gnu-social/install.php

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<?php
/**
* Laconica - a distributed open-source microblogging tool
* Copyright (C) 2009, 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/>.
*/
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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()
{
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if (file_exists(INSTALLDIR.'/config.php')) {
?><p class="error">Config file &quot;config.php&quot; already exists.</p>
<?php
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return false;
}
if (version_compare(PHP_VERSION, '5.0.0', '<')) {
?><p class="error">Require PHP version 5 or greater.</p><?php
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return false;
}
$reqs = array('gd', 'mysql', 'curl',
'xmlwriter', 'mbstring',
'gettext');
foreach ($reqs as $req) {
if (!checkExtension($req)) {
?><p class="error">Cannot load required extension: <code><?php echo $req; ?></code></p><?php
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return false;
}
}
if (!is_writable(INSTALLDIR)) {
?><p class="error">Cannot write config file to: <code><?php echo INSTALLDIR; ?></code></p>
<p>On your server, try this command: <code>chmod a+w <?php echo INSTALLDIR; ?></code>
<?php
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return false;
}
if (!is_writable(INSTALLDIR.'/avatar/')) {
?><p class="error">Cannot write avatar directory: <code><?php echo INSTALLDIR; ?>/avatar/</code></p>
<p>On your server, try this command: <code>chmod a+w <?php echo INSTALLDIR; ?>/avatar/</code></p>
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<?
return false;
}
return true;
}
function checkExtension($name)
{
if (!extension_loaded($name)) {
if (!dl($name.'.so')) {
return false;
}
}
return true;
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}
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function showForm()
{
?>
</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>
<li>
<label for="host">Hostname</label>
<input type="text" id="host" name="host" />
<p class="form_guide">Database hostname</p>
</li>
<li>
<label for="host">Database</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</p>
</li>
</ul>
<input type="submit" name="submit" class="submit" value="Submit" />
</fieldset>
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</form>
<?php
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}
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function updateStatus($status, $error=false)
{
?>
<li <?php echo ($error) ? 'class="error"': ''; ?>><?print $status;?></li>
<?php
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}
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function handlePost()
{
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?>
<?php
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$host = $_POST['host'];
$database = $_POST['database'];
$username = $_POST['username'];
$password = $_POST['password'];
$sitename = $_POST['sitename'];
?>
<dl class="system_notice">
<dt>Page notice</dt>
<dd>
<ul>
<?php
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if (empty($host)) {
updateStatus("No hostname specified.", true);
showForm();
return;
}
if (empty($database)) {
updateStatus("No database specified.", true);
showForm();
return;
}
if (empty($username)) {
updateStatus("No username specified.", true);
showForm();
return;
}
if (empty($password)) {
updateStatus("No password specified.", true);
showForm();
return;
}
if (empty($sitename)) {
updateStatus("No sitename specified.", true);
showForm();
return;
}
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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;
}
updateStatus("Changing to database...");
$res = mysql_select_db($database, $conn);
if (!$res) {
updateStatus("Can't change to database.", true);
showForm();
return;
}
updateStatus("Running database script...");
$res = runDbScript(INSTALLDIR.'/db/laconica.sql', $conn);
if ($res === false) {
updateStatus("Can't run database script.", true);
showForm();
return;
}
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) {
updateStatus(sprintf("Can't run %d script.", $name), true);
showForm();
return;
}
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}
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updateStatus("Writing config file...");
$sqlUrl = "mysqli://$username:$password@$host/$database";
$res = writeConf($sitename, $sqlUrl);
if (!$res) {
updateStatus("Can't write config file.", true);
showForm();
return;
}
updateStatus("Done!");
?>
<?php
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}
function writeConf($sitename, $sqlUrl)
{
$res = file_put_contents(INSTALLDIR.'/config.php',
"<?php\n".
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"\$config['site']['name'] = \"$sitename\";\n\n".
"\$config['db']['database'] = \"$sqlUrl\";\n\n");
return $res;
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}
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function runDbScript($filename, $conn)
{
$sql = trim(file_get_contents($filename));
$stmts = explode(';', $sql);
foreach ($stmts as $stmt) {
$stmt = trim($stmt);
if (!mb_strlen($stmt)) {
continue;
}
$res = mysql_query($stmt, $conn);
if ($res === false) {
return $res;
}
}
return true;
}
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?>
<?php echo"<?"; ?> xml version="1.0" encoding="UTF-8" <?php echo "?>"; ?>
<!DOCTYPE html
PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en_US" lang="en_US">
<head>
<title>Install Laconica</title>
<link rel="stylesheet" type="text/css" href="theme/base/css/display.css?version=0.8" media="screen, projection, tv"/>
<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/earthy/css/ie.css?version=0.8" /><![endif]-->
</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="Laconica"/>
<span class="fn org">Laconica</span>
</a>
</address>
</div>
<div id="core">
<div id="content">
<h1>Install Laconica</h1>
<?php main(); ?>
</div>
</div>
</div>
</body>
</html>