modules/Users/authentication/SAMLAuthenticate/SAMLAuthenticateUser.php

   1 <?php
   2 if(!defined('sugarEntry') || !sugarEntry) die('Not A Valid Entry Point');
   3 /*********************************************************************************
   4  * SugarCRM Community Edition is a customer relationship management program developed by
   5  * SugarCRM, Inc. Copyright (C) 2004-2012 SugarCRM Inc.
   6  *
   7  * This program is free software; you can redistribute it and/or modify it under
   8  * the terms of the GNU Affero General Public License version 3 as published by the
   9  * Free Software Foundation with the addition of the following permission added
  10  * to Section 15 as permitted in Section 7(a): FOR ANY PART OF THE COVERED WORK
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  15  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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  28  * of this program must display Appropriate Legal Notices, as required under
  29  * Section 5 of the GNU Affero General Public License version 3.
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  31  * In accordance with Section 7(b) of the GNU Affero General Public License version 3,
  32  * these Appropriate Legal Notices must retain the display of the "Powered by
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  34  * technical reasons, the Appropriate Legal Notices must display the words
  35  * "Powered by SugarCRM".
  36  ********************************************************************************/
  37
  38
  39
  40
  41
  42 /**
  43  * This file is where the user authentication occurs. No redirection should happen in this file.
  44  *
  45  */
  46 require_once('modules/Users/authentication/SugarAuthenticate/SugarAuthenticateUser.php');
  47
  48
  49 class SAMLAuthenticateUser extends SugarAuthenticateUser{
  50         /**
  51          * Does the actual authentication of the user and returns an id that will be used
  52          * to load the current user (loadUserOnSession)
  53          *
  54          * @param STRING $name
  55          * @param STRING $password
  56          * @return STRING id - used for loading the user
  57          *
  58          * Contributions by Erik Mitchell erikm@logicpd.com
  59          */
  60         function authenticateUser($name, $password) {
  61                 $GLOBALS['log']->debug('authenticating user.'); // JMH
  62 //        uncomment the line below to test on the server. this is a temporary solution - John H. (task 9069)
  63 //              $_POST['SAMLResponse'] = "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  64
  65
  66
  67                 if(empty($_POST['SAMLResponse']))return parent::authenticateUser($name, $password);
  68
  69                 $GLOBALS['log']->debug('have saml data.'); // JMH
  70                 // Look for custom versions of settings.php if it exists
  71         require(get_custom_file_if_exists('modules/Users/authentication/SAMLAuthenticate/settings.php'));
  72
  73                 require('modules/Users/authentication/SAMLAuthenticate/lib/onelogin/saml.php');
  74
  75                 $samlresponse = new SamlResponse(get_saml_settings(), $_POST['SAMLResponse']);
  76
  77                 if ($samlresponse->is_valid()){
  78                         $GLOBALS['log']->debug('response is valid');
  79                         $settings = get_saml_settings();
  80                         $customFields = $this->getAdditionalFieldsToSelect($samlresponse, $settings);
  81                         $GLOBALS['log']->debug('got this many custom fields:' . count($customFields));
  82                         $xmlDoc = new DOMDocument();
  83                         $xmlDoc->loadXML(base64_decode($_POST['SAMLResponse']));
  84                         $xpath = new DOMXpath($xmlDoc);
  85                         $query = $settings->saml_settings['check']['user_name'];
  86                         $entries = $xpath->query($query);
  87                         $nameId = $entries->item(0)->nodeValue;
  88
  89                         $sql = "SELECT id, status $customFields FROM users WHERE " . $settings->id . "='" . $nameId . "' AND deleted = 0";
  90                         $dbresult = $GLOBALS['db']->query("SELECT id, status $customFields FROM users WHERE " . $settings->id . "='" . $nameId . "' AND deleted = 0");
  91
  92                         $GLOBALS['log']->debug("sql: {$sql}"); // JMH
  93
  94                         $GLOBALS['log']->debug('queried the db'); // JMH
  95                         //user already exists use this one
  96                         if($row = $GLOBALS['db']->fetchByAssoc($dbresult)){
  97                                 $GLOBALS['log']->debug('have db results'); // JMH
  98                                 if($row['status'] != 'Inactive')
  99                                 {
 100                                         $GLOBALS['log']->debug('have current user'); // JMH
 101                                         $this->updateCustomFields($row, $_POST['SAMLResponse'], $settings);
 102                                         return $row['id'];
 103                                 }
 104                                 else
 105                                 {
 106                                         $GLOBALS['log']->debug('have inactive user'); // JMH
 107                                         return '';
 108                                 }
 109                         }
 110                         else
 111                         {
 112                 if (isset($settings->customCreateFunction))
 113                 {
 114                     call_user_func($settings->customCreateFunction, $this, $samlresponse->get_nameid(), $xpath, $settings);
 115                 } else {
 116                     return $this->createUser($samlresponse->get_nameid(), $xpath, $settings);
 117                 }
 118                         }
 119 //      comment out the following two lines for testing - John H. (task 9069)
 120                 }
 121                 return '';
 122         }
 123
 124
 125         /**
 126         * Updates the custom fields listed in settings->saml_settings['update'] in our
 127         * db records with the data from the xml in the saml assertion. Every field
 128         * listed in the ['update'] array is a key whose value is a (hopefully) valid
 129         * xpath, which in turn can be used to retrive the value of the node specified
 130         * by that xpath. If the value of the node does not equal the value in our
 131         * records, update our records to match the value from the xml.
 132         *
 133         * @param hash $dbData - data for this user from our db.
 134         * @param string $xmlSAMLAssertion - xml text, a valid saml assertion.
 135         * @param SamlSettings $settings - our settings object.
 136         * @return int - 0 = no action taken, 1 = user record saved, -1 = no update.
 137         *
 138         * Contributed by Mike Andersen, SugarCRM.
 139         **/
 140         function updateCustomFields($dbData, $xmlSAMLAssertion, $settings)
 141         {
 142                 $customFields = $this->getCustomFields($settings, 'update');
 143
 144                 if (count($customFields) == 0)
 145                 {
 146                         $GLOBALS['log']->debug("No custom fields! So returning 0."); // JMH
 147                         return 0;
 148                 }
 149
 150                 $user = new User();
 151                 $user->retrieve($dbData['id']);
 152                 $GLOBALS['log']->debug("updateCF()... userid={$user->id}"); // JMH
 153
 154                 $xmlDoc = new DOMDocument();
 155                 $xmlDoc->loadXML(base64_decode($xmlSAMLAssertion));
 156                 $xpath = new DOMXpath($xmlDoc);
 157                 $GLOBALS['log']->debug("Created xpath object."); // JMH
 158
 159                 $customFieldUpdated = false;
 160
 161                 foreach ($customFields as $field)
 162                 {
 163                         $GLOBALS['log']->debug("Top of fields loop with $field."); // JMH
 164                         if (!array_key_exists($field, $dbData))
 165                         {
 166                                 $GLOBALS['log']->debug("$field is not in \$dbData. \n\$dbData=" . var_export($dbData, TRUE)); // JMH
 167                                 // custom field not listed in db query results!
 168                                 continue;
 169                         }
 170                         $customFieldValue = $dbData[$field];
 171
 172                         $xmlNodes = $xpath->query($settings->saml_settings['update'][$field]);
 173                         if ($xmlNodes === false)
 174                         {
 175                                 // malformed xpath!
 176                                 $GLOBALS['log']->debug("$field contains bad xpath: " . $settings->saml_settings['update'][$field]); // JMH
 177                                 continue;
 178                         }
 179                         $GLOBALS['log']->debug("updateCF(): 3"); // JMH
 180                         if ($xmlNodes->length == 0)
 181                         {
 182                                 // no nodes match xpath!
 183                                 $GLOBALS['log']->debug("$field no nodes match this xpath: " . $settings->saml_settings['update'][$field]); // JMH
 184                                 continue;
 185                         }
 186
 187                         $xmlValue = $xmlNodes->item(0)->nodeValue;
 188                         $GLOBALS['log']->debug("$field xpath returned $xmlValue"); // JMH
 189
 190                         if ($customFieldValue != $xmlValue)
 191                         {
 192                                 // need to update our user record.
 193                                 $customFieldUpdated = true;
 194                                 $user->$field = $xmlValue;
 195                                 $GLOBALS['log']->debug("db is out of date. setting {$field} to {$xmlValue}"); // JMH
 196                         }
 197                 }
 198
 199                 if ($customFieldUpdated)
 200                 {
 201                         $GLOBALS['log']->debug("updateCustomFields calling user->save() and returning 0"); // JMH
 202                         $user->save();
 203                         return 1;
 204                 }
 205
 206                 $GLOBALS['log']->debug("updateCustomFields found no fields to update. Returning -1"); // JMH
 207                 return -1;
 208         }
 209
 210
 211         /**
 212         * Determines if there are custom fields to add to our select statement, and
 213         * returns a comma prepended, comma-delimited list of those custom fields.
 214         *
 215         * @param SamlResponse $samlresponse
 216         * @param SamlSettings $settings
 217         * @return String $additionalFields = either empty, or ", field1[, field2, fieldn]"
 218         *
 219         * Contributed by Mike Andersen, SugarCRM.
 220         **/
 221         function getAdditionalFieldsToSelect($samlresponse, $settings)
 222         {
 223                 if (isset($settings->saml_settings) && isset($settings->saml_settings['update']) && count($settings->saml_settings['update']) > 0)
 224         {
 225                         return ',' . implode(',', $this->getCustomFields($settings, 'update'));
 226                 }
 227                 return '';
 228         }
 229
 230
 231         /**
 232         * Returns an array of custom field names. These names are the keys in the
 233         * 'update' hash in $settings->saml_settings hash.
 234         * See modules/Users/authentication/SAMLAuthenticate/settings.php for details.
 235         *
 236         * @param SamlSettings $settings
 237         * @param String $which - which custom fields: 'check', 'create' or 'update'
 238         * @return Array - list of custom field names.
 239         *
 240         * Contributed by Mike Andersen, SugarCRM.
 241         **/
 242         function getCustomFields($settings, $which)
 243         {
 244                 if (IsSet($settings->saml_settings[$which]))
 245                 {
 246                         return array_keys($settings->saml_settings[$which]);
 247                 }
 248                 else
 249                 {
 250                         $empty = array();
 251                         return $empty;
 252                 }
 253         }
 254
 255
 256
 257         /**
 258          * Creates a user with the given User Name and returns the id of that new user
 259          * populates the user with what was set in the SAML Response
 260          *
 261          * @param STRING $name
 262          * @param DOMXpath $xpath
 263          * @param SamlSettings $settings - our settings object.
 264          * @return STRING $id
 265          */
 266         function createUser($name, $xpath, $settings)
 267   {
 268         $GLOBALS['log']->debug("Called createUser");
 269           $user = new User();
 270                 $user->user_name = $name;
 271                 $user->email1 = $name;
 272                 $user->last_name = $name;
 273                 $user->employee_status = 'Active';
 274                 $user->status = 'Active';
 275                 $user->is_admin = 0;
 276                 $user->external_auth_only = 1;
 277                 $user->system_generated_password = 0;
 278
 279                 // Loop through the create custom fields and update their values in the
 280                 // user object from the xml SAML response.
 281                 $customFields = $this->getCustomFields($settings, 'create');
 282         $GLOBALS['log']->debug("number of custom fields: " . count($customFields));
 283                 foreach ($customFields as $field)
 284                 {
 285                         $GLOBALS['log']->debug("xpath for $field is " . $settings->saml_settings['create'][$field]);
 286                         $xmlNodes = $xpath->query($settings->saml_settings['create'][$field]);
 287                         if ($xmlNodes === false)
 288                         {
 289                                 // malformed xpath!
 290                                 $GLOBALS['log']->debug("Bad xpath: " . $settings->saml_settings['create'][$field]);
 291                                 continue;
 292                         }
 293                         if ($xmlNodes->length == 0)
 294                         {
 295                                 // no nodes match xpath!
 296                                 $GLOBALS['log']->debug("No nodes match this xpath: " . $settings->saml_settings['create'][$field]);
 297                                 continue;
 298                         }
 299
 300                         if ($field == 'id')
 301                         {
 302                                 $user->new_with_id = true;
 303                         }
 304
 305                         $xmlValue = $xmlNodes->item(0)->nodeValue;
 306                         $GLOBALS['log']->debug("Setting $field to $xmlValue");
 307                         $user->$field = $xmlValue;
 308                 }
 309
 310         $GLOBALS['log']->debug("finished loop - saving.");
 311                 $user->save();
 312         $GLOBALS['log']->debug("New user id is " . $user->id);
 313                 return $user->id;
 314         }
 315 }
 316 ?>