gnu-social/actions/grouplogo.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 2008-2011 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('GNUSOCIAL')) {
exit(1);
}
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/**
* Upload an avatar
*
* We use jCrop plugin for jQuery to crop the image after upload.
*
* @category Settings
* @package StatusNet
* @author Evan Prodromou <evan@status.net>
* @author Zach Copley <zach@status.net>
* @author Sarven Capadisli <csarven@status.net>
* @author Alexei Sorokin <sor.alexei@meowr.ru>
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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 GrouplogoAction extends GroupAction
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{
public $mode = null;
public $imagefile = null;
public $filename = null;
public $message = null;
public $success = null;
protected $canPost = true;
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/**
* Title of the page
*
* @return string Title of the page
*/
public function title()
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{
// TRANS: Title for group logo settings page.
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return _('Group logo');
}
/**
* Content area of the page
*
* Shows a form for uploading an avatar.
*
* @return void
*/
public function showContent()
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{
if ($this->mode == 'crop') {
$this->showCropForm();
} else {
$this->showUploadForm();
}
}
public 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');
// TRANS: Legend for group logo settings 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')
);
// TRANS: Header for originally uploaded file before a crop on the group logo page.
$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' => $this->group->nickname));
$this->elementEnd('div');
$this->elementEnd('li');
$this->elementStart(
'li',
array('id' => 'avatar_preview',
'class' => 'avatar_view')
);
// TRANS: Header for the cropped group logo on the group logo page.
$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' => $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));
}
// TRANS: Button text for cropping an uploaded group logo.
$this->submit('crop', _('Crop'));
$this->elementEnd('li');
$this->elementEnd('ul');
$this->elementEnd('fieldset');
$this->elementEnd('form');
}
public function showUploadForm()
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{
$user = common_current_user();
$profile = $user->getProfile();
if (!$profile) {
common_log_db_error($user, 'SELECT', __FILE__);
// TRANS: Error message displayed when referring to a user without a profile.
$this->serverError(_('User has no profile.'));
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}
$original = $this->group->original_logo;
$this->elementStart('form', array('enctype' => 'multipart/form-data',
'method' => 'post',
'id' => 'form_settings_avatar',
'class' => 'form_settings',
'action' =>
common_local_url(
'grouplogo',
array('nickname' => $this->group->nickname)
)));
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$this->elementStart('fieldset');
// TRANS: Group logo form legend.
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$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'));
// TRANS: Uploaded original file in group logo form.
$this->element('h2', null, _('Original'));
$this->elementStart('div', array('id' => 'avatar_original_view'));
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$this->element('img', array('src' => $this->group->original_logo,
'alt' => $this->group->nickname));
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$this->elementEnd('div');
$this->elementEnd('li');
}
if ($this->group->homepage_logo) {
$this->elementStart('li', array('id' => 'avatar_preview',
'class' => 'avatar_view'));
// TRANS: Header for preview of to be displayed group logo.
$this->element('h2', null, _('Preview'));
$this->elementStart('div', array('id' => 'avatar_preview_view'));
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$this->element('img', array('src' => $this->group->homepage_logo,
'width' => AVATAR_PROFILE_SIZE,
'height' => AVATAR_PROFILE_SIZE,
'alt' => $this->group->nickname));
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$this->elementEnd('div');
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if (!empty($this->group->homepage_logo)) {
// TRANS: Button on group logo upload page to delete current group logo.
$this->submit('delete', _('Delete'));
}
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$this->elementEnd('li');
}
$this->elementStart('li', array('id' => 'settings_attach'));
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$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');
$this->elementEnd('ul');
$this->elementStart('ul', 'form_actions');
$this->elementStart('li');
// TRANS: Submit button for uploading a group logo.
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$this->submit('upload', _('Upload'));
$this->elementEnd('li');
$this->elementEnd('ul');
$this->elementEnd('fieldset');
$this->elementEnd('form');
}
public function showPageNoticeBlock()
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{
parent::showPageNoticeBlock();
if ($this->message) {
$this->element(
'div',
($this->success) ? 'success' : 'error',
$this->message
);
} else {
$inst = $this->getInstructions();
$output = common_markup_to_html($inst);
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$this->elementStart('div', 'instructions');
$this->raw($output);
$this->elementEnd('div');
}
}
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/**
* Instructions for use
*
* @return string instructions for use
*/
public function getInstructions()
{
// TRANS: Instructions for group logo page.
// TRANS: %s is the maximum file size for that site.
return sprintf(_('You can upload a logo image for your group. The maximum file size is %s.'), ImageFile::maxFileSize());
}
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/**
* Add the jCrop stylesheet
*
* @return void
*/
public function showStylesheets()
{
parent::showStylesheets();
$this->cssLink('js/extlib/jquery-jcrop/css/jcrop.css', 'base', 'screen, projection, tv');
}
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/**
* Add the jCrop scripts
*
* @return void
*/
public function showScripts()
{
parent::showScripts();
if ($this->mode == 'crop') {
$this->script('extlib/jquery-jcrop/jcrop.js');
$this->script('jcrop.go.js');
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}
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$this->autofocus('avatarfile');
}
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/**
* Prepare to run
* @param array $args
* @return bool
* @throws ClientException
* @throws NicknameException
*/
protected function prepare(array $args = [])
{
parent::prepare($args);
if (!common_logged_in()) {
// TRANS: Client error displayed when trying to create a group while not logged in.
$this->clientError(_('You must be logged in to create a group.'));
}
$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('grouplogo', $args), 301);
}
if (!$nickname) {
// TRANS: Client error displayed when trying to change group logo settings without providing a nickname.
$this->clientError(_('No nickname.'), 404);
}
$groupid = $this->trimmed('groupid');
if ($groupid) {
$this->group = User_group::getKV('id', $groupid);
} else {
$local = Local_group::getKV('nickname', $nickname);
if ($local) {
$this->group = User_group::getKV('id', $local->group_id);
}
}
if (!$this->group) {
// TRANS: Client error displayed when trying to update logo settings for a non-existing group.
$this->clientError(_('No such group.'), 404);
}
$cur = common_current_user();
if (!$cur->isAdmin($this->group)) {
// TRANS: Client error displayed when trying to change group logo settings while not being a group admin.
$this->clientError(_('You must be an admin to edit the group.'), 403);
}
return true;
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}
/**
* Handle a post
*
* We mux on the button name to figure out what the user actually wanted.
*
* @return void
* @throws ClientException
* @throws NoResultException
* @throws UnsupportedMediaException
* @throws UseFileAsThumbnailException
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*/
protected function handlePost()
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{
parent::handlePost();
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if ($this->arg('upload')) {
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$this->uploadLogo();
} elseif ($this->arg('crop')) {
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$this->cropLogo();
} elseif ($this->arg('delete')) {
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$this->deleteLogo();
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} else {
// TRANS: Form validation error message when an unsupported argument is used.
$this->setMessage(_('Unexpected form submission.'), true);
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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
*/
public function uploadLogo()
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{
try {
$imagefile = ImageFile::fromUpload('avatarfile');
} catch (Exception $e) {
$this->setMessage($e->getMessage(), true);
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return;
}
$type = $imagefile->preferredType();
$filename = Avatar::filename(
$this->group->id,
image_type_to_extension($type),
null,
'group-temp-' . common_timestamp()
);
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$filepath = Avatar::path($filename);
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$imagefile->copyTo($filepath);
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$filedata = array('filename' => $filename,
'filepath' => $filepath,
'width' => $imagefile->width,
'height' => $imagefile->height,
'type' => $type);
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$_SESSION['FILEDATA'] = $filedata;
$this->filedata = $filedata;
$this->mode = 'crop';
// TRANS: Form instructions on the group logo page.
$this->setMessage(_('Pick a square area of the image to be the logo.'));
}
public function setMessage($msg, $error = false)
{
$this->message = $msg;
$this->success = !$error;
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}
/**
* Handle the results of jcrop.
*
* @return void
* @throws NoResultException
* @throws UnsupportedMediaException
* @throws UseFileAsThumbnailException
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*/
public function cropLogo()
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{
$filedata = $_SESSION['FILEDATA'];
if (!$filedata) {
// TRANS: Server error displayed trying to crop an uploaded group logo that is no longer present.
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$this->serverError(_('Lost our file data.'));
}
// If image is not being cropped assume pos & dimentions of original
$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') : $filedata['width'];
$dest_h = $this->arg('avatar_crop_h') ? $this->arg('avatar_crop_h') : $filedata['height'];
$size = min($dest_w, $dest_h, common_config('avatar', 'maxsize'));
$box = array('width' => $size, 'height' => $size,
'x' => $dest_x, 'y' => $dest_y,
'w' => $dest_w, 'h' => $dest_h);
$profile = $this->group->getProfile();
$imagefile = new ImageFile(null, $filedata['filepath']);
$filename = Avatar::filename(
$profile->getID(),
image_type_to_extension($imagefile->preferredType()),
$size,
common_timestamp()
);
$imagefile->resizeTo(Avatar::path($filename), $box);
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if ($profile->setOriginal($filename)) {
@unlink($filedata['filepath']);
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unset($_SESSION['FILEDATA']);
$this->mode = 'upload';
// TRANS: Form success message after updating a group logo.
$this->setMessage(_('Logo updated.'));
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} else {
// TRANS: Form failure message after failing to update a group logo.
$this->setMessage(_('Failed updating logo.'), true);
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}
}
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/**
* Get rid of the current group logo.
*
* @return void
*/
public function deleteLogo()
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{
$orig = clone($this->group);
Avatar::deleteFromProfile($this->group->getProfile());
@unlink(Avatar::path(basename($this->group->original_logo)));
@unlink(Avatar::path(basename($this->group->homepage_logo)));
@unlink(Avatar::path(basename($this->group->stream_logo)));
@unlink(Avatar::path(basename($this->group->mini_logo)));
$this->group->original_logo = User_group::defaultLogo(AVATAR_PROFILE_SIZE);
$this->group->homepage_logo = User_group::defaultLogo(AVATAR_PROFILE_SIZE);
$this->group->stream_logo = User_group::defaultLogo(AVATAR_STREAM_SIZE);
$this->group->mini_logo = User_group::defaultLogo(AVATAR_MINI_SIZE);
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$this->group->update($orig);
// TRANS: Success message for deleting the group logo.
$this->setMessage(_('Logo deleted.'));
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}
}