gnu-social/install.php

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<?php
/**
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* StatusNet - the distributed open-source microblogging tool
* Copyright (C) 2009, StatusNet, 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/>.
*/
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define('INSTALLDIR', dirname(__FILE__));
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function main()
{
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if (!checkPrereqs())
{
return;
}
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if ($_SERVER['REQUEST_METHOD'] == 'POST') {
handlePost();
} else {
showForm();
}
}
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function checkPrereqs()
{
$pass = true;
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if (file_exists(INSTALLDIR.'/config.php')) {
?><p class="error">Config file &quot;config.php&quot; already exists.</p>
<?php
$pass = false;
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}
if (version_compare(PHP_VERSION, '5.2.3', '<')) {
?><p class="error">Require PHP version 5.2.3 or greater.</p><?php
$pass = false;
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}
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$reqs = array('gd', 'curl',
'xmlwriter', 'mbstring');
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foreach ($reqs as $req) {
if (!checkExtension($req)) {
?><p class="error">Cannot load required extension: <code><?php echo $req; ?></code></p><?php
$pass = false;
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}
}
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if (!checkExtension('pgsql') && !checkExtension('mysql')) {
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?><p class="error">Cannot find mysql or pgsql extension. You need one or the other: <code><?php echo $req; ?></code></p><?php
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$pass = false;
}
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if (!is_writable(INSTALLDIR)) {
?><p class="error">Cannot write config file to: <code><?php echo INSTALLDIR; ?></code></p>
<p>On your server, try this command: <code>chmod a+w <?php echo INSTALLDIR; ?></code>
<?php
$pass = false;
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}
// Check the subdirs used for file uploads
$fileSubdirs = array('avatar', 'background', 'file');
foreach ($fileSubdirs as $fileSubdir) {
$fileFullPath = INSTALLDIR."/$fileSubdir/";
if (!is_writable($fileFullPath)) {
?><p class="error">Cannot write <?php echo $fileSubdir; ?> directory: <code><?php echo $fileFullPath; ?></code></p>
<p>On your server, try this command: <code>chmod a+w <?php echo $fileFullPath; ?></code></p>
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<?php
$pass = false;
}
}
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return $pass;
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}
function checkExtension($name)
{
if (!extension_loaded($name)) {
if (!@dl($name.'.so')) {
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return false;
}
}
return true;
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}
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function showForm()
{
echo<<<E_O_T
</ul>
</dd>
</dl>
<dl id="page_notice" class="system_notice">
<dt>Page notice</dt>
<dd>
<div class="instructions">
<p>Enter your database connection information below to initialize the database.</p>
</div>
</dd>
</dl>
<form method="post" action="install.php" class="form_settings" id="form_install">
<fieldset>
<legend>Connection settings</legend>
<ul class="form_data">
<li>
<label for="sitename">Site name</label>
<input type="text" id="sitename" name="sitename" />
<p class="form_guide">The name of your site</p>
</li>
<li>
<label for="fancy-enable">Fancy URLs</label>
<input type="radio" name="fancy" id="fancy-enable" value="enable" checked='checked' /> enable<br />
<input type="radio" name="fancy" id="fancy-disable" value="" /> disable<br />
<p class="form_guide" id='fancy-form_guide'>Enable fancy (pretty) URLs. Auto-detection failed, it depends on Javascript.</p>
</li>
<li>
<label for="host">Hostname</label>
<input type="text" id="host" name="host" />
<p class="form_guide">Database hostname</p>
</li>
<li>
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<label for="dbtype">Type</label>
<input type="radio" name="dbtype" id="fancy-mysql" value="mysql" checked='checked' /> MySQL<br />
<input type="radio" name="dbtype" id="dbtype-pgsql" value="pgsql" /> PostgreSQL<br />
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<p class="form_guide">Database type</p>
</li>
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<li>
<label for="database">Name</label>
<input type="text" id="database" name="database" />
<p class="form_guide">Database name</p>
</li>
<li>
<label for="username">Username</label>
<input type="text" id="username" name="username" />
<p class="form_guide">Database username</p>
</li>
<li>
<label for="password">Password</label>
<input type="password" id="password" name="password" />
<p class="form_guide">Database password (optional)</p>
</li>
</ul>
<input type="submit" name="submit" class="submit" value="Submit" />
</fieldset>
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</form>
E_O_T;
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}
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function updateStatus($status, $error=false)
{
?>
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<li <?php echo ($error) ? 'class="error"': ''; ?>><?php echo $status;?></li>
<?php
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}
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function handlePost()
{
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?>
<?php
$host = $_POST['host'];
$dbtype = $_POST['dbtype'];
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$database = $_POST['database'];
$username = $_POST['username'];
$password = $_POST['password'];
$sitename = $_POST['sitename'];
$fancy = !empty($_POST['fancy']);
$server = $_SERVER['HTTP_HOST'];
$path = substr(dirname($_SERVER['PHP_SELF']), 1);
?>
<dl class="system_notice">
<dt>Page notice</dt>
<dd>
<ul>
<?php
$fail = false;
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if (empty($host)) {
updateStatus("No hostname specified.", true);
$fail = true;
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}
if (empty($database)) {
updateStatus("No database specified.", true);
$fail = true;
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}
if (empty($username)) {
updateStatus("No username specified.", true);
$fail = true;
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}
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// if (empty($password)) {
// updateStatus("No password specified.", true);
// $fail = true;
// }
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if (empty($sitename)) {
updateStatus("No sitename specified.", true);
$fail = true;
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}
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if($fail){
showForm();
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return;
}
switch($dbtype) {
case 'mysql':
$db = mysql_db_installer($host, $database, $username, $password);
break;
case 'pgsql':
$db = pgsql_db_installer($host, $database, $username, $password);
break;
default:
}
if (!$db) {
// database connection failed, do not move on to create config file.
return false;
}
updateStatus("Writing config file...");
$res = writeConf($sitename, $server, $path, $fancy, $db);
if (!$res) {
updateStatus("Can't write config file.", true);
showForm();
return;
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}
/*
TODO https needs to be considered
*/
$link = "http://".$server.'/'.$path;
updateStatus("StatusNet has been installed at $link");
updateStatus("You can visit your <a href='$link'>new StatusNet site</a>.");
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?>
<?php
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}
function pgsql_db_installer($host, $database, $username, $password) {
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$connstring = "dbname=$database host=$host user=$username";
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//No password would mean trust authentication used.
if (!empty($password)) {
$connstring .= " password=$password";
}
updateStatus("Starting installation...");
updateStatus("Checking database...");
$conn = pg_connect($connstring);
if ($conn ===false) {
updateStatus("Failed to connect to database: $connstring");
showForm();
return false;
}
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//ensure database encoding is UTF8
$record = pg_fetch_object(pg_query($conn, 'SHOW server_encoding'));
if ($record->server_encoding != 'UTF8') {
updateStatus("StatusNet requires UTF8 character encoding. Your database is ". htmlentities($record->server_encoding));
showForm();
return false;
}
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updateStatus("Running database script...");
//wrap in transaction;
pg_query($conn, 'BEGIN');
$res = runDbScript(INSTALLDIR.'/db/statusnet_pg.sql', $conn, 'pgsql');
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if ($res === false) {
updateStatus("Can't run database script.", true);
showForm();
return false;
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}
foreach (array('sms_carrier' => 'SMS carrier',
'notice_source' => 'notice source',
'foreign_services' => 'foreign service')
as $scr => $name) {
updateStatus(sprintf("Adding %s data to database...", $name));
$res = runDbScript(INSTALLDIR.'/db/'.$scr.'.sql', $conn, 'pgsql');
if ($res === false) {
updateStatus(sprintf("Can't run %d script.", $name), true);
showForm();
return false;
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}
}
pg_query($conn, 'COMMIT');
if (empty($password)) {
$sqlUrl = "pgsql://$username@$host/$database";
}
else {
$sqlUrl = "pgsql://$username:$password@$host/$database";
}
$db = array('type' => 'pgsql', 'database' => $sqlUrl);
return $db;
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}
function mysql_db_installer($host, $database, $username, $password) {
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updateStatus("Starting installation...");
updateStatus("Checking database...");
$conn = mysql_connect($host, $username, $password);
if (!$conn) {
updateStatus("Can't connect to server '$host' as '$username'.", true);
showForm();
return false;
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}
updateStatus("Changing to database...");
$res = mysql_select_db($database, $conn);
if (!$res) {
updateStatus("Can't change to database.", true);
showForm();
return false;
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}
updateStatus("Running database script...");
$res = runDbScript(INSTALLDIR.'/db/statusnet.sql', $conn);
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if ($res === false) {
updateStatus("Can't run database script.", true);
showForm();
return false;
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}
foreach (array('sms_carrier' => 'SMS carrier',
'notice_source' => 'notice source',
'foreign_services' => 'foreign service')
as $scr => $name) {
updateStatus(sprintf("Adding %s data to database...", $name));
$res = runDbScript(INSTALLDIR.'/db/'.$scr.'.sql', $conn);
if ($res === false) {
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updateStatus(sprintf("Can't run %d script.", $name), true);
showForm();
return false;
}
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}
$sqlUrl = "mysqli://$username:$password@$host/$database";
$db = array('type' => 'mysql', 'database' => $sqlUrl);
return $db;
}
function writeConf($sitename, $server, $path, $fancy, $db)
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{
// assemble configuration file in a string
$cfg = "<?php\n".
"if (!defined('STATUSNET') && !defined('LACONICA')) { exit(1); }\n\n".
// site name
"\$config['site']['name'] = '$sitename';\n\n".
// site location
"\$config['site']['server'] = '$server';\n".
"\$config['site']['path'] = '$path'; \n\n".
// checks if fancy URLs are enabled
($fancy ? "\$config['site']['fancy'] = true;\n\n":'').
// database
"\$config['db']['database'] = '{$db['database']}';\n\n".
($db['type'] == 'pgsql' ? "\$config['db']['quote_identifiers'] = true;\n\n":'').
"\$config['db']['type'] = '{$db['type']}';\n\n".
"?>";
// write configuration file out to install directory
$res = file_put_contents(INSTALLDIR.'/config.php', $cfg);
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return $res;
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}
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function runDbScript($filename, $conn, $type = 'mysql')
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{
$sql = trim(file_get_contents($filename));
$stmts = explode(';', $sql);
foreach ($stmts as $stmt) {
$stmt = trim($stmt);
if (!mb_strlen($stmt)) {
continue;
}
switch ($type) {
case 'mysql':
$res = mysql_query($stmt, $conn);
break;
case 'pgsql':
$res = pg_query($conn, $stmt);
break;
default:
updateStatus("runDbScript() error: unknown database type ". $type ." provided.");
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}
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if ($res === false) {
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updateStatus("FAILED SQL: $stmt");
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return $res;
}
}
return true;
}
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?>
<?php echo"<?"; ?> xml version="1.0" encoding="UTF-8" <?php echo "?>"; ?>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en_US" lang="en_US">
<head>
<title>Install StatusNet</title>
<link rel="shortcut icon" href="favicon.ico"/>
<link rel="stylesheet" type="text/css" href="theme/default/css/display.css?version=0.8" media="screen, projection, tv"/>
<!--[if IE]><link rel="stylesheet" type="text/css" href="theme/base/css/ie.css?version=0.8" /><![endif]-->
<!--[if lte IE 6]><link rel="stylesheet" type="text/css" theme/base/css/ie6.css?version=0.8" /><![endif]-->
<!--[if IE]><link rel="stylesheet" type="text/css" href="theme/default/css/ie.css?version=0.8" /><![endif]-->
<script src="js/jquery.min.js"></script>
<script src="js/install.js"></script>
</head>
<body id="install">
<div id="wrap">
<div id="header">
<address id="site_contact" class="vcard">
<a class="url home bookmark" href=".">
<img class="logo photo" src="theme/default/logo.png" alt="StatusNet"/>
<span class="fn org">StatusNet</span>
</a>
</address>
</div>
<div id="core">
<div id="content">
<h1>Install StatusNet</h1>
<?php main(); ?>
</div>
</div>
</div>
</body>
</html>