Brendan LE GLAUNEC
86 lines
3.8 KiB
C++
86 lines
3.8 KiB
C++
// Copyright 2016 Etix Labs
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include <describe.h>
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namespace etix {
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namespace cameradar {
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//! Sends a request to the camera using the OPTION method,
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//! then a DESCRIBE to check for valid IDs
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//! then another DESCIBE with IDs if an authentication is needed
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bool
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curl_describe(const std::string& path, bool logs) {
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CURL* csession;
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CURLcode res;
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struct curl_slist* custom_msg = NULL;
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char URL[256];
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long rc;
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FILE* protofile = NULL;
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protofile = fopen("/dev/null", "wb");
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csession = curl_easy_init();
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if (csession == NULL) return -1;
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sprintf(URL, "%s", path.c_str());
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// These are the options for all following cURL requests
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// Activate verbose if debug is needed
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curl_easy_setopt(csession, CURLOPT_TIMEOUT, 1);
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curl_easy_setopt(csession, CURLOPT_NOBODY, 1);
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curl_easy_setopt(csession, CURLOPT_URL, URL);
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curl_easy_setopt(csession, CURLOPT_RTSP_STREAM_URI, URL);
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curl_easy_setopt(csession, CURLOPT_FOLLOWLOCATION, 0);
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curl_easy_setopt(csession, CURLOPT_HEADER, 0);
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curl_easy_setopt(csession, CURLOPT_INTERLEAVEDATA, protofile);
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curl_easy_setopt(csession, CURLOPT_VERBOSE, 0);
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curl_easy_setopt(csession, CURLOPT_RTSP_REQUEST, CURL_RTSPREQ_OPTIONS);
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curl_easy_setopt(csession, CURLOPT_WRITEDATA, protofile);
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// This request will handshake the stream's server, it should always return 200 OK
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curl_easy_perform(csession);
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curl_easy_getinfo(csession, CURLINFO_RESPONSE_CODE, &rc);
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custom_msg = curl_slist_append(
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custom_msg, "Accept: application/x-rtsp-mh, application/rtsl, application/sdp");
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curl_easy_setopt(csession, CURLOPT_RTSPHEADER, custom_msg);
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curl_easy_setopt(csession, CURLOPT_RTSP_REQUEST, CURL_RTSPREQ_DESCRIBE);
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curl_easy_setopt(csession, CURLOPT_WRITEDATA, protofile);
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// This request will check if the given path is right without the need of encrypted ids
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curl_easy_perform(
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csession); // will return 404 if no ids and bad route, 401 if ids, 200 is all ok
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res = curl_easy_getinfo(csession, CURLINFO_RESPONSE_CODE, &rc);
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unsigned long pos = path.find("@");
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if (pos != std::string::npos) {
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std::string encoded = etix::tool::encode::encode64(path.substr(7, pos - 7));
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custom_msg =
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curl_slist_append(custom_msg, std::string("Authorization: Basic " + encoded).c_str());
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curl_easy_setopt(csession, CURLOPT_RTSPHEADER, custom_msg);
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curl_easy_setopt(csession, CURLOPT_RTSP_REQUEST, CURL_RTSPREQ_DESCRIBE);
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curl_easy_setopt(csession, CURLOPT_WRITEDATA, protofile);
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// This request will check if the given ids are good
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curl_easy_perform(csession); // will return 404 if good ids, 401 if bad ids
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res = curl_easy_getinfo(csession, CURLINFO_RESPONSE_CODE, &rc);
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}
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curl_easy_cleanup(csession);
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fclose(protofile);
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curl_global_cleanup();
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LOG_DEBUG_("Response code : " + std::to_string(rc), "describe");
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if (logs) {
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// Some cameras return 400 instead of 401, don't know why.
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// Some cameras timeout and then curl considers the status as 0
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if (rc != 401 && rc != 400 && rc && pos == std::string::npos)
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LOG_INFO_("Unprotected camera discovered.", "brutelogs");
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return ((res == CURLE_OK) && rc != 401 && rc != 400 && rc);
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}
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return ((res == CURLE_OK) && rc != 404 && rc != 400 && rc);
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}
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}
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}
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