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Auto-add a content-length header.

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git-svn-id: https://www.unprompted.com/svn/projects/tildefriends/trunk@4681 ed5197a5-7fde-0310-b194-c3ffbd925b24
This commit is contained in:
Cory McWilliams 2023-12-20 23:13:03 +00:00
parent 03e4b37c04
commit f4b6812675
1 changed files with 18 additions and 0 deletions
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18
src/http.c
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@ -296,15 +296,28 @@ void tf_http_respond(tf_http_request_t* request, int status, const char** header
{ {
const char* status_text = _http_status_text(status); const char* status_text = _http_status_text(status);
/* HTTP/1.x 200 OK\r\n */ /* HTTP/1.x 200 OK\r\n */
bool sent_content_length = false;
int headers_length = 8 + 1 + 3 + 1 + strlen(status_text) + 2; int headers_length = 8 + 1 + 3 + 1 + strlen(status_text) + 2;
for (int i = 0; i < headers_count; i += 2) for (int i = 0; i < headers_count; i += 2)
{ {
/* Key: Value\r\n */ /* Key: Value\r\n */
headers_length += strlen(headers[i]) + 2 + strlen(headers[i + 1]) + 2; headers_length += strlen(headers[i]) + 2 + strlen(headers[i + 1]) + 2;
if (strcasecmp(headers[i], "content-length") == 0)
{
sent_content_length = true;
}
} }
/* \r\n */ /* \r\n */
headers_length += 2; headers_length += 2;
char content_length_buffer[32] = { 0 };
int content_length_buffer_length = 0;
if (!sent_content_length)
{
content_length_buffer_length = snprintf(content_length_buffer, sizeof(content_length_buffer), "Content-Length: %zd\r\n", content_length);
headers_length += content_length_buffer_length;
}
uv_write_t* write = tf_malloc(sizeof(uv_write_t) + headers_length + content_length + 1); uv_write_t* write = tf_malloc(sizeof(uv_write_t) + headers_length + content_length + 1);
*write = (uv_write_t) { .data = request->connection }; *write = (uv_write_t) { .data = request->connection };
char* buffer = (char*)(write + 1); char* buffer = (char*)(write + 1);
@ -313,6 +326,11 @@ void tf_http_respond(tf_http_request_t* request, int status, const char** header
{ {
offset += snprintf(buffer + offset, headers_length + 1 - offset, "%s: %s\r\n", headers[i], headers[i + 1]); offset += snprintf(buffer + offset, headers_length + 1 - offset, "%s: %s\r\n", headers[i], headers[i + 1]);
} }
if (!sent_content_length)
{
memcpy(buffer + offset, content_length_buffer, content_length_buffer_length);
offset += content_length_buffer_length;
}
offset += snprintf(buffer + offset, headers_length + 1 - offset, "\r\n"); offset += snprintf(buffer + offset, headers_length + 1 - offset, "\r\n");
assert(offset == headers_length); assert(offset == headers_length);
if (content_length) if (content_length)