void LibEventTransport::removeHeaderImpl(const char *name) {
ASSERT(name && *name);
ASSERT(m_request->output_headers);
if (m_sendStarted) {
Logger::Error("trying to remove header '%s' after 1st chunk", name);
return;
}
evhttp_remove_header(m_request->output_headers, name);
}
static void got_api(struct evhttp_request* req, void* userdata)
{
struct req_data* d = (struct req_data*) userdata;
if(req->response_code != 200)
{
evhttp_send_error(d->req, 500, "Internal Server Error");
free_req_data(&d);
fprintf(stderr, "info.c:got_api(): api returned http status %d\n", (int)(req->response_code));
return;
}
XML_Parser parser = XML_ParserCreate(NULL);
int done;
int depth = 0;
XML_SetUserData(parser, d);
XML_SetElementHandler(parser, startElement, endElement);
XML_SetCharacterDataHandler(parser, xmlData);
char buf[4096];
int buflen;
while((buflen = evbuffer_remove(req->input_buffer, buf, 4096)) > 0)
{
if(XML_Parse(parser, buf, buflen, 0) == XML_STATUS_ERROR)
{
evhttp_send_error(d->req, 500, "Internal Server Error");
free_req_data(&d);
fprintf(stderr, "info.c:got_api(): error parsing xml: %s\n", XML_ErrorString(XML_GetErrorCode(parser)));
return;
}
}
XML_ParserFree(parser);
// return static result
struct evbuffer *evbuf;
evbuf = evbuffer_new();
if (buf == NULL)
{
evhttp_send_error(d->req, 500, "Internal Server Error");
free_req_data(&d);
fprintf(stderr, "info.c:got_api(): couldn't alloc evbuffer\n");
return;
}
evhttp_remove_header(d->req->output_headers, "content-type");
evhttp_add_header(d->req->output_headers, "content-type", "application/json");
evhttp_add_header(d->req->output_headers, "cache-control", "no-cache");
evbuffer_add_printf(evbuf, "{ \"eventName\": \"%s\", \"description\": \"%s\", \"serverTime\": %d, \"startTime\": %d, \"duration\": %d, \"login\": \"%s\", \"title\": \"%s\", \"profile_image\": \"%s\" }\n", d->event_title, d->description, (int)time(0), (int)(d->start), d->duration, d->login, d->channel_title, d->profile_image);
evhttp_send_reply(d->req, 200, "OK", evbuf);
evbuffer_free(evbuf);
free_req_data(&d);
}
static int
aspirin_response_each_header(VALUE _key, VALUE _val, VALUE headers)
{
VALUE key = rb_str_to_str(_key);
VALUE val = rb_str_to_str(_val);
if(RSTRING_LEN(key) > 0 && RSTRING_LEN(val) > 0)
{
evhttp_remove_header(DATA_PTR(headers), RSTRING_PTR(key));
evhttp_add_header(DATA_PTR(headers), RSTRING_PTR(key), RSTRING_PTR(val));
}
return ST_CONTINUE;
}
/* Create the headers needed for an outgoing HTTP request, adds them to
* the request's header list, and writes the request line to the
* connection's output buffer.
*/
static void
evhttp_make_header_request(struct evhttp_connection *evcon,
struct evhttp_request *req)
{
const char *method;
evhttp_remove_header(req->output_headers, "Proxy-Connection");
/* Generate request line */
method = evhttp_method(req->type);
evbuffer_add_printf(bufferevent_get_output(evcon->bufev),
"%s %s HTTP/%d.%d\r\n",
method, req->uri, req->major, req->minor);
/* Add the content length on a post or put request if missing */
if ((req->type == EVHTTP_REQ_POST || req->type == EVHTTP_REQ_PUT) &&
evhttp_find_header(req->output_headers, "Content-Length") == NULL){
char size[22];
evutil_snprintf(size, sizeof(size), EV_SIZE_FMT,
EV_SIZE_ARG(evbuffer_get_length(req->output_buffer)));
evhttp_add_header(req->output_headers, "Content-Length", size);
}
}
void LibEventTransport::removeRequestHeaderImpl(const char *name) {
ASSERT(name && *name);
ASSERT(m_request->input_headers);
evhttp_remove_header(m_request->input_headers, name);
m_requestHeaders.erase(name);
}
/* Thread: httpd */
void
httpd_stream_file(struct evhttp_request *req, int id)
{
struct media_file_info *mfi;
struct stream_ctx *st;
void (*stream_cb)(int fd, short event, void *arg);
struct stat sb;
struct timeval tv;
struct evhttp_connection *evcon;
struct evkeyvalq *input_headers;
struct evkeyvalq *output_headers;
const char *param;
const char *param_end;
const char *ua;
const char *client_codecs;
char buf[64];
int64_t offset;
int64_t end_offset;
off_t pos;
int transcode;
int ret;
offset = 0;
end_offset = 0;
input_headers = evhttp_request_get_input_headers(req);
param = evhttp_find_header(input_headers, "Range");
if (param)
{
DPRINTF(E_DBG, L_HTTPD, "Found Range header: %s\n", param);
/* Start offset */
ret = safe_atoi64(param + strlen("bytes="), &offset);
if (ret < 0)
{
DPRINTF(E_LOG, L_HTTPD, "Invalid start offset, will stream whole file (%s)\n", param);
offset = 0;
}
/* End offset, if any */
else
{
param_end = strchr(param, '-');
if (param_end && (strlen(param_end) > 1))
{
ret = safe_atoi64(param_end + 1, &end_offset);
if (ret < 0)
{
DPRINTF(E_LOG, L_HTTPD, "Invalid end offset, will stream to end of file (%s)\n", param);
end_offset = 0;
}
if (end_offset < offset)
{
DPRINTF(E_LOG, L_HTTPD, "End offset < start offset, will stream to end of file (%" PRIi64 " < %" PRIi64 ")\n", end_offset, offset);
end_offset = 0;
}
}
}
}
mfi = db_file_fetch_byid(id);
if (!mfi)
{
DPRINTF(E_LOG, L_HTTPD, "Item %d not found\n", id);
evhttp_send_error(req, HTTP_NOTFOUND, "Not Found");
return;
}
if (mfi->data_kind != DATA_KIND_FILE)
{
evhttp_send_error(req, 500, "Cannot stream radio station");
goto out_free_mfi;
}
st = (struct stream_ctx *)malloc(sizeof(struct stream_ctx));
if (!st)
{
DPRINTF(E_LOG, L_HTTPD, "Out of memory for struct stream_ctx\n");
evhttp_send_error(req, HTTP_SERVUNAVAIL, "Internal Server Error");
goto out_free_mfi;
}
memset(st, 0, sizeof(struct stream_ctx));
st->fd = -1;
ua = evhttp_find_header(input_headers, "User-Agent");
client_codecs = evhttp_find_header(input_headers, "Accept-Codecs");
transcode = transcode_needed(ua, client_codecs, mfi->codectype);
output_headers = evhttp_request_get_output_headers(req);
if (transcode)
{
DPRINTF(E_INFO, L_HTTPD, "Preparing to transcode %s\n", mfi->path);
stream_cb = stream_chunk_xcode_cb;
st->xcode = transcode_setup(mfi, XCODE_PCM16_HEADER, &st->size);
if (!st->xcode)
{
DPRINTF(E_WARN, L_HTTPD, "Transcoding setup failed, aborting streaming\n");
evhttp_send_error(req, HTTP_SERVUNAVAIL, "Internal Server Error");
goto out_free_st;
}
if (!evhttp_find_header(output_headers, "Content-Type"))
evhttp_add_header(output_headers, "Content-Type", "audio/wav");
}
else
{
/* Stream the raw file */
DPRINTF(E_INFO, L_HTTPD, "Preparing to stream %s\n", mfi->path);
st->buf = (uint8_t *)malloc(STREAM_CHUNK_SIZE);
if (!st->buf)
{
DPRINTF(E_LOG, L_HTTPD, "Out of memory for raw streaming buffer\n");
evhttp_send_error(req, HTTP_SERVUNAVAIL, "Internal Server Error");
goto out_free_st;
}
stream_cb = stream_chunk_raw_cb;
st->fd = open(mfi->path, O_RDONLY);
if (st->fd < 0)
{
DPRINTF(E_LOG, L_HTTPD, "Could not open %s: %s\n", mfi->path, strerror(errno));
evhttp_send_error(req, HTTP_NOTFOUND, "Not Found");
goto out_cleanup;
}
ret = stat(mfi->path, &sb);
if (ret < 0)
{
DPRINTF(E_LOG, L_HTTPD, "Could not stat() %s: %s\n", mfi->path, strerror(errno));
evhttp_send_error(req, HTTP_NOTFOUND, "Not Found");
goto out_cleanup;
}
st->size = sb.st_size;
pos = lseek(st->fd, offset, SEEK_SET);
if (pos == (off_t) -1)
{
DPRINTF(E_LOG, L_HTTPD, "Could not seek into %s: %s\n", mfi->path, strerror(errno));
evhttp_send_error(req, HTTP_BADREQUEST, "Bad Request");
goto out_cleanup;
}
st->offset = offset;
st->end_offset = end_offset;
/* Content-Type for video files is different than for audio files
* and overrides whatever may have been set previously, like
* application/x-dmap-tagged when we're speaking DAAP.
*/
if (mfi->has_video)
{
/* Front Row and others expect video/<type> */
ret = snprintf(buf, sizeof(buf), "video/%s", mfi->type);
if ((ret < 0) || (ret >= sizeof(buf)))
DPRINTF(E_LOG, L_HTTPD, "Content-Type too large for buffer, dropping\n");
else
{
evhttp_remove_header(output_headers, "Content-Type");
evhttp_add_header(output_headers, "Content-Type", buf);
}
}
/* If no Content-Type has been set and we're streaming audio, add a proper
* Content-Type for the file we're streaming. Remember DAAP streams audio
* with application/x-dmap-tagged as the Content-Type (ugh!).
*/
else if (!evhttp_find_header(output_headers, "Content-Type") && mfi->type)
{
ret = snprintf(buf, sizeof(buf), "audio/%s", mfi->type);
if ((ret < 0) || (ret >= sizeof(buf)))
DPRINTF(E_LOG, L_HTTPD, "Content-Type too large for buffer, dropping\n");
else
evhttp_add_header(output_headers, "Content-Type", buf);
}
}
st->evbuf = evbuffer_new();
if (!st->evbuf)
{
DPRINTF(E_LOG, L_HTTPD, "Could not allocate an evbuffer for streaming\n");
evhttp_clear_headers(output_headers);
evhttp_send_error(req, HTTP_SERVUNAVAIL, "Internal Server Error");
goto out_cleanup;
}
ret = evbuffer_expand(st->evbuf, STREAM_CHUNK_SIZE);
if (ret != 0)
{
DPRINTF(E_LOG, L_HTTPD, "Could not expand evbuffer for streaming\n");
evhttp_clear_headers(output_headers);
evhttp_send_error(req, HTTP_SERVUNAVAIL, "Internal Server Error");
goto out_cleanup;
}
st->ev = event_new(evbase_httpd, -1, EV_TIMEOUT, stream_cb, st);
evutil_timerclear(&tv);
if (!st->ev || (event_add(st->ev, &tv) < 0))
{
DPRINTF(E_LOG, L_HTTPD, "Could not add one-shot event for streaming\n");
evhttp_clear_headers(output_headers);
evhttp_send_error(req, HTTP_SERVUNAVAIL, "Internal Server Error");
goto out_cleanup;
}
st->id = mfi->id;
st->start_offset = offset;
st->stream_size = st->size;
st->req = req;
if ((offset == 0) && (end_offset == 0))
{
/* If we are not decoding, send the Content-Length. We don't do
* that if we are decoding because we can only guesstimate the
* size in this case and the error margin is unknown and variable.
*/
if (!transcode)
{
ret = snprintf(buf, sizeof(buf), "%" PRIi64, (int64_t)st->size);
if ((ret < 0) || (ret >= sizeof(buf)))
DPRINTF(E_LOG, L_HTTPD, "Content-Length too large for buffer, dropping\n");
else
evhttp_add_header(output_headers, "Content-Length", buf);
}
evhttp_send_reply_start(req, HTTP_OK, "OK");
}
else
{
if (offset > 0)
st->stream_size -= offset;
if (end_offset > 0)
st->stream_size -= (st->size - end_offset);
DPRINTF(E_DBG, L_HTTPD, "Stream request with range %" PRIi64 "-%" PRIi64 "\n", offset, end_offset);
ret = snprintf(buf, sizeof(buf), "bytes %" PRIi64 "-%" PRIi64 "/%" PRIi64,
offset, (end_offset) ? end_offset : (int64_t)st->size, (int64_t)st->size);
if ((ret < 0) || (ret >= sizeof(buf)))
DPRINTF(E_LOG, L_HTTPD, "Content-Range too large for buffer, dropping\n");
else
evhttp_add_header(output_headers, "Content-Range", buf);
ret = snprintf(buf, sizeof(buf), "%" PRIi64, ((end_offset) ? end_offset + 1 : (int64_t)st->size) - offset);
if ((ret < 0) || (ret >= sizeof(buf)))
DPRINTF(E_LOG, L_HTTPD, "Content-Length too large for buffer, dropping\n");
else
evhttp_add_header(output_headers, "Content-Length", buf);
evhttp_send_reply_start(req, 206, "Partial Content");
}
#ifdef HAVE_POSIX_FADVISE
if (!transcode)
{
/* Hint the OS */
posix_fadvise(st->fd, st->start_offset, st->stream_size, POSIX_FADV_WILLNEED);
posix_fadvise(st->fd, st->start_offset, st->stream_size, POSIX_FADV_SEQUENTIAL);
posix_fadvise(st->fd, st->start_offset, st->stream_size, POSIX_FADV_NOREUSE);
}
#endif
evcon = evhttp_request_get_connection(req);
evhttp_connection_set_closecb(evcon, stream_fail_cb, st);
DPRINTF(E_INFO, L_HTTPD, "Kicking off streaming for %s\n", mfi->path);
free_mfi(mfi, 0);
return;
out_cleanup:
if (st->evbuf)
evbuffer_free(st->evbuf);
if (st->xcode)
transcode_cleanup(st->xcode);
if (st->buf)
free(st->buf);
if (st->fd > 0)
close(st->fd);
out_free_st:
free(st);
out_free_mfi:
free_mfi(mfi, 0);
}
void Request_setContentType(T R, const char *type)
{
evhttp_remove_header(R->req->output_headers, "Content-type");
Request_header(R, "Content-type", type);
}
static bool HHVM_METHOD(EventHttpRequest, removeHeader, const String &key, int64_t type) {
evkeyvalq_t *headers;
EventHttpRequestResourceData *event_http_request_resource_data = FETCH_RESOURCE(this_, EventHttpRequestResourceData, s_event_http_request);
headers = get_http_req_headers((evhttp_request_t *) event_http_request_resource_data->getInternalResourceData(), type);
return evhttp_remove_header(headers, key.c_str()) == 0;
}
static void
aspirin_response_set_additional_header(struct evhttp_request* request)
{
evhttp_remove_header(request->output_headers, "Connection");
evhttp_add_header(request->output_headers, "Connection", "close");
}
/*static*/ void WebHandler::setHeader(RequestOutput& requestOutput, const std::string& header, const std::string& value) {
if (evhttp_find_header(requestOutput.replyHeaders, header.c_str())) {
evhttp_remove_header(requestOutput.replyHeaders, header.c_str());
}
evhttp_add_header(requestOutput.replyHeaders, header.c_str(), value.c_str());
}
