Viewing File: /home/markqprx/SHORTLINK/includes/functions-install.php
<?php
/**
* Check if we have PDO installed, returns bool
*
* @since 1.7.3
* @return bool
*/
function yourls_check_PDO() {
return extension_loaded('pdo');
}
/**
* Check if server has MySQL 5.0+
*
* @return bool
*/
function yourls_check_database_version() {
return ( version_compare( '5.0', yourls_get_database_version() ) <= 0 );
}
/**
* Get DB version
*
* @since 1.7
* @return string sanitized DB version
*/
function yourls_get_database_version() {
// Allow plugins to short-circuit the whole function
$pre = yourls_apply_filter( 'shunt_get_database_version', false );
if ( false !== $pre ) {
return $pre;
}
return yourls_sanitize_version(yourls_get_db()->mysql_version());
}
/**
* Check if PHP > 7.2
*
* As of 1.8 we advertise YOURLS as being 7.4+ but it should work on 7.2 (although untested)
* so we don't want to strictly enforce a limitation that may not be necessary.
*
* @return bool
*/
function yourls_check_php_version() {
return version_compare( PHP_VERSION, '7.2.0', '>=' );
}
/**
* Check if server is an Apache
*
* @return bool
*/
function yourls_is_apache() {
if( !array_key_exists( 'SERVER_SOFTWARE', $_SERVER ) )
return false;
return (
strpos( $_SERVER['SERVER_SOFTWARE'], 'Apache' ) !== false
|| strpos( $_SERVER['SERVER_SOFTWARE'], 'LiteSpeed' ) !== false
);
}
/**
* Check if server is running IIS
*
* @return bool
*/
function yourls_is_iis() {
return ( array_key_exists( 'SERVER_SOFTWARE', $_SERVER ) ? ( strpos( $_SERVER['SERVER_SOFTWARE'], 'IIS' ) !== false ) : false );
}
/**
* Create .htaccess or web.config. Returns boolean
*
* @return bool
*/
function yourls_create_htaccess() {
$host = parse_url( yourls_get_yourls_site() );
$path = ( isset( $host['path'] ) ? $host['path'] : '' );
if ( yourls_is_iis() ) {
// Prepare content for a web.config file
$content = array(
'<?'.'xml version="1.0" encoding="UTF-8"?>',
'<configuration>',
' <system.webServer>',
' <security>',
' <requestFiltering allowDoubleEscaping="true" />',
' </security>',
' <rewrite>',
' <rules>',
' <rule name="YOURLS" stopProcessing="true">',
' <match url="^(.*)$" ignoreCase="false" />',
' <conditions>',
' <add input="{REQUEST_FILENAME}" matchType="IsFile" ignoreCase="false" negate="true" />',
' <add input="{REQUEST_FILENAME}" matchType="IsDirectory" ignoreCase="false" negate="true" />',
' </conditions>',
' <action type="Rewrite" url="'.$path.'/yourls-loader.php" appendQueryString="true" />',
' </rule>',
' </rules>',
' </rewrite>',
' </system.webServer>',
'</configuration>',
);
$filename = YOURLS_ABSPATH.'/web.config';
$marker = 'none';
} else {
// Prepare content for a .htaccess file
$content = array(
'<IfModule mod_rewrite.c>',
'RewriteEngine On',
'RewriteBase '.$path.'/',
'RewriteCond %{REQUEST_FILENAME} !-f',
'RewriteCond %{REQUEST_FILENAME} !-d',
'RewriteRule ^.*$ '.$path.'/yourls-loader.php [L]',
'</IfModule>',
);
$filename = YOURLS_ABSPATH.'/.htaccess';
$marker = 'YOURLS';
}
return ( yourls_insert_with_markers( $filename, $marker, $content ) );
}
/**
* Insert text into a file between BEGIN/END markers, return bool. Stolen from WP
*
* Inserts an array of strings into a file (eg .htaccess ), placing it between
* BEGIN and END markers. Replaces existing marked info. Retains surrounding
* data. Creates file if none exists.
*
* @since 1.3
*
* @param string $filename
* @param string $marker
* @param array $insertion
* @return bool True on write success, false on failure.
*/
function yourls_insert_with_markers( $filename, $marker, $insertion ) {
if ( !file_exists( $filename ) || is_writeable( $filename ) ) {
if ( !file_exists( $filename ) ) {
$markerdata = '';
} else {
$markerdata = explode( "\n", implode( '', file( $filename ) ) );
}
if ( !$f = @fopen( $filename, 'w' ) )
return false;
$foundit = false;
if ( $markerdata ) {
$state = true;
foreach ( $markerdata as $n => $markerline ) {
if ( strpos( $markerline, '# BEGIN ' . $marker ) !== false )
$state = false;
if ( $state ) {
if ( $n + 1 < count( $markerdata ) )
fwrite( $f, "{$markerline}\n" );
else
fwrite( $f, "{$markerline}" );
}
if ( strpos( $markerline, '# END ' . $marker ) !== false ) {
if ( $marker != 'none' )
fwrite( $f, "# BEGIN {$marker}\n" );
if ( is_array( $insertion ) )
foreach ( $insertion as $insertline )
fwrite( $f, "{$insertline}\n" );
if ( $marker != 'none' )
fwrite( $f, "# END {$marker}\n" );
$state = true;
$foundit = true;
}
}
}
if ( !$foundit ) {
if ( $marker != 'none' )
fwrite( $f, "\n\n# BEGIN {$marker}\n" );
foreach ( $insertion as $insertline )
fwrite( $f, "{$insertline}\n" );
if ( $marker != 'none' )
fwrite( $f, "# END {$marker}\n\n" );
}
fclose( $f );
return true;
} else {
return false;
}
}
/**
* Create MySQL tables. Return array( 'success' => array of success strings, 'errors' => array of error strings )
*
* @since 1.3
* @return array An array like array( 'success' => array of success strings, 'errors' => array of error strings )
*/
function yourls_create_sql_tables() {
// Allow plugins (most likely a custom db.php layer in user dir) to short-circuit the whole function
$pre = yourls_apply_filter( 'shunt_yourls_create_sql_tables', null );
// your filter function should return an array of ( 'success' => $success_msg, 'error' => $error_msg ), see below
if ( null !== $pre ) {
return $pre;
}
$ydb = yourls_get_db();
$error_msg = array();
$success_msg = array();
// Create Table Query
$create_tables = array();
$create_tables[YOURLS_DB_TABLE_URL] =
'CREATE TABLE IF NOT EXISTS `'.YOURLS_DB_TABLE_URL.'` ('.
'`keyword` varchar(100) CHARACTER SET utf8mb4 COLLATE utf8mb4_bin NOT NULL DEFAULT "",'.
'`url` text CHARACTER SET utf8mb4 COLLATE utf8mb4_bin NOT NULL,'.
'`title` text COLLATE utf8mb4_unicode_ci DEFAULT NULL,'.
'`timestamp` timestamp NOT NULL DEFAULT current_timestamp(),'.
'`ip` varchar(41) COLLATE utf8mb4_unicode_ci NOT NULL,'.
'`clicks` int(10) unsigned NOT NULL,'.
'PRIMARY KEY (`keyword`),'.
'KEY `ip` (`ip`),'.
'KEY `timestamp` (`timestamp`)'.
') DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_bin;';
$create_tables[YOURLS_DB_TABLE_OPTIONS] =
'CREATE TABLE IF NOT EXISTS `'.YOURLS_DB_TABLE_OPTIONS.'` ('.
'`option_id` bigint(20) unsigned NOT NULL auto_increment,'.
'`option_name` varchar(64) COLLATE utf8mb4_unicode_ci NOT NULL default "",'.
'`option_value` longtext COLLATE utf8mb4_unicode_ci NOT NULL,'.
'PRIMARY KEY (`option_id`,`option_name`),'.
'KEY `option_name` (`option_name`)'.
') AUTO_INCREMENT=1 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;';
$create_tables[YOURLS_DB_TABLE_LOG] =
'CREATE TABLE IF NOT EXISTS `'.YOURLS_DB_TABLE_LOG.'` ('.
'`click_id` int(11) NOT NULL auto_increment,'.
'`click_time` datetime NOT NULL,'.
'`shorturl` varchar(100) BINARY NOT NULL,'.
'`referrer` varchar(200) NOT NULL,'.
'`user_agent` varchar(255) NOT NULL,'.
'`ip_address` varchar(41) NOT NULL,'.
'`country_code` char(2) NOT NULL,'.
'PRIMARY KEY (`click_id`),'.
'KEY `shorturl` (`shorturl`)'.
') AUTO_INCREMENT=1 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci;';
$create_table_count = 0;
yourls_debug_mode(true);
// Create tables
foreach ( $create_tables as $table_name => $table_query ) {
$ydb->perform( $table_query );
$create_success = $ydb->fetchAffected( "SHOW TABLES LIKE '$table_name'" );
if( $create_success ) {
$create_table_count++;
$success_msg[] = yourls_s( "Table '%s' created.", $table_name );
} else {
$error_msg[] = yourls_s( "Error creating table '%s'.", $table_name );
}
}
// Initializes the option table
if( !yourls_initialize_options() )
$error_msg[] = yourls__( 'Could not initialize options' );
// Insert sample links
if( !yourls_insert_sample_links() )
$error_msg[] = yourls__( 'Could not insert sample short URLs' );
// Check results of operations
if ( sizeof( $create_tables ) == $create_table_count ) {
$success_msg[] = yourls__( 'YOURLS tables successfully created.' );
} else {
$error_msg[] = yourls__( 'Error creating YOURLS tables.' );
}
return array( 'success' => $success_msg, 'error' => $error_msg );
}
/**
* Initializes the option table
*
* Each yourls_update_option() returns either true on success (option updated) or false on failure (new value == old value, or
* for some reason it could not save to DB).
* Since true & true & true = 1, we cast it to boolean type to return true (or false)
*
* @since 1.7
* @return bool
*/
function yourls_initialize_options() {
return ( bool ) (
yourls_update_option( 'version', YOURLS_VERSION )
& yourls_update_option( 'db_version', YOURLS_DB_VERSION )
& yourls_update_option( 'next_id', 1 )
& yourls_update_option( 'active_plugins', array() )
);
}
/**
* Populates the URL table with a few sample links
*
* @since 1.7
* @return bool
*/
function yourls_insert_sample_links() {
$link1 = yourls_add_new_link( 'https://blog.yourls.org/', 'yourlsblog', 'YOURLS\' Blog' );
$link2 = yourls_add_new_link( 'https://yourls.org/', 'yourls', 'YOURLS: Your Own URL Shortener' );
$link3 = yourls_add_new_link( 'https://ozh.org/', 'ozh', 'ozh.org' );
return ( bool ) (
$link1['status'] == 'success'
& $link2['status'] == 'success'
& $link3['status'] == 'success'
);
}
/**
* Toggle maintenance mode. Inspired from WP. Returns true for success, false otherwise
*
* @param bool $maintenance True to enable, false to disable
* @return bool True on success, false on failure
*/
function yourls_maintenance_mode( $maintenance = true ) {
$file = YOURLS_ABSPATH . '/.maintenance' ;
// Turn maintenance mode on : create .maintenance file
if ( (bool)$maintenance ) {
if ( ! ( $fp = @fopen( $file, 'w' ) ) )
return false;
$maintenance_string = '<?php $maintenance_start = ' . time() . '; ?>';
@fwrite( $fp, $maintenance_string );
@fclose( $fp );
@chmod( $file, 0644 ); // Read and write for owner, read for everybody else
// Not sure why the fwrite would fail if the fopen worked... Just in case
return( is_readable( $file ) );
// Turn maintenance mode off : delete the .maintenance file
} else {
return @unlink($file);
}
}
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