[libsoup] SoupAuthBasic: allow (some) non-ASCII usernames/passwords

[Dan Winship <danw src gnome org>]

commit d350aedcf06ae86de7b615e963d39cb699723230
Author: Dan Winship <danw gnome org>
Date:   Thu Oct 20 17:27:34 2011 -0400

    SoupAuthBasic: allow (some) non-ASCII usernames/passwords
    
    Convert the (assumed-UTF-8) username and password into ISO-8859-1
    before encoding. This is what a few other browsers do.
    
    Based on a patch from Joachim Breitner, sponsored by ITOMIG GmbH and
    the City of BÃblingen.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=576838

 libsoup/soup-auth-basic.c |    9 ++++++++-
 libsoup/soup-logger.c     |   13 ++++++++++++-
 2 files changed, 20 insertions(+), 2 deletions(-)
---
diff --git a/libsoup/soup-auth-basic.c b/libsoup/soup-auth-basic.c
index 4218f7e..3705e6e 100644
--- a/libsoup/soup-auth-basic.c
+++ b/libsoup/soup-auth-basic.c
@@ -103,10 +103,17 @@ static void
 authenticate (SoupAuth *auth, const char *username, const char *password)
 {
 	SoupAuthBasicPrivate *priv = SOUP_AUTH_BASIC_GET_PRIVATE (auth);
-	char *user_pass;
+	char *user_pass, *user_pass_latin1;
 	int len;
 
 	user_pass = g_strdup_printf ("%s:%s", username, password);
+	user_pass_latin1 = g_convert (user_pass, -1, "ISO-8859-1", "UTF-8",
+				      NULL, NULL, NULL);
+	if (user_pass_latin1) {
+		memset (user_pass, 0, strlen (user_pass));
+		g_free (user_pass);
+		user_pass = user_pass_latin1;
+	}
 	len = strlen (user_pass);
 
 	if (priv->token) {
diff --git a/libsoup/soup-logger.c b/libsoup/soup-logger.c
index ac901fc..b159e67 100644
--- a/libsoup/soup-logger.c
+++ b/libsoup/soup-logger.c
@@ -422,10 +422,21 @@ soup_logger_print (SoupLogger *logger, SoupLoggerLogLevel level,
 static void
 soup_logger_print_basic_auth (SoupLogger *logger, const char *value)
 {
-	char *decoded, *p;
+	char *decoded, *decoded_utf8, *p;
 	gsize len;
 
 	decoded = (char *)g_base64_decode (value + 6, &len);
+	if (decoded && !g_utf8_validate (decoded, -1, NULL)) {
+		decoded_utf8 = g_convert_with_fallback (decoded, -1,
+							"UTF-8", "ISO-8859-1",
+							NULL, NULL, &len,
+							NULL);
+		if (decoded_utf8) {
+			g_free (decoded);
+			decoded = decoded_utf8;
+		}
+	}
+
 	if (!decoded)
 		decoded = g_strdup (value);
 	p = strchr (decoded, ':');