mirror of
https://projects.vdr-developer.org/git/vdr-plugin-streamdev.git
synced 2023-10-10 19:16:51 +02:00
541 lines
16 KiB
C
541 lines
16 KiB
C
/*
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* $Id: connectionHTTP.c,v 1.21 2010/08/03 10:46:41 schmirl Exp $
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*/
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#include <ctype.h>
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#include <time.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <vdr/thread.h>
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#include <vdr/recording.h>
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#include "server/connectionHTTP.h"
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#include "server/menuHTTP.h"
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#include "server/server.h"
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#include "server/setup.h"
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cConnectionHTTP::cConnectionHTTP(void):
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cServerConnection("HTTP"),
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m_Status(hsRequest),
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m_Streamer(NULL),
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m_StreamType((eStreamType)StreamdevServerSetup.HTTPStreamType),
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m_Channel(NULL),
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m_Recording(NULL),
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m_ChannelList(NULL)
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{
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Dprintf("constructor hsRequest\n");
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m_Apid[0] = m_Apid[1] = 0;
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m_Dpid[0] = m_Dpid[1] = 0;
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}
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cConnectionHTTP::~cConnectionHTTP()
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{
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delete m_Streamer;
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delete m_Recording;
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}
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bool cConnectionHTTP::CanAuthenticate(void)
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{
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return opt_auth != NULL;
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}
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bool cConnectionHTTP::Command(char *Cmd)
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{
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Dprintf("command %s\n", Cmd);
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switch (m_Status) {
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case hsRequest:
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// parse METHOD PATH[?QUERY] VERSION
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{
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char *p, *q, *v;
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p = strchr(Cmd, ' ');
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if (p) {
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*p = 0;
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v = strchr(++p, ' ');
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if (v) {
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*v = 0;
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SetHeader("REQUEST_METHOD", Cmd);
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q = strchr(p, '?');
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if (q) {
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*q = 0;
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SetHeader("QUERY_STRING", q + 1);
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while (q++) {
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char *n = strchr(q, '&');
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if (n)
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*n = 0;
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char *e = strchr(q, '=');
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if (e)
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*e++ = 0;
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else
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e = n ? n : v;
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m_Params.insert(tStrStr(q, e));
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q = n;
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}
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}
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else
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SetHeader("QUERY_STRING", "");
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SetHeader("PATH_INFO", p);
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m_Status = hsHeaders;
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return true;
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}
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}
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}
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return false;
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case hsHeaders:
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if (*Cmd == '\0') {
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m_Status = hsBody;
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return ProcessRequest();
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}
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else if (isspace(*Cmd)) {
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; //TODO: multi-line header
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}
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else {
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// convert header name to CGI conventions:
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// uppercase, '-' replaced with '_', prefix "HTTP_"
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char *p;
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for (p = Cmd; *p != 0 && *p != ':'; p++) {
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if (*p == '-')
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*p = '_';
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else
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*p = toupper(*p);
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}
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if (*p == ':') {
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*p = 0;
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p = skipspace(++p);
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// don't disclose Authorization header
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if (strcmp(Cmd, "AUTHORIZATION") == 0) {
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char *q;
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for (q = p; *q != 0 && *q != ' '; q++)
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*q = toupper(*q);
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if (p != q) {
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*q = 0;
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SetHeader("AUTH_TYPE", p);
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m_Authorization = (std::string) skipspace(++q);
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}
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}
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else
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SetHeader(Cmd, p, "HTTP_");
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}
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}
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return true;
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default:
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// skip additional blank lines
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if (*Cmd == '\0')
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return true;
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break;
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}
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return false; // ??? shouldn't happen
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}
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bool cConnectionHTTP::ProcessRequest(void)
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{
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// keys for Headers() hash
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const static std::string AUTH_TYPE("AUTH_TYPE");
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const static std::string REQUEST_METHOD("REQUEST_METHOD");
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const static std::string PATH_INFO("PATH_INFO");
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Dprintf("process\n");
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if (!StreamdevHosts.Acceptable(RemoteIpAddr())) {
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bool authOk = opt_auth && !m_Authorization.empty();
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if (authOk) {
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tStrStrMap::const_iterator it = Headers().find(AUTH_TYPE);
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if (it == Headers().end()) {
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// no authorization header present
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authOk = false;
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}
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else if (it->second.compare("BASIC") == 0) {
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// basic auth
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authOk &= m_Authorization.compare(opt_auth) == 0;
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}
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else {
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// unsupported auth type
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authOk = false;
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}
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}
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if (!authOk) {
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isyslog("streamdev-server: HTTP authorization required");
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return HttpResponse(401, true, NULL, "WWW-authenticate: basic Realm=\"Streamdev-Server\"");
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}
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}
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tStrStrMap::const_iterator it_method = Headers().find(REQUEST_METHOD);
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tStrStrMap::const_iterator it_pathinfo = Headers().find(PATH_INFO);
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if (it_method == Headers().end() || it_pathinfo == Headers().end()) {
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// should never happen
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esyslog("streamdev-server connectionHTTP: Missing method or pathinfo");
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} else if (it_method->second.compare("GET") == 0 && ProcessURI(it_pathinfo->second)) {
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if (m_ChannelList)
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return Respond("%s", true, m_ChannelList->HttpHeader().c_str());
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else if (m_Channel != NULL) {
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cDevice *device = NULL;
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if (ProvidesChannel(m_Channel, StreamdevServerSetup.HTTPPriority))
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device = GetDevice(m_Channel, StreamdevServerSetup.HTTPPriority);
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if (device != NULL) {
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device->SwitchChannel(m_Channel, false);
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cStreamdevLiveStreamer* liveStreamer = new cStreamdevLiveStreamer(StreamdevServerSetup.HTTPPriority, this);
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m_Streamer = liveStreamer;
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if (liveStreamer->SetChannel(m_Channel, m_StreamType, m_Apid[0] ? m_Apid : NULL, m_Dpid[0] ? m_Dpid : NULL)) {
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liveStreamer->SetDevice(device);
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if (!SetDSCP())
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LOG_ERROR_STR("unable to set DSCP sockopt");
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if (m_StreamType == stEXT) {
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return Respond("HTTP/1.0 200 OK");
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} else if (m_StreamType == stES && (m_Apid[0] || m_Dpid[0] || ISRADIO(m_Channel))) {
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return HttpResponse(200, false, "audio/mpeg", "icy-name: %s", m_Channel->Name());
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} else if (ISRADIO(m_Channel)) {
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return HttpResponse(200, false, "audio/mpeg");
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} else {
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return HttpResponse(200, false, "video/mpeg");
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}
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}
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DELETENULL(m_Streamer);
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}
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return HttpResponse(503, true);
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}
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else if (m_Recording != NULL) {
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Dprintf("GET recording\n");
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cStreamdevRecStreamer* recStreamer = new cStreamdevRecStreamer(m_Recording, this);
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m_Streamer = recStreamer;
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int64_t from, to;
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uint64_t total = recStreamer->GetLength();
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if (ParseRange(from, to)) {
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int64_t length = recStreamer->SetRange(from, to);
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if (length < 0L)
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return HttpResponse(416, true, "video/mpeg", "Accept-Ranges: bytes\r\nContent-Range: bytes */%llu", (unsigned long long) total);
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else
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return HttpResponse(206, false, "video/mpeg", "Accept-Ranges: bytes\r\nContent-Range: bytes %lld-%lld/%llu\r\nContent-Length: %lld", (long long) from, (long long) to, (unsigned long long) total, (long long) length);
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}
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else
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return HttpResponse(200, false, "video/mpeg", "Accept-Ranges: bytes");
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}
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else {
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return HttpResponse(404, true);
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}
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} else if (it_method->second.compare("HEAD") == 0 && ProcessURI(it_pathinfo->second)) {
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if (m_ChannelList) {
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DeferClose();
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return Respond("%s", true, m_ChannelList->HttpHeader().c_str());
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}
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else if (m_Channel != NULL) {
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if (ProvidesChannel(m_Channel, StreamdevServerSetup.HTTPPriority)) {
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if (m_StreamType == stEXT) {
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cStreamdevLiveStreamer *liveStreamer = new cStreamdevLiveStreamer(StreamdevServerSetup.HTTPPriority, this);
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liveStreamer->SetChannel(m_Channel, m_StreamType, m_Apid[0] ? m_Apid : NULL, m_Dpid[0] ? m_Dpid : NULL);
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m_Streamer = liveStreamer;
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return Respond("HTTP/1.0 200 OK");
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} else if (m_StreamType == stES && (m_Apid[0] || m_Dpid[0] || ISRADIO(m_Channel))) {
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return HttpResponse(200, true, "audio/mpeg", "icy-name: %s", m_Channel->Name());
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} else if (ISRADIO(m_Channel)) {
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return HttpResponse(200, true, "audio/mpeg");
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} else {
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return HttpResponse(200, true, "video/mpeg");
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}
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}
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return HttpResponse(503, true);
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}
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else if (m_Recording != NULL) {
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Dprintf("HEAD recording\n");
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cStreamdevRecStreamer *recStreamer = new cStreamdevRecStreamer(m_Recording, this);
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m_Streamer = recStreamer;
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int64_t from, to;
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uint64_t total = recStreamer->GetLength();
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if (ParseRange(from, to)) {
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int64_t length = recStreamer->SetRange(from, to);
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if (length < 0L)
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return HttpResponse(416, true, "video/mpeg", "Accept-Ranges: bytes\r\nContent-Range: bytes */%llu", (unsigned long long) total);
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else
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return HttpResponse(206, true, "video/mpeg", "Accept-Ranges: bytes\r\nContent-Range: bytes %lld-%lld/%llu\r\nContent-Length: %lld", (long long) from, (long long) to, (unsigned long long) total, (long long) length);
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}
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else
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return HttpResponse(200, true, "video/mpeg", "Accept-Ranges: bytes");
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}
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else {
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return HttpResponse(404, true);
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}
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}
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return HttpResponse(400, true);
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}
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static const char *AAA[] = {
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"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
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};
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static const char *MMM[] = {
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"Jan", "Feb", "Mar", "Apr", "May", "Jun",
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"Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
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};
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bool cConnectionHTTP::HttpResponse(int Code, bool Last, const char* ContentType, const char* Headers, ...)
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{
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va_list ap;
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va_start(ap, Headers);
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#if APIVERSNUM >= 10728
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cString headers = cString::vsprintf(Headers, ap);
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#else
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cString headers = cString::sprintf(Headers, ap);
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#endif
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va_end(ap);
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bool rc;
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if (Last)
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DeferClose();
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switch (Code)
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{
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case 200: rc = Respond("HTTP/1.1 200 OK"); break;
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case 206: rc = Respond("HTTP/1.1 206 Partial Content"); break;
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case 400: rc = Respond("HTTP/1.1 400 Bad Request"); break;
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case 401: rc = Respond("HTTP/1.1 401 Authorization Required"); break;
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case 404: rc = Respond("HTTP/1.1 404 Not Found"); break;
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case 416: rc = Respond("HTTP/1.1 416 Requested range not satisfiable"); break;
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case 503: rc = Respond("HTTP/1.1 503 Service Unavailable"); break;
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default: rc = Respond("HTTP/1.1 500 Internal Server Error");
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}
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if (rc && ContentType)
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rc = Respond("Content-Type: %s", true, ContentType);
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if (rc)
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rc = Respond("Connection: close")
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&& Respond("Pragma: no-cache")
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&& Respond("Cache-Control: no-cache");
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time_t t = time(NULL);
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struct tm *gmt = gmtime(&t);
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if (rc && gmt) {
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char buf[] = "Date: AAA, DD MMM YYYY HH:MM:SS GMT";
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if (snprintf(buf, sizeof(buf), "Date: %s, %.2d %s %.4d %.2d:%.2d:%.2d GMT", AAA[gmt->tm_wday], gmt->tm_mday, MMM[gmt->tm_mon], gmt->tm_year + 1900, gmt->tm_hour, gmt->tm_min, gmt->tm_sec) == sizeof(buf) - 1)
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rc = Respond(buf);
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}
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if (rc && strlen(Headers) > 0)
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rc = Respond(headers);
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tStrStrMap::iterator it = m_Params.begin();
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while (rc && it != m_Params.end()) {
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static const char DLNA_POSTFIX[] = ".dlna.org";
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if (it->first.rfind(DLNA_POSTFIX) + sizeof(DLNA_POSTFIX) - 1 == it->first.length())
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rc = Respond("%s: %s", true, it->first.c_str(), it->second.c_str());
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++it;
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}
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return rc && Respond("");
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}
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bool cConnectionHTTP::ParseRange(int64_t &From, int64_t &To) const
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{
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const static std::string RANGE("HTTP_RANGE");
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From = To = 0L;
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tStrStrMap::const_iterator it = Headers().find(RANGE);
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if (it != Headers().end()) {
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size_t b = it->second.find("bytes=");
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if (b != std::string::npos) {
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char* e = NULL;
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const char* r = it->second.c_str() + b + sizeof("bytes=") - 1;
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if (strchr(r, ',') != NULL)
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esyslog("streamdev-server cConnectionHTTP::GetRange: Multi-ranges not supported");
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From = strtol(r, &e, 10);
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if (r != e) {
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if (From < 0L) {
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To = -1L;
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return *e == 0 || *e == ',';
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}
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else if (*e == '-') {
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r = e + 1;
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if (*r == 0 || *e == ',') {
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To = -1L;
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return true;
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}
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To = strtol(r, &e, 10);
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return r != e && To >= From &&
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(*e == 0 || *e == ',');
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}
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}
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}
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}
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return false;
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}
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void cConnectionHTTP::Flushed(void)
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{
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if (m_Status != hsBody)
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return;
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if (m_ChannelList) {
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if (m_ChannelList->HasNext()) {
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if (!Respond("%s", true, m_ChannelList->Next().c_str()))
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DeferClose();
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}
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else {
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DELETENULL(m_ChannelList);
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m_Status = hsFinished;
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DeferClose();
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}
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return;
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}
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else if (m_Streamer != NULL) {
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Dprintf("streamer start\n");
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m_Streamer->Start(this);
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m_Status = hsFinished;
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}
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else {
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// should never be reached
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esyslog("streamdev-server cConnectionHTTP::Flushed(): no job to do");
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m_Status = hsFinished;
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}
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}
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cChannelList* cConnectionHTTP::ChannelListFromString(const std::string& Path, const std::string& Filebase, const std::string& Fileext) const
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{
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std::string groupTarget;
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cChannelIterator *iterator = NULL;
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const static std::string GROUP("group");
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if (Filebase.compare("tree") == 0) {
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const cChannel* c = NULL;
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tStrStrMap::const_iterator it = m_Params.find(GROUP);
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if (it != m_Params.end())
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c = cChannelList::GetGroup(atoi(it->second.c_str()));
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iterator = new cListTree(c);
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groupTarget = Filebase + Fileext;
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} else if (Filebase.compare("groups") == 0) {
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iterator = new cListGroups();
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groupTarget = (std::string) "group" + Fileext;
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} else if (Filebase.compare("group") == 0) {
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const cChannel* c = NULL;
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tStrStrMap::const_iterator it = m_Params.find(GROUP);
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if (it != m_Params.end())
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c = cChannelList::GetGroup(atoi(it->second.c_str()));
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iterator = new cListGroup(c);
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} else if (Filebase.compare("channels") == 0) {
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iterator = new cListChannels();
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} else if (Filebase.compare("all") == 0 ||
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(Filebase.empty() && Fileext.empty())) {
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iterator = new cListAll();
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}
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if (iterator) {
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// assemble base url: http://host/path/
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std::string base;
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const static std::string HOST("HTTP_HOST");
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tStrStrMap::const_iterator it = Headers().find(HOST);
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if (it != Headers().end())
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base = "http://" + it->second + "/";
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else
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base = (std::string) "http://" + LocalIp() + ":" +
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(const char*) itoa(StreamdevServerSetup.HTTPServerPort) + "/";
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base += Path;
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if (Filebase.empty() || Fileext.compare(".htm") == 0 || Fileext.compare(".html") == 0) {
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std::string self = Filebase + Fileext;
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std::string rss = Filebase + ".rss";
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tStrStrMap::const_iterator it = Headers().find("QUERY_STRING");
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if (it != Headers().end() && !it->second.empty()) {
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self += '?' + it->second;
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rss += '?' + it->second;
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}
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return new cHtmlChannelList(iterator, m_StreamType, self.c_str(), rss.c_str(), groupTarget.c_str());
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} else if (Fileext.compare(".m3u") == 0) {
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return new cM3uChannelList(iterator, base.c_str());
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} else if (Fileext.compare(".rss") == 0) {
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std::string html = Filebase + ".html";
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tStrStrMap::const_iterator it = Headers().find("QUERY_STRING");
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if (it != Headers().end() && !it->second.empty()) {
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html += '?' + it->second;
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}
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return new cRssChannelList(iterator, base.c_str(), html.c_str());
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} else {
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delete iterator;
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}
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}
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return NULL;
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}
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cRecording* cConnectionHTTP::RecordingFromString(const char *FileBase, const char *FileExt) const
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{
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if (strcasecmp(FileExt, ".rec") != 0)
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return NULL;
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char *p = NULL;
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unsigned long l = strtoul(FileBase, &p, 0);
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if (p != FileBase && l > 0L) {
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if (*p == ':') {
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// get recording by dev:inode
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unsigned long inode = strtoul(p + 1, &p, 0);
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if (*p == 0 && inode > 0) {
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struct stat st;
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cThreadLock RecordingsLock(&Recordings);
|
|
for (cRecording *rec = Recordings.First(); rec; rec = Recordings.Next(rec)) {
|
|
if (stat(rec->FileName(), &st) == 0 && st.st_dev == (dev_t) l && st.st_ino == (ino_t) inode)
|
|
return new cRecording(rec->FileName());
|
|
}
|
|
}
|
|
}
|
|
else if (*p == 0) {
|
|
// get recording by index
|
|
cThreadLock RecordingsLock(&Recordings);
|
|
cRecording* rec = Recordings.Get((int) l - 1);
|
|
if (rec)
|
|
return new cRecording(rec->FileName());
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
bool cConnectionHTTP::ProcessURI(const std::string& PathInfo)
|
|
{
|
|
std::string filespec, fileext;
|
|
size_t file_pos = PathInfo.rfind('/');
|
|
|
|
if (file_pos != std::string::npos) {
|
|
size_t ext_pos = PathInfo.rfind('.');
|
|
// file basename with leading / stripped off
|
|
filespec = PathInfo.substr(file_pos + 1, ext_pos - file_pos - 1);
|
|
if (ext_pos != std::string::npos)
|
|
// file extension including leading .
|
|
fileext = PathInfo.substr(ext_pos);
|
|
}
|
|
if (fileext.length() > 5) {
|
|
//probably not an extension
|
|
filespec += fileext;
|
|
fileext.clear();
|
|
}
|
|
|
|
// Streamtype with leading / stripped off
|
|
std::string type = PathInfo.substr(1, PathInfo.find_first_of("/;", 1) - 1);
|
|
const char* pType = type.c_str();
|
|
if (strcasecmp(pType, "PS") == 0) {
|
|
m_StreamType = stPS;
|
|
} else if (strcasecmp(pType, "PES") == 0) {
|
|
m_StreamType = stPES;
|
|
} else if (strcasecmp(pType, "TS") == 0) {
|
|
m_StreamType = stTS;
|
|
} else if (strcasecmp(pType, "ES") == 0) {
|
|
m_StreamType = stES;
|
|
} else if (strcasecmp(pType, "EXT") == 0) {
|
|
m_StreamType = stEXT;
|
|
}
|
|
|
|
Dprintf("before channelfromstring: type(%s) filespec(%s) fileext(%s)\n", type.c_str(), filespec.c_str(), fileext.c_str());
|
|
|
|
if ((m_ChannelList = ChannelListFromString(PathInfo.substr(1, file_pos), filespec.c_str(), fileext.c_str())) != NULL) {
|
|
Dprintf("Channel list requested\n");
|
|
return true;
|
|
} else if ((m_Recording = RecordingFromString(filespec.c_str(), fileext.c_str())) != NULL) {
|
|
Dprintf("Recording %s found\n", m_Recording->Name());
|
|
return true;
|
|
} else if ((m_Channel = ChannelFromString(filespec.c_str(), &m_Apid[0], &m_Dpid[0])) != NULL) {
|
|
Dprintf("Channel found. Apid/Dpid is %d/%d\n", m_Apid[0], m_Dpid[0]);
|
|
return true;
|
|
} else
|
|
return false;
|
|
}
|
|
|
|
cString cConnectionHTTP::ToText() const
|
|
{
|
|
cString str = cServerConnection::ToText();
|
|
return m_Streamer ? cString::sprintf("%s\t%s", *str, *m_Streamer->ToText()) : str;
|
|
}
|