62 lines
2.3 KiB
C++
62 lines
2.3 KiB
C++
/// \file stream.cpp
|
|
/// Utilities for handling streams.
|
|
|
|
#include "stream.h"
|
|
#include "procs.h"
|
|
#include "socket.h"
|
|
|
|
/// Filters the streamname, removing invalid characters and converting all
|
|
/// letters to lowercase. If a '?' character is found, everything following
|
|
/// that character is deleted. The original string is modified.
|
|
void Util::Stream::sanitizeName(std::string & streamname){
|
|
//strip anything that isn't numbers, digits or underscores
|
|
for (std::string::iterator i=streamname.end()-1; i>=streamname.begin(); --i){
|
|
if (*i == '?'){streamname.erase(i, streamname.end()); break;}
|
|
if (!isalpha(*i) && !isdigit(*i) && *i != '_'){
|
|
streamname.erase(i);
|
|
}else{
|
|
*i=tolower(*i);
|
|
}
|
|
}
|
|
}
|
|
|
|
Socket::Connection Util::Stream::getLive(std::string streamname){
|
|
sanitizeName(streamname);
|
|
return Socket::Connection("/tmp/mist/stream_"+streamname);
|
|
}
|
|
|
|
/// Starts a process for the VoD stream.
|
|
Socket::Connection Util::Stream::getVod(std::string streamname){
|
|
sanitizeName(streamname);
|
|
std::string filename = "/tmp/mist/vod_" + streamname;
|
|
/// \todo Is the name unique enough?
|
|
std::string name = "MistPlayer " + filename;
|
|
const char *argv[] = { "MistPlayer", filename.c_str(), NULL };
|
|
int fdin = -1, fdout = -1;
|
|
Util::Procs::StartPiped(name, (char **)argv, &fdin, &fdout, 0);
|
|
// if StartPiped fails then fdin and fdout will be unmodified (-1)
|
|
return Socket::Connection(fdin, fdout);
|
|
}
|
|
|
|
/// Probe for available streams. Currently first VoD, then Live.
|
|
Socket::Connection Util::Stream::getStream(std::string streamname){
|
|
Socket::Connection vod = getVod(streamname);
|
|
if (vod.connected()){
|
|
return vod;
|
|
}
|
|
return getLive(streamname);
|
|
}
|
|
/// Create a stream on the system.
|
|
/// Filters the streamname, removing invalid characters and
|
|
/// converting all letters to lowercase.
|
|
/// If a '?' character is found, everything following that character is deleted.
|
|
/// If the /tmp/mist directory doesn't exist yet, this will create it.
|
|
Socket::Server Util::Stream::makeLive(std::string streamname){
|
|
sanitizeName(streamname);
|
|
std::string loc = "/tmp/mist/stream_"+streamname;
|
|
//attempt to create the /tmp/mist directory if it doesn't exist already.
|
|
//ignore errors - we catch all problems in the Socket::Server creation already
|
|
mkdir("/tmp/mist", S_IRWXU | S_IRWXG | S_IRWXO);
|
|
//create and return the Socket::Server
|
|
return Socket::Server(loc);
|
|
}
|