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Fix parsing HTTP headers after redirects

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This commit is contained in:
Tamás Bálint Misius
2025-06-04 13:57:30 +02:00
parent 9c35c537e5
commit d14d35982a
1 changed files with 31 additions and 11 deletions
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22
src/client/http/requestmanager/Libcurl.cpp
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@@ -63,6 +63,7 @@ namespace http
char curlErrorBuffer[CURL_ERROR_SIZE]; char curlErrorBuffer[CURL_ERROR_SIZE];
bool curlAddedToMulti = false; bool curlAddedToMulti = false;
bool gotStatusLine = false; bool gotStatusLine = false;
bool gotAllHeaders = false;
RequestHandleHttp() : RequestHandle(CtorTag{}) RequestHandleHttp() : RequestHandle(CtorTag{})
{ {
@@ -74,7 +75,18 @@ namespace http
auto bytes = size * count; auto bytes = size * count;
if (bytes >= 2 && ptr[bytes - 2] == '\r' && ptr[bytes - 1] == '\n') if (bytes >= 2 && ptr[bytes - 2] == '\r' && ptr[bytes - 1] == '\n')
{ {
if (bytes > 2 && handle->gotStatusLine) // Don't include header list terminator or the status line. if (handle->gotAllHeaders)
{
// Reset response headers if we see a new header arrive after seeing a header that we thought was the last.
// This happens when a Request takes multiple HTTP requests to complete; think redirects.
// We are interested only in the response headers of the last response.
handle->responseHeaders.clear();
handle->gotStatusLine = false;
handle->gotAllHeaders = false;
}
if (bytes > 2) // Don't include header list terminator
{
if (handle->gotStatusLine) // ... or the status line.
{ {
auto line = ByteString(ptr, ptr + bytes - 2); auto line = ByteString(ptr, ptr + bytes - 2);
if (auto split = line.SplitBy(':')) if (auto split = line.SplitBy(':'))
@@ -95,7 +107,15 @@ namespace http
std::cerr << "skipping weird header: " << line << std::endl; std::cerr << "skipping weird header: " << line << std::endl;
} }
} }
else
{
handle->gotStatusLine = true; handle->gotStatusLine = true;
}
}
else
{
handle->gotAllHeaders = true;
}
return bytes; return bytes;
} }
return 0; return 0;