First release of domframework

git-svn-id: https://svn.fournier38.fr/svn/ProgSVN/trunk@1207 bf3deb0d-5f1a-0410-827f-c0cc1f45334c

http.php

@@ -0,0 +1,55 @@
+<?php
+class http
+{
+  /** Choose the best choice from user choices.
+      Can be used for languages (HTTP_ACCEPT_LANGUAGE), type of pages 
+      (HTTP_ACCEPT)...
+      Ex. fr, en-gb;q=0.8, en;q=0.7
+      Ex. text/html,application/xhtml+xml,application/xml;q=0.9,* /*;q=0.8
+      If available is empty, then return the best priority defined by user,
+      and throw an exception if nothing is provided for by the user.
+      If nothing match, return $default
+    */
+  function bestChoice ($uservar, $available=array(), $default=FALSE)
+  {
+    $uservar = str_replace (" ", "", $uservar);
+    $userchoices = explode (",", $uservar);
+    if (!isset ($userchoices[0]))
+    {
+      if ($default === FALSE)
+        throw new Exception ("No user choice provided to bestChoice", 500);
+      return $default;
+    }
+    // Remove weights (provided by the order of the user)
+    // TODO : Reorganise the order if the weights are not in the right order
+    foreach ($userchoices as $key=>$val)
+    {
+      $vals = @explode (";q", $val);
+      $userchoices[$key] = $vals[0];
+    }
+
+    if (count ($available) === 0)
+      return $userchoices[0];
+
+    // Look at the best existing solution
+    foreach ($userchoices as $choice)
+    {
+      foreach ($available as $avail)
+      {
+        if (strtolower ($avail) === strtolower ($choice))
+          return $avail;
+        // Case en_US
+        $availTmp = str_replace ("_", "-", $avail);
+        if (strtolower ($availTmp) === strtolower ($choice))
+          return $avail;
+        // Case text/xml, application/csv (just compare xml or csv)
+        $mimes = explode ("/", $choice);
+        if (isset ($mimes[1]) && strtolower ($availTmp) === $mimes[1])
+          return $avail;
+      }
+    }
+
+    // No best solution found. Use the default available solution
+    return $default;
+  }
+}