add payto URL test, fix payto parser implementation

doc/prebuilt

@@ -1 +1 @@
-Subproject commit ca53235ccfa0458ebf11c204888ca370e20ec3f5
+Subproject commit 934a6a18301e81c4fd1b3a8cda2dc13dca4741cc

src/util/.gitignore

@@ -1 +1,2 @@
 taler-config
+test_payto

src/util/test_payto.c

@@ -21,13 +21,55 @@
 #include "platform.h"
 #include "taler_util.h"
 
+#define CHECK(a,b) do { \
+    if (0 != strcmp (a,b)) {   \
+      GNUNET_break (0); \
+      fprintf (stderr, "Got %s, wanted %s\n", b, a); \
+      GNUNET_free (b); \
+      return 1; \
+    } else { \
+      GNUNET_free (b); \
+    }  \
+} while (0)
+
 
 int
 main (int argc,
       const char *const argv[])
 {
+  char *r;
 
-
+  GNUNET_log_setup ("test-payto",
+                    "WARNING",
+                    NULL);
+  r = TALER_payto_xtalerbank_make ("https://localhost/",
+                                   "account");
+  CHECK ("payto://x-taler-bank/localhost/account",
+         r);
+  r = TALER_payto_xtalerbank_make ("http://localhost:80/",
+                                   "account");
+  CHECK ("payto://x-taler-bank/localhost:80/account",
+         r);
+  r = TALER_payto_xtalerbank_make ("http://localhost/",
+                                   "account");
+  CHECK ("payto://x-taler-bank/localhost:80/account",
+         r);
+  r = TALER_xtalerbank_base_url_from_payto (
+    "payto://x-taler-bank/localhost/bob");
+  CHECK ("https://localhost/",
+         r);
+  r = TALER_xtalerbank_base_url_from_payto (
+    "payto://x-taler-bank/localhost:1080/bob");
+  CHECK ("http://localhost:1080/",
+         r);
+  r = TALER_xtalerbank_account_url_from_payto (
+    "payto://x-taler-bank/localhost/bob");
+  CHECK ("https://localhost/bob",
+         r);
+  r = TALER_xtalerbank_account_url_from_payto (
+    "payto://x-taler-bank/localhost:1080/alice");
+  CHECK ("http://localhost:1080/alice",
+         r);
   return 0;
 }
 

src/util/util.c

@@ -789,16 +789,38 @@ TALER_payto_xtalerbank_make (const char *bank_url,
                              const char *account_name)
 {
   char *payto;
-  int ends_slash;
+  int plaintext;
+  const char *port;
+  size_t slen;
 
-  if (0 < strlen (bank_url))
+  if (0 == strncasecmp ("https://",
-    ends_slash = '/' == bank_url[strlen (bank_url) - 1];
+                        bank_url,
+                        strlen ("https://")))
+  {
+    bank_url += strlen ("https://");
+    plaintext = GNUNET_NO;
+  }
+  else if (0 == strncasecmp ("http://",
+                             bank_url,
+                             strlen ("http://")))
+  {
+    bank_url += strlen ("http://");
+    plaintext = GNUNET_YES;
+  }
   else
-    ends_slash = 0;
+    return NULL;
+  slen = strlen (bank_url);
+  port = memchr (bank_url,
+                 ':',
+                 slen);
+  if ( (0 < slen) &&
+       ('/' == bank_url[slen - 1]) )
+    slen--;
   GNUNET_asprintf (&payto,
-                   (ends_slash)
+                   ( (NULL == port) && (GNUNET_YES == plaintext) )
-                   ? "payto://x-taler-bank/%s%s"
+                   ? "payto://x-taler-bank/%.*s:80/%s"
-                   : "payto://x-taler-bank/%s/%s",
+                   : "payto://x-taler-bank/%.*s/%s",
+                   (int) slen,
                    bank_url,
                    account_name);
   return payto;
@@ -817,20 +839,35 @@ TALER_xtalerbank_base_url_from_payto (const char *payto)
 {
   const char *start;
   const char *end;
+  char *ret;
+  int https;
+  const char *colon;
+  unsigned int port;
 
   if (0 != strncasecmp (payto,
                         "payto://x-taler-bank/",
                         strlen ("payto://x-taler-bank/")))
-  {
     return NULL;
-  }
+  start = &payto[strlen ("payto://x-taler-bank/")];
-  start = &payto [strlen ("payto://x-taler-bank/")];
   end = strchr (start,
-                (unsigned char) '/');
+                '/');
   if (NULL == end)
     end = &start[strlen (start)];
-  return GNUNET_strndup (start,
+  colon = strrchr (start,
-                         end - start);
+                   ':');
+  https = GNUNET_YES;
+  if ( (NULL != colon) &&
+       (1 == sscanf (colon + 1,
+                     "%u",
+                     &port)) &&
+       (443 != port) )
+    https = GNUNET_NO;
+  GNUNET_asprintf (&ret,
+                   "%s://%.*s/",
+                   (https ? "https" : "http"),
+                   (int) (end - start),
+                   start);
+  return ret;
 }
 
 
@@ -846,20 +883,34 @@ TALER_xtalerbank_account_url_from_payto (const char *payto)
 {
   const char *start;
   const char *end;
+  char *ret;
+  int https;
+  const char *colon;
+  unsigned int port;
 
   if (0 != strncasecmp (payto,
                         "payto://x-taler-bank/",
                         strlen ("payto://x-taler-bank/")))
-  {
     return NULL;
-  }
+  start = &payto[strlen ("payto://x-taler-bank/")];
-  start = &payto [strlen ("payto://x-taler-bank/")];
   end = strchr (start,
-                (unsigned char) '?');
+                '/');
   if (NULL == end)
     end = &start[strlen (start)];
-  return GNUNET_strndup (start,
+  colon = strrchr (start,
-                         end - start);
+                   ':');
+  https = GNUNET_YES;
+  if ( (NULL != colon) &&
+       (1 == sscanf (colon + 1,
+                     "%u",
+                     &port)) &&
+       (443 != port) )
+    https = GNUNET_NO;
+  GNUNET_asprintf (&ret,
+                   "%s://%s",
+                   (https ? "https" : "http"),
+                   start);
+  return ret;
 }