
+void, and will automatically terminate your rights under this License.
+However, parties who have received copies, or rights, from you under
+this License will not have their licenses terminated so long as such
+parties remain in full compliance.
+
+  5. You are not required to accept this License, since you have not
+signed it.  However, nothing else grants you permission to modify or
+distribute the Program or its derivative works.  These actions are
+prohibited by law if you do not accept this License.  Therefore, by
+modifying or distributing the Program (or any work based on the
+Program), you indicate your acceptance of this License to do so, and
+all its terms and conditions for copying, distributing or modifying
+the Program or works based on it.
+
+  6. Each time you redistribute the Program (or any work based on the
+Program), the recipient automatically receives a license from the
+original licensor to copy, distribute or modify the Program subject to
+these terms and conditions.  You may not impose any further
+restrictions on the recipients' exercise of the rights granted herein.
+You are not responsible for enforcing compliance by third parties to
+this License.
+
+  7. If, as a consequence of a court judgment or allegation of patent
+infringement or for any other reason (not limited to patent issues),
+conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License.  If you cannot
+distribute so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you
+may not distribute the Program at all.  For example, if a patent
+license would not permit royalty-free redistribution of the Program by
+all those who receive copies directly or indirectly through you, then
+the only way you could satisfy both it and this License would be to
+refrain entirely from distribution of the Program.
+
+If any portion of this section is held invalid or unenforceable under
+any particular circumstance, the balance of the section is intended to
+apply and the section as a whole is intended to apply in other
+circumstances.
+
+It is not the purpose of this section to induce you to infringe any
+patents or other property right claims or to contest validity of any
+such claims; this section has the sole purpose of protecting the
+integrity of the free software distribution system, which is
+implemented by public license practices.  Many people have made
+generous contributions to the wide range of software distributed
+through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing
+to distribute software through any other system and a licensee cannot
+impose that choice.
+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+
+  8. If the distribution and/or use of the Program is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Program under this License
+may add an explicit geographical distribution limitation excluding
+those countries, so that distribution is permitted only in or among
+countries not thus excluded.  In such case, this License incorporates
+the limitation as if written in the body of this License.
+
+  9. The Free Software Foundation may publish revised and/or new versions
+of the General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+Each version is given a distinguishing version number.  If the Program
+specifies a version number of this License which applies to it and "any
+later version", you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation.  If the Program does not specify a version number of
+this License, you may choose any version ever published by the Free Software
+Foundation.
+
+  10. If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
+to ask for permission.  For software which is copyrighted by the Free
+Software Foundation, write to the Free Software Foundation; we sometimes
+make exceptions for this.  Our decision will be guided by the two goals
+of preserving the free status of all derivatives of our free software and
+of promoting the sharing and reuse of software generally.
+
+                            NO WARRANTY
+
+  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
+OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
+TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
+PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
+REPAIR OR CORRECTION.
+
+  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
+OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
+TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+                     END OF TERMS AND CONDITIONS
+
+            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
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    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.
+
+    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 Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+    Gnomovision version 69, Copyright (C) year name of author
+    Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary.  Here is a sample; alter the names:
+
+  Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+  `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+  <signature of Ty Coon>, 1 April 1989
+  Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs.  If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.

+This module provides avalibility to allow user sign in with top Chinese Social 
+Networks.
+
+Currently we support:
+Sina weibo （新浪微博）, Chinese twitter like website.
+Tencent （QQ）, biggest Chinese IM provider.
+Renren（人人网）, biggest Chinese facebook like website.
+Kaixin001（开心网）, secondary Chinese facebook like website.
+
+Configuration:
+The module contians 1 main module and 4 sub-modules.
+Each of these 4 sub-modules represent 4 Chinese Social Networks.
+Install and enable main module and any of these sub-modules you desired.
+Go to configuration page (/admin/config/csna) and fill the KEY and SECRET you 
+get from these Chinese Social Networks.
+
+URL of subscribing for KEYs and SECRETs:
+Weibo http://open.weibo.com/
+QQ http://connect.qq.com/
+Renren http://dev.renren.com/website
+Kaixin http://open.kaixin001.com/

+<?php
+
+/**
+ * @file
+ * Functionality for CSNA administration.
+ */
+
+/**
+ * Menu callback: CSNA key or secrect config.
+ */
+function csna_admin_settings() {
+  $providers = csna_providers();
+  foreach ($providers as $provider_id => $provider) {
+    $form[$provider_id] = array(
+      '#type' => 'fieldset',
+      '#title' => $provider['title'],
+      '#description' => $provider['description'],
+    );
+    $form[$provider_id]['csna_' . $provider_id . '_key'] = array(
+      '#type' => 'textfield',
+      '#title' => t('Key'),
+      '#size' => 40,
+      '#maxlength' => 255,
+      '#default_value' => variable_get('csna_' . $provider_id . '_key', ''),
+    );
+    $form[$provider_id]['csna_' . $provider_id . '_secret'] = array(
+      '#type' => 'textfield',
+      '#title' => t('Secret'),
+      '#size' => 40,
+      '#maxlength' => 255,
+      '#default_value' => variable_get('csna_' . $provider_id . '_secret', ''),
+    );
+  }
+
+  // If no provider/sub-module was found, provide a default help text.
+  if (!isset($form)) {
+    $form['default_message'] = array(
+      '#markup' => t('<strong>No CSNA third party API provider module has been enabled yet</strong>.<br/>Please enable <strong>at least a CSNA sub-module</strong> or any other <strong>CSNA API provider</strong> from the !modadminlink then feel free to browse this page again.<br/>See more information on !projectlink about <strong>supported providers</strong> and <strong>installation instructions</strong>.', array(
+        '!modadminlink' => l(t('module administration page'), 'admin/modules'),
+        '!projectlink' => l(t("module project's page"), 'http://drupal.org/project/csna', array('attributes' => array('target' => '_blank'))),
+      )),
+    );
+    return $form;
+  }
+  else {
+    $form['csna_require_email'] = array(
+      '#type' => 'checkbox',
+      '#title' => t('Require email'),
+      '#description' => t('Require user entering email after successful user login if email hasn\'t been set yet.'),
+      '#default_value' => variable_get('csna_require_email', TRUE),
+    );
+
+    return system_settings_form($form);
+  }
+}

+<?php
+/**
+ * @file
+ * API documentation for the Chinese Social Networks Authentication module.
+ */
+
+/**
+ * Define Authentication providers available to the CSNA framework.
+ *
+ * The Chinese Social Networks Authentication (CSNA) module uses this hook to
+ * gather information on provider authentication methods defined by enabled
+ * modules. These methods depend on a variety of properties used by CSNA to
+ * integrate with third party API providers based on the OAuth protocol.
+ *
+ * By default CSNA supports the following Authentication API providers through
+ * sub-modules:
+ *   - Sina weibo （新浪微博）, Chinese twitter like website.
+ *   - Tencent （QQ）, biggest Chinese IM provider.
+ *   - Renren（人人网）, biggest Chinese facebook like website.
+ *   - Kaixin001（开心网）, secondary Chinese facebook like website.
+ *
+ * This hook allows other modules to define custom authentication third party
+ * API providers by defining all the necessary information for CSNA's
+ * implementation of the OAuth protocol.
+ *
+ * @return array
+ *   An array of providers keyed by provider_id with the following properties:
+ *   - title: The title or name of the defined provider.
+ *   - description: Description text to appear on the admin page for the
+ *     configuration of the required parameters for this specific provider,
+ *     such as Authentication API KEY or Password.
+ *   - display_title: The title to be displayed in the list of links of
+ *     providers returned by theme_csna_providers, which displays in the user
+ *     login/registration forms and block. For better usage, HTML is allowed
+ *     for this property, for example to display an image or logo.
+ *   - type: string identifying the type of OAuth protocol used. By default,
+ *     CSNA provides a constant for 'oauth2', see CSNA_OAUTH2, but any other
+ *     custom OAuth type could also be used and provided for this property.
+ *   - authorize_uri: The URL used by providers to authenticate users through
+ *     the OAuth protocol.
+ *   - access_token_uri: The URL used by CSNA to get the authentication token
+ *     returned by providers if operation was successful.
+ *   - info_uri: This URL allows capturing User's information from third party
+ *     authentication providers, such as username, or other useful information.
+ *
+ * @see csna_providers()
+ * @see csna_weibo_csna_provider_info()
+ */
+function hook_csna_provider_info() {
+  // Example taken from the csna_weibo sub-module.
+  $providers = array();
+
+  $providers['weibo'] = array(
+    'title' => t('Weibo Sina'),
+    'description' => t('Set your Sina Weibo authorized KEY and SECRET below.'),
+    'display_title' => csna_get_weibo_button_image(),
+    'type' => CSNA_OAUTH2,
+    'authorize_uri' => 'https://api.weibo.com/oauth2/authorize',
+    'access_token_uri' => 'https://api.weibo.com/oauth2/access_token',
+    'info_uri' => 'https://api.weibo.com/2/users/show.json',
+  );
+
+  return $providers;
+}
+
+/**
+ * Allows other modules to alter already defined list of providers.
+ *
+ * Any of the providers and any of their properties or values can be modified
+ * by using an implementation of this hook.
+ *
+ * @param array $providers
+ *   An associative array of providers keyed by the provider_id, as returned by
+ *   the function csna_providers(). See hook_csna_provider_info for a detailed
+ *   list of all the defined and required properties for each provider.
+ *
+ * @see hook_csna_provider_info()
+ * @see csna_providers()
+ */
+function hook_csna_provider_info_alter(&$providers) {
+  if (isset($providers['weibo'])) {
+    $providers['weibo']['display_title'] = t("Login or register with your Sina Weibo account!");
+  }
+}
+
+/**
+ * Define providers custom authentication callback methods.
+ *
+ * The implementation of this hook is usually required when defining a Third
+ * Party authentication OAuth API provider through hook_csna_provider_info.
+ *
+ * This hook callback is executed when returning from provider's API
+ * authentication pages, with information about the operation, such as whether
+ * it was successful or not. In case of success, most providers will return a
+ * token or code that can be further used to verify or obtain user's
+ * information through the $provider['info_uri'] defined URL.
+ *
+ * @param array $provider
+ *   An array of properties for the corresponding provider defined through
+ *   hook_csna_provider_info, see API hooks documentation for more information.
+ * @param array $request
+ *   A PHP predefined variable for HTTP Request variables: $_REQUEST, received
+ *   from the third party authentication provider.
+ *
+ * @return array
+ *   An array of properties including the following keys and values:
+ *   - access_token: The access token returned by the provider through its
+ *     access_token_uri URL to provider further access to user's information if
+ *     authentication was successful.
+ *   - uid: The ID of the user returned from the provider used to load user
+ *     account through user_external_load (see core API).
+ *   - name: The user name returned from the provider used to load user account
+ *     account through user_load_by_name (see core API).
+ *
+ * @see csna_callback()
+ * @see csna_kaixin_csna_provider_callback()
+ */
+function hook_csna_provider_callback($provider, $request) {
+  // Example taken from the csna_kaixin sub-module.
+  if (isset($request['code'])) {
+    $parameters = array(
+      'client_id' => $provider['key'],
+      'client_secret' => $provider['secret'],
+      'grant_type' => 'authorization_code',
+      'redirect_uri' => $provider['callback'],
+      'code' => $request['code'],
+    );
+    $http = drupal_http_request(url($provider['access_token_uri'], array('query' => $parameters)));
+    $data = json_decode($http->data);
+    $http = drupal_http_request(url($provider['info_uri'], array('query' => array('access_token' => $data->access_token))));
+    $info = json_decode($http->data);
+    if (!isset($info->uid)) {
+      return FALSE;
+    }
+    return array(
+      'access_token' => $data->access_token,
+      'uid' => $info->uid,
+      'name' => $info->name,
+    );
+  }
+}

+name = CSNA
+description = Authentication for Chinese Social Networks
+package = Authentication
+core = 7.x
+configure = admin/config/services/csna
+
+; Information added by Drupal.org packaging script on 2015-10-19
+version = "7.x-1.3"
+core = "7.x"
+project = "csna"
+datestamp = "1445231940"
+

+<?php
+
+/**
+ * @file
+ * The Chinese Social Networks Authentication (CSNA) module provides a global
+ * framework and API to allow other modules to define specific authentication
+ * methods from Chinese Social Networks through a supported OAuth protocol.
+ */
+
+define('CSNA_OAUTH2', 'oauth2');
+
+/**
+ * Implements hook_menu().
+ */
+function csna_menu() {
+  $items['csna/%csna_provider'] = array(
+    'title' => 'CSNA Redirect',
+    'page callback' => 'csna_redirect',
+    'page arguments' => array(1),
+    'access callback' => 'user_is_anonymous',
+    'type' => MENU_CALLBACK,
+  );
+
+  $items['csna/%csna_provider/callback'] = array(
+    'title' => 'Authentication callback',
+    'page callback' => 'csna_callback',
+    'page arguments' => array(1),
+    'access callback' => 'user_is_anonymous',
+    'type' => MENU_CALLBACK,
+  );
+
+  $items['csna/%user/complete-register'] = array(
+    'title' => t('Complete register'),
+    'page callback' => 'drupal_get_form',
+    'page arguments' => array('csna_complete_register_form', 1),
+    'access callback' => 'csna_user_edit_access',
+    'access arguments' => array(1),
+    'file' => 'csna.pages.inc',
+  );
+
+  $items['admin/config/services/csna'] = array(
+    'title' => 'Chinese Social Networks Authentication settings (CSNA)',
+    'description' => 'Configure the CSNA key or secrect code settings for third party authentication API providers.',
+    'page callback' => 'drupal_get_form',
+    'page arguments' => array('csna_admin_settings'),
+    'access arguments' => array('administer csna'),
+    'file' => 'csna.admin.inc',
+  );
+
+  return $items;
+}
+
+/**
+ * Check the Provider ID.
+ *
+ * @param string $provider_id
+ *   The Provider ID.
+ *
+ * @return mixed
+ *   A value of $providers[$provider_id] from csna_providers(),
+ *   or FALSE if the value does not exist.
+ */
+function csna_provider_load($provider_id) {
+  $providers = csna_providers();
+  return isset($providers[$provider_id]) ? $providers[$provider_id] : FALSE;
+}
+
+/**
+ * Implements hook_perm().
+ */
+function csna_permission() {
+  return array(
+    'administer csna' => array(
+      'title' => t('Administer CSNA'),
+      'description' => t('Perform administration tasks for CSNA.'),
+    ),
+  );
+}
+
+/**
+ * Implements hook_theme().
+ */
+function csna_theme($existing, $type, $theme, $path) {
+  $providers = csna_providers();
+  return array(
+    'csna_providers' => array(
+      'variables' => array('providers' => $providers),
+    ),
+  );
+}
+
+/**
+ * Menu callback: CSNA Redirect.
+ */
+function csna_redirect($provider) {
+  $parameters = array(
+    'client_id' => $provider['key'],
+    'redirect_uri' => $provider['callback'],
+    'response_type' => 'code',
+  );
+  if ($provider['provider_id'] == 'wechat') {
+    unset($parameters['client_id']);
+    $parameters['appid'] = $provider['key'];
+    $parameters['scope'] = 'snsapi_login';
+  }
+  drupal_goto($provider['authorize_uri'], array('query' => $parameters));
+}
+
+/**
+ * Menu callback: CSNA Callback.
+ */
+function csna_callback($provider) {
+
+  global $user;
+  $data = module_invoke($provider['module'], 'csna_provider_callback', $provider, $_REQUEST);
+
+  // Forcing array format because of Sina weibo will return an Object.
+  if (!is_array($data)) {
+    $data = (array) $data;
+  }
+
+  if (isset($data['access_token'])) {
+    $identity = $provider['provider_id'] . '_' . $data['uid'];
+    $account = user_external_load($identity);
+
+    if (!isset($account->uid)) {
+      $name = $data['name'];
+      $ac = user_load_by_name($name);
+      if ($ac) {
+        $separator = '_';
+        $i = 0;
+        do {
+          $i++;
+          $name = $data['name'] . $separator . $i;
+        } while (user_load_by_name($name));
+      }
+      //User avatar
+      if (isset($data['avatar_link'])) {
+        $avatar_directory = file_default_scheme() . '://' . variable_get('user_picture_path', 'pictures');
+        $avatar = system_retrieve_file($data['avatar_link'], $avatar_directory, TRUE, FILE_EXISTS_RENAME);
+      }
+      $edit = array(
+        'name' => $name,
+        'status' => 1,
+        'picture' =>  isset($avatar->fid) ? $avatar->fid : '',
+      );
+      $account = user_save(NULL, $edit);
+      user_set_authmaps($account, array('authname_csna' => $identity));
+    }
+
+    csna_execute_user_login($account);
+
+    if (variable_get('csna_require_email', TRUE) && empty($account->mail)) {
+      drupal_goto('csna/' . $account->uid . '/complete-register');
+    }
+  }
+  drupal_goto('user');
+}
+
+/**
+ * Helper function for CSNA Callback.
+ *
+ * It executes user login after returning from provider's authentication page.
+ * If no valid account is found or authentication with providers failed, this
+ * function returns FALSE.
+ */
+function csna_execute_user_login($account) {
+  if (empty($account) OR !isset($account->uid)) {
+    return FALSE;
+  }
+  $form_state['uid'] = $account->uid;
+  user_login_submit(array(), $form_state);
+  return TRUE;
+}
+
+/**
+ * Implements hook_form_alter().
+ */
+function csna_form_alter(&$form, &$form_state, $form_id) {
+  if ($form_id == 'user_login' || $form_id == 'user_login_block' || $form_id == 'user_register_form') {
+    $providers = csna_providers();
+
+    // if admin form
+    if (empty($form['administer_users']['#value'])) {
+      if (isset($form['submitted']['user_login_block']['#suffix']) && !empty($form['submitted']['user_login_block']['#suffix'])) {
+        $form['submitted']['user_login_block']['#suffix'] .= theme('csna_providers', array('providers' => $providers));
+      }
+      else {
+        $form['submitted']['user_login_block']['#suffix'] = theme('csna_providers', array('providers' => $providers));
+      }
+    }
+  }
+}
+
+/**
+ * Returns an array of OAuth Third Party authentication providers.
+ *
+ * CSNA's API Framework provides a method for any enabled module to define
+ * additional authentication providers. This function gathers information on
+ * provider authentication methods defined by enabled modules.
+ *
+ * @return array
+ *   An associative array of providers keyed by the provider_id.
+ *
+ * @see hook_csna_provider_info()
+ */
+function csna_providers($valid = FALSE) {
+  static $providers;
+
+  if (!isset($providers)) {
+    $providers = array();
+
+    // Build the providers array, including module names for the purpose
+    // of including files if necessary.
+    // An associative array of providers objects keyed by the provider_id.
+    foreach (module_implements('csna_provider_info') as $module) {
+      foreach (module_invoke($module, 'csna_provider_info') as $provider_id => $provider) {
+        $provider['provider_id'] = $provider_id;
+        $provider['module'] = $module;
+        $provider['key'] = variable_get('csna_' . $provider_id . '_key', '');
+        $provider['secret'] = variable_get('csna_' . $provider_id . '_secret', '');
+        $providers[$provider_id] = $provider;
+        if ($valid && (empty($provider['key']) || empty($provider['secret']))) {
+          unset($providers[$provider_id]);
+        }
+      }
+    }
+
+    drupal_alter('csna_provider_info', $providers);
+
+    foreach ($providers as $provider_id => & $provider) {
+      $defaults = array(
+        'provider_id' => $provider_id,
+        'base' => $provider_id,
+        'title' => '',
+        'description' => '',
+        'active' => FALSE,
+        'callback' => url('csna/' . $provider_id . '/callback', array('absolute' => TRUE)),
+        'file' => '',
+      );
+
+      $provider += $defaults;
+
+      // Default the display title to the title if necessary.  The display
+      // title is used in instances where the login method has an official
+      // name but a different method of display on selection forms (like some
+      // text and a set of images).
+      if (empty($provider['display_title'])) {
+        $provider['display_title'] = $provider['title'];
+      }
+
+      // Default the short title to the title if necessary.  Like the display
+      // title, the short title is an alternate way of displaying the title to
+      // the user consisting of plain text but with unnecessary information
+      // stripped off.
+      if (empty($provider[$provider_id]['short_title'])) {
+        $provider['short_title'] = $provider['title'];
+      }
+    }
+  }
+
+  return $providers;
+}
+
+/**
+ * Render a themed list of links to providers authorized login URL pages.
+ *
+ * @param array $providers
+ *   An associative array of providers keyed by the provider_id, as returned by
+ *   the function csna_providers().
+ *   Mostly the display_title property of providers is used in this function
+ *   to display a custom title, name or even HTML to be linked to corresponding
+ *   provider's authorized login URL page. See API documentation for more
+ *   information on providers available properties.
+ *
+ * @see csna_providers()
+ * @see hook_csna_provider_info()
+ */
+function theme_csna_providers($vars) {
+  $providers = $vars['providers'];
+  $items = array();
+  foreach ($providers as $provider_id => $provider) {
+    $items[] = array(
+      'data' => l($provider['display_title'], 'csna/' . $provider_id, array('html' => TRUE)),
+      'id' => 'csna_provider_' . $provider_id,
+    );
+  }
+
+  return theme('item_list', array('items' => $items, 'attributes' => array('class' => 'csna-items')));
+}
+
+/**
+ * Access callback for CSNA complete register.
+ *
+ * @param $account
+ */
+function csna_user_edit_access($account) {
+  return $GLOBALS['user']->uid == $account->uid;
+}

+<?php
+
+/**
+ * @file
+ * Menu callbacks for the CSNA module.
+ */
+
+/**
+ * Menu callback: Set email address and password after successful user login
+ */
+function csna_complete_register_form($form, &$form_state, $account) {
+  global $user;
+
+  if ($account->mail) {
+    drupal_goto('user');
+  }
+
+  $form_state['user'] = $account;
+
+  $form['mail'] = array(
+    '#type' => 'textfield',
+    '#title' => t('E-mail address'),
+    '#maxlength' => EMAIL_MAX_LENGTH,
+    '#description' => t('A valid e-mail address. All e-mails from the system will be sent to this address. The e-mail address is not made public and will only be used if you wish to receive a new password or wish to receive certain news or notifications by e-mail.'),
+    '#required' => TRUE,
+  );
+
+  $form['pass'] = array(
+    '#type' => 'password_confirm',
+    '#size' => 25,
+    '#description' => t('Provide a password for the new account in both fields.'),
+    '#required' => TRUE,
+  );
+
+  $form['submit'] = array(
+    '#type' => 'submit',
+    '#value' => t('Save'),
+  );
+
+  return $form;
+}
+
+function csna_complete_register_form_validate($form, &$form_state) {
+  $account = $form_state['user'];
+
+  // Trim whitespace from mail, to prevent confusing 'e-mail not valid'
+  // warnings often caused by cutting and pasting.
+  $mail = trim($form_state['values']['mail']);
+  form_set_value($form['mail'], $mail, $form_state);
+
+  // Validate the e-mail address, and check if it is taken by an existing user.
+  if ($error = user_validate_mail($form_state['values']['mail'])) {
+    form_set_error('mail', $error);
+  }
+  elseif ((bool) db_select('users')->fields('users', array('uid'))->condition('uid', $account->uid, '<>')->condition('mail', db_like($form_state['values']['mail']), 'LIKE')->range(0, 1)->execute()->fetchField()) {
+    form_set_error('mail', t('The e-mail address %email is already taken.', array('%email' => $form_state['values']['mail'])));
+  }
+}
+
+function csna_complete_register_form_submit($form, &$form_state) {
+  $account = $form_state['user'];
+
+  $edit = array(
+    'mail' => $form_state['values']['mail'],
+    'pass' => $form_state['values']['pass'],
+  );
+
+  user_save($account, $edit);
+}
+

+name = CSNA Kaixin
+description = Provide authentication integration for Kaixin.
+package = Authentication
+core = 7.x
+dependencies[] = csna
+configure = admin/config/services/csna
+
+; Information added by Drupal.org packaging script on 2015-10-19
+version = "7.x-1.3"
+core = "7.x"
+project = "csna"
+datestamp = "1445231940"
+

+<?php
+
+/**
+ * @file
+ * Uninstall functions for the CSNA Kaixin module.
+ */
+
+/**
+ * Implements hook_uninstall().
+ */
+function csna_kaixin_uninstall() {
+  variable_del('csna_kaixin_key');
+  variable_del('csna_kaixin_secret');
+}

+<?php
+
+/**
+ * @file
+ * The CSNA Kaixin module is a sub-module of the Chinese Social Networks
+ * Authentication (CSNA) framework allowing integration with the Kaixin OAuth
+ * protocol for Authentication/Login.
+ */
+
+/**
+ * Implements hook_csna_provider_info().
+ */
+function csna_kaixin_csna_provider_info() {
+  $providers = array();
+  $providers['kaixin'] = array(
+    'title' => t('Kaixin'),
+    'description' => t('Set your <strong>Kaixin authorized KEY</strong> and <strong>SECRET</strong> below.<br/>If you want to use an API key, you can get one at the !keylink.', array('!keylink' => l(t('Kaixin API website'), 'http://open.kaixin001.com/', array('attributes' => array('target' => '_blank'))))),
+    'display_title' => csna_get_kaixin_button_image(),
+    'authorize_uri' => 'http://api.kaixin001.com/oauth2/authorize',
+    'access_token_uri' => 'http://api.kaixin001.com/oauth2/access_token',
+    'info_uri' => 'https://api.kaixin001.com/users/me.json',
+  );
+  return $providers;
+}
+
+/**
+ * Helper function for returning a themed image for the Kaixin display title.
+ */
+function csna_get_kaixin_button_image() {
+  $image_arr = array(
+    'path' => drupal_get_path('module', 'csna_kaixin') . '/kaixin_135x24.png',
+    'title' => t('Sign in with Kaixin'),
+    'alt' => t('Sign in with Kaixin'),
+  );
+  return theme('image', $image_arr);
+}
+
+/**
+ * Implements hook_csna_provider_callback().
+ */
+function csna_kaixin_csna_provider_callback($provider, $request) {
+  if (isset($request['code'])) {
+    $parameters = array(
+      'client_id' => $provider['key'],
+      'client_secret' => $provider['secret'],
+      'grant_type' => 'authorization_code',
+      'redirect_uri' => $provider['callback'],
+      'code' => $request['code'],
+    );
+    $http = drupal_http_request(url($provider['access_token_uri'], array('query' => $parameters)));
+    $data = json_decode($http->data);
+    $http = drupal_http_request(url($provider['info_uri'], array('query' => array('access_token' => $data->access_token))));
+    $info = json_decode($http->data);
+    if (!isset($info->uid)) {
+      return FALSE;
+    }
+    return array(
+      'access_token' => $data->access_token,
+      'uid' => $info->uid,
+      'name' => $info->name,
+    );
+  }
+}

+name = CSNA QQ
+description = Provide authentication integration for QQ.
+package = Authentication
+core = 7.x
+dependencies[] = csna
+configure = admin/config/services/csna
+
+; Information added by Drupal.org packaging script on 2015-10-19
+version = "7.x-1.3"
+core = "7.x"
+project = "csna"
+datestamp = "1445231940"
+

+<?php
+
+/**
+ * @file
+ * uninstall functions for the CSNA QQ module.
+ */
+
+/**
+ * Implements hook_uninstall().
+ */
+function csna_qq_uninstall() {
+  variable_del('csna_qq_key');
+  variable_del('csna_qq_secret');
+}

+<?php
+
+/**
+ * @file
+ * The CSNA QQ module is a sub-module of the Chinese Social Networks
+ * Authentication (CSNA) framework allowing integration with the QQ OAuth
+ * protocol for Authentication/Login.
+ */
+
+/**
+ * Implements hook_csna_provider_info().
+ */
+function csna_qq_csna_provider_info() {
+  $providers = array();
+
+  $providers['qq'] = array(
+    'title' => t('QQ'),
+    'description' => t('Set your <strong>QQ authorized KEY</strong> and <strong>SECRET</strong> below.<br/>If you want to use an API key, you can get one at the !keylink.', array('!keylink' => l(t('QQ API website'), 'http://connect.qq.com/', array('attributes' => array('target' => '_blank'))))),
+    'display_title' => csna_get_qq_button_image(),
+    'type' => CSNA_OAUTH2,
+    'authorize_uri' => 'https://graph.qq.com/oauth2.0/authorize',
+    'access_token_uri' => 'https://graph.qq.com/oauth2.0/token',
+    'info_uri' => 'https://graph.qq.com/user/get_user_info',
+  );
+
+  return $providers;
+}
+
+/**
+ * Helper function for returning a themed image for the QQ display title.
+ */
+function csna_get_qq_button_image() {
+  $image_arr = array(
+    'path' => drupal_get_path('module', 'csna_qq') . '/qq_120x24.png',
+    'title' => t('Sign in with QQ'),
+    'alt' => t('Sign in with QQ'),
+  );
+  return theme('image', $image_arr);
+}
+
+/**
+ * Implements hook_csna_provider_callback().
+ */
+function csna_qq_csna_provider_callback($provider, $request) {
+  if (isset($request['code'])) {
+    $parameters = array(
+      'client_id' => $provider['key'],
+      'client_secret' => $provider['secret'],
+      'grant_type' => 'authorization_code',
+      'redirect_uri' => $provider['callback'],
+      'code' => $request['code'],
+    );
+
+    $param_data = array(
+      'method' => 'POST',
+      'data' => drupal_http_build_query($parameters),
+    );
+
+    $http = drupal_http_request(url($provider['access_token_uri'], array('query' => $parameters)), $param_data);
+    $data = explode('&', $http->data);
+    $data = explode('=', reset($data));
+    $http = drupal_http_request('https://graph.qq.com/oauth2.0/me?' . $http->data);
+    preg_match('/\{[^\}]*\}/', $http->data, $obj);
+    $openid = json_decode($obj[0]);
+    $http   = drupal_http_request(url($provider['info_uri'], array(
+      'query' => array(
+        'access_token' => $data[1],
+        'oauth_consumer_key' => $provider['key'],
+        'openid' => $openid->openid,))));
+    $info   = json_decode($http->data);
+    return array(
+      'access_token' => $data[1],
+      'uid' => $openid->openid,
+      'name' => $info->nickname,
+      'avatar_link' => $info->figureurl_qq_2,
+    );
+  }
+}

+name = CSNA Renren
+description = Provide authentication integration for Renren.
+package = Authentication
+core = 7.x
+dependencies[] = csna
+configure = admin/config/services/csna
+
+; Information added by Drupal.org packaging script on 2015-10-19
+version = "7.x-1.3"
+core = "7.x"
+project = "csna"
+datestamp = "1445231940"
+

+<?php
+
+/**
+ * @file
+ * uninstall functions for the CSNA Renren module.
+ */
+
+/**
+ * Implements hook_uninstall().
+ */
+function csna_renren_uninstall() {
+  variable_del('csna_renren_key');
+  variable_del('csna_renren_secret');
+}

+<?php
+
+/**
+ * @file
+ * The CSNA Renren module is a sub-module of the Chinese Social Networks
+ * Authentication (CSNA) framework allowing integration with the Renren OAuth
+ * protocol for Authentication/Login.
+ */
+
+/**
+ * Implements hook_csna_provider_info().
+ */
+function csna_renren_csna_provider_info() {
+  $providers = array();
+
+  $providers['renren'] = array(
+    'title' => t('Renren'),
+    'description' => t('Set your <strong>Renren authorized KEY</strong> and <strong>SECRET</strong> below.<br/>If you want to use an API key, you can get one at the !keylink.', array('!keylink' => l(t('Renren API website'), 'http://dev.renren.com/website', array('attributes' => array('target' => '_blank'))))),
+    'display_title' => csna_get_renren_button_image(),
+    'authorize_uri' => 'https://graph.renren.com/oauth/authorize',
+    'access_token_uri' => 'https://graph.renren.com/oauth/token',
+    'active' => TRUE,
+  );
+
+  return $providers;
+}
+
+/**
+ * Helper function for returning a themed image for the Renren display title.
+ */
+function csna_get_renren_button_image() {
+  $image_arr = array(
+    'path' => drupal_get_path('module', 'csna_renren') . '/renren_133x28.png',
+    'title' => t('Sign in with Renren'),
+    'alt' => t('Sign in with Renren'),
+  );
+  return theme('image', $image_arr);
+}
+
+/**
+ * Implements hook_csna_provider_callback().
+ */
+function csna_renren_csna_provider_callback($provider, $request) {
+  if (isset($request['code'])) {
+    $parameters = array(
+      'client_id' => $provider['key'],
+      'client_secret' => $provider['secret'],
+      'grant_type' => 'authorization_code',
+      'redirect_uri' => $provider['callback'],
+      'code' => $request['code'],
+    );
+
+    $param_data = array(
+      'method' => 'POST',
+      'data' => drupal_http_build_query($parameters),
+    );
+
+    $http = drupal_http_request(url($provider['access_token_uri'], array('query' => $parameters)), $param_data);
+    $data = json_decode($http->data);
+    if (!isset($data->user->id)) {
+      return FALSE;
+    }
+    return array(
+      'access_token' => $data->access_token,
+      'uid' => $data->user->id,
+      'name' => $data->user->name,
+    );
+  }
+}

+name = CSNA Wechat
+description = Provide authentication integration for Wechat.
+package = Authentication
+core = 7.x
+dependencies[] = csna
+configure = admin/config/services/csna
+
+; Information added by Drupal.org packaging script on 2015-10-19
+version = "7.x-1.3"
+core = "7.x"
+project = "csna"
+datestamp = "1445231940"
+

+<?php
+
+/**
+ * @file
+ * uninstall functions for the CSNA Wechat module.
+ */
+
+/**
+ * Implements hook_uninstall().
+ */
+function csna_wechat_uninstall() {
+  variable_del('csna_wechat_key');
+  variable_del('csna_wechat_secret');
+}

+<?php
+
+/**
+ * @file
+ * The CSNA Wechat module is a sub-module of the Chinese Social Networks
+ * Authentication (CSNA) framework allowing integration with the Wechat OAuth
+ * protocol for Authentication/Login.
+ */
+
+/**
+ * Implements hook_csna_provider_info().
+ */
+function csna_wechat_csna_provider_info() {
+  $providers = array();
+
+  $providers['wechat'] = array(
+    'title' => t('Wechat'),
+    'description' => t('Set your <strong>Wechat authorized KEY</strong> and <strong>SECRET</strong> below.<br/>If you want to use an API key, you can get one at the !keylink.', array('!keylink' => l(t('Wechat API website'), 'https://open.weixin.qq.com/', array('attributes' => array('target' => '_blank'))))),
+    'display_title' => csna_get_wechat_button_image(),
+    'type' => CSNA_OAUTH2,
+    'authorize_uri' => 'https://open.weixin.qq.com/connect/qrconnect',
+    'access_token_uri' => 'https://api.weixin.qq.com/sns/oauth2/access_token',
+    'info_uri' => 'https://api.weixin.qq.com/sns/userinfo',
+  );
+
+  return $providers;
+}
+
+/**
+ * Helper function for returning a themed image for the Wechat display title.
+ */
+function csna_get_wechat_button_image() {
+  $image_arr = array(
+    'path' => drupal_get_path('module', 'csna_wechat') . '/wechat_120x24.png',
+    'title' => t('Sign in with Wechat'),
+    'alt' => t('Sign in with Wechat'),
+  );
+  return theme('image', $image_arr);
+}
+
+/**
+ * Implements hook_csna_provider_callback().
+ */
+function csna_wechat_csna_provider_callback($provider, $request) {
+  if (isset($request['code'])) {
+    $parameters = array(
+      'appid' => $provider['key'],
+      'secret' => $provider['secret'],
+      'grant_type' => 'authorization_code',
+      'code' => $request['code'],
+    );
+
+    $param_data = array(
+      'method' => 'POST',
+      'data' => drupal_http_build_query($parameters),
+    );
+
+    $http = drupal_http_request(url($provider['access_token_uri'], array('query' => $parameters)), $param_data);
+    $data = json_decode($http->data);
+    $http = drupal_http_request(url($provider['info_uri'], array('query' => array('access_token' => $data->access_token, 'openid' => $data->openid))));
+    $info = json_decode($http->data);
+    if (!isset($info->openid)) {
+      return FALSE;
+    }
+    return array(
+      'access_token' => $data->access_token,
+      'uid' => $info->openid,
+      'name' => $info->nickname,
+    );
+  }
+}

+name = CSNA Weibo
+description = Provide authentication integration for Weibo.
+package = Authentication
+core = 7.x
+dependencies[] = csna
+configure = admin/config/services/csna
+
+; Information added by Drupal.org packaging script on 2015-10-19
+version = "7.x-1.3"
+core = "7.x"
+project = "csna"
+datestamp = "1445231940"
+

+<?php
+
+/**
+ * @file
+ * uninstall functions for the CSNA Weibo module.
+ */
+
+/**
+ * Implements hook_uninstall().
+ */
+function csna_weibo_uninstall() {
+  variable_del('csna_weibo_key');
+  variable_del('csna_weibo_secret');
+}

+<?php
+/**
+ * @file
+ * The CSNA Weibo module is a sub-module of the Chinese Social Networks
+ * Authentication (CSNA) framework allowing integration with the Weibo OAuth
+ * protocol for Authentication/Login.
+ */
+
+/**
+ * Implements hook_csna_provider_info().
+ */
+function csna_weibo_csna_provider_info() {
+  $providers = array();
+
+  $providers['weibo'] = array(
+    'title' => t('Weibo Sina'),
+    'description' => t('Set your <strong>Sina Weibo authorized KEY</strong> and <strong>SECRET</strong> below.<br/>If you want to use an API key, you can get one at the !keylink.', array('!keylink' => l(t('Sina Weibo API website'), 'http://open.weibo.com/', array('attributes' => array('target' => '_blank'))))),
+    'display_title' => csna_get_weibo_button_image(),
+    'type' => CSNA_OAUTH2,
+    'authorize_uri' => 'https://api.weibo.com/oauth2/authorize',
+    'access_token_uri' => 'https://api.weibo.com/oauth2/access_token',
+    'info_uri' => 'https://api.weibo.com/2/users/show.json',
+  );
+
+  return $providers;
+}
+
+/**
+ * Helper function for returning a themed image for the Weibo display title.
+ */
+function csna_get_weibo_button_image() {
+  $image_arr = array(
+    'path' => drupal_get_path('module', 'csna_weibo') . '/weibo_126x24.png',
+    'title' => t('Sign in with Weibo'),
+    'alt' => t('Sign in with Weibo'),
+  );
+  return theme('image', $image_arr);
+}
+
+/**
+ * Implements hook_csna_provider_callback().
+ */
+function csna_weibo_csna_provider_callback($provider, $request) {
+  if (isset($request['code'])) {
+    $parameters = array(
+      'client_id' => $provider['key'],
+      'client_secret' => $provider['secret'],
+      'grant_type' => 'authorization_code',
+      'redirect_uri' => $provider['callback'],
+      'code' => $request['code'],
+    );
+
+    $param_data = array(
+      'method' => 'POST',
+      'data' => drupal_http_build_query($parameters),
+    );
+
+    $http = drupal_http_request(url($provider['access_token_uri'], array('query' => $parameters)), $param_data);
+    $data = json_decode($http->data);
+    $http = drupal_http_request(url($provider['info_uri'], array('query' => array('access_token' => $data->access_token, 'uid' => $data->uid))));
+    $info = json_decode($http->data);
+    if (!isset($info->id)) {
+      return FALSE;
+    }
+    return array(
+      'access_token' => $data->access_token,
+      'uid' => $info->id,
+      'name' => $info->name,
+      'avatar_link' => $info->avatar_large,
+    );
+  }
+}

+csna_require_email: true
+user_picture_path: pictures

+<?php
+/**
+ * @file
+ * API documentation for the Chinese Social Networks Authentication module.
+ */
+
+use Drupal\core\Url;
+use GuzzleHttp\Exception\RequestException;
+
+/**
+ * Define Authentication providers available to the CSNA framework.
+ *
+ * The Chinese Social Networks Authentication (CSNA) module uses this hook to
+ * gather information on provider authentication methods defined by enabled
+ * modules. These methods depend on a variety of properties used by CSNA to
+ * integrate with third party API providers based on the OAuth protocol.
+ *
+ * By default CSNA supports the following Authentication API providers through
+ * sub-modules:
+ *   - Sina weibo （新浪微博）, Chinese twitter like website.
+ *   - Tencent （QQ）, biggest Chinese IM provider.
+ *   - Renren（人人网）, biggest Chinese facebook like website.
+ *   - Kaixin001（开心网）, secondary Chinese facebook like website.
+ *
+ * This hook allows other modules to define custom authentication third party
+ * API providers by defining all the necessary information for CSNA's
+ * implementation of the OAuth protocol.
+ *
+ * @return array
+ *   An array of providers keyed by provider_id with the following properties:
+ *   - title: The title or name of the defined provider.
+ *   - description: Description text to appear on the admin page for the
+ *     configuration of the required parameters for this specific provider,
+ *     such as Authentication API KEY or Password.
+ *   - display_title: The title to be displayed in the list of links of
+ *     providers returned by theme_csna_providers, which displays in the user
+ *     login/registration forms and block. For better usage, HTML is allowed
+ *     for this property, for example to display an image or logo.
+ *   - type: string identifying the type of OAuth protocol used. By default,
+ *     CSNA provides a constant for 'oauth2', see CSNA_OAUTH2, but any other
+ *     custom OAuth type could also be used and provided for this property.
+ *   - authorize_uri: The URL used by providers to authenticate users through
+ *     the OAuth protocol.
+ *   - access_token_uri: The URL used by CSNA to get the authentication token
+ *     returned by providers if operation was successful.
+ *   - info_uri: This URL allows capturing User's information from third party
+ *     authentication providers, such as username, or other useful information.
+ *
+ * @see csna_providers()
+ * @see csna_weibo_csna_provider_info()
+ */
+function hook_csna_provider_info() {
+  // Example taken from the csna_weibo sub-module.
+  $providers = array();
+
+  $providers['weibo'] = array(
+    'title' => t('Weibo Sina'),
+    'description' => t('Set your Sina Weibo authorized KEY and SECRET below.'),
+    'display_title' => csna_get_weibo_button_image(),
+    'type' => CSNA_OAUTH2,
+    'authorize_uri' => 'https://api.weibo.com/oauth2/authorize',
+    'access_token_uri' => 'https://api.weibo.com/oauth2/access_token',
+    'info_uri' => 'https://api.weibo.com/2/users/show.json',
+  );
+
+  return $providers;
+}
+
+/**
+ * Allows other modules to alter already defined list of providers.
+ *
+ * Any of the providers and any of their properties or values can be modified
+ * by using an implementation of this hook.
+ *
+ * @param array $providers
+ *   An associative array of providers keyed by the provider_id, as returned by
+ *   the function csna_providers(). See hook_csna_provider_info for a detailed
+ *   list of all the defined and required properties for each provider.
+ *
+ * @see hook_csna_provider_info()
+ * @see csna_providers()
+ */
+/*function hook_csna_provider_info_alter(&$providers) {
+  if (isset($providers['weibo'])) {
+    $providers['weibo']['display_title'] = t("Login or register with your Sina Weibo account!");
+  }
+}
+*/
+/**
+ * Define providers custom authentication callback methods.
+ *
+ * The implementation of this hook is usually required when defining a Third
+ * Party authentication OAuth API provider through hook_csna_provider_info.
+ *
+ * This hook callback is executed when returning from provider's API
+ * authentication pages, with information about the operation, such as whether
+ * it was successful or not. In case of success, most providers will return a
+ * token or code that can be further used to verify or obtain user's
+ * information through the $provider['info_uri'] defined URL.
+ *
+ * @param array $provider
+ *   An array of properties for the corresponding provider defined through
+ *   hook_csna_provider_info, see API hooks documentation for more information.
+ * @param array $request
+ *   A PHP predefined variable for HTTP Request variables: $_REQUEST, received
+ *   from the third party authentication provider.
+ *
+ * @return array
+ *   An array of properties including the following keys and values:
+ *   - access_token: The access token returned by the provider through its
+ *     access_token_uri URL to provider further access to user's information if
+ *     authentication was successful.
+ *   - uid: The ID of the user returned from the provider used to load user
+ *     account through user_external_load (see core API).
+ *   - name: The user name returned from the provider used to load user account
+ *     account through user_load_by_name (see core API).
+ *
+ * @see csna_callback()
+ * @see csna_kaixin_csna_provider_callback()
+ */
+function hook_csna_provider_callback($provider, $request) {
+  // Example taken from the csna_kaixin sub-module.
+  if (isset($request['code'])) {
+    $parameters = array(
+      'client_id' => $provider['key'],
+      'client_secret' => $provider['secret'],
+      'grant_type' => 'authorization_code',
+      'redirect_uri' => $provider['callback'],
+      'code' => $request['code'],
+    );
+    $client =  \Drupal::httpClient();
+    $request = $client->request('GET', Url::fromUri($provider['access_token_uri'], array('query' => $parameters)));
+    $response_data = '';
+    try {
+      $response = $client->send($request);
+      // Expected result.
+      $response_data = $response->getBody();
+    }
+    catch (RequestException $e) {
+    }
+    $data = json_decode($response_data);
+    $request = $client->request('GET', Url::fromUri($provider['info_uri'], array('query' => array('access_token' => $data->access_token))));
+    try {
+      $response = $client->send($request);
+      // Expected result.
+      $response_data = $response->getBody();
+    }
+    catch (RequestException $e) {
+    }
+    $info = json_decode($response_data);
+    if (!isset($info->uid)) {
+      return FALSE;
+    }
+    return array(
+      'access_token' => $data->access_token,
+      'uid' => $info->uid,
+      'name' => $info->name,
+    );
+  }
+  return FALSE;
+}

+name: 'CSNA'
+type: module
+description: 'Authentication for Chinese Social Networks.'
+package: Authentication
+configure: csna.settings
+core: 8.x

+csna.admin:
+  title: 'Chinese Social Networks Authentication settings (CSNA)'
+  description: 'Configure the CSNA key or secrect code settings for third party authentication API providers.'
+  parent: system.admin_config_development
+  route_name: csna.config
+  weight: 100
+csna.callback:
+  title: 'Authentication callback'
+  route_name: csna.callback

+<?php
+
+use Drupal\Core\Url;
+use Drupal\Core\Form\FormStateInterface;
+
+/**
+ * Returns an array of OAuth Third Party authentication providers.
+ *
+ * CSNA's API Framework provides a method for any enabled module to define
+ * additional authentication providers. This function gathers information on
+ * provider authentication methods defined by enabled modules.
+ *
+ * @param bool $valid
+ * @return array An associative array of providers keyed by the provider_id.
+ * An associative array of providers keyed by the provider_id.
+ * @see hook_csna_provider_info()
+ */
+function csna_providers($valid = FALSE) {
+    static $providers;
+
+    if (!isset($providers)) {
+        $providers = array();
+
+        // Build the providers array, including module names for the purpose
+        // of including files if necessary.
+        // An associative array of providers objects keyed by the provider_id.
+        $module_handler = \Drupal::moduleHandler();
+
+        foreach ($module_handler->getImplementations('csna_provider_info') as $module) {
+            foreach ($module_handler->invoke($module, 'csna_provider_info') as $provider_id => $provider) {
+                $config = \Drupal::config('csna.' . $provider);
+                $provider['provider_id'] = $provider_id;
+                $provider['module'] = $module;
+                $provider['key'] = $config->get('csna_' . $provider_id . '_key');
+                $provider['secret'] = $config->get('csna_' . $provider_id . '_secret');
+                $providers[$provider_id] = $provider;
+                if ($valid && (empty($provider['key']) || empty($provider['secret']))) {
+                    unset($providers[$provider_id]);
+                }
+            }
+        }
+
+        $module_handler->alter('csna_provider_info', $providers);
+
+        foreach ($providers as $provider_id => & $provider) {
+            $defaults = array(
+                'provider_id' => $provider_id,
+                'base' => $provider_id,
+                'title' => '',
+                'description' => '',
+                'active' => FALSE,
+                'callback' => Url::fromRoute('csna.callback',array('csna_provider' => $provider_id), array('absolute' => TRUE)),
+                'file' => '',
+            );
+
+            $provider += $defaults;
+
+            // Default the display title to the title if necessary.  The display
+            // title is used in instances where the login method has an official
+            // name but a different method of display on selection forms (like some
+            // text and a set of images).
+            if (empty($provider['display_title'])) {
+                $provider['display_title'] = $provider['title'];
+            }
+
+            // Default the short title to the title if necessary.  Like the display
+            // title, the short title is an alternate way of displaying the title to
+            // the user consisting of plain text but with unnecessary information
+            // stripped off.
+            if (empty($provider[$provider_id]['short_title'])) {
+                $provider['short_title'] = $provider['title'];
+            }
+        }
+    }
+
+    return $providers;
+}
+
+
+function csna_form_alter(&$form, \Drupal\Core\Form\FormStateInterface $form_state, $form_id) {
+    //$form_id == 'user_login' || $form_id == 'user_login_block' || $form_id == 'user_register_form'
+    if ( $form_id == 'user_login_form' ) {
+        $providers = csna_providers();
+
+        // if admin form
+        if (empty($form['administer_users']['#value'])) {
+            $csna_provider = array(
+                '#theme' => 'csna_providers',
+                '#attributes' => array('providers' => $providers),
+            );
+
+            if (isset($form['submitted']['user_login_block']['#suffix']) && !empty($form['submitted']['user_login_block']['#suffix'])) {
+                $form['submitted']['user_login_block']['#suffix'] .= drupal_render($csna_provider);
+            }
+            else {
+                $form['submitted']['user_login_block']['#suffix'] = drupal_render($csna_provider);
+            }
+        }
+    }
+    dpm($form_id);
+   // dpm($form);
+}
+/**
+ * Implements hook_theme().
+ */
+function csna_theme($existing, $type, $theme, $path) {
+    $providers = csna_providers();
+    return array(
+        'csna_providers' => array(
+            'variables' => array('providers' => $providers),
+        ),
+    );
+}
+
+
+
+/**
+ * Render a themed list of links to providers authorized login URL pages.
+ *
+ * @param array $providers
+ *   An associative array of providers keyed by the provider_id, as returned by
+ *   the function csna_providers().
+ *   Mostly the display_title property of providers is used in this function
+ *   to display a custom title, name or even HTML to be linked to corresponding
+ *   provider's authorized login URL page. See API documentation for more
+ *   information on providers available properties.
+ *
+ * @see csna_providers()
+ * @see hook_csna_provider_info()
+ */
+function template_preprocess_csna_providers(&$vars) {
+    dpm($vars);
+    $providers = $vars['providers'];
+    $items = array();
+    foreach ($providers as $provider_id => $provider) {
+        $items[] = array(
+            'data' => \Drupal::l($provider['display_title'], Url::fromRoute('csna.redirect', array('csna_provider' => $provider_id), array('html' => TRUE))),
+            'id' => 'csna_provider_' . $provider_id,
+        );
+    }
+
+    $item_list = array(
+        '#type' => 'item_list',
+        'items' => $items,
+        'attributes' => array('class' => 'csna-items'),
+    );
+    return drupal_render($item_list);
+}

+csna.config:
+  path: '/admin/config/services/csna'
+  defaults:
+    _title: 'Chinese Social Networks Authentication settings (CSNA)'
+    _form: '\Drupal\csna\Form\SettingsForm'
+  options:
+    _admin_route: TRUE
+  requirements:
+    _permission: 'administer site configuration'
+csna.redirect:
+  path: 'csna/{csna_provider}'
+  defaults:
+    _controller: '\Drupal\csna\Controller\CsnaController::csna_redirect'
+    _title: 'Authentication redirect'
+
+csna.callback:
+  path: '/csna/{csna_provider}/callback'
+  defaults:
+    _controller: '\Drupal\csna\Controller\CsnaController::csna_callback'
+    _title: 'Authentication callback'
+  requirements:
+    _access: 'user_is_anonymous'

+csna_qq_key: ''
+csna_qq_secret: ''

+name: 'CSNA QQ'
+type: module
+description: 'Provide authentication integration for QQ.'
+package: Authentication
+dependencies[] : csna
+configure: csna.settings
+core: 8.x

+<?php
+
+use Drupal\Core\Url;
+
+/**
+ * @file
+ * The CSNA QQ module is a sub-module of the Chinese Social Networks
+ * Authentication (CSNA) framework allowing integration with the QQ OAuth
+ * protocol for Authentication/Login.
+ */
+
+/**
+ * Implements hook_csna_provider_info().
+ */
+function csna_qq_csna_provider_info() {
+    $providers = array();
+
+    $providers['qq'] = array(
+        'title' => t('QQ'),
+        'description' => t('Set your <strong>QQ authorized KEY</strong> and <strong>SECRET</strong> below.<br/>If you want to use an API key, you can get one at the !keylink.', array('!keylink' => \Drupal::l(t('QQ API website'), Url::fromUri('http://connect.qq.com/', array('attributes' => array('target' => '_blank')))))),
+        'display_title' => csna_get_qq_button_image(),
+        'type' => CSNA_OAUTH2,
+        'authorize_uri' => 'https://graph.qq.com/oauth2.0/authorize',
+        'access_token_uri' => 'https://graph.qq.com/oauth2.0/token',
+        'info_uri' => 'https://graph.qq.com/user/get_user_info',
+    );
+
+    return $providers;
+}
+
+/**
+ * Helper function for returning a themed image for the QQ display title.
+ */
+function csna_get_qq_button_image() {
+    $image_arr = array(
+        'path' => drupal_get_path('module', 'csna_qq') . '/qq_120x24.png',
+        'title' => t('Sign in with QQ'),
+        'alt' => t('Sign in with QQ'),
+    );
+    //return theme('image', $image_arr);
+    return '';
+}

+<?php
+/**
+ * @file
+ *Contains \Drupal\csna\Controller\CsnaController.
+ */
+
+namespace Drupal\csna\Controller;
+
+use Drupal\Core\Controller\ControllerBase;
+use Symfony\Component\HttpFoundation\RedirectResponse;
+
+class CsnaController extends ControllerBase
+{
+
+    /**
+     * Menu callback: CSNA Redirect.
+     */
+    function csna_redirect( $provider )
+    {
+        $parameters = array(
+            'client_id' => $provider['key'],
+            'redirect_uri' => $provider['callback'],
+            'response_type' => 'code',
+        );
+        if ($provider['provider_id'] == 'wechat') {
+            unset($parameters['client_id']);
+            $parameters['appid'] = $provider['key'];
+            $parameters['scope'] = 'snsapi_login';
+        }
+        return new RedirectResponse(\Drupal::url($provider['authorize_uri'], array('query' => $parameters)));
+    }
+
+    /**
+     * @param $provider
+     */
+    public function csna_callback( $provider )
+    {
+        global $user;
+        $module_handler = \Drupal::moduleHandler();
+        $data = $module_handler->invoke($provider['module'], 'csna_provider_callback', array($provider, $_REQUEST));
+
+        // Forcing array format because of Sina weibo will return an Object.
+        if (!is_array($data)) {
+          $data = (array) $data;
+        }
+
+        if (isset($data['access_token'])) {
+          $identity = $provider['provider_id'] . '_' . $data['uid'];
+          $account = user_external_load($identity);
+
+          if (!isset($account->uid)) {
+            $name = $data['name'];
+            $ac = user_load_by_name($name);
+            if ($ac) {
+              $separator = '_';
+              $i = 0;
+              do {
+                $i++;
+                $name = $data['name'] . $separator . $i;
+              } while (user_load_by_name($name));
+            }
+            //User avatar
+            if (isset($data['avatar_link'])) {
+              $avatar_directory = file_default_scheme() . '://' . variable_get('user_picture_path', 'pictures');
+              $avatar = system_retrieve_file($data['avatar_link'], $avatar_directory, TRUE, FILE_EXISTS_RENAME);
+            }
+            $edit = array(
+                'name' => $name,
+                'status' => 1,
+                'picture' =>  isset($avatar->fid) ? $avatar->fid : '',
+            );
+            $account = user_save(NULL, $edit);
+            user_set_authmaps($account, array('authname_csna' => $identity));
+          }
+
+          csna_execute_user_login($account);
+
+          if (variable_get('csna_require_email', TRUE) && empty($account->mail)) {
+            drupal_goto('csna/' . $account->uid . '/complete-register');
+          }
+        }
+        drupal_goto('user');
+    }
+}
+

+<?php
+
+/**
+ * @file
+ * Contains \Drupal\csna\Form\SettingsForm.
+ */
+
+namespace Drupal\csna\Form;
+
+use Drupal\Core\Form\ConfigFormBase;
+use Symfony\Component\HttpFoundation\Request;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\Core\Url;
+
+/**
+ * Defines a form that configures csna settings.
+ */
+class SettingsForm extends ConfigFormBase {
+  /**
+   * {@inheritdoc}
+   */
+  public function getFormId() {
+    return 'csna_admin_settings_form';
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function getEditableConfigNames() {
+    return [
+      'csna.settings',
+    ];
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildForm(array $form, FormStateInterface $form_state, Request $request = NULL) {
+    $providers = csna_providers();
+    foreach ($providers as $provider_id => $provider) {
+      $config = \Drupal::config('csna.' . $provider);
+      $form[$provider_id] = array(
+          '#type' => 'fieldset',
+          '#title' => $provider['title'],
+          '#description' => $provider['description'],
+      );
+      $form[$provider_id]['csna_' . $provider_id . '_key'] = array(
+          '#type' => 'textfield',
+          '#title' => t('Key'),
+          '#size' => 40,
+          '#maxlength' => 255,
+          '#default_value' => $config->get('csna_' . $provider_id . '_key'),
+      );
+      $form[$provider_id]['csna_' . $provider_id . '_secret'] = array(
+          '#type' => 'textfield',
+          '#title' => t('Secret'),
+          '#size' => 40,
+          '#maxlength' => 255,
+          '#default_value' => $config->get('csna_' . $provider_id . '_secret'),
+      );
+    }
+
+    // If no provider/sub-module was found, provide a default help text.
+    if (!isset($form)) {
+      $form['default_message'] = array(
+          '#markup' => t('<strong>No CSNA third party API provider module has been enabled yet</strong>.<br/>Please enable <strong>at least a CSNA sub-module</strong> or any other <strong>CSNA API provider</strong> from the !modadminlink then feel free to browse this page again.<br/>See more information on !projectlink about <strong>supported providers</strong> and <strong>installation instructions</strong>.', array(
+              '!modadminlink' => \Drupal::l(t('module administration page'), Url::fromRoute('system.modules_list')),
+              '!projectlink' => \Drupal::l(t("module project's page"), Url::fromUri('http://drupal.org/project/csna', array('attributes' => array('target' => '_blank')))),
+          )),
+      );
+      return parent::buildForm($form, $form_state);
+    }
+    else {
+      $config = \Drupal::config('csna.settings');
+      $form['csna_require_email'] = array(
+          '#type' => 'checkbox',
+          '#title' => t('Require email'),
+          '#description' => t('Require user entering email after successful user login if email hasn\'t been set yet.'),
+          '#default_value' => $config->get('csna_require_email'),
+      );
+
+      return parent::buildForm($form, $form_state);
+    }
+  }
+
+
+  /**
+   * {@inheritdoc}
+   */
+  public function submitForm(array &$form, FormStateInterface $form_state) {
+    parent::submitForm($form, $form_state);
+    $providers = csna_providers();
+    foreach ($providers as $provider_id => $provider) {
+      $config_providers = \Drupal::service('config.factory')->getEditable('csna.' . $provider);
+      // Let active plugins save their settings.
+      $config_providers->set('csna_' . $provider_id . '_key', $form_state->getValue('csna_' . $provider_id . '_key'));
+      $config_providers->set('csna_' . $provider_id . '_secret', $form_state->getValue('csna_' . $provider_id . '_secret'));
+      $config_providers->save();
+    }
+    $config_settings = \Drupal::service('config.factory')->getEditable('csna.settings');
+    $config_settings->set('csna_require_email', $form_state->getValue('csna_require_email'));
+    $config_settings->save();
+  }
+}

+<div>
+</div>