Allow url parser seting the end of url.

src/libserver/url.c

 }
 
 static gint
-rspamd_mailto_parse (struct http_parser_url *u, const gchar *str)
+rspamd_mailto_parse (struct http_parser_url *u, const gchar *str,
+		gchar const **end)
 {
 	const gchar *p = str, *c = str;
 	gchar t;
+	gint ret = 1;
 	enum {
 		parse_mailto,
 		parse_slash,
 				st = parse_slash_slash;
 			}
 			else {
-				return 1;
+				goto out;
 			}
 			p ++;
 			break;
 				st = parse_destination;
 			}
 			else {
-				return 1;
+				goto out;
 			}
 			break;
 		case parse_destination:
 		case parse_user:
 			if (t == '@') {
 				if (p - c == 0) {
-					return 1;
+					goto out;
 				}
 				u->field_set |= 1 << UF_USERINFO;
 				u->field_data[UF_USERINFO].len = p - c;
 				st = parse_at;
 			}
 			else if (!is_atom (t)) {
-				return 1;
+				goto out;
 			}
 			p ++;
 			break;
 				st = parse_suffix_question;
 			}
 			else if (!is_domain (t) && t != '.' && t != '_') {
-				return 1;
+				goto out;
 			}
 			p ++;
 			break;
 			break;
 		case parse_query:
 			if (!is_atom (t)) {
-				return 1;
+				goto out;
 			}
 			p ++;
 			break;
 	}
 
 	if (st == parse_domain) {
-		if (p - c == 0) {
-			return 1;
-		}
-
-		u->field_set |= 1 << UF_HOST;
-		u->field_data[UF_HOST].len = p - c;
-		u->field_data[UF_HOST].off = c - str;
+		if (p - c != 0) {
+			u->field_set |= 1 << UF_HOST;
+			u->field_data[UF_HOST].len = p - c;
+			u->field_data[UF_HOST].off = c - str;
 
-		return 0;
+			ret = 0;
+		}
 	}
 	else if (st == parse_query) {
 		if (p - c > 0) {
 			u->field_data[UF_QUERY].off = c - str;
 		}
 
-		return 0;
+		ret = 0;
+	}
+
+out:
+	if (end != NULL) {
+		*end = p;
 	}
 
-	return 1;
+	return ret;
 }
 
 static gint
-rspamd_web_parse (struct http_parser_url *u, const gchar *str)
+rspamd_web_parse (struct http_parser_url *u, const gchar *str, gchar const **end)
 {
 	const gchar *p = str, *c = str;
 	gchar t;
 				st = parse_slash_slash;
 			}
 			else {
-				return 1;
+				goto out;
 			}
 			p ++;
 			break;
 		case parse_user:
 			if (t == ':') {
 				if (p - c == 0) {
-					return 1;
+					goto out;
 				}
 				u->field_set |= 1 << UF_USERINFO;
 				u->field_data[UF_USERINFO].len = p - c;
 			else if (t == '@') {
 				/* No password */
 				if (p - c == 0) {
-					return 1;
+					goto out;
 				}
 				u->field_set |= 1 << UF_USERINFO;
 				u->field_data[UF_USERINFO].len = p - c;
 				st = parse_at;
 			}
 			else if (!is_atom (t)) {
-				return 1;
+				goto out;
 			}
 			p ++;
 			break;
 				st = parse_at;
 			}
 			else if (!is_atom (t)) {
-				return 1;
+				goto out;
 			}
 			p ++;
 			break;
 		case parse_domain:
 			if (t == '/' || t == ':') {
 				if (p - c == 0) {
-					return 1;
+					goto out;
 				}
 				u->field_set |= 1 << UF_HOST;
 				u->field_data[UF_HOST].len = p - c;
 
 					if (uc == (gunichar)-1) {
 						/* Bad utf8 */
-						return 1;
+						goto out;
 					}
 
 					if (!g_unichar_isalnum (uc)) {
 						/* Bad symbol */
-						return 1;
+						goto out;
 					}
 
 					p = g_utf8_next_char (p);
 			if (t == '/') {
 				pt = strtoul (c, NULL, 10);
 				if (pt == 0 || pt > 65535) {
-					return 1;
+					goto out;
 				}
 				u->port = pt;
 				st = parse_suffix_slash;
 			}
 			else if (!g_ascii_isdigit (t)) {
-				return 1;
+				goto out;
 			}
 			p ++;
 			break;
 	switch (st) {
 	case parse_domain:
 		if (p - c == 0) {
-			return 1;
+			goto out;
 		}
 		u->field_set |= 1 << UF_HOST;
 		u->field_data[UF_HOST].len = p - c;
 	case parse_port:
 		pt = strtoul (c, NULL, 10);
 		if (pt == 0 || pt > 65535) {
-			return 1;
+			goto out;
 		}
 		u->port = pt;
 		ret = 0;
 		ret = 1;
 		break;
 	}
+out:
+	if (end != NULL) {
+		*end = p;
+	}
 
 	return ret;
 }
 	if (len > sizeof ("mailto:") - 1) {
 		/* For mailto: urls we also need to add slashes to make it a valid URL */
 		if (g_ascii_strncasecmp (p, "mailto:", sizeof ("mailto:") - 1) == 0) {
-			ret = rspamd_mailto_parse (&u, p);
+			ret = rspamd_mailto_parse (&u, p, NULL);
 		}
 		else {
-			ret = rspamd_web_parse (&u, p);
+			ret = rspamd_web_parse (&u, p, NULL);
 		}
 	}
 	else {
-		ret = rspamd_web_parse (&u, p);
+		ret = rspamd_web_parse (&u, p, NULL);
 	}
 
 	if (ret != 0) {