vdr-plugin-streamdev/server/connectionHTTP.c
schmirl b66bf7a698 Rewrite of http menu (#439)
Including
- m3u playlists by Petri Hintukainen (#254)
- way to pass parameters to externremux by Rolf Ahrenberg
- using host header for absolute URLs for better DNAT / Reverse Proxy support
2008-03-28 15:11:40 +00:00

269 lines
7.0 KiB
C

/*
* $Id: connectionHTTP.c,v 1.13 2008/03/28 15:11:40 schmirl Exp $
*/
#include <ctype.h>
#include "server/connectionHTTP.h"
#include "server/menuHTTP.h"
#include "server/setup.h"
cConnectionHTTP::cConnectionHTTP(void):
cServerConnection("HTTP"),
m_Status(hsRequest),
m_LiveStreamer(NULL),
m_StreamerParameter(""),
m_Channel(NULL),
m_Apid(0),
m_StreamType((eStreamType)StreamdevServerSetup.HTTPStreamType),
m_ChannelList(NULL)
{
Dprintf("constructor hsRequest\n");
}
cConnectionHTTP::~cConnectionHTTP()
{
delete m_LiveStreamer;
}
bool cConnectionHTTP::Command(char *Cmd)
{
Dprintf("command %s\n", Cmd);
switch (m_Status) {
case hsRequest:
Dprintf("Request\n");
m_Request = Cmd;
m_Status = hsHeaders;
return true;
case hsHeaders:
if (*Cmd == '\0') {
m_Status = hsBody;
return ProcessRequest();
}
if (strncasecmp(Cmd, "Host:", 5) == 0) {
Dprintf("Host-Header\n");
m_Host = (std::string) skipspace(Cmd + 5);
}
Dprintf("header\n");
return true;
default:
break;
}
return false; // ??? shouldn't happen
}
bool cConnectionHTTP::ProcessRequest(void)
{
Dprintf("process\n");
if (m_Request.substr(0, 4) == "GET " && CmdGET(m_Request.substr(4))) {
switch (m_Job) {
case hjListing:
if (m_ChannelList)
return Respond("%s", true, m_ChannelList->HttpHeader().c_str());
break;
case hjTransfer:
if (m_Channel == NULL) {
DeferClose();
return Respond("HTTP/1.0 404 not found");
}
m_LiveStreamer = new cStreamdevLiveStreamer(0, m_StreamerParameter);
cDevice *device = GetDevice(m_Channel, 0);
if (device != NULL) {
device->SwitchChannel(m_Channel, false);
if (m_LiveStreamer->SetChannel(m_Channel, m_StreamType, m_Apid)) {
m_LiveStreamer->SetDevice(device);
if (!SetDSCP())
LOG_ERROR_STR("unable to set DSCP sockopt");
if (m_StreamType == stES && (m_Apid != 0 || ISRADIO(m_Channel))) {
return Respond("HTTP/1.0 200 OK")
&& Respond("Content-Type: audio/mpeg")
&& Respond("icy-name: %s", true, m_Channel->Name())
&& Respond("");
} else {
return Respond("HTTP/1.0 200 OK")
&& Respond("Content-Type: video/mpeg")
&& Respond("");
}
}
}
DELETENULL(m_LiveStreamer);
DeferClose();
return Respond("HTTP/1.0 409 Channel not available")
&& Respond("");
}
}
DeferClose();
return Respond("HTTP/1.0 400 Bad Request")
&& Respond("");
}
void cConnectionHTTP::Flushed(void)
{
std::string line;
if (m_Status != hsBody)
return;
switch (m_Job) {
case hjListing:
if (m_ChannelList) {
if (m_ChannelList->HasNext()) {
if (!Respond("%s", true, m_ChannelList->Next().c_str()))
DeferClose();
}
else {
DELETENULL(m_ChannelList);
m_Status = hsFinished;
DeferClose();
}
return;
}
// should never be reached
esyslog("streamdev-server cConnectionHTTP::Flushed(): no channel list");
m_Status = hsFinished;
break;
case hjTransfer:
Dprintf("streamer start\n");
m_LiveStreamer->Start(this);
m_Status = hsFinished;
break;
}
}
bool cConnectionHTTP::CmdGET(const std::string &Opts)
{
const char *ptr, *sp, *pp, *fp, *xp, *qp, *ep;
const cChannel *chan;
int apid = 0;
ptr = Opts.c_str();
// find begin of URL
sp = skipspace(ptr);
// find end of URL (\0 or first space character)
for (ep = sp; *ep && !isspace(*ep); ep++)
;
// find begin of query string (first ?)
for (qp = sp; qp < ep && *qp != '?'; qp++)
;
// find begin of filename (last /)
for (fp = qp; fp > sp && *fp != '/'; --fp)
;
// find begin of section params (first ;)
for (pp = sp; pp < fp && *pp != ';'; pp++)
;
// find filename extension (first .)
for (xp = fp; xp < qp && *xp != '.'; xp++)
;
if (qp - xp > 5) // too long for a filename extension
xp = qp;
std::string type, filespec, fileext, query;
// Streamtype with leading / stripped off
if (pp > sp)
type = Opts.substr(sp - ptr + 1, pp - sp - 1);
// Section parameters with leading ; stripped off
if (fp > pp)
m_StreamerParameter = Opts.substr(pp - ptr + 1, fp - pp - 1);
// file basename with leading / stripped off
if (xp > fp)
filespec = Opts.substr(fp - ptr + 1, xp - fp - 1);
// file extension including leading .
fileext = Opts.substr(xp - ptr, qp - xp);
// query string including leading ?
query = Opts.substr(qp - ptr, ep - qp);
Dprintf("before channelfromstring: type(%s) param(%s) filespec(%s) fileext(%s) query(%s)\n", type.c_str(), m_StreamerParameter.c_str(), filespec.c_str(), fileext.c_str(), query.c_str());
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, "Extern") == 0) {
m_StreamType = stExtern;
}
std::string groupTarget;
cChannelIterator *iterator = NULL;
if (filespec.compare("tree") == 0) {
const cChannel* c = NULL;
size_t groupIndex = query.find("group=");
if (groupIndex != std::string::npos)
c = cChannelList::GetGroup(atoi(query.c_str() + groupIndex + 6));
iterator = new cListTree(c);
groupTarget = filespec + fileext;
} else if (filespec.compare("groups") == 0) {
iterator = new cListGroups();
groupTarget = (std::string) "group" + fileext;
} else if (filespec.compare("group") == 0) {
const cChannel* c = NULL;
size_t groupIndex = query.find("group=");
if (groupIndex != std::string::npos)
c = cChannelList::GetGroup(atoi(query.c_str() + groupIndex + 6));
iterator = new cListGroup(c);
} else if (filespec.compare("channels") == 0) {
iterator = new cListChannels();
} else if (filespec.compare("all") == 0 ||
(filespec.empty() && fileext.empty())) {
iterator = new cListAll();
}
if (iterator) {
if (filespec.empty() || fileext.compare(".htm") == 0 || fileext.compare(".html") == 0) {
m_ChannelList = new cHtmlChannelList(iterator, m_StreamType, (filespec + fileext + query).c_str(), groupTarget.c_str());
m_Job = hjListing;
} else if (fileext.compare(".m3u") == 0) {
std::string base;
if (*(m_Host.c_str()))
base = "http://" + m_Host + "/";
else
base = (std::string) "http://" + LocalIp() + ":" +
(const char*) itoa(StreamdevServerSetup.HTTPServerPort) + "/";
if (type.empty())
{
switch (m_StreamType)
{
case stTS: base += "TS/"; break;
case stPS: base += "PS/"; break;
case stPES: base += "PES/"; break;
case stES: base += "ES/"; break;
case stExtern: base += "Extern/"; break;
default: break;
}
} else {
base += type;
if (!m_StreamerParameter.empty())
base += ";" + m_StreamerParameter;
base += "/";
}
m_ChannelList = new cM3uChannelList(iterator, base.c_str());
m_Job = hjListing;
} else {
delete iterator;
return false;
}
} else if ((chan = ChannelFromString(filespec.c_str(), &apid)) != NULL) {
m_Channel = chan;
m_Apid = apid;
Dprintf("Apid is %d\n", apid);
m_Job = hjTransfer;
} else
return false;
Dprintf("after channelfromstring\n");
return true;
}