tests for unescaping decimal HTML escapes and '+' in URLs

tests/Makefile.am

@@ -87,6 +87,9 @@ json_escape_LDADD = $(LDADD)
 url_escape_SOURCES = url-escape.c
 url_escape_LDADD = $(LDADD)
 
+url_unescape_SOURCES = url-escape.c
+url_unescape_LDADD = $(LDADD)
+
 html_escape_SOURCES = html-escape.c
 html_escape_LDADD = $(LDADD)
 
@@ -115,7 +118,7 @@ valid_hostname_LDADD = $(LDADD)
 port_parsing_LDADD = $(LDADD)
 
 check_PROGRAMS = str-test str-test2 ipv4-prefix ipv6-prefix kkdcp-parsing json-escape ban-ips \
-	port-parsing human_addr valid-hostname url-escape html-escape cstp-recv \
+	port-parsing human_addr valid-hostname url-escape url-unescape html-escape cstp-recv \
 	proxyproto-v1
 
 

tests/html-escape.c

@@ -35,7 +35,9 @@ static char *strings[] =
 	"try to escape \\escapes",
 	"\tbig pile  \b\b of stuff\r\n",
 	"<hi there>",
-	"\"hi there\""
+	"\"hi there\"",
+	"Ahoy matey!",
+	"Ahoy matey&#33"
 };
 
 static char *encoded_strings[] = 
@@ -47,7 +49,9 @@ static char *encoded_strings[] =
 	"try to escape \\escapes",
 	"&#x0009;big pile  &#x0008;&#x0008; of stuff&#x000d;&#x000a;",
 	"&lt;hi&nbsp;there&gt;",
-	"&quot;hi there&quot;"
+	"&quot;hi there&quot;",
+	"&#65;hoy&#000032;matey!",
+	"Ahoy matey&#33"
 };
 
 int main()

tests/url-unescape.c

@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2016 Nikos Mavrogiannopoulos
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <config.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <netdb.h>
+#include "../src/html.h"
+#include "../src/html.c"
+
+static char *strings[] =
+{
+    "Laguna+Beach",
+};
+
+static char *decoded_strings[] =
+{
+    "Laguna Beach",
+};
+
+int main()
+{
+    char *dec;
+    unsigned i;
+    unsigned len;
+
+    for (i=0;i<sizeof(strings)/sizeof(strings[0]);i++) {
+        dec = unescape_url(NULL, strings[i], strlen(strings[i]), &len);
+        if (strcmp(dec, decoded_strings[i]) != 0) {
+            fprintf(stderr, "string %d, fails decoding:\n\tinput: '%s'\n\toutput: '%s'\n", i, decoded_strings[i], dec);
+            exit(1);
+        }
+        talloc_free(dec);
+    }
+    return 0;
+}