BUG 10087 "PM functions y Web Services de ProcessMaker no..." SOLVED

- Problem with the variable $_SESSION
- The variable $_SESSION should not lose the default values ..set
- Added functions to save and restore the values ..of the variable $_SESSION
- Revised class.pmFunctions.php functions and class.wsBase.php
- The QA team should test this functions (most of these functions running
  triggers, try running triggers):
    PMFAddInputDocument
    PMFGenerateOutputDocument
    PMFDerivateCase, WSDerivateCase, wsBase::derivateCase
    PMFNewCase, WSNewCase, wsBase::newCase
    PMFRedirectToStep
    PMFDeleteCase, WSDeleteCase, wsBase::deleteCase
    PMFCancelCase, WSCancelCase, wsBase::cancelCase
    PMFPauseCase, WSPauseCase, wsBase::pauseCase
    PMFUnpauseCase, WSUnpauseCase, wsBase::unpauseCase
    wsBase::executeTrigger
    wsBase::reassignCase
* Available from version 2.0.46

gulliver/system/class.g.php

@@ -30,6 +30,8 @@
 
 class G
 {
+    public $sessionVar = array(); //SESSION temporary array store.
+
     /**
      * is_https
      * @return void
@@ -3130,7 +3132,7 @@ class G
         } else {
             $setup['MESS_RAUTH'] = 1;
         }
-        
+
         if (count($setup) == 0 || !isset($setup['MESS_ENGINE']) || !isset($setup['MESS_SERVER'])
             || !isset($setup['MESS_ENABLED']) || !isset($setup['MESS_RAUTH']) || $setup['MESS_SERVER'] == '') {
             return G::LoadTranslation('ID_EMAIL_ENGINE_IS_NOT_CONFIGURED');
@@ -4763,6 +4765,90 @@ class G
         }
         return false;
     }
+
+    /**
+     * Save the $_SESSION variables into $sessionVar array, to unset them temporary.
+     *
+     */
+    public function sessionVarSave()
+    {
+        //Unset any variable
+        $this->sessionVar = array();
+
+        if (isset($_SESSION["APPLICATION"])) {
+            $this->sessionVar["APPLICATION"] = $_SESSION["APPLICATION"];
+        }
+
+        if (isset($_SESSION["INDEX"])) {
+            $this->sessionVar["INDEX"] = $_SESSION["INDEX"];
+        }
+
+        if (isset($_SESSION["PROCESS"])) {
+            $this->sessionVar["PROCESS"] = $_SESSION["PROCESS"];
+        }
+
+        if (isset($_SESSION["TASK"])) {
+            $this->sessionVar["TASK"] = $_SESSION["TASK"];
+        }
+
+        if (isset($_SESSION["USER_LOGGED"])) {
+            $this->sessionVar["USER_LOGGED"] = $_SESSION["USER_LOGGED"];
+        }
+
+        if (isset($_SESSION["USR_USERNAME"])) {
+            $this->sessionVar["USR_USERNAME"] = $_SESSION["USR_USERNAME"];
+        }
+
+        if (isset($_SESSION["STEP_POSITION"])) {
+            $this->sessionVar["STEP_POSITION"] = $_SESSION["STEP_POSITION"];
+        }
+    }
+
+    /**
+     * Restore the session variables with values of $sessionVar array, if this is set.
+     *
+     */
+    public function sessionVarRestore()
+    {
+        if (count($this->sessionVar) > 0) {
+            //Restore original values
+            unset($_SESSION["APPLICATION"]);
+            unset($_SESSION["INDEX"]);
+            unset($_SESSION["PROCESS"]);
+            unset($_SESSION["TASK"]);
+            unset($_SESSION["USER_LOGGED"]);
+            unset($_SESSION["USR_USERNAME"]);
+            unset($_SESSION["STEP_POSITION"]);
+
+            if (isset($this->sessionVar["APPLICATION"])) {
+                $_SESSION["APPLICATION"] = $this->sessionVar["APPLICATION"];
+            }
+
+            if (isset($this->sessionVar["INDEX"])) {
+                $_SESSION["INDEX"] = $this->sessionVar["INDEX"];
+            }
+
+            if (isset($this->sessionVar["PROCESS"])) {
+                $_SESSION["PROCESS"] = $this->sessionVar["PROCESS"];
+            }
+
+            if (isset($this->sessionVar["TASK"])) {
+                $_SESSION["TASK"] = $this->sessionVar["TASK"];
+            }
+
+            if (isset($this->sessionVar["USER_LOGGED"])) {
+                $_SESSION["USER_LOGGED"] = $this->sessionVar["USER_LOGGED"];
+            }
+
+            if (isset($this->sessionVar["USR_USERNAME"])) {
+                $_SESSION["USR_USERNAME"] = $this->sessionVar["USR_USERNAME"];
+            }
+
+            if (isset($this->sessionVar["STEP_POSITION"])) {
+                $_SESSION["STEP_POSITION"] = $this->sessionVar["STEP_POSITION"];
+            }
+        }
+    }
 }
 
 /**

workflow/engine/classes/class.pmFunctions.php

@@ -1485,6 +1485,16 @@ function PMFAddInputDocument(
     $file = "path_to_file/myfile.txt"
 ) {
     G::LoadClass("case");
+
+    $g = new G();
+
+    $g->sessionVarSave();
+
+    $_SESSION["APPLICATION"] = $caseUid;
+    $_SESSION["INDEX"] = $delIndex;
+    $_SESSION["TASK"] = $taskUid;
+    $_SESSION["USER_LOGGED"] = $userUid;
+
     $case = new Cases();
 
     $appDocUid = $case->addInputDocument(
@@ -1502,6 +1512,8 @@ function PMFAddInputDocument(
         $file
     );
 
+    $g->sessionVarRestore();
+
     return $appDocUid;
 }
 
@@ -1518,14 +1530,26 @@ function PMFAddInputDocument(
  */
 function PMFGenerateOutputDocument ($outputID, $sApplication = null, $index = null, $sUserLogged = null)
 {
-    if (! $sApplication) {
-        $sApplication = $_SESSION['APPLICATION'];
+    $g = new G();
+
+    $g->sessionVarSave();
+
+    if ($sApplication) {
+        $_SESSION["APPLICATION"] = $sApplication;
+    } else {
+        $sApplication = $_SESSION["APPLICATION"];
     }
-    if (! $index) {
-        $index = $_SESSION['INDEX'];
+
+    if ($index) {
+        $_SESSION["INDEX"] = $index;
+    } else {
+        $index = $_SESSION["INDEX"];
     }
-    if (! $sUserLogged) {
-        $sUserLogged = $_SESSION['USER_LOGGED'];
+
+    if ($sUserLogged) {
+        $_SESSION["USER_LOGGED"] = $sUserLogged;
+    } else {
+        $sUserLogged = $_SESSION["USER_LOGGED"];
     }
 
     G::LoadClass( 'case' );
@@ -1688,6 +1712,8 @@ function PMFGenerateOutputDocument ($outputID, $sApplication = null, $index = nu
                 break;
         }
     }
+
+    $g->sessionVarRestore();
 }
 
 /**
@@ -2157,7 +2183,15 @@ function PMFgetLabelOption ($PROCESS, $DYNAFORM_UID, $FIELD_NAME, $FIELD_SELECTE
  */
 function PMFRedirectToStep ($sApplicationUID, $iDelegation, $sStepType, $sStepUid)
 {
-    $iDelegation = intval( $iDelegation );
+    $g = new G();
+
+    $g->sessionVarSave();
+
+    $iDelegation = intval($iDelegation);
+
+    $_SESSION["APPLICATION"] = $sApplicationUID;
+    $_SESSION["INDEX"] = $iDelegation;
+
     require_once 'classes/model/AppDelegation.php';
     $oCriteria = new Criteria( 'workflow' );
     $oCriteria->addSelectColumn( AppDelegationPeer::TAS_UID );
@@ -2206,10 +2240,15 @@ function PMFRedirectToStep ($sApplicationUID, $iDelegation, $sStepType, $sStepUi
                 $aFields['APP_DATA'] = $oPMScript->aFields;
                 $oCase->updateCase( $sApplicationUID, $aFields );
             }
+
+            $g->sessionVarRestore();
+
             G::header( 'Location: ' . 'cases_Step?TYPE=' . $sStepType . '&UID=' . $sStepUid . '&POSITION=' . $oTheStep->getStepPosition() . '&ACTION=' . $sAction );
             die();
         }
     }
+
+    $g->sessionVarRestore();
 }
 
 /**