gnu-social/actions/avatarsettings.php

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<?php
/**
* StatusNet, the distributed open-source microblogging tool
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*
* 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 StatusNet
* @author Evan Prodromou <evan@status.net>
* @author Zach Copley <zach@status.net>
* @copyright 2008-2009 StatusNet, Inc.
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://status.net/
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*/
if (!defined('STATUSNET') && !defined('LACONICA')) {
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exit(1);
}
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define('MAX_ORIGINAL', 480);
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/**
* Upload an avatar
*
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* We use jCrop plugin for jQuery to crop the image after upload.
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*
* @category Settings
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @author Zach Copley <zach@status.net>
* @author Sarven Capadisli <csarven@status.net>
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* @license http://www.fsf.org/licensing/licenses/agpl-3.0.html GNU Affero General Public License version 3.0
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* @link http://status.net/
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*/
class AvatarsettingsAction extends SettingsAction
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{
var $mode = null;
var $imagefile = null;
var $filename = null;
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/**
* Title of the page
*
* @return string Title of the page
*/
function title()
{
// TRANS: Title for avatar upload page.
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return _('Avatar');
}
/**
* Instructions for use
*
* @return instructions for use
*/
function getInstructions()
{
// TRANS: Instruction for avatar upload page.
// TRANS: %s is the maximum file size, for example "500b", "10kB" or "2MB".
return sprintf(_('You can upload your personal avatar. The maximum file size is %s.'),
ImageFile::maxFileSize());
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}
/**
* Content area of the page
*
* Shows a form for uploading an avatar.
*
* @return void
*/
function showContent()
{
if ($this->mode == 'crop') {
$this->showCropForm();
} else {
$this->showUploadForm();
}
}
function showUploadForm()
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{
$user = common_current_user();
$profile = $user->getProfile();
if (!$profile) {
common_log_db_error($user, 'SELECT', __FILE__);
// TRANS: Server error displayed in avatar upload page when no matching profile can be found for a user.
$this->serverError(_('User without matching profile.'));
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return;
}
$original = $profile->getOriginalAvatar();
$this->elementStart('form', array('enctype' => 'multipart/form-data',
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'method' => 'post',
'id' => 'form_settings_avatar',
'class' => 'form_settings',
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'action' =>
common_local_url('avatarsettings')));
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$this->elementStart('fieldset');
// TRANS: Avatar upload page form legend.
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$this->element('legend', null, _('Avatar settings'));
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$this->hidden('token', common_session_token());
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if (Event::handle('StartAvatarFormData', array($this))) {
$this->elementStart('ul', 'form_data');
if ($original) {
$this->elementStart('li', array('id' => 'avatar_original',
'class' => 'avatar_view'));
// TRANS: Header on avatar upload page for thumbnail of originally uploaded avatar (h2).
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$this->element('h2', null, _("Original"));
$this->elementStart('div', array('id'=>'avatar_original_view'));
$this->element('img', array('src' => $original->url,
'width' => $original->width,
'height' => $original->height,
'alt' => $user->nickname));
$this->elementEnd('div');
$this->elementEnd('li');
}
$avatar = $profile->getAvatar(AVATAR_PROFILE_SIZE);
if ($avatar) {
$this->elementStart('li', array('id' => 'avatar_preview',
'class' => 'avatar_view'));
// TRANS: Header on avatar upload page for thumbnail of to be used rendition of uploaded avatar (h2).
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$this->element('h2', null, _("Preview"));
$this->elementStart('div', array('id'=>'avatar_preview_view'));
$this->element('img', array('src' => $original->url,
'width' => AVATAR_PROFILE_SIZE,
'height' => AVATAR_PROFILE_SIZE,
'alt' => $user->nickname));
$this->elementEnd('div');
// TRANS: Button on avatar upload page to delete current avatar.
$this->submit('delete', _m('BUTTON','Delete'));
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$this->elementEnd('li');
}
$this->elementStart('li', array ('id' => 'settings_attach'));
$this->element('input', array('name' => 'MAX_FILE_SIZE',
'type' => 'hidden',
'id' => 'MAX_FILE_SIZE',
'value' => ImageFile::maxFileSizeInt()));
$this->element('input', array('name' => 'avatarfile',
'type' => 'file',
'id' => 'avatarfile'));
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$this->elementEnd('li');
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$this->elementEnd('ul');
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$this->elementStart('ul', 'form_actions');
$this->elementStart('li');
// TRANS: Button on avatar upload page to upload an avatar.
$this->submit('upload', _m('BUTTON','Upload'));
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$this->elementEnd('li');
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$this->elementEnd('ul');
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}
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Event::handle('EndAvatarFormData', array($this));
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$this->elementEnd('fieldset');
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$this->elementEnd('form');
}
function showCropForm()
{
$user = common_current_user();
$profile = $user->getProfile();
if (!$profile) {
common_log_db_error($user, 'SELECT', __FILE__);
// TRANS: Server error displayed in avatar upload page when no matching profile can be found for a user.
$this->serverError(_('User without matching profile.'));
return;
}
$original = $profile->getOriginalAvatar();
$this->elementStart('form', array('method' => 'post',
'id' => 'form_settings_avatar',
'class' => 'form_settings',
'action' =>
common_local_url('avatarsettings')));
$this->elementStart('fieldset');
// TRANS: Avatar upload page crop form legend.
$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'));
// TRANS: Header on avatar upload crop form for thumbnail of originally uploaded avatar (h2).
$this->element('h2', null, _('Original'));
$this->elementStart('div', array('id'=>'avatar_original_view'));
$this->element('img', array('src' => Avatar::url($this->filedata['filename']),
'width' => $this->filedata['width'],
'height' => $this->filedata['height'],
'alt' => $user->nickname));
$this->elementEnd('div');
$this->elementEnd('li');
$this->elementStart('li',
array('id' => 'avatar_preview',
'class' => 'avatar_view'));
// TRANS: Header on avatar upload crop form for thumbnail of to be used rendition of uploaded avatar (h2).
$this->element('h2', null, _('Preview'));
$this->elementStart('div', array('id'=>'avatar_preview_view'));
$this->element('img', array('src' => Avatar::url($this->filedata['filename']),
'width' => AVATAR_PROFILE_SIZE,
'height' => AVATAR_PROFILE_SIZE,
'alt' => $user->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));
}
// TRANS: Button on avatar upload crop form to confirm a selected crop as avatar.
$this->submit('crop', _m('BUTTON','Crop'));
$this->elementEnd('li');
$this->elementEnd('ul');
$this->elementEnd('fieldset');
$this->elementEnd('form');
}
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/**
* Handle a post
*
* We mux on the button name to figure out what the user actually wanted.
*
* @return void
*/
function handlePost()
{
// Workaround for PHP returning empty $_POST and $_FILES when POST
// length > post_max_size in php.ini
if (empty($_FILES)
&& empty($_POST)
&& ($_SERVER['CONTENT_LENGTH'] > 0)
) {
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// TRANS: Client error displayed when the number of bytes in a POST request exceeds a limit.
// TRANS: %s is the number of bytes of the CONTENT_LENGTH.
$msg = _m('The server was unable to handle that much POST data (%s byte) due to its current configuration.',
'The server was unable to handle that much POST data (%s bytes) due to its current configuration.',
intval($_SERVER['CONTENT_LENGTH']));
$this->showForm(sprintf($msg, $_SERVER['CONTENT_LENGTH']));
return;
}
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// CSRF protection
$token = $this->trimmed('token');
if (!$token || $token != common_session_token()) {
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// TRANS: Client error displayed when the session token does not match or is not given.
$this->showForm(_('There was a problem with your session token. '.
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'Try again, please.'));
return;
}
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if (Event::handle('StartAvatarSaveForm', array($this))) {
if ($this->arg('upload')) {
$this->uploadAvatar();
} else if ($this->arg('crop')) {
$this->cropAvatar();
} else if ($this->arg('delete')) {
$this->deleteAvatar();
} else {
// TRANS: Unexpected validation error on avatar upload form.
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$this->showForm(_('Unexpected form submission.'));
}
Event::handle('EndAvatarSaveForm', array($this));
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}
}
/**
* 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());
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return;
}
if ($imagefile === null) {
// TRANS: Validation error on avatar upload form when no file was uploaded.
$this->showForm(_('No file uploaded.'));
return;
}
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$cur = common_current_user();
$type = $imagefile->preferredType();
$filename = Avatar::filename($cur->id,
image_type_to_extension($type),
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null,
'tmp'.common_timestamp());
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$filepath = Avatar::path($filename);
$imagefile->copyTo($filepath);
$filedata = array('filename' => $filename,
'filepath' => $filepath,
'width' => $imagefile->width,
'height' => $imagefile->height,
'type' => $type);
$_SESSION['FILEDATA'] = $filedata;
$this->filedata = $filedata;
$this->mode = 'crop';
// TRANS: Avatar upload form instruction after uploading a file.
$this->showForm(_('Pick a square area of the image to be your avatar.'),
true);
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}
/**
* Handle the results of jcrop.
*
* @return void
*/
function cropAvatar()
{
$filedata = $_SESSION['FILEDATA'];
if (!$filedata) {
// TRANS: Server error displayed if an avatar upload went wrong somehow server side.
$this->serverError(_('Lost our file data.'));
return;
}
$file_d = ($filedata['width'] > $filedata['height'])
? $filedata['height'] : $filedata['width'];
$dest_x = $this->arg('avatar_crop_x') ? $this->arg('avatar_crop_x'):0;
$dest_y = $this->arg('avatar_crop_y') ? $this->arg('avatar_crop_y'):0;
$dest_w = $this->arg('avatar_crop_w') ? $this->arg('avatar_crop_w'):$file_d;
$dest_h = $this->arg('avatar_crop_h') ? $this->arg('avatar_crop_h'):$file_d;
$size = min($dest_w, $dest_h, MAX_ORIGINAL);
$user = common_current_user();
$profile = $user->getProfile();
$imagefile = new ImageFile($user->id, $filedata['filepath']);
$filename = $imagefile->resize($size, $dest_x, $dest_y, $dest_w, $dest_h);
if ($profile->setOriginal($filename)) {
@unlink($filedata['filepath']);
unset($_SESSION['FILEDATA']);
$this->mode = 'upload';
// TRANS: Success message for having updated a user avatar.
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$this->showForm(_('Avatar updated.'), true);
common_broadcast_profile($profile);
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} else {
// TRANS: Error displayed on the avatar upload page if the avatar could not be updated for an unknown reason.
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$this->showForm(_('Failed updating avatar.'));
}
}
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/**
* Get rid of the current avatar.
*
* @return void
*/
function deleteAvatar()
{
$user = common_current_user();
$profile = $user->getProfile();
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$avatar = $profile->getOriginalAvatar();
if($avatar) $avatar->delete();
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$avatar = $profile->getAvatar(AVATAR_PROFILE_SIZE);
if($avatar) $avatar->delete();
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$avatar = $profile->getAvatar(AVATAR_STREAM_SIZE);
if($avatar) $avatar->delete();
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$avatar = $profile->getAvatar(AVATAR_MINI_SIZE);
if($avatar) $avatar->delete();
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// TRANS: Success message for deleting a user avatar.
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$this->showForm(_('Avatar deleted.'), true);
}
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/**
* Add the jCrop stylesheet
*
* @return void
*/
function showStylesheets()
{
parent::showStylesheets();
$this->cssLink('css/jquery.Jcrop.css','base','screen, projection, tv');
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}
/**
* Add the jCrop scripts
*
* @return void
*/
function showScripts()
{
parent::showScripts();
if ($this->mode == 'crop') {
$this->script('jcrop/jquery.Jcrop.min.js');
$this->script('jcrop/jquery.Jcrop.go.js');
}
$this->autofocus('avatarfile');
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}
}