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Add curl trace support

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Robin Gareus 2025-12-09 23:14:42 +01:00
parent b11ef7fee4
commit ca04a320c4
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1 changed files with 77 additions and 0 deletions
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77
libs/pbd/ccurl.cc
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@ -43,6 +43,76 @@ const char* PBD::CCurl::ca_info = NULL;
#define CCERR(msg) (void)cc;
#endif
#ifdef ARDOURCURLTRACE
// inspired by https://curl.se/libcurl/c/debug.html
// Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
// SPDX-License-Identifier: curl
static void
dump (const char* text, FILE* stream, unsigned char* ptr, size_t size)
{
unsigned int width = 0x40;
fprintf (stream, "%s, %10.10lu bytes (0x%8.8lx)\n", text, (unsigned long)size, (unsigned long)size);
for (size_t i = 0; i < size; i += width) {
fprintf (stream, "%4.4lx: ", (unsigned long)i);
for (size_t c = 0; (c < width) && (i + c < size); c++) {
/* check for 0D0A; if found, skip past and start a new line of output */
if ((i + c + 1 < size) && ptr[i + c] == 0x0D && ptr[i + c + 1] == 0x0A) {
i += (c + 2 - width);
break;
}
fprintf (stream, "%c", (ptr[i + c] >= 0x20) && (ptr[i + c] < 0x80) ? ptr[i + c] : '.');
/* check again for 0D0A, to avoid an extra \n if it is at width */
if ((i + c + 2 < size) && ptr[i + c + 1] == 0x0D && ptr[i + c + 2] == 0x0A) {
i += (c + 3 - width);
break;
}
}
fputc ('\n', stream); /* newline */
}
fflush (stream);
}
static int
curl_trace (CURL* curl, curl_infotype type, char* data, size_t size, void*)
{
const char* text;
(void)curl;
switch (type) {
case CURLINFO_TEXT:
fprintf (stderr, "== Info: %s", data);
return 0;
case CURLINFO_HEADER_OUT:
text = "=> Send header";
break;
case CURLINFO_DATA_OUT:
text = "=> Send data";
break;
case CURLINFO_SSL_DATA_OUT:
text = "=> Send SSL data";
break;
case CURLINFO_HEADER_IN:
text = "<= Recv header";
break;
case CURLINFO_DATA_IN:
text = "<= Recv data";
break;
case CURLINFO_SSL_DATA_IN:
text = "<= Recv SSL data";
break;
default: /* in case a new one is introduced to shock us */
return 0;
}
dump (text, stderr, (unsigned char*)data, size);
return 0;
}
#endif
using namespace PBD;
CCurl::CCurl ()
@ -88,6 +158,13 @@ CCurl::curl () const
cc = curl_easy_setopt (_curl, CURLOPT_NOSIGNAL, 1);
CCERR ("CURLOPT_NOSIGNAL");
#ifdef ARDOURCURLTRACE
cc = curl_easy_setopt (_curl, CURLOPT_DEBUGFUNCTION, curl_trace);
CCERR ("CURLOPT_TRACE");
cc = curl_easy_setopt (_curl, CURLOPT_VERBOSE, 1L);
CCERR ("CURLOPT_VERBOSE");
#endif
ca_setopt (_curl);
return _curl;