upload and change avatars

code to upload and change avatars.

combined some code in the settings area, too.

darcs-hash:20080517122045-84dde-8e13994e627805f29679c9533c2f62db81dc0925.gz

actions/avatar.php

@@ -0,0 +1,208 @@
+<?php
+/*
+ * Laconica - a distributed open-source microblogging tool
+ * Copyright (C) 2008, Controlez-Vous, Inc.
+ *
+ * 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/>.
+ */
+
+if (!defined('LACONICA')) { exit(1) }
+
+class AvatarAction extends SettingsAction {
+
+	function show_form($msg=NULL, $success=false) {
+		common_show_header(_t('Avatar'));
+		$this->settings_menu();
+		$this->message($msg, $success);
+
+		$user = common_current_user();
+		$profile = $user->getProfile();
+		$original = $profile->getOriginal();
+
+		if ($original) {
+			common_element('img', array('src' => $original->url,
+										'class' => 'avatar original',
+										'width' => $original->width,
+										'height' => $original->height));
+		}
+
+		$avatar = $profile->getAvatar(AVATAR_PROFILE_SIZE);
+
+		if ($avatar) {
+			common_element('img', array('src' => $avatar->url,
+										'class' => 'avatar profile',
+										'width' => AVATAR_PROFILE_SIZE,
+										'height' => AVATAR_PROFILE_SIZE));
+		}
+
+		common_start_element('form', array('enctype' => 'multipart/form-data',
+										   'method' => 'POST',
+										   'id' => 'avatar',
+										   'action' =>
+										   common_local_url('avatar')));
+		common_element('input', array('name' => 'MAX_FILE_SIZE',
+									  'type' => 'hidden',
+									  'id' => 'MAX_FILE_SIZE',
+									  'value' => MAX_AVATAR_SIZE));
+		common_element('input', array('name' => 'avatarfile',
+									  'type' => 'file',
+									  'id' => 'avatarfile'));
+		common_element('input', array('name' => 'submit',
+									  'type' => 'submit',
+									  'id' => 'submit'),
+					   _t('Upload'));
+	}
+
+	function handle_post() {
+
+		switch ($_FILES['avatarfile']['error']) {
+		 case UPLOAD_ERR_OK: # success, jump out
+			break;
+		 case UPLOAD_ERR_INI_SIZE:
+		 case UPLOAD_ERR_FORM_SIZE:
+			$this->show_form(_t('That file is too big.'));
+			return;
+		 case UPLOAD_ERR_PARTIAL:
+			@unlink($_FILES['avatarfile']['tmp_name']);
+			$this->show_form(_t('Partial upload.'));
+			return;
+		 default:
+			$this->show_form(_t('System error uploading file.'));
+			return;
+		}
+
+		$info = @getimagesize($_FILES['avatarfile']['tmp_name']);
+
+		if (!$info) {
+			@unlink($_FILES['avatarfile']['tmp_name']);
+			$this->show_form(_t('Not an image or corrupt file.'));
+			return;
+		}
+
+		switch ($info[2]) {
+		 case IMAGETYPE_GIF:
+		 case IMAGETYPE_JPEG:
+		 case IMAGETYPE_PNG:
+			break;
+		 default:
+			$this->show_form(_t('Unsupported image file format.'));
+			return;
+		}
+		
+		$user = common_current_user();
+
+		$filename = common_avatar_filename($user, image_type_to_extension($info[2]));
+		$filepath = common_avatar_path($filename);
+
+		if (!move_uploaded_file($_FILES['avatarfile']['tmp_name'], $filepath)) {
+			@unlink($_FILES['avatarfile']['tmp_name']);
+			$this->show_form(_t('System error uploading file.'));
+			return;
+		}
+
+		$avatar = DB_DataObject::factory('avatar');
+
+		$avatar->profile_id = $user->id;
+		$avatar->width = $info[0];
+		$avatar->height = $info[1];
+		$avatar->mediatype = image_type_to_mime_type($info[2]);
+		$avatar->filename = $filename;
+		$avatar->original = true;
+		$avatar->url = common_avatar_url($filename);
+
+		foreach (array(AVATAR_PROFILE_SIZE, AVATAR_STREAM_SIZE, AVATAR_MINI_SIZE) as $size) {
+			$scaled[] = $this->scale_avatar($user, $avatar, $size);
+		}
+
+		# XXX: start a transaction here
+
+		if (!$this->delete_old_avatars($user)) {
+			@unlink($filepath);
+			common_server_error(_t('Error deleting old avatars.'));
+			return;
+		}
+
+		if (!$avatar->insert()) {
+			@unlink($filepath);
+			common_server_error(_t('Error inserting avatar.'));
+			return;
+		}
+
+		foreach ($scaled as $s) {
+			if (!$s->insert()) {
+				common_server_error(_t('Error inserting scaled avatar.'));
+				return;
+			}
+		}
+
+		# XXX: end transaction here
+
+		$this->show_form(_t('Avatar updated.'), true);
+	}
+	
+	function scale_avatar($user, $avatar, $size) {
+		$image_s = imagecreatetruecolor($size, $size);
+		$image_a = $this->avatar_to_image($avatar);
+		
+		$square = min($avatar->width, $avatar->height);
+		
+		imagecopyresampled($image_s, $image_a, 0, 0, 0, 0,
+						   $size, $size, $square, $square);
+
+		$ext = ($avatar->mediattype == 'image/jpeg') ? ".jpg" : ".png";
+		
+		$filename = common_avatar_filename($user, $ext, $size);
+		
+		if ($avatar->mediatype == 'image/jpeg') {
+			imagejpeg($image_s, common_avatar_path($filename));
+		} else {
+			imagepng($image_s, common_avatar_path($filename));
+		}
+		
+		$scaled = DB_DataObject::factory('avatar');
+		$scaled->profile_id = $avatar->profile_id;
+		$scaled->width = $size;
+		$scaled->height = $size;
+		$scaled->original = false;
+		$scaled->mediatype = ($avatar->mediattype == 'image/jpeg') ? 'image/jpeg' : 'image/png';
+		$scaled->filename = $filename;
+		$scaled->url = common_avatar_url($filename);
+		
+		return $scaled;
+	}
+	
+	function avatar_to_image($avatar) {
+		$filepath = common_avatar_path($avatar->filename);
+		if ($avatar->mediatype == 'image/gif') {
+			return imagecreatefromgif($filepath);
+		} else if ($avatar->mediatype == 'image/jpeg') {
+			return imagecreatefromjpeg($filepath);			
+		} else if ($avatar->mediatype == 'image/png') {
+			return imagecreatefrompng($filepath);
+		} else {
+			common_server_error(_t('Unsupported image type:') . $avatar->mediatype);
+			return NULL;
+		}
+	}
+	
+	function delete_old_avatars($user) {
+		$avatar = DB_DataObject::factory('avatar');
+		$avatar->profile_id = $user->id;
+		$avatar->find();
+		while ($avatar->fetch()) {
+			$avatar->delete();
+		}
+	}
+}
+

actions/password.php

@@ -21,26 +21,10 @@ if (!defined('LACONICA')) { exit(1) }
 
 class PasswordAction extends SettingsAction {
 	
-	function handle($args) {
-		parent::handle($args);
-		if (!common_logged_in()) {
-			common_user_error(_t('Not logged in.'));
-			return;
-		}
-		if ($this->arg('METHOD') == 'POST') {
-			$this->handle_post();
-		} else {
-			$this->show_form();
-		}
-	}
-
 	function show_form($msg=NULL, $success=false) {
 		common_show_header(_t('Change password'));
 		$this->settings_menu();
-		if ($msg) {
-			common_element('div', ($success) ? 'success' : 'error',
-						   $msg);
-		}
+		$this->message($msg, $success);
 		common_start_element('form', array('method' => 'POST',
 										   'id' => 'password',
 										   'action' => 

actions/profilesettings.php

@@ -21,26 +21,10 @@ if (!defined('LACONICA')) { exit(1) }
 
 class ProfilesettingsAction extends SettingsAction {
 	
-	function handle($args) {
-		parent::handle($args);
-		if (!common_logged_in()) {
-			common_user_error(_t('Not logged in.'));
-			return;
-		}
-		if ($this->arg('METHOD') == 'POST') {
-			$this->handle_post();
-		} else {
-			$this->show_form();
-		}
-	}
-
 	function show_form($msg=NULL, $success=false) {
 		common_show_header(_t('Profile settings'));
 		$this->settings_menu();
-		if ($msg) {
-			common_element('div', ($success) ? 'success' : 'error',
-						   $msg);
-		}
+		$this->message($msg, $success);
 		common_start_element('form', array('method' => 'POST',
 										   'id' => 'profilesettings',
 										   'action' => 

db/stoica.sql

@@ -16,10 +16,11 @@ create table profile (
 
 create table avatar (
     profile_id integer not null comment 'foreign key to profile table' references profile (id),
+    original boolean default false comment 'uploaded by user or generated?',
     width integer not null comment 'image width',
     height integer not null comment 'image height',
-    original boolean default false comment 'uploaded by user or generated?',
     mediatype varchar(32) not null comment 'file type',
+    filename varchar(255) null comment 'local filename, if local',
     url varchar(255) unique key comment 'avatar location',
     
     constraint primary key (profile_id, width, height),

doc/TODO

@@ -1,7 +1,7 @@
 + login
 + register
 + settings
-- upload avatar
++ upload avatar
 - default avatar
 + change password
 + settings menu
@@ -18,9 +18,10 @@
 + header menu
 + footer menu
 + disallow direct to PHP files
+- require valid nicknames
+- store canonical username for comparison and fetch
 - use only canonical usernames
 - use only canonical email addresses
-- require valid nicknames
 - common_local_url()
 - configuration system ($config)
 - RSS 1.0 feeds of a user's notices
@@ -28,10 +29,12 @@
 - RSS 1.0 feed of all public notices
 - RDF dump of entire site
 - FOAF dump for user
-- delete a notice
-- licenses
+- license on showstream
+- license on shownotice
 - design from Open Source Web Designs
+- TOS checkbox on register
 - release 0.1
+- delete a notice
 - gettext
 - subscribe remote
 - add subscriber remote

lib/common.php

@@ -22,6 +22,7 @@ if (!defined('LACONICA')) { exit(1) }
 define('AVATAR_PROFILE_SIZE', 96);
 define('AVATAR_STREAM_SIZE', 48);
 define('AVATAR_MINI_SIZE', 24);
+define('MAX_AVATAR_SIZE', 256 * 1024);
 
 # global configuration object
 
@@ -30,6 +31,9 @@ define('AVATAR_MINI_SIZE', 24);
 $config =
   array('site' =>
 		array('name' => 'Just another µB'),
+		'avatar' =>
+		array('directory' => INSTALLDIR . 'files',
+			  'path' => '/files'),
 		'dsn' =>
 		array('phptype' => 'mysql',
 			  'username' => 'stoica',
@@ -228,6 +232,28 @@ function common_render_content($text) {
 	return htmlspecialchars($text);
 }
 
+// where should the avatar go for this user?
+
+function common_avatar_filename($user, $extension, $size=NULL) {
+	global $config;
+
+	if ($size) {
+		return $user->id . '-' . $size . $extension;
+	} else {
+		return $user->id . '-original' . $extension;
+	}
+}
+
+function common_avatar_path($filename) {
+	global $config;
+	return $config['avatar']['directory'] . '/' . $filename;
+}
+
+function common_avatar_url($filename) {
+	global $config;
+	return $config['avatar']['path'] . '/' . $filename;
+}
+
 // XXX: set up gettext
 
 function _t($str) { $str }

lib/settingsaction.php

@@ -23,6 +23,31 @@ class SettingsAction extends Action {
 
 	function handle($args) {
 		parent::handle($args);
+		if (!common_logged_in()) {
+			common_user_error(_t('Not logged in.'));
+			return;
+		}
+		if ($this->arg('METHOD') == 'POST') {
+			$this->handle_post();
+		} else {
+			$this->show_form();
+		}
+	}
+
+	# override!
+	function handle_post() {
+		return false;
+	}
+	
+	function show_form($msg=NULL, $success=false) {
+		return false;
+	}
+
+	function show_message($msg, $success) {
+		if ($msg) {
+			common_element('div', ($success) ? 'success' : 'error',
+						   $msg);
+		}
 	}
 	
 	function settings_menu() {