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authorChristian Grothoff <christian@grothoff.org>2024-01-08 19:18:24 +0100
committerChristian Grothoff <christian@grothoff.org>2024-01-08 19:18:24 +0100
commitef193efa2f1d6d3d111a082810b5ecc28947d16c (patch)
treec9bc50eac85736b258c9f8cad8f889a70bcffc9f /src/curl
parent44b327f2d3f88b949651a8cb02c568f1ff3012d0 (diff)
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improve curl backwards compatibility, de-duplicate code
Diffstat (limited to 'src/curl')
-rw-r--r--src/curl/curl.c52
1 files changed, 52 insertions, 0 deletions
diff --git a/src/curl/curl.c b/src/curl/curl.c
index caa0052f7..61a1ca954 100644
--- a/src/curl/curl.c
+++ b/src/curl/curl.c
@@ -30,6 +30,58 @@
#endif
+void
+TALER_curl_set_secure_redirect_policy (CURL *eh,
+ const char *url)
+{
+ GNUNET_assert (CURLE_OK ==
+ curl_easy_setopt (eh,
+ CURLOPT_FOLLOWLOCATION,
+ 1L));
+ GNUNET_assert ( (0 == strncasecmp (url, ||
+ "https://",
+ strlen ("https://"))) ||
+ (0 == strncasecmp (url,
+ "https://",
+ strlen ("http://"))) );
+#ifdef CURLOPT_REDIR_PROTOCOLS_STR
+ if (0 == strncasecmp (url,
+ "https://",
+ strlen ("https://")))
+ GNUNET_assert (CURLE_OK ==
+ curl_easy_setopt (eh,
+ CURLOPT_REDIR_PROTOCOLS_STR,
+ "https"));
+ else
+ GNUNET_assert (CURLE_OK ==
+ curl_easy_setopt (eh,
+ CURLOPT_REDIR_PROTOCOLS_STR,
+ "http,https"));
+#else
+#ifdef CURLOPT_REDIR_PROTOCOLS
+ if (0 == strncasecmp (url,
+ "https://",
+ strlen ("https://")))
+ GNUNET_assert (CURLE_OK ==
+ curl_easy_setopt (eh,
+ CURLOPT_REDIR_PROTOCOLS,
+ CURLPROTO_HTTPS));
+ else
+ GNUNET_assert (CURLE_OK ==
+ curl_easy_setopt (eh,
+ CURLOPT_REDIR_PROTOCOLS,
+ CURLPROTO_HTTP | CURLPROTO_HTTPS));
+#endif
+#endif
+ /* limit MAXREDIRS to 5 as a simple security measure against
+ a potential infinite loop caused by a malicious target */
+ GNUNET_assert (CURLE_OK ==
+ curl_easy_setopt (eh,
+ CURLOPT_MAXREDIRS,
+ 5L));
+}
+
+
enum GNUNET_GenericReturnValue
TALER_curl_easy_post (struct TALER_CURL_PostContext *ctx,
CURL *eh,