gnu-social/install.php

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<?php
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/**
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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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*
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* @category Installation
* @package Installation
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*
* @author Adrian Lang <mail@adrianlang.de>
* @author Brenda Wallace <shiny@cpan.org>
* @author Brett Taylor <brett@webfroot.co.nz>
* @author Brion Vibber <brion@pobox.com>
* @author CiaranG <ciaran@ciarang.com>
* @author Craig Andrews <candrews@integralblue.com>
* @author Eric Helgeson <erichelgeson@gmail.com>
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* @author Evan Prodromou <evan@status.net>
* @author Robin Millette <millette@controlyourself.ca>
* @author Sarven Capadisli <csarven@status.net>
* @author Tom Adams <tom@holizz.com>
* @license GNU Affero General Public License http://www.gnu.org/licenses/
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* @version 0.9.x
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* @link http://status.net
*/
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define('INSTALLDIR', dirname(__FILE__));
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$external_libraries=array(
array(
'name'=>'gettext',
'url'=>'http://us.php.net/manual/en/book.gettext.php',
'check_function'=>'gettext'
),
array(
'name'=>'PEAR',
'url'=>'http://pear.php.net/',
'deb'=>'php-pear',
'include'=>'PEAR.php',
'check_class'=>'PEAR'
),
array(
'name'=>'DB',
'pear'=>'DB',
'url'=>'http://pear.php.net/package/DB',
'deb'=>'php-db',
'include'=>'DB/common.php',
'check_class'=>'DB_common'
),
array(
'name'=>'DB_DataObject',
'pear'=>'DB_DataObject',
'url'=>'http://pear.php.net/package/DB_DataObject',
'include'=>'DB/DataObject.php',
'check_class'=>'DB_DataObject'
),
array(
'name'=>'Console_Getopt',
'pear'=>'Console_Getopt',
'url'=>'http://pear.php.net/package/Console_Getopt',
'include'=>'Console/Getopt.php',
'check_class'=>'Console_Getopt'
),
array(
'name'=>'Facebook API',
'url'=>'http://developers.facebook.com/',
'include'=>'facebook/facebook.php',
'check_class'=>'Facebook'
),
array(
'name'=>'htmLawed',
'url'=>'http://www.bioinformatics.org/phplabware/internal_utilities/htmLawed',
'include'=>'htmLawed/htmLawed.php',
'check_function'=>'htmLawed'
),
array(
'name'=>'HTTP_Request',
'pear'=>'HTTP_Request',
'url'=>'http://pear.php.net/package/HTTP_Request',
'deb'=>'php-http-request',
'include'=>'HTTP/Request.php',
'check_class'=>'HTTP_Request'
),
array(
'name'=>'HTTP_Request2',
'pear'=>'HTTP_Request2',
'url'=>'http://pear.php.net/package/HTTP_Request2',
'include'=>'HTTP/Request2.php',
'check_class'=>'HTTP_Request2'
),
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array(
'name'=>'Mail',
'pear'=>'Mail',
'url'=>'http://pear.php.net/package/Mail',
'deb'=>'php-mail',
'include'=>'Mail.php',
'check_class'=>'Mail'
),
array(
'name'=>'Mail_mimeDecode',
'pear'=>'Mail_mimeDecode',
'url'=>'http://pear.php.net/package/Mail_mimeDecode',
'deb'=>'php-mail-mimedecode',
'include'=>'Mail/mimeDecode.php',
'check_class'=>'Mail_mimeDecode'
),
array(
'name'=>'Mime_Type',
'pear'=>'Mime_Type',
'url'=>'http://pear.php.net/package/Mime_Type',
'include'=>'MIME/Type.php',
'check_class'=>'Mime_Type'
),
array(
'name'=>'Net_URL_Mapper',
'pear'=>'Net_URL_Mapper',
'url'=>'http://pear.php.net/package/Net_URL_Mapper',
'include'=>'Net/URL/Mapper.php',
'check_class'=>'Net_URL_Mapper'
),
array(
'name'=>'Net_LDAP2',
'pear'=>'Net_LDAP2',
'url'=>'http://pear.php.net/package/Net_LDAP2',
'deb'=>'php-net-ldap2',
'include'=>'Net/LDAP2.php',
'check_class'=>'Net_LDAP2'
),
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array(
'name'=>'Net_Socket',
'pear'=>'Net_Socket',
'url'=>'http://pear.php.net/package/Net_Socket',
'deb'=>'php-net-socket',
'include'=>'Net/Socket.php',
'check_class'=>'Net_Socket'
),
array(
'name'=>'Net_SMTP',
'pear'=>'Net_SMTP',
'url'=>'http://pear.php.net/package/Net_SMTP',
'deb'=>'php-net-smtp',
'include'=>'Net/SMTP.php',
'check_class'=>'Net_SMTP'
),
array(
'name'=>'Net_URL',
'pear'=>'Net_URL',
'url'=>'http://pear.php.net/package/Net_URL',
'deb'=>'php-net-url',
'include'=>'Net/URL.php',
'check_class'=>'Net_URL'
),
array(
'name'=>'Net_URL2',
'pear'=>'Net_URL2',
'url'=>'http://pear.php.net/package/Net_URL2',
'include'=>'Net/URL2.php',
'check_class'=>'Net_URL2'
),
array(
'name'=>'Services_oEmbed',
'pear'=>'Services_oEmbed',
'url'=>'http://pear.php.net/package/Services_oEmbed',
'include'=>'Services/oEmbed.php',
'check_class'=>'Services_oEmbed'
),
array(
'name'=>'Stomp',
'url'=>'http://stomp.codehaus.org/PHP',
'include'=>'Stomp.php',
'check_class'=>'Stomp'
),
array(
'name'=>'System_Command',
'pear'=>'System_Command',
'url'=>'http://pear.php.net/package/System_Command',
'include'=>'System/Command.php',
'check_class'=>'System_Command'
),
array(
'name'=>'XMPPHP',
'url'=>'http://code.google.com/p/xmpphp',
'include'=>'XMPPHP/XMPP.php',
'check_class'=>'XMPPHP_XMPP'
),
array(
'name'=>'PHP Markdown',
'url'=>'http://www.michelf.com/projects/php-markdown/',
'include'=>'markdown.php',
'check_class'=>'Markdown_Parser'
),
array(
'name'=>'OAuth',
'url'=>'http://code.google.com/p/oauth-php',
'include'=>'OAuth.php',
'check_class'=>'OAuthRequest'
),
array(
'name'=>'Validate',
'pear'=>'Validate',
'url'=>'http://pear.php.net/package/Validate',
'include'=>'Validate.php',
'check_class'=>'Validate'
)
);
$dbModules = array(
'mysql' => array(
'name' => 'MySQL',
'check_module' => 'mysql', // mysqli?
'installer' => 'mysql_db_installer',
),
'pgsql' => array(
'name' => 'PostgreSQL',
'check_module' => 'pgsql',
'installer' => 'pgsql_db_installer',
),
);
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/**
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* the actual installation.
* If call libraries are present, then install
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*
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* @return void
*/
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function main()
{
if (!checkPrereqs()) {
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return;
}
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if (!empty($_GET['checklibs'])) {
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showLibs();
} else {
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if ($_SERVER['REQUEST_METHOD'] == 'POST') {
handlePost();
} else {
showForm();
}
}
}
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/**
* checks if an external libary is present
*
* @param string $external_library Name of library
*
* @return boolean indicates if library present
*/
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function haveExternalLibrary($external_library)
{
if (isset($external_library['include']) && !haveIncludeFile($external_library['include'])) {
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return false;
}
if (isset($external_library['check_function']) && ! function_exists($external_library['check_function'])) {
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return false;
}
if (isset($external_library['check_class']) && ! class_exists($external_library['check_class'])) {
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return false;
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}
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return true;
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}
// Attempt to include a PHP file and report if it worked, while
// suppressing the annoying warning messages on failure.
function haveIncludeFile($filename) {
$old = error_reporting(error_reporting() & ~E_WARNING);
$ok = include_once($filename);
error_reporting($old);
return $ok;
}
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/**
* Check if all is ready for installation
*
* @return void
*/
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function checkPrereqs()
{
$pass = true;
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if (file_exists(INSTALLDIR.'/config.php')) {
printf('<p class="error">Config file &quot;config.php&quot; already exists.</p>');
$pass = false;
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}
if (version_compare(PHP_VERSION, '5.2.3', '<')) {
printf('<p class="error">Require PHP version 5.2.3 or greater.</p>');
$pass = false;
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}
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$reqs = array('gd', 'curl',
'xmlwriter', 'mbstring','tidy');
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foreach ($reqs as $req) {
if (!checkExtension($req)) {
printf('<p class="error">Cannot load required extension: <code>%s</code></p>', $req);
$pass = false;
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}
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}
// Make sure we have at least one database module available
global $dbModules;
$missingExtensions = array();
foreach ($dbModules as $type => $info) {
if (!checkExtension($info['check_module'])) {
$missingExtensions[] = $info['check_module'];
}
}
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if (count($missingExtensions) == count($dbModules)) {
$req = implode(', ', $missingExtensions);
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printf('<p class="error">Cannot find mysql or pgsql extension. You need one or the other.');
$pass = false;
}
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if (!is_writable(INSTALLDIR)) {
printf('<p class="error">Cannot write config file to: <code>%s</code></p>', INSTALLDIR);
printf('<p>On your server, try this command: <code>chmod a+w %s</code>', INSTALLDIR);
$pass = false;
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}
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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)) {
printf('<p class="error">Cannot write to %s directory: <code>%s</code></p>', $fileSubdir, $fileFullPath);
printf('<p>On your server, try this command: <code>chmod a+w %s</code></p>', $fileFullPath);
$pass = false;
}
}
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return $pass;
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}
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/**
* Checks if a php extension is both installed and loaded
*
* @param string $name of extension to check
*
* @return boolean whether extension is installed and loaded
*/
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function checkExtension($name)
{
if (extension_loaded($name)) {
return true;
} elseif (function_exists('dl') && ini_get('enable_dl') && !ini_get('safe_mode')) {
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// dl will throw a fatal error if it's disabled or we're in safe mode.
// More fun, it may not even exist under some SAPIs in 5.3.0 or later...
$soname = $name . '.' . PHP_SHLIB_SUFFIX;
if (PHP_SHLIB_SUFFIX == 'dll') {
$soname = "php_" . $soname;
}
return @dl($soname);
} else {
return false;
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}
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}
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/**
* Show list of libraries
*
* @return void
*/
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function showLibs()
{
global $external_libraries;
$present_libraries=array();
$absent_libraries=array();
foreach ($external_libraries as $external_library) {
if (haveExternalLibrary($external_library)) {
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$present_libraries[]=$external_library;
} else {
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$absent_libraries[]=$external_library;
}
}
echo<<<E_O_T
<div class="instructions">
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<p>StatusNet comes bundled with a number of libraries required for the application to work. However, it is best that you use PEAR or you distribution to manage
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libraries instead, as they tend to provide security updates faster, and may offer improved performance.</p>
<p>On Debian based distributions, such as Ubuntu, use a package manager (such as &quot;aptitude&quot;, &quot;apt-get&quot;, and &quot;synaptic&quot;) to install the package listed.</p>
<p>On RPM based distributions, such as Red Hat, Fedora, CentOS, Scientific Linux, Yellow Dog Linux and Oracle Enterprise Linux, use a package manager (such as &quot;yum&quot;, &quot;apt-rpm&quot;, and &quot;up2date&quot;) to install the package listed.</p>
<p>On servers without a package manager (such as Windows), or if the library is not packaged for your distribution, you can use PHP's PEAR to install the library. Simply run &quot;pear install &lt;name&gt;&quot;.</p>
</div>
<h2>Absent Libraries</h2>
<ul id="absent_libraries">
E_O_T;
foreach ($absent_libraries as $library) {
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echo '<li>';
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if (isset($library['url'])) {
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echo '<a href="'.$library['url'].'">'.htmlentities($library['name']).'</a>';
} else {
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echo htmlentities($library['name']);
}
echo '<ul>';
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if (isset($library['deb'])) {
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echo '<li class="deb package">deb: <a href="apt:' . urlencode($library['deb']) . '">' . htmlentities($library['deb']) . '</a></li>';
}
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if (isset($library['rpm'])) {
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echo '<li class="rpm package">rpm: ' . htmlentities($library['rpm']) . '</li>';
}
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if (isset($library['pear'])) {
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echo '<li class="pear package">pear: ' . htmlentities($library['pear']) . '</li>';
}
echo '</ul>';
}
echo<<<E_O_T
</ul>
<h2>Installed Libraries</h2>
<ul id="present_libraries">
E_O_T;
foreach ($present_libraries as $library) {
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echo '<li>';
if (isset($library['url'])) {
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echo '<a href="'.$library['url'].'">'.htmlentities($library['name']).'</a>';
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} else {
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echo htmlentities($library['name']);
}
echo '</li>';
}
echo<<<E_O_T
</ul>
E_O_T;
}
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function showForm()
{
global $dbModules;
$dbRadios = '';
$checked = 'checked="checked" '; // Check the first one which exists
foreach ($dbModules as $type => $info) {
if (checkExtension($info['check_module'])) {
$dbRadios .= "<input type=\"radio\" name=\"dbtype\" id=\"dbtype-$type\" value=\"$type\" $checked/> $info[name]<br />\n";
$checked = '';
}
}
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>
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<p>StatusNet bundles a number of libraries for ease of installation. <a href="?checklibs=true">You can see what bundled libraries you are using, versus what libraries are installed on your server.</a>
</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>
$dbRadios
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<p class="form_guide">Database type</p>
</li>
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<li>
<label for="database">Name</label>
<input type="text" id="database" name="database" />
<p class="form_guide">Database name</p>
</li>
<li>
<label for="username">Username</label>
<input type="text" id="username" name="username" />
<p class="form_guide">Database username</p>
</li>
<li>
<label for="password">Password</label>
<input type="password" id="password" name="password" />
<p class="form_guide">Database password (optional)</p>
</li>
<li>
<label for="snapshot">Send stats to StatusNet Inc?</label>
<input type="checkbox" id="snapshot" name="snapshot" checked />
<p class="form_guide">Periodically send information about your site to StatusNet Inc</p>
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</li>
</ul>
<input type="submit" name="submit" class="submit" value="Submit" />
</fieldset>
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</form>
E_O_T;
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}
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function updateStatus($status, $error=false)
{
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echo '<li' . ($error ? ' class="error"': '' ) . ">$status</li>";
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}
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function handlePost()
{
$host = $_POST['host'];
$dbtype = $_POST['dbtype'];
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$database = $_POST['database'];
$username = $_POST['username'];
$password = $_POST['password'];
$sitename = $_POST['sitename'];
$snapshot = $_POST['snapshot'];
$fancy = !empty($_POST['fancy']);
$server = $_SERVER['HTTP_HOST'];
$path = substr(dirname($_SERVER['PHP_SELF']), 1);
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echo <<<STR
<dl class="system_notice">
<dt>Page notice</dt>
<dd>
<ul>
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STR;
$fail = false;
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if (empty($host)) {
updateStatus("No hostname specified.", true);
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$fail = true;
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}
if (empty($database)) {
updateStatus("No database specified.", true);
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$fail = true;
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}
if (empty($username)) {
updateStatus("No username specified.", true);
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$fail = true;
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}
if (empty($sitename)) {
updateStatus("No sitename specified.", true);
$fail = true;
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}
if ($fail) {
showForm();
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return;
}
global $dbModules;
$db = call_user_func($dbModules[$dbtype]['installer'], $host, $database, $username, $password);
if (!$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, $snapshot);
if (!$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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}
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function Pgsql_Db_installer($host, $database, $username, $password)
{
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$connstring = "dbname=$database host=$host user=$username";
//No password would mean trust authentication used.
if (!empty($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;
}
//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;
}
updateStatus("Running database script...");
//wrap in transaction;
pg_query($conn, 'BEGIN');
$res = runDbScript(INSTALLDIR.'/db/statusnet_pg.sql', $conn, 'pgsql');
if ($res === false) {
updateStatus("Can't run database script.", true);
showForm();
return false;
}
foreach (array('sms_carrier' => 'SMS carrier',
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'notice_source' => 'notice source',
'foreign_services' => 'foreign service')
as $scr => $name) {
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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.", $name), true);
showForm();
return false;
}
}
pg_query($conn, 'COMMIT');
if (empty($password)) {
$sqlUrl = "pgsql://$username@$host/$database";
} else {
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$sqlUrl = "pgsql://$username:$password@$host/$database";
}
$db = array('type' => 'pgsql', 'database' => $sqlUrl);
return $db;
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}
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function Mysql_Db_installer($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;
}
updateStatus("Changing to database...");
$res = mysql_select_db($database, $conn);
if (!$res) {
updateStatus("Can't change to database.", true);
showForm();
return false;
}
updateStatus("Running database script...");
$res = runDbScript(INSTALLDIR.'/db/statusnet.sql', $conn);
if ($res === false) {
updateStatus("Can't run database script.", true);
showForm();
return false;
}
foreach (array('sms_carrier' => 'SMS carrier',
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'notice_source' => 'notice source',
'foreign_services' => 'foreign service')
as $scr => $name) {
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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 false;
}
}
$sqlUrl = "mysqli://$username:$password@$host/$database";
$db = array('type' => 'mysql', 'database' => $sqlUrl);
return $db;
}
function writeConf($sitename, $server, $path, $fancy, $db, $snapshot)
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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
($fancy ? "\$config['site']['fancy'] = true;\n\n":'').
// send site stats to SNI
($snapshot ? "\$config['snapshot']['run'] = 'web';\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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/**
* Install schema into the database
*
* @param string $filename location of database schema file
* @param dbconn $conn connection to database
* @param string $type type of database, currently mysql or pgsql
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*
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* @return boolean - indicating success or failure
*/
function runDbScript($filename, $conn, $type = 'mysqli')
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{
$sql = trim(file_get_contents($filename));
$stmts = explode(';', $sql);
foreach ($stmts as $stmt) {
$stmt = trim($stmt);
if (!mb_strlen($stmt)) {
continue;
}
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// FIXME: use PEAR::DB or PDO instead of our own switch
switch ($type) {
case 'mysqli':
$res = mysql_query($stmt, $conn);
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if ($res === false) {
$error = mysql_error();
}
break;
case 'pgsql':
$res = pg_query($conn, $stmt);
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if ($res === false) {
$error = pg_last_error();
}
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("ERROR ($error) for SQL '$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
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 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>