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<?php
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// $Id: settings_custom_url.inc,v 1.24 2009/10/24 16:18:52 agentken Exp $
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/**
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* @file
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* Include file for settings.php to provide advanced
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* functionality for rewriting links as needed.
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*
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* @ingroup domain
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*/
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/**
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* Implement custom_url_rewrite_outbound() if the url_alter.module is not enabled.
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*/
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if (!function_exists('custom_url_rewrite_outbound')) {
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function custom_url_rewrite_outbound(&$path, &$options, $original_path) {
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domain_url_outbound_alter($path, $options, $original_path);
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}
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}
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/**
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* Legacy wrapper for users of 6.x.2, rc8.
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*/
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function domain_url_rewrite_outbound(&$path, &$options, $original_path) {
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domain_url_outbound_alter($path, $options, $original_path);
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}
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/**
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* Implement hook_url_outbound_alter().
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*
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* Forces absolute paths for domains when needed.
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*/
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function domain_url_outbound_alter(&$path, &$options, $original_path) {
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global $_domain;
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// If the domain_id is not set, then the Domain module is not active, and we cannot run this function.
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if (!isset($_domain['domain_id'])) {
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return;
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}
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// Set static variables for the node lookups, to remove redundant queries.
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static $domain_site, $domain, $nodepaths, $path_rewrite, $use_source, $root, $check_nodes, $path_lookup, $path_alter;
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// This routine only needs to be run from certain urls or if we want to
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// force all links to go to a single domain for SEO.
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// See http://drupal.org/node/195366 for the background.
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// These two functions are statically cached elsewhere.
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// Are we viewing nodes from all sites?
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$check = domain_grant_all();
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// Are we forcing path rewrites?
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$seo = variable_get('domain_seo', 0);
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// Check for source rewrites.
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if (!isset($use_source)) {
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$use_source = (bool) count(module_implements('domain_source_alter'));
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}
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// Querying for nodepaths is expensive, so only do it if needed.
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if (!isset($check_nodes)) {
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$check_nodes = $check || $seo || $use_source;
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}
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// Check for path rewrites.
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if (!isset($path_alter)) {
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$path_alter = (bool) count(module_implements('domain_source_path_alter'));
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}
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// Get the root url.
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if (!isset($root)) {
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$root = domain_lookup(variable_get('domain_default_source', 0));
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}
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// Now run the path rewrite sequence, if necessary.
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if ($check_nodes || $path_alter) {
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$nid = FALSE;
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$target_domain_id = $_domain['domain_id'];
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if ($check_nodes) {
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// Check to see if this is a node or comment link and set $nid accordingly.
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// We static the $nid results to make this more efficient.
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$pattern = explode('/', $original_path);
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// Advanced pattern matching, we find the node id based on token %n in the path string.
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if (!isset($nodepaths)) {
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$pathdata = variable_get('domain_paths', "node/%n\r\nnode/%n/edit\r\ncomment/reply/%n\r\nnode/add/book/parent/%n\r\nbook/export/html/%n\r\nnode/%n/outline");
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$path_match = preg_replace('/(\r\n?|\n)/', '|', $pathdata);
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$nodepaths = explode("|", $path_match);
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}
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foreach ($nodepaths as $match) {
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$match_array = explode('/', $match);
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$placeholder = array_search('%n', $match_array);
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if (isset($pattern[$placeholder])) {
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$match_array[$placeholder] = $pattern[$placeholder];
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if (is_numeric($pattern[$placeholder]) && $match_array == $pattern) {
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$nid = (int) $pattern[$placeholder];
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break;
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}
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}
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}
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}
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// This path has matched a node id, so it may need to be rewritten.
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if (!empty($nid)) {
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// Remove redundancy from the domain_site check.
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if (!isset($domain_site[$nid])) {
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// If this check works, we don't need to rewrite the path unless SEO rules demand it.
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$domain_site[$nid] = db_result(db_query("SELECT COUNT(nid) FROM {domain_access} WHERE nid = %d AND gid = 0 AND realm = '%s'", $nid, 'domain_site'));
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}
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if (!$domain_site[$nid] || $use_source) {
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// Remove rendundancy from the domain_id check.
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if (!isset($domain[$nid])) {
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$domain[$nid] = domain_get_node_match($nid);
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}
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// Can we and do we need to rewrite this path?
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if ($domain[$nid] != -1 && $domain[$nid]['domain_id'] != $_domain['domain_id']) {
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$options['absolute'] = TRUE;
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// In this case, the $base_url cannot have a trailing slash
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$options['base_url'] = rtrim($domain[$nid]['path'], '/');
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// Domain Source trumps the seo rules below.
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if ($use_source) {
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$seo = FALSE;
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}
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$target_domain_id = $domain[$nid]['domain_id'];
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}
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}
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// If strict SEO rules are enabled, we set "all affiliate" links to the root domain.
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// Only needed if we are not on the default source domain.
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else if ($root != -1 && $seo && $_domain['domain_id'] != $root['domain_id']) {
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$options['absolute'] = TRUE;
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// In this case, the $base_url cannot have a trailing slash
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$options['base_url'] = rtrim($root['path'], '/');
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$target_domain_id = $root['domain_id'];
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}
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}
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// Hook for non-node paths.
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else if (!empty($path_alter)) {
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// Must use md5 here, to prevent array keys from breaking.
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$name = md5($path);
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if (!isset($path_lookup[$name])) {
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$path_lookup[$name] = domain_get_path_match($path);
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}
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if ($path_lookup[$name] != $_domain) {
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$options['absolute'] = TRUE;
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// In this case, the $base_url cannot have a trailing slash
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$options['base_url'] = rtrim($path_lookup[$name]['path'], '/');
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$target_domain_id = $path_lookup[$name]['domain_id'];
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// TODO: merge this code with the above for cleanup.
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}
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}
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// We may have to implement hook_domainpath().
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if (!isset($path_rewrite)) {
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$path_rewrite = count(_domain_path_modules());
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}
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// Allow path changes, if needed.
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if ($path_rewrite > 0 && $path != '') {
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$path = domain_path($target_domain_id, $original_path, isset($options['language']) ? $options['language']->language : '');
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}
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}
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}
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