Revert merge from inverse

https://github.com/Zentyal/sogo/pull/150

Because the login on web with the use of outlook is broken after
including the DomainLessLogin feature

ActiveSync/NSString+ActiveSync.m

@@ -46,99 +46,6 @@ static NSArray *easCommandParameters = nil;
 
 @implementation NSString (ActiveSync)
 
-//
-// This is a copy from NSString+XMLEscaping.m from SOPE.
-// The difference here is that we use wchar_t instead of unichar.
-// This is needed to get the rigth numeric character reference.
-// e.g. SMILING FACE WITH OPEN MOUTH
-//      ok: wchar_t -> 😃   wrong:  unichar -> � �
-//
-// We avoir naming it like the one in SOPE since if the ActiveSync
-// bundle is loaded, it'll overwrite the one provided by SOPE.
-//
-- (NSString *) _stringByEscapingXMLStringUsingCharacters {
-  register unsigned i, len, j;
-  register wchar_t *buf;
-  const wchar_t *chars;
-  unsigned escapeCount;
-
-  if ([self length] == 0) return @"";
-
-  NSData *data = [self dataUsingEncoding:NSUTF32StringEncoding];
-  chars = [data bytes];
-  len = [data length]/4;
-
-  /* check for characters to escape ... */
-  for (i = 0, escapeCount = 0; i < len; i++) {
-    switch (chars[i]) {
-      case '&': case '"': case '<': case '>': case '\r':
-        escapeCount++;
-        break;
-      default:
-        if (chars[i] > 127)
-          escapeCount++;
-        break;
-    }
-  }
-  if (escapeCount == 0 ) {
-    /* nothing to escape ... */
-    return [[self copy] autorelease];
-  }
-
-  buf = calloc((len + 5) + (escapeCount * 16), sizeof(wchar_t));
-  for (i = 0, j = 0; i < len; i++) {
-    switch (chars[i]) {
-      /* escape special chars */
-      case '\r':
-        buf[j] = '&'; j++; buf[j] = '#'; j++; buf[j] = '1'; j++;
-        buf[j] = '3'; j++; buf[j] = ';'; j++;
-        break;
-      case '&':
-        buf[j] = '&'; j++; buf[j] = 'a'; j++; buf[j] = 'm'; j++;
-        buf[j] = 'p'; j++; buf[j] = ';'; j++;
-        break;
-      case '"':
-        buf[j] = '&'; j++; buf[j] = 'q'; j++; buf[j] = 'u'; j++;
-        buf[j] = 'o'; j++; buf[j] = 't'; j++; buf[j] = ';'; j++;
-        break;
-      case '<':
-        buf[j] = '&'; j++; buf[j] = 'l'; j++; buf[j] = 't'; j++;
-        buf[j] = ';'; j++;
-        break;
-      case '>':
-        buf[j] = '&'; j++; buf[j] = 'g'; j++; buf[j] = 't'; j++;
-        buf[j] = ';'; j++;
-        break;
-
-      default:
-        /* escape big chars */
-        if (chars[i] > 127) {
-          unsigned char nbuf[32];
-          unsigned int k;
-
-          sprintf((char *)nbuf, "&#%i;", (int)chars[i]);
-          for (k = 0; nbuf[k] != '\0'; k++) {
-            buf[j] = nbuf[k];
-            j++;
-          }
-        }
-        else if (chars[i] == 0x9 || chars[i] == 0xA || chars[i] == 0xD || chars[i] >= 0x20) { // ignore any unsupported control character
-          /* nothing to escape */
-          buf[j] = chars[i];
-          j++;
-        }
-        break;
-    }
-  }
-  
-  self = [[NSString alloc] initWithBytesNoCopy: buf
-                                        length: (j*sizeof(wchar_t))
-                                      encoding: NSUTF32StringEncoding
-                                  freeWhenDone: YES];
-
-  return [self autorelease];
-}
-
 - (NSString *) sanitizedServerIdWithType: (SOGoMicrosoftActiveSyncFolderType) folderType
 {
   if (folderType == ActiveSyncEventFolder)
@@ -158,7 +65,11 @@ static NSArray *easCommandParameters = nil;
 
 - (NSString *) activeSyncRepresentationInContext: (WOContext *) context
 {
-  return [self _stringByEscapingXMLStringUsingCharacters];
+  NSString *s;
+
+  s = [self safeString];
+
+  return [s stringByEscapingHTMLString];
 }
 
 - (int) activeSyncFolderType