Fixes #4491. Automatic fallback to JS to test rewrite rules during installation.

3 files changed, 26 insertions, 1 deletions

diff --git a/install/ElggRewriteTester.php b/install/ElggRewriteTester.php
index c01510f60..ab68da2b7 100644
--- a/install/ElggRewriteTester.php
+++ b/install/ElggRewriteTester.php
@@ -154,6 +154,8 @@ class ElggRewriteTester {
 
 		if ($this->serverSupportsRemoteRead == FALSE) {
 			$msg = elgg_echo('install:warning:rewrite:unknown', array($url));
+			$msg .= elgg_view('install/js_rewrite_check', array('url' => $url));
+			
 			return array(
 				'severity' => 'warning',
 				'message' => $msg,
@@ -165,6 +167,8 @@ class ElggRewriteTester {
 			$msg = "$serverString\n\n";
 			if (!isset($this->htaccessIssue)) {
 				$msg .= elgg_echo('install:error:rewrite:allowoverride');
+				$msg .= elgg_view('install/js_rewrite_check', array('url' => $url));
+			
 				return array(
 					'severity' => 'failure',
 					'message' => $msg,
diff --git a/install/js/install.js b/install/js/install.js
index 49b2be10c..37e5b0dc3 100644
--- a/install/js/install.js
+++ b/install/js/install.js
@@ -19,3 +19,24 @@ $(function() {
 		}
 	});
 });
+
+elgg = {
+	installer: {}
+};
+
+/**
+ * Check the rewrite address for "success" and then allows the installation to proceed.
+ */
+elgg.installer.rewriteTest = function(url, success_msg, nextURL) {
+	$.ajax(url, {
+		success: function(data, status, xhr) {
+			if (data == 'success') {
+				$('.elgg-require-rewrite li').attr('class', 'pass');
+				$('.elgg-require-rewrite li').html('<p>' + success_msg + '</p>');
+				$('.elgg-install-nav a.elgg-state-disabled')
+					.removeClass('elgg-state-disabled')
+					.attr('href', nextURL);
+			}
+		}
+	});
+}
diff --git a/install/languages/en.php b/install/languages/en.php
index 3a692e020..b2583fbc9 100644
--- a/install/languages/en.php
+++ b/install/languages/en.php
@@ -154,7 +154,7 @@ If you are ready to proceed, click the Next button.",
 	'install:error:rewrite:htaccess:cannot_copy' => 'A unknown error occurred while creating the .htaccess file. You need to manually copy htaccess_dist to .htaccess in Elgg\'s directory.',
 	'install:error:rewrite:altserver' => 'The rewrite rules test failed. You need to configure your web server with Elgg\'s rewrite rules and try again.',
 	'install:error:rewrite:unknown' => 'Oof. We couldn\'t figure out what kind of web server is running on your server and it failed the rewrite rules. We cannot offer any specific advice. Please check the troubleshooting link.',
-	'install:warning:rewrite:unknown' => 'Your server does not support automatic testing of the rewrite rules. You can continue the installation, but you may experience problems with your site. You can manually test the rewrite rules by clicking this link: <a href="%s" target="_blank">test</a>. You will see the word success if the rules are working.',
+	'install:warning:rewrite:unknown' => 'Your server does not support automatic testing of the rewrite rules and your browser does not support checking via JavaScript. You can continue the installation, but you may experience problems with your site. You can manually test the rewrite rules by clicking this link: <a href="%s" target="_blank">test</a>. You will see the word success if the rules are working.',
 );
 
 add_translation("en", $english);