Update networking layer w/ CURL and emscripten impl

2025-11-08 01:50:36 +11:00
parent a17925904d
commit f6874dc55a
4105 changed files with 694617 additions and 179 deletions
@@ -0,0 +1,99 @@
+---
+c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
+SPDX-License-Identifier: curl
+Title: CURLOPT_REDIR_PROTOCOLS_STR
+Section: 3
+Source: libcurl
+See-also:
+  - CURLINFO_SCHEME (3)
+  - CURLOPT_DEFAULT_PROTOCOL (3)
+  - CURLOPT_PROTOCOLS (3)
+  - CURLOPT_PROTOCOLS_STR (3)
+  - CURLOPT_REDIR_PROTOCOLS (3)
+Protocol:
+  - HTTP
+Added-in: 7.85.0
+---
+
+# NAME
+
+CURLOPT_REDIR_PROTOCOLS_STR - protocols allowed to redirect to
+
+# SYNOPSIS
+
+~~~c
+#include <curl/curl.h>
+
+CURLcode curl_easy_setopt(CURL *handle, CURLOPT_REDIR_PROTOCOLS_STR,
+                          char *spec);
+~~~
+
+# DESCRIPTION
+
+Pass a pointer to a string that holds a comma-separated list of case
+insensitive protocol names (URL schemes). That list limits what protocols
+libcurl may use in a transfer that it follows to in a redirect when
+CURLOPT_FOLLOWLOCATION(3) is enabled. This option allows applications to limit
+specific transfers to only be allowed to use a subset of protocols in
+redirections.
+
+Protocols denied by CURLOPT_PROTOCOLS_STR(3) are not overridden by this
+option.
+
+By default libcurl allows HTTP, HTTPS, FTP and FTPS on redirects (since
+7.65.2).
+
+These are the available protocols:
+
+DICT, FILE, FTP, FTPS, GOPHER, GOPHERS, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS,
+MQTT, POP3, POP3S, RTMP, RTMPE, RTMPS, RTMPT, RTMPTE, RTMPTS, RTSP, SCP, SFTP,
+SMB, SMBS, SMTP, SMTPS, TELNET, TFTP, WS, WSS
+
+You can set "ALL" as a short-cut to enable all protocols. Note that by setting
+all, you may enable protocols that were not supported the day you write this
+but are introduced in a future libcurl version.
+
+If trying to set a non-existing protocol or if no matching protocol at all is
+set, it returns error.
+
+Using this option multiple times makes the last set string override the
+previous ones. Set it to NULL to restore to internal default.
+
+The application does not have to keep the string around after setting this
+option.
+
+# DEFAULT
+
+HTTP, HTTPS, FTP and FTPS (Added in 7.65.2).
+
+Older versions defaulted to all protocols except FILE, SCP and since 7.40.0
+SMB and SMBS.
+
+# %PROTOCOLS%
+
+# EXAMPLE
+
+~~~c
+int main(int argc, char **argv)
+{
+  CURL *curl = curl_easy_init();
+  if(curl) {
+    /* pass in the URL from an external source */
+    curl_easy_setopt(curl, CURLOPT_URL, argv[1]);
+
+    /* only allow redirects to HTTP and HTTPS URLs */
+    curl_easy_setopt(curl, CURLOPT_REDIR_PROTOCOLS_STR, "http,https");
+
+    /* Perform the request */
+    curl_easy_perform(curl);
+  }
+}
+~~~
+
+# %AVAILABILITY%
+
+# RETURN VALUE
+
+Returns CURLE_UNKNOWN_OPTION if the option is not implemented,
+CURLE_UNSUPPORTED_PROTOCOL if a listed protocol is not supported or disabled,
+CURLE_BAD_FUNCTION_ARGUMENT if no protocol is listed else CURLE_OK.