Merge pull request #4939 from astifter/better_curl_error_during_install

Better curl error during install.

.gitignore

@@ -9,6 +9,7 @@ include/jquery-1.4.2.min.js
 favicon.*
 home.html
 addon
+*.orig
 *~
 robots.txt
 

mod/install.php

@@ -303,12 +303,13 @@ function install_content(App $a) {
  * required : boolean
  * help		: string optional
  */
-function check_add(&$checks, $title, $status, $required, $help) {
+function check_add(&$checks, $title, $status, $required, $help, $error_msg = "") {
 	$checks[] = [
 		'title' => $title,
 		'status' => $status,
 		'required' => $required,
 		'help'	=> $help,
+		'error_msg' => $error_msg,
 	];
 }
 
@@ -489,18 +490,24 @@ function check_smarty3(&$checks) {
 function check_htaccess(&$checks) {
 	$status = true;
 	$help = "";
+	$error_msg = "";
 	if (function_exists('curl_init')) {
-		$test = Network::fetchUrl(System::baseUrl()."/install/testrewrite");
+		$test = Network::fetchUrlFull(System::baseUrl()."/install/testrewrite");
 
-		if ($test != "ok") {
+		$url = normalise_link(System::baseUrl()."/install/testrewrite");
-			$test = Network::fetchUrl(normalise_link(System::baseUrl()."/install/testrewrite"));
+		if ($test['body'] != "ok") {
+			$test = Network::fetchUrlFull($url);
 		}
 
-		if ($test != "ok") {
+		if ($test['body'] != "ok") {
 			$status = false;
 			$help = L10n::t('Url rewrite in .htaccess is not working. Check your server configuration.');
+			$error_msg = [];
+			$error_msg['head'] = L10n::t('Error message from Curl when fetching');
+			$error_msg['url'] = $test['redirect_url'];
+			$error_msg['msg'] = $test['error'];
 		}
-		check_add($checks, L10n::t('Url rewrite is working'), $status, true, $help);
+		check_add($checks, L10n::t('Url rewrite is working'), $status, true, $help, $error_msg);
 	} else {
 		// cannot check modrewrite if libcurl is not installed
 		/// @TODO Maybe issue warning here?

src/Util/Network.php

@@ -36,7 +36,30 @@ class Network
 	 */
 	public static function fetchUrl($url, $binary = false, &$redirects = 0, $timeout = 0, $accept_content = null, $cookiejar = 0)
 	{
-		$ret = self::curl(
+		$ret = fetchUrlFull($url, $binary, $redirects, $timeout, $accept_content, $cookiejar);
+
+		return $ret['body'];
+	}
+
+	/**
+	 * @brief Curl wrapper with array of return values.
+	 *
+	 * Inner workings and parameters are the same as @ref fetchUrl but returns an array with
+	 * all the information collected during the fetch.
+	 *
+	 * @param string  $url            URL to fetch
+	 * @param boolean $binary         default false
+	 *                                TRUE if asked to return binary results (file download)
+	 * @param integer $redirects      The recursion counter for internal use - default 0
+	 * @param integer $timeout        Timeout in seconds, default system config value or 60 seconds
+	 * @param string  $accept_content supply Accept: header with 'accept_content' as the value
+	 * @param string  $cookiejar      Path to cookie jar file
+	 *
+	 * @return array With all relevant information, 'body' contains the actual fetched content.
+	 */
+	public static function fetchUrlFull($url, $binary = false, &$redirects = 0, $timeout = 0, $accept_content = null, $cookiejar = 0)
+	{
+		return self::curl(
 			$url,
 			$binary,
 			$redirects,
@@ -45,8 +68,6 @@ class Network
 			'cookiejar'=>$cookiejar
 			]
 		);
-
-		return($ret['body']);
 	}
 
 	/**

view/install/style.css

@@ -32,6 +32,9 @@ td.help {
 td.help blockquote {
 	margin-left: 60px;
 }
+.error_header {
+	margin-left: 60px;
+}
 input[type="submit"] {
 	margin: 2em 0;
 }

view/templates/install_checks.tpl

@@ -16,7 +16,13 @@
 	{{/if}}
 	</td><td>{{if $check.required}}(required){{/if}}</td></tr>
 	{{if $check.help}}
-	<tr><td class="help" colspan="3"><blockquote>{{$check.help}}</blockquote></td></tr>
+	<tr><td class="help" colspan="3">
+		<blockquote>{{$check.help}}</blockquote>
+		{{if $check.error_msg}}
+		<div class="error_header"><b>{{$check.error_msg.head}}</br><a href="{{$check.error_msg.url}}">{{$check.error_msg.url}}</a></b></div>
+		<blockquote>{{$check.error_msg.msg}}</blockquote>
+		{{/if}}
+	</td></tr>
 	{{/if}}
 {{/foreach}}
 </table>