htaccess: Add install step for a proper .htaccess

Install a new writeHtaccess() function in the install process that takes
/htaccess-dist and replaces {BASE_URL} for the appropiate value used by
RewriteBase to find Chamilo files.

This solves the problem of Chamilo installations that are not hosted on
a web server root. Namely, all the http://domain/chamilo-lms installs.

The method follows similar practice by WordPress where the .htaccess
file is generated by WordPress on demand when the user activates pretty
permalinks.

A follow–up commit enhances the safety of this process by making sure
the site URL is clean enough for RewriteBase.

.htaccess

@@ -1,39 +0,0 @@
-<IfModule mod_rewrite.c>
-    Options -MultiViews
-    Options +FollowSymLinks
-
-    RewriteEngine On
-    RewriteBase /
-
-    # Courses home
-    RewriteCond %{QUERY_STRING} ^id_session=0
-    RewriteRule ^courses/(.*)/(.*)$ web/courses/$1? [R,L]
-
-    RewriteCond %{QUERY_STRING} ^id_session=([0-9]*)
-    RewriteRule ^courses/(.*)/(.*)$ web/courses/$1/%1/? [R,L]
-
-    RewriteRule ^courses/(.*)/index.php$ web/courses/$1? [R,L]
-    RewriteRule ^courses/(.*)/$ web/courses/$1? [R,L]
-
-    # PHP Main files are redirected to the "web/main" zone
-
-    RewriteRule ^main/(.*)\.php web/main/$1.php [R,L]
-
-    # Courses documents
-    # courses/MATHS/document/folder1/picture.jpg --> web/data/courses/MATHS/document/folder1/picture.jpg
-    RewriteRule ^courses/(.*)/document/(.*)$ web/data/courses/$1/document/$2 [R,L]
-
-    # SCORM documents
-    # courses/MATHS/scorm/folder1/picture.jpg --> web/data/courses/MATHS/scorm/folder1/picture.jpg
-    RewriteRule ^courses/(.*)/scorm/(.*)$ web/data/courses/$1/scorm/$2 [R,L]
-
-    # Certificates
-    # Redirection: certificates/index.php?id=123 -> web/certificates/123
-    RewriteCond %{QUERY_STRING} ^id=([0-9]*)
-    RewriteRule ^certificates/(.*)$ web/certificates/%1? [R,L]
-
-    # Portal news
-    # news_list.php?id=5 --> web/news/5
-    RewriteCond %{QUERY_STRING} ^id=([0-9]*)
-    RewriteRule ^news_list.php?$ web/news/%1? [R,L]
-</IfModule>

htaccess-dist

@@ -3,7 +3,7 @@
     Options +FollowSymLinks
 
     RewriteEngine On
-    RewriteBase /
+    RewriteBase {BASE_URL}
 
     # Courses home
     RewriteCond %{QUERY_STRING} ^id_session=0
@@ -16,7 +16,7 @@
     RewriteRule ^courses/(.*)/$ web/courses/$1? [R,L]
 
     # PHP Main files are redirected to the "web/main" zone
-    RewriteCond %{REQUEST_URI} !main/newscorm/scorm_api.php
+
     RewriteRule ^main/(.*)\.php web/main/$1.php [R,L]
 
     # Courses documents
@@ -32,11 +32,6 @@
     RewriteCond %{QUERY_STRING} ^id=([0-9]*)
     RewriteRule ^certificates/(.*)$ web/certificates/%1? [R,L]
 
-    # User profile
-    # Redirection: user.php?jmontoya -> web/user/jmontoya
-    RewriteCond %{QUERY_STRING} ^([a-z0-9A-z]*)
-    RewriteRule ^user.php?$ web/user/%1? [R,L]
-
     # Portal news
     # news_list.php?id=5 --> web/news/5
     RewriteCond %{QUERY_STRING} ^id=([0-9]*)

vendor/chamilo/chash/src/Chash/Command/Installation/CommonCommand.php

@@ -576,6 +576,47 @@ class CommonCommand extends AbstractCommand
         }
     }
 
+    /**
+     * Writes an .htaccess file with the right RewriteBase path.
+     * @param string $path
+     * @return bool
+     *
+     */
+    public function writeHtaccess($path)
+    {
+        $portalSettings = $this->getPortalSettings();
+
+        /* This (almost) always returns a valid RewriteBase path.
+         *
+         * A few examples:
+         * http://localhost/    -> /
+         * http://localhost/chm -> /chm
+         *
+         * "Invalid" cases:
+         * http://localhost     -> null
+         * http://localhost///  -> ///
+         *
+         * We'll make sure that the path is never NULL, but we can't
+         * do much if the admin has allowed a bogus URL like any of the
+         * last two.
+         *
+         * There's another check for this in
+         * $app->match('/portal-settings', ...)
+         * in main/install/index.php.
+         */
+        $baseUrl = parse_url($portalSettings['institution_url'], PHP_URL_PATH);
+
+        // The second case should never happen, but let's play safe.
+        if ($baseUrl == null or substr($baseUrl, 0, 1) != '/') {
+            $baseUrl = '/';
+        }
+
+        $htaccessSrc = file_get_contents($path.'/htaccess-dist');
+        $htaccessFixed = str_replace('{BASE_URL}', $baseUrl, $htaccessSrc);
+
+        return file_put_contents($path.'/.htaccess', $htaccessFixed);
+    }
+
     /**
      * Writes the configuration file for the first time (install command)
      * @param string $version

vendor/chamilo/chash/src/Chash/Command/Installation/InstallCommand.php

@@ -379,6 +379,7 @@ class InstallCommand extends CommonCommand
 
                     // Generating config files (auth, profile, etc)
                     $this->generateConfFiles($output);
+                    $this->writeHtaccess($path);
 
                     $output->writeln("<comment>Chamilo was successfully installed here: ".$this->getRootSys()." </comment>");
                     return 1;