X-Git-Url: https://git.immae.eu/?a=blobdiff_plain;f=application%2FUrl.php;h=c5c7dd187bbc0d1f1f3d7aff97bbb4cfc375bb61;hb=7af9a41881ed0b9d44d18a0ce03a123a8441adf5;hp=23356f39d20514ade3f2391458678d6cb7b650c1;hpb=f8bf8d8e595a9128ebdf00091a648d186ba9a628;p=github%2Fshaarli%2FShaarli.git

diff --git a/application/Url.php b/application/Url.php
index 23356f39..c5c7dd18 100644
--- a/application/Url.php
+++ b/application/Url.php
@@ -25,6 +25,44 @@ function unparse_url($parsedUrl)
     return "$scheme$user$pass$host$port$path$query$fragment";
 }
 
+/**
+ * Removes undesired query parameters and fragments
+ *
+ * @param string url Url to be cleaned
+ *
+ * @return string the string representation of this URL after cleanup
+ */
+function cleanup_url($url)
+{
+  $obj_url = new Url($url);
+  return $obj_url->cleanup();
+}
+
+/**
+ * Get URL scheme.
+ *
+ * @param string url Url for which the scheme is requested
+ *
+ * @return mixed the URL scheme or false if none is provided.
+ */
+function get_url_scheme($url)
+{
+  $obj_url = new Url($url);
+  return $obj_url->getScheme();
+}
+
+/**
+ * Adds a trailing slash at the end of URL if necessary.
+ *
+ * @param string $url URL to check/edit.
+ *
+ * @return string $url URL with a end trailing slash.
+ */
+function add_trailing_slash($url)
+{
+    return $url . (!endsWith($url, '/') ? '/' : '');
+}
+
 /**
  * URL representation and cleanup utilities
  *
@@ -47,6 +85,7 @@ class Url
         'action_type_map=',
         'fb_',
         'fb=',
+        'PHPSESSID=',
 
         // Scoop.it
         '__scoop',
@@ -80,13 +119,47 @@ class Url
      */
     public function __construct($url)
     {
+        $url = self::cleanupUnparsedUrl(trim($url));
         $this->parts = parse_url($url);
+
+        if (!empty($url) && empty($this->parts['scheme'])) {
+            $this->parts['scheme'] = 'http';
+        }
     }
 
+    /**
+     * Clean up URL before it's parsed.
+     * ie. handle urlencode, url prefixes, etc.
+     *
+     * @param string $url URL to clean.
+     *
+     * @return string cleaned URL.
+     */
+    protected static function cleanupUnparsedUrl($url)
+    {
+        return self::removeFirefoxAboutReader($url);
+    }
+
+    /**
+     * Remove Firefox Reader prefix if it's present.
+     *
+     * @param string $input url
+     *
+     * @return string cleaned url
+     */
+    protected static function removeFirefoxAboutReader($input)
+    {
+        $firefoxPrefix = 'about://reader?url=';
+        if (startsWith($input, $firefoxPrefix)) {
+            return urldecode(ltrim($input, $firefoxPrefix));
+        }
+        return $input;
+    }
+    
     /**
      * Returns a string representation of this URL
      */
-    public function __toString()
+    public function toString()
     {
         return unparse_url($this->parts);
     }
@@ -145,6 +218,55 @@ class Url
     {
         $this->cleanupQuery();
         $this->cleanupFragment();
-        return $this->__toString();
+        return $this->toString();
+    }
+
+    /**
+     * Converts an URL with an International Domain Name host to a ASCII one.
+     * This requires PHP-intl. If it's not available, just returns this->cleanup().
+     *
+     * @return string converted cleaned up URL.
+     */
+    public function idnToAscii()
+    {
+        $out = $this->cleanup();
+        if (! function_exists('idn_to_ascii') || ! isset($this->parts['host'])) {
+            return $out;
+        }
+        $asciiHost = idn_to_ascii($this->parts['host']);
+        return str_replace($this->parts['host'], $asciiHost, $out);
+    }
+
+    /**
+     * Get URL scheme.
+     *
+     * @return string the URL scheme or false if none is provided.
+     */
+    public function getScheme() {
+        if (!isset($this->parts['scheme'])) {
+            return false;
+        }
+        return $this->parts['scheme'];
+    }
+
+    /**
+     * Get URL host.
+     *
+     * @return string the URL host or false if none is provided.
+     */
+    public function getHost() {
+        if (empty($this->parts['host'])) {
+            return false;
+        }
+        return $this->parts['host'];
+    }
+
+    /**
+     * Test if the Url is an HTTP one.
+     *
+     * @return true is HTTP, false otherwise.
+     */
+    public function isHttp() {
+        return strpos(strtolower($this->parts['scheme']), 'http') !== false;
     }
 }