replace all tabs with four spaces

The PEAR coding standards decree: no tabs, but indent by four spaces.
I've done a global search-and-replace on all tabs, replacing them by
four spaces. This is a huge change, but it will go a long way to
getting us towards phpcs-compliance. And that means better code
readability, and that means more participation.

darcs-hash:20081223191907-84dde-21e8efe210e6d5d54e935a22d0cee5c7bbfc007d.gz

1 files changed, 412 insertions, 412 deletions

diff --git a/_darcs/pristine/actions/profilesettings.php b/_darcs/pristine/actions/profilesettings.php
index ed2623c9b..3d92161ab 100644
--- a/_darcs/pristine/actions/profilesettings.php
+++ b/_darcs/pristine/actions/profilesettings.php
@@ -23,417 +23,417 @@ require_once(INSTALLDIR.'/lib/settingsaction.php');
 
 class ProfilesettingsAction extends SettingsAction {
 
-	function get_instructions() {
-		return _('You can update your personal profile info here '.
-				  'so people know more about you.');
-	}
-
-	function show_form($msg=NULL, $success=false) {
-		$this->form_header(_('Profile settings'), $msg, $success);
-		$this->show_settings_form();
-		common_element('h2', NULL, _('Avatar'));
-		$this->show_avatar_form();
-		common_element('h2', NULL, _('Change password'));
-		$this->show_password_form();
-//		common_element('h2', NULL, _('Delete my account'));
-//		$this->show_delete_form();
-		common_show_footer();
-	}
-
-	function handle_post() {
-
-		# 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('save')) {
-			$this->save_profile();
-		} else if ($this->arg('upload')) {
-			$this->upload_avatar();
-		} else if ($this->arg('changepass')) {
-			$this->change_password();
-		}
-
-	}
-
-	function show_settings_form() {
-
-		$user = common_current_user();
-		$profile = $user->getProfile();
-
-		common_element_start('form', array('method' => 'POST',
-										   'id' => 'profilesettings',
-										   'action' =>
-										   common_local_url('profilesettings')));
-		common_hidden('token', common_session_token());
-		
-		# too much common patterns here... abstractable?
-		
-		common_input('nickname', _('Nickname'),
-					 ($this->arg('nickname')) ? $this->arg('nickname') : $profile->nickname,
-					 _('1-64 lowercase letters or numbers, no punctuation or spaces'));
-		common_input('fullname', _('Full name'),
-					 ($this->arg('fullname')) ? $this->arg('fullname') : $profile->fullname);
-		common_input('homepage', _('Homepage'),
-					 ($this->arg('homepage')) ? $this->arg('homepage') : $profile->homepage,
-					 _('URL of your homepage, blog, or profile on another site'));
-		common_textarea('bio', _('Bio'),
-						($this->arg('bio')) ? $this->arg('bio') : $profile->bio,
-						_('Describe yourself and your interests in 140 chars'));
-		common_input('location', _('Location'),
-					 ($this->arg('location')) ? $this->arg('location') : $profile->location,
-					 _('Where you are, like "City, State (or Region), Country"'));
-		common_input('tags', _('Tags'),
-					 ($this->arg('tags')) ? $this->arg('tags') : implode(' ', $user->getSelfTags()),
-					 _('Tags for yourself (letters, numbers, -, ., and _), comma- or space- separated'));
-
-		$language = common_language();
-		common_dropdown('language', _('Language'), get_nice_language_list(), _('Preferred language'), TRUE, $language);
-		$timezone = common_timezone();
-		$timezones = array();
-		foreach(DateTimeZone::listIdentifiers() as $k => $v) {
-			$timezones[$v] = $v;
-		}
-		common_dropdown('timezone', _('Timezone'), $timezones, _('What timezone are you normally in?'), TRUE, $timezone);
-
-		common_checkbox('autosubscribe', _('Automatically subscribe to whoever subscribes to me (best for non-humans)'),
-						($this->arg('autosubscribe')) ? $this->boolean('autosubscribe') : $user->autosubscribe);
-
-		common_submit('save', _('Save'));
-
-		common_element_end('form');
-
-
-	}
-
-	function show_avatar_form() {
-
-		$user = common_current_user();
-		$profile = $user->getProfile();
-
-		if (!$profile) {
-			common_log_db_error($user, 'SELECT', __FILE__);
-			$this->server_error(_('User without matching profile'));
-			return;
-		}
-		
-		$original = $profile->getOriginalAvatar();
-
-
-		common_element_start('form', array('enctype' => 'multipart/form-data',
-										   'method' => 'POST',
-										   'id' => 'avatar',
-										   'action' =>
-										   common_local_url('profilesettings')));
-		common_hidden('token', common_session_token());
-
-		if ($original) {
-			common_element('img', array('src' => $original->url,
-										'class' => 'avatar original',
-										'width' => $original->width,
-										'height' => $original->height,
-										'alt' => $user->nickname));
-		}
-
-		$avatar = $profile->getAvatar(AVATAR_PROFILE_SIZE);
-
-		if ($avatar) {
-			common_element('img', array('src' => $avatar->url,
-										'class' => 'avatar profile',
-										'width' => AVATAR_PROFILE_SIZE,
-										'height' => AVATAR_PROFILE_SIZE,
-										'alt' => $user->nickname));
-		}
-
-
-		common_element('input', array('name' => 'MAX_FILE_SIZE',
-									  'type' => 'hidden',
-									  'id' => 'MAX_FILE_SIZE',
-									  'value' => MAX_AVATAR_SIZE));
-
-		common_element_start('p');
-
-
-		common_element('input', array('name' => 'avatarfile',
-									  'type' => 'file',
-									  'id' => 'avatarfile'));
-		common_element_end('p');
-
-		common_submit('upload', _('Upload'));
-		common_element_end('form');
-
-	}
-
-	function show_password_form() {
-
-		$user = common_current_user();
-		common_element_start('form', array('method' => 'POST',
-										   'id' => 'password',
-										   'action' =>
-										   common_local_url('profilesettings')));
-
-		common_hidden('token', common_session_token());
-
-		# Users who logged in with OpenID won't have a pwd
-		if ($user->password) {
-			common_password('oldpassword', _('Old password'));
-		}
-		common_password('newpassword', _('New password'),
-						_('6 or more characters'));
-		common_password('confirm', _('Confirm'),
-						_('same as password above'));
-		common_submit('changepass', _('Change'));
-		common_element_end('form');
-	}
-
-	function save_profile() {
-		$nickname = $this->trimmed('nickname');
-		$fullname = $this->trimmed('fullname');
-		$homepage = $this->trimmed('homepage');
-		$bio = $this->trimmed('bio');
-		$location = $this->trimmed('location');
-		$autosubscribe = $this->boolean('autosubscribe');
-		$language = $this->trimmed('language');
-		$timezone = $this->trimmed('timezone');
-		$tagstring = $this->trimmed('tags');
-		
-		# Some validation
-
-		if (!Validate::string($nickname, array('min_length' => 1,
-											   'max_length' => 64,
-											   'format' => VALIDATE_NUM . VALIDATE_ALPHA_LOWER))) {
-			$this->show_form(_('Nickname must have only lowercase letters and numbers and no spaces.'));
-			return;
-		} else if (!User::allowed_nickname($nickname)) {
-			$this->show_form(_('Not a valid nickname.'));
-			return;
-		} else if (!is_null($homepage) && (strlen($homepage) > 0) &&
-				   !Validate::uri($homepage, array('allowed_schemes' => array('http', 'https')))) {
-			$this->show_form(_('Homepage is not a valid URL.'));
-			return;
-		} else if (!is_null($fullname) && strlen($fullname) > 255) {
-			$this->show_form(_('Full name is too long (max 255 chars).'));
-			return;
-		} else if (!is_null($bio) && strlen($bio) > 140) {
-			$this->show_form(_('Bio is too long (max 140 chars).'));
-			return;
-		} else if (!is_null($location) && strlen($location) > 255) {
-			$this->show_form(_('Location is too long (max 255 chars).'));
-			return;
-		}  else if (is_null($timezone) || !in_array($timezone, DateTimeZone::listIdentifiers())) {
-			$this->show_form(_('Timezone not selected.'));
-			return;
-		} else if ($this->nickname_exists($nickname)) {
-			$this->show_form(_('Nickname already in use. Try another one.'));
-			return;
+    function get_instructions() {
+        return _('You can update your personal profile info here '.
+                  'so people know more about you.');
+    }
+
+    function show_form($msg=NULL, $success=false) {
+        $this->form_header(_('Profile settings'), $msg, $success);
+        $this->show_settings_form();
+        common_element('h2', NULL, _('Avatar'));
+        $this->show_avatar_form();
+        common_element('h2', NULL, _('Change password'));
+        $this->show_password_form();
+//        common_element('h2', NULL, _('Delete my account'));
+//        $this->show_delete_form();
+        common_show_footer();
+    }
+
+    function handle_post() {
+
+        # 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('save')) {
+            $this->save_profile();
+        } else if ($this->arg('upload')) {
+            $this->upload_avatar();
+        } else if ($this->arg('changepass')) {
+            $this->change_password();
+        }
+
+    }
+
+    function show_settings_form() {
+
+        $user = common_current_user();
+        $profile = $user->getProfile();
+
+        common_element_start('form', array('method' => 'POST',
+                                           'id' => 'profilesettings',
+                                           'action' =>
+                                           common_local_url('profilesettings')));
+        common_hidden('token', common_session_token());
+        
+        # too much common patterns here... abstractable?
+        
+        common_input('nickname', _('Nickname'),
+                     ($this->arg('nickname')) ? $this->arg('nickname') : $profile->nickname,
+                     _('1-64 lowercase letters or numbers, no punctuation or spaces'));
+        common_input('fullname', _('Full name'),
+                     ($this->arg('fullname')) ? $this->arg('fullname') : $profile->fullname);
+        common_input('homepage', _('Homepage'),
+                     ($this->arg('homepage')) ? $this->arg('homepage') : $profile->homepage,
+                     _('URL of your homepage, blog, or profile on another site'));
+        common_textarea('bio', _('Bio'),
+                        ($this->arg('bio')) ? $this->arg('bio') : $profile->bio,
+                        _('Describe yourself and your interests in 140 chars'));
+        common_input('location', _('Location'),
+                     ($this->arg('location')) ? $this->arg('location') : $profile->location,
+                     _('Where you are, like "City, State (or Region), Country"'));
+        common_input('tags', _('Tags'),
+                     ($this->arg('tags')) ? $this->arg('tags') : implode(' ', $user->getSelfTags()),
+                     _('Tags for yourself (letters, numbers, -, ., and _), comma- or space- separated'));
+
+        $language = common_language();
+        common_dropdown('language', _('Language'), get_nice_language_list(), _('Preferred language'), TRUE, $language);
+        $timezone = common_timezone();
+        $timezones = array();
+        foreach(DateTimeZone::listIdentifiers() as $k => $v) {
+            $timezones[$v] = $v;
+        }
+        common_dropdown('timezone', _('Timezone'), $timezones, _('What timezone are you normally in?'), TRUE, $timezone);
+
+        common_checkbox('autosubscribe', _('Automatically subscribe to whoever subscribes to me (best for non-humans)'),
+                        ($this->arg('autosubscribe')) ? $this->boolean('autosubscribe') : $user->autosubscribe);
+
+        common_submit('save', _('Save'));
+
+        common_element_end('form');
+
+
+    }
+
+    function show_avatar_form() {
+
+        $user = common_current_user();
+        $profile = $user->getProfile();
+
+        if (!$profile) {
+            common_log_db_error($user, 'SELECT', __FILE__);
+            $this->server_error(_('User without matching profile'));
+            return;
+        }
+        
+        $original = $profile->getOriginalAvatar();
+
+
+        common_element_start('form', array('enctype' => 'multipart/form-data',
+                                           'method' => 'POST',
+                                           'id' => 'avatar',
+                                           'action' =>
+                                           common_local_url('profilesettings')));
+        common_hidden('token', common_session_token());
+
+        if ($original) {
+            common_element('img', array('src' => $original->url,
+                                        'class' => 'avatar original',
+                                        'width' => $original->width,
+                                        'height' => $original->height,
+                                        'alt' => $user->nickname));
+        }
+
+        $avatar = $profile->getAvatar(AVATAR_PROFILE_SIZE);
+
+        if ($avatar) {
+            common_element('img', array('src' => $avatar->url,
+                                        'class' => 'avatar profile',
+                                        'width' => AVATAR_PROFILE_SIZE,
+                                        'height' => AVATAR_PROFILE_SIZE,
+                                        'alt' => $user->nickname));
+        }
+
+
+        common_element('input', array('name' => 'MAX_FILE_SIZE',
+                                      'type' => 'hidden',
+                                      'id' => 'MAX_FILE_SIZE',
+                                      'value' => MAX_AVATAR_SIZE));
+
+        common_element_start('p');
+
+
+        common_element('input', array('name' => 'avatarfile',
+                                      'type' => 'file',
+                                      'id' => 'avatarfile'));
+        common_element_end('p');
+
+        common_submit('upload', _('Upload'));
+        common_element_end('form');
+
+    }
+
+    function show_password_form() {
+
+        $user = common_current_user();
+        common_element_start('form', array('method' => 'POST',
+                                           'id' => 'password',
+                                           'action' =>
+                                           common_local_url('profilesettings')));
+
+        common_hidden('token', common_session_token());
+
+        # Users who logged in with OpenID won't have a pwd
+        if ($user->password) {
+            common_password('oldpassword', _('Old password'));
+        }
+        common_password('newpassword', _('New password'),
+                        _('6 or more characters'));
+        common_password('confirm', _('Confirm'),
+                        _('same as password above'));
+        common_submit('changepass', _('Change'));
+        common_element_end('form');
+    }
+
+    function save_profile() {
+        $nickname = $this->trimmed('nickname');
+        $fullname = $this->trimmed('fullname');
+        $homepage = $this->trimmed('homepage');
+        $bio = $this->trimmed('bio');
+        $location = $this->trimmed('location');
+        $autosubscribe = $this->boolean('autosubscribe');
+        $language = $this->trimmed('language');
+        $timezone = $this->trimmed('timezone');
+        $tagstring = $this->trimmed('tags');
+        
+        # Some validation
+
+        if (!Validate::string($nickname, array('min_length' => 1,
+                                               'max_length' => 64,
+                                               'format' => VALIDATE_NUM . VALIDATE_ALPHA_LOWER))) {
+            $this->show_form(_('Nickname must have only lowercase letters and numbers and no spaces.'));
+            return;
+        } else if (!User::allowed_nickname($nickname)) {
+            $this->show_form(_('Not a valid nickname.'));
+            return;
+        } else if (!is_null($homepage) && (strlen($homepage) > 0) &&
+                   !Validate::uri($homepage, array('allowed_schemes' => array('http', 'https')))) {
+            $this->show_form(_('Homepage is not a valid URL.'));
+            return;
+        } else if (!is_null($fullname) && strlen($fullname) > 255) {
+            $this->show_form(_('Full name is too long (max 255 chars).'));
+            return;
+        } else if (!is_null($bio) && strlen($bio) > 140) {
+            $this->show_form(_('Bio is too long (max 140 chars).'));
+            return;
+        } else if (!is_null($location) && strlen($location) > 255) {
+            $this->show_form(_('Location is too long (max 255 chars).'));
+            return;
+        }  else if (is_null($timezone) || !in_array($timezone, DateTimeZone::listIdentifiers())) {
+            $this->show_form(_('Timezone not selected.'));
+            return;
+        } else if ($this->nickname_exists($nickname)) {
+            $this->show_form(_('Nickname already in use. Try another one.'));
+            return;
         } else if (!is_null($language) && strlen($language) > 50) {
-        	$this->show_form(_('Language is too long (max 50 chars).'));
-			return;
-		}
-
-		if ($tagstring) {
-			$tags = array_map('common_canonical_tag', preg_split('/[\s,]+/', $tagstring));
-		} else {
-			$tags = array();
-		}
-			
-		foreach ($tags as $tag) {
-			if (!common_valid_profile_tag($tag)) {
-				$this->show_form(sprintf(_('Invalid tag: "%s"'), $tag));
-				return;
-			}
-		}
-		
-		$user = common_current_user();
-
-		$user->query('BEGIN');
-
-		if ($user->nickname != $nickname ||
-			$user->language != $language ||
-			$user->timezone != $timezone) {
-
-			common_debug('Updating user nickname from ' . $user->nickname . ' to ' . $nickname,
-						 __FILE__);
-			common_debug('Updating user language from ' . $user->language . ' to ' . $language,
-						 __FILE__);
-			common_debug('Updating user timezone from ' . $user->timezone . ' to ' . $timezone,
-						 __FILE__);
-
-			$original = clone($user);
-
-			$user->nickname = $nickname;
-			$user->language = $language;
-			$user->timezone = $timezone;
-
-			$result = $user->updateKeys($original);
-
-			if ($result === FALSE) {
-				common_log_db_error($user, 'UPDATE', __FILE__);
-				common_server_error(_('Couldn\'t update user.'));
-				return;
-			} else {
-				# Re-initialize language environment if it changed
-				common_init_language();
-			}
-		}
-
-		# XXX: XOR
-
-		if ($user->autosubscribe ^ $autosubscribe) {
-
-			$original = clone($user);
-
-			$user->autosubscribe = $autosubscribe;
-
-			$result = $user->update($original);
-
-			if ($result === FALSE) {
-				common_log_db_error($user, 'UPDATE', __FILE__);
-				common_server_error(_('Couldn\'t update user for autosubscribe.'));
-				return;
-			}
-		}
-
-		$profile = $user->getProfile();
-
-		$orig_profile = clone($profile);
-
-		$profile->nickname = $user->nickname;
-		$profile->fullname = $fullname;
-		$profile->homepage = $homepage;
-		$profile->bio = $bio;
-		$profile->location = $location;
-		$profile->profileurl = common_profile_url($nickname);
-
-		common_debug('Old profile: ' . common_log_objstring($orig_profile), __FILE__);
-		common_debug('New profile: ' . common_log_objstring($profile), __FILE__);
-
-		$result = $profile->update($orig_profile);
-
-		if (!$result) {
-			common_log_db_error($profile, 'UPDATE', __FILE__);
-			common_server_error(_('Couldn\'t save profile.'));
-			return;
-		}
-
-		# Set the user tags
-		
-		$result = $user->setSelfTags($tags);
-
-		if (!$result) {
-			common_server_error(_('Couldn\'t save tags.'));
-			return;
-		}
-		
-		$user->query('COMMIT');
-
-		common_broadcast_profile($profile);
-
-		$this->show_form(_('Settings saved.'), TRUE);
-	}
-
-
-	function upload_avatar() {
-		switch ($_FILES['avatarfile']['error']) {
-		 case UPLOAD_ERR_OK: # success, jump out
-			break;
-		 case UPLOAD_ERR_INI_SIZE:
-		 case UPLOAD_ERR_FORM_SIZE:
-			$this->show_form(_('That file is too big.'));
-			return;
-		 case UPLOAD_ERR_PARTIAL:
-			@unlink($_FILES['avatarfile']['tmp_name']);
-			$this->show_form(_('Partial upload.'));
-			return;
-		 default:
-			$this->show_form(_('System error uploading file.'));
-			return;
-		}
-
-		$info = @getimagesize($_FILES['avatarfile']['tmp_name']);
-
-		if (!$info) {
-			@unlink($_FILES['avatarfile']['tmp_name']);
-			$this->show_form(_('Not an image or corrupt file.'));
-			return;
-		}
-
-		switch ($info[2]) {
-		 case IMAGETYPE_GIF:
-		 case IMAGETYPE_JPEG:
-		 case IMAGETYPE_PNG:
-			break;
-		 default:
-			$this->show_form(_('Unsupported image file format.'));
-			return;
-		}
-
-		$user = common_current_user();
-		$profile = $user->getProfile();
-
-		if ($profile->setOriginal($_FILES['avatarfile']['tmp_name'])) {
-			$this->show_form(_('Avatar updated.'), true);
-		} else {
-			$this->show_form(_('Failed updating avatar.'));
-		}
-
-		@unlink($_FILES['avatarfile']['tmp_name']);
-	}
-
-	function nickname_exists($nickname) {
-		$user = common_current_user();
-		$other = User::staticGet('nickname', $nickname);
-		if (!$other) {
-			return false;
-		} else {
-			return $other->id != $user->id;
-		}
-	}
-
-	function change_password() {
-
-		$user = common_current_user();
-		assert(!is_null($user)); # should already be checked
-
-		# FIXME: scrub input
-
-		$newpassword = $this->arg('newpassword');
-		$confirm = $this->arg('confirm');
-		$token = $this->arg('token');
-
-		if (0 != strcmp($newpassword, $confirm)) {
-			$this->show_form(_('Passwords don\'t match.'));
-			return;
-		}
-
-		if ($user->password) {
-			$oldpassword = $this->arg('oldpassword');
-
-			if (!common_check_user($user->nickname, $oldpassword)) {
-				$this->show_form(_('Incorrect old password'));
-				return;
-			}
-		}
-
-		$original = clone($user);
-
-		$user->password = common_munge_password($newpassword, $user->id);
-
-		$val = $user->validate();
-		if ($val !== TRUE) {
-			$this->show_form(_('Error saving user; invalid.'));
-			return;
-		}
-
-		if (!$user->update($original)) {
-			common_server_error(_('Can\'t save new password.'));
-			return;
-		}
-
-		$this->show_form(_('Password saved.'), true);
-	}
+            $this->show_form(_('Language is too long (max 50 chars).'));
+            return;
+        }
+
+        if ($tagstring) {
+            $tags = array_map('common_canonical_tag', preg_split('/[\s,]+/', $tagstring));
+        } else {
+            $tags = array();
+        }
+            
+        foreach ($tags as $tag) {
+            if (!common_valid_profile_tag($tag)) {
+                $this->show_form(sprintf(_('Invalid tag: "%s"'), $tag));
+                return;
+            }
+        }
+        
+        $user = common_current_user();
+
+        $user->query('BEGIN');
+
+        if ($user->nickname != $nickname ||
+            $user->language != $language ||
+            $user->timezone != $timezone) {
+
+            common_debug('Updating user nickname from ' . $user->nickname . ' to ' . $nickname,
+                         __FILE__);
+            common_debug('Updating user language from ' . $user->language . ' to ' . $language,
+                         __FILE__);
+            common_debug('Updating user timezone from ' . $user->timezone . ' to ' . $timezone,
+                         __FILE__);
+
+            $original = clone($user);
+
+            $user->nickname = $nickname;
+            $user->language = $language;
+            $user->timezone = $timezone;
+
+            $result = $user->updateKeys($original);
+
+            if ($result === FALSE) {
+                common_log_db_error($user, 'UPDATE', __FILE__);
+                common_server_error(_('Couldn\'t update user.'));
+                return;
+            } else {
+                # Re-initialize language environment if it changed
+                common_init_language();
+            }
+        }
+
+        # XXX: XOR
+
+        if ($user->autosubscribe ^ $autosubscribe) {
+
+            $original = clone($user);
+
+            $user->autosubscribe = $autosubscribe;
+
+            $result = $user->update($original);
+
+            if ($result === FALSE) {
+                common_log_db_error($user, 'UPDATE', __FILE__);
+                common_server_error(_('Couldn\'t update user for autosubscribe.'));
+                return;
+            }
+        }
+
+        $profile = $user->getProfile();
+
+        $orig_profile = clone($profile);
+
+        $profile->nickname = $user->nickname;
+        $profile->fullname = $fullname;
+        $profile->homepage = $homepage;
+        $profile->bio = $bio;
+        $profile->location = $location;
+        $profile->profileurl = common_profile_url($nickname);
+
+        common_debug('Old profile: ' . common_log_objstring($orig_profile), __FILE__);
+        common_debug('New profile: ' . common_log_objstring($profile), __FILE__);
+
+        $result = $profile->update($orig_profile);
+
+        if (!$result) {
+            common_log_db_error($profile, 'UPDATE', __FILE__);
+            common_server_error(_('Couldn\'t save profile.'));
+            return;
+        }
+
+        # Set the user tags
+        
+        $result = $user->setSelfTags($tags);
+
+        if (!$result) {
+            common_server_error(_('Couldn\'t save tags.'));
+            return;
+        }
+        
+        $user->query('COMMIT');
+
+        common_broadcast_profile($profile);
+
+        $this->show_form(_('Settings saved.'), TRUE);
+    }
+
+
+    function upload_avatar() {
+        switch ($_FILES['avatarfile']['error']) {
+         case UPLOAD_ERR_OK: # success, jump out
+            break;
+         case UPLOAD_ERR_INI_SIZE:
+         case UPLOAD_ERR_FORM_SIZE:
+            $this->show_form(_('That file is too big.'));
+            return;
+         case UPLOAD_ERR_PARTIAL:
+            @unlink($_FILES['avatarfile']['tmp_name']);
+            $this->show_form(_('Partial upload.'));
+            return;
+         default:
+            $this->show_form(_('System error uploading file.'));
+            return;
+        }
+
+        $info = @getimagesize($_FILES['avatarfile']['tmp_name']);
+
+        if (!$info) {
+            @unlink($_FILES['avatarfile']['tmp_name']);
+            $this->show_form(_('Not an image or corrupt file.'));
+            return;
+        }
+
+        switch ($info[2]) {
+         case IMAGETYPE_GIF:
+         case IMAGETYPE_JPEG:
+         case IMAGETYPE_PNG:
+            break;
+         default:
+            $this->show_form(_('Unsupported image file format.'));
+            return;
+        }
+
+        $user = common_current_user();
+        $profile = $user->getProfile();
+
+        if ($profile->setOriginal($_FILES['avatarfile']['tmp_name'])) {
+            $this->show_form(_('Avatar updated.'), true);
+        } else {
+            $this->show_form(_('Failed updating avatar.'));
+        }
+
+        @unlink($_FILES['avatarfile']['tmp_name']);
+    }
+
+    function nickname_exists($nickname) {
+        $user = common_current_user();
+        $other = User::staticGet('nickname', $nickname);
+        if (!$other) {
+            return false;
+        } else {
+            return $other->id != $user->id;
+        }
+    }
+
+    function change_password() {
+
+        $user = common_current_user();
+        assert(!is_null($user)); # should already be checked
+
+        # FIXME: scrub input
+
+        $newpassword = $this->arg('newpassword');
+        $confirm = $this->arg('confirm');
+        $token = $this->arg('token');
+
+        if (0 != strcmp($newpassword, $confirm)) {
+            $this->show_form(_('Passwords don\'t match.'));
+            return;
+        }
+
+        if ($user->password) {
+            $oldpassword = $this->arg('oldpassword');
+
+            if (!common_check_user($user->nickname, $oldpassword)) {
+                $this->show_form(_('Incorrect old password'));
+                return;
+            }
+        }
+
+        $original = clone($user);
+
+        $user->password = common_munge_password($newpassword, $user->id);
+
+        $val = $user->validate();
+        if ($val !== TRUE) {
+            $this->show_form(_('Error saving user; invalid.'));
+            return;
+        }
+
+        if (!$user->update($original)) {
+            common_server_error(_('Can\'t save new password.'));
+            return;
+        }
+
+        $this->show_form(_('Password saved.'), true);
+    }
 }