Upload logos for groups

1 files changed, 511 insertions, 0 deletions

diff --git a/actions/grouplogo.php b/actions/grouplogo.php
new file mode 100644
index 000000000..393070d5d
--- /dev/null
+++ b/actions/grouplogo.php
@@ -0,0 +1,511 @@
+<?php
+/**
+ * Laconica, the distributed open-source microblogging tool
+ *
+ * Upload an avatar
+ *
+ * PHP version 5
+ *
+ * LICENCE: This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero 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 Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * @category  Settings
+ * @package   Laconica
+ * @author    Evan Prodromou <evan@controlyourself.ca>
+ * @author    Zach Copley <zach@controlyourself.ca>
+ * @copyright 2008-2009 Control Yourself, Inc.
+ * @license   http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link      http://laconi.ca/
+ */
+
+if (!defined('LACONICA')) {
+    exit(1);
+}
+
+require_once INSTALLDIR.'/lib/accountsettingsaction.php';
+
+/**
+ * Upload an avatar
+ *
+ * We use jCrop plugin for jQuery to crop the image after upload.
+ *
+ * @category Settings
+ * @package  Laconica
+ * @author   Evan Prodromou <evan@controlyourself.ca>
+ * @author   Zach Copley <zach@controlyourself.ca>
+ * @author   Sarven Capadisli <csarven@controlyourself.ca>
+ * @license  http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
+ * @link     http://laconi.ca/
+ */
+
+class GrouplogoAction extends Action
+{
+    var $mode = null;
+    var $imagefile = null;
+    var $filename = null;
+
+    /**
+     * Prepare to run
+     */
+
+    function prepare($args)
+    {
+        parent::prepare($args);
+
+        if (!common_config('inboxes','enabled')) {
+            $this->serverError(_('Inboxes must be enabled for groups to work'));
+            return false;
+        }
+
+        if (!common_logged_in()) {
+            $this->clientError(_('You must be logged in to create a group.'));
+            return false;
+        }
+
+        $nickname_arg = $this->trimmed('nickname');
+        $nickname = common_canonical_nickname($nickname_arg);
+
+        // Permanent redirect on non-canonical nickname
+
+        if ($nickname_arg != $nickname) {
+            $args = array('nickname' => $nickname);
+            common_redirect(common_local_url('editgroup', $args), 301);
+            return false;
+        }
+
+        if (!$nickname) {
+            $this->clientError(_('No nickname'), 404);
+            return false;
+        }
+
+        $groupid = $this->trimmed('groupid');
+
+        if ($groupid) {
+            $this->group = User_group::staticGet('id', $groupid);
+        } else {
+            $this->group = User_group::staticGet('nickname', $nickname);
+        }
+
+        if (!$this->group) {
+            $this->clientError(_('No such group'), 404);
+            return false;
+        }
+
+        $cur = common_current_user();
+
+        if (!$cur->isAdmin($this->group)) {
+            $this->clientError(_('You must be an admin to edit the group'), 403);
+            return false;
+        }
+
+        return true;
+    }
+
+    function handle($args)
+    {
+        parent::handle($args);
+        if ($_SERVER['REQUEST_METHOD'] == 'POST') {
+            $this->handlePost();
+        } else {
+            $this->showForm();
+        }
+    }
+
+    function showForm($msg = null)
+    {
+        $this->msg = $msg;
+        $this->showPage();
+    }
+
+    /**
+     * Title of the page
+     *
+     * @return string Title of the page
+     */
+
+    function title()
+    {
+        return _('Group logo');
+    }
+
+    /**
+     * Instructions for use
+     *
+     * @return instructions for use
+     */
+
+    function getInstructions()
+    {
+        return _('You can upload a logo image for your group.');
+    }
+
+    /**
+     * Content area of the page
+     *
+     * Shows a form for uploading an avatar.
+     *
+     * @return void
+     */
+
+    function showContent()
+    {
+        if ($this->mode == 'crop') {
+            $this->showCropForm();
+        } else {
+            $this->showUploadForm();
+        }
+    }
+
+    function showUploadForm()
+    {
+        $user = common_current_user();
+
+        $profile = $user->getProfile();
+
+        if (!$profile) {
+            common_log_db_error($user, 'SELECT', __FILE__);
+            $this->serverError(_('User without matching profile'));
+            return;
+        }
+
+        $original = $this->group->original_logo;
+
+        $this->elementStart('form', array('enctype' => 'multipart/form-data',
+                                          'method' => 'post',
+                                          'id' => 'form_settings_logo',
+                                          'class' => 'form_settings',
+                                          'action' =>
+                                          common_local_url('grouplogo',
+                                                           array('nickname' => $this->group->nickname))));
+        $this->elementStart('fieldset');
+        $this->element('legend', null, _('Group logo'));
+        $this->hidden('token', common_session_token());
+
+        $this->elementStart('ul', 'form_data');
+        if ($original) {
+            $this->elementStart('li', array('id' => 'avatar_original',
+                                            'class' => 'avatar_view'));
+            $this->element('h2', null, _("Original"));
+            $this->elementStart('div', array('id'=>'avatar_original_view'));
+            $this->element('img', array('src' => $this->group->original_logo,
+                                        'alt' => $this->group->nickname));
+            $this->elementEnd('div');
+            $this->elementEnd('li');
+        }
+
+        if ($this->group->homepage_logo) {
+            $this->elementStart('li', array('id' => 'avatar_preview',
+                                            'class' => 'avatar_view'));
+            $this->element('h2', null, _("Preview"));
+            $this->elementStart('div', array('id'=>'avatar_preview_view'));
+            $this->element('img', array('src' => $this->group->homepage_logo,
+                                        'width' => AVATAR_PROFILE_SIZE,
+                                        'height' => AVATAR_PROFILE_SIZE,
+                                        'alt' => $this->group->nickname));
+            $this->elementEnd('div');
+            $this->elementEnd('li');
+        }
+
+        $this->elementStart('li', array ('id' => 'settings_attach'));
+        $this->element('input', array('name' => 'avatarfile',
+                                      'type' => 'file',
+                                      'id' => 'avatarfile'));
+        $this->element('input', array('name' => 'MAX_FILE_SIZE',
+                                      'type' => 'hidden',
+                                      'id' => 'MAX_FILE_SIZE',
+                                      'value' => MAX_AVATAR_SIZE));
+        $this->elementEnd('li');
+        $this->elementEnd('ul');
+
+        $this->elementStart('ul', 'form_actions');
+        $this->elementStart('li');
+        $this->submit('upload', _('Upload'));
+        $this->elementEnd('li');
+        $this->elementEnd('ul');
+
+        $this->elementEnd('fieldset');
+        $this->elementEnd('form');
+
+    }
+
+    function showCropForm()
+    {
+        $this->elementStart('form', array('method' => 'post',
+                                          'id' => 'form_settings_avatar',
+                                          'class' => 'form_settings',
+                                          'action' =>
+                                          common_local_url('grouplogo',
+                                                           array('nickname' => $this->group->nickname))));
+        $this->elementStart('fieldset');
+        $this->element('legend', null, _('Avatar settings'));
+        $this->hidden('token', common_session_token());
+
+        $this->elementStart('ul', 'form_data');
+
+        $this->elementStart('li',
+                            array('id' => 'avatar_original',
+                                  'class' => 'avatar_view'));
+        $this->element('h2', null, _("Original"));
+        $this->elementStart('div', array('id'=>'avatar_original_view'));
+        $this->element('img', array('src' => common_avatar_url($this->filedata['filename']),
+                                    'width' => $this->filedata['width'],
+                                    'height' => $this->filedata['height'],
+                                    'alt' => $this->group->nickname));
+        $this->elementEnd('div');
+        $this->elementEnd('li');
+
+        $this->elementStart('li',
+                            array('id' => 'avatar_preview',
+                                  'class' => 'avatar_view'));
+        $this->element('h2', null, _("Preview"));
+        $this->elementStart('div', array('id'=>'avatar_preview_view'));
+        $this->element('img', array('src' => common_avatar_url($this->filedata['filename']),
+                                    'width' => AVATAR_PROFILE_SIZE,
+                                    'height' => AVATAR_PROFILE_SIZE,
+                                    'alt' => $this->group->nickname));
+        $this->elementEnd('div');
+
+        foreach (array('avatar_crop_x', 'avatar_crop_y',
+                       'avatar_crop_w', 'avatar_crop_h') as $crop_info) {
+            $this->element('input', array('name' => $crop_info,
+                                          'type' => 'hidden',
+                                          'id' => $crop_info));
+        }
+        $this->submit('crop', _('Crop'));
+
+        $this->elementEnd('li');
+        $this->elementEnd('ul');
+        $this->elementEnd('fieldset');
+        $this->elementEnd('form');
+
+    }
+
+    /**
+     * Handle a post
+     *
+     * We mux on the button name to figure out what the user actually wanted.
+     *
+     * @return void
+     */
+
+    function handlePost()
+    {
+        // CSRF protection
+
+        $token = $this->trimmed('token');
+        if (!$token || $token != common_session_token()) {
+            $this->show_form(_('There was a problem with your session token. '.
+                               'Try again, please.'));
+            return;
+        }
+
+        if ($this->arg('upload')) {
+            $this->uploadAvatar();
+        } else if ($this->arg('crop')) {
+            $this->cropAvatar();
+        } else {
+            $this->showForm(_('Unexpected form submission.'));
+        }
+    }
+
+    /**
+     * Handle an image upload
+     *
+     * Does all the magic for handling an image upload, and crops the
+     * image by default.
+     *
+     * @return void
+     */
+
+    function uploadAvatar()
+    {
+        try {
+            $imagefile = ImageFile::fromUpload('avatarfile');
+        } catch (Exception $e) {
+            $this->showForm($e->getMessage());
+            return;
+        }
+
+        $filename = common_avatar_filename($this->group->id,
+                                           image_type_to_extension($imagefile->type),
+                                           null,
+                                           'group-temp-'.common_timestamp());
+
+        $filepath = common_avatar_path($filename);
+
+        move_uploaded_file($imagefile->filename, $filepath);
+
+        $filedata = array('filename' => $filename,
+                          'filepath' => $filepath,
+                          'width' => $imagefile->width,
+                          'height' => $imagefile->height,
+                          'type' => $imagefile->type);
+
+        $_SESSION['FILEDATA'] = $filedata;
+
+        $this->filedata = $filedata;
+
+        $this->mode = 'crop';
+
+        $this->showForm(_('Pick a square area of the image to be your avatar'),
+                        true);
+    }
+
+    /**
+     * Handle the results of jcrop.
+     *
+     * @return void
+     */
+
+    function cropAvatar()
+    {
+        $user = common_current_user();
+
+        $profile = $user->getProfile();
+
+        $x = $this->arg('avatar_crop_x');
+        $y = $this->arg('avatar_crop_y');
+        $w = $this->arg('avatar_crop_w');
+        $h = $this->arg('avatar_crop_h');
+
+        $filedata = $_SESSION['FILEDATA'];
+
+        if (!$filedata) {
+            $this->serverError(_('Lost our file data.'));
+            return;
+        }
+
+        $filepath = common_avatar_path($filedata['filename']);
+
+        if (!file_exists($filepath)) {
+            $this->serverError(_('Lost our file.'));
+            return;
+        }
+
+        switch ($filedata['type']) {
+        case IMAGETYPE_GIF:
+            $image_src = imagecreatefromgif($filepath);
+            break;
+        case IMAGETYPE_JPEG:
+            $image_src = imagecreatefromjpeg($filepath);
+            break;
+        case IMAGETYPE_PNG:
+            $image_src = imagecreatefrompng($filepath);
+            break;
+         default:
+            $this->serverError(_('Unknown file type'));
+            return;
+        }
+
+        common_debug("W = $w, H = $h, X = $x, Y = $y");
+
+        $image_dest = imagecreatetruecolor($w, $h);
+
+        $background = imagecolorallocate($image_dest, 0, 0, 0);
+        ImageColorTransparent($image_dest, $background);
+        imagealphablending($image_dest, false);
+
+        imagecopyresized($image_dest, $image_src, 0, 0, $x, $y, $w, $h, $w, $h);
+
+        $cur = common_current_user();
+
+        $filename = common_avatar_filename($this->group->id,
+                                           image_type_to_extension($imagefile->type),
+                                           null,
+                                           'group-'.common_timestamp());
+
+        $filepath = common_avatar_path($filename);
+
+        switch ($filedata['type']) {
+        case IMAGETYPE_GIF:
+            imagegif($image_dest, $filepath);
+            break;
+        case IMAGETYPE_JPEG:
+            imagejpeg($image_dest, $filepath);
+            break;
+        case IMAGETYPE_PNG:
+            imagepng($image_dest, $filepath);
+            break;
+         default:
+            $this->serverError(_('Unknown file type'));
+            return;
+        }
+
+        if ($this->group->setOriginal($filename, $filedata['type'])) {
+            @unlink(common_avatar_path($filedata['filename']));
+            unset($_SESSION['FILEDATA']);
+            $this->mode = 'upload';
+            $this->showForm(_('Logo updated.'), true);
+        } else {
+            $this->showForm(_('Failed updating logo.'));
+        }
+    }
+
+    function showPageNotice()
+    {
+        if ($this->msg) {
+            $this->element('div', ($this->success) ? 'success' : 'error',
+                           $this->msg);
+        } else {
+            $inst   = $this->getInstructions();
+            $output = common_markup_to_html($inst);
+
+            $this->elementStart('div', 'instructions');
+            $this->raw($output);
+            $this->elementEnd('div');
+        }
+    }
+
+    /**
+     * Add the jCrop stylesheet
+     *
+     * @return void
+     */
+
+    function showStylesheets()
+    {
+        parent::showStylesheets();
+        $jcropStyle =
+          common_path('theme/base/css/jquery.Jcrop.css?version='.LACONICA_VERSION);
+
+        $this->element('link', array('rel' => 'stylesheet',
+                                     'type' => 'text/css',
+                                     'href' => $jcropStyle,
+                                     'media' => 'screen, projection, tv'));
+    }
+
+    /**
+     * Add the jCrop scripts
+     *
+     * @return void
+     */
+
+    function showScripts()
+    {
+        parent::showScripts();
+
+        $jcropPack = common_path('js/jcrop/jquery.Jcrop.pack.js');
+        $jcropGo   = common_path('js/jcrop/jquery.Jcrop.go.js');
+
+        $this->element('script', array('type' => 'text/javascript',
+                                       'src' => $jcropPack));
+        $this->element('script', array('type' => 'text/javascript',
+                                       'src' => $jcropGo));
+    }
+
+    function showLocalNav()
+    {
+        $nav = new GroupNav($this, $this->group);
+        $nav->show();
+    }
+}