mirror of
https://projects.vdr-developer.org/git/vdr-plugin-streamdev.git
synced 2023-10-10 19:16:51 +02:00
576 lines
13 KiB
C
576 lines
13 KiB
C
/*
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* $Id: socket.c,v 1.3 2005/02/08 15:34:38 lordjaxom Exp $
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*/
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#include <tools/select.h>
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#include <string.h>
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#include <errno.h>
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#include <stdlib.h>
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#include "client/socket.h"
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#include "client/setup.h"
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#include "client/remote.h"
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#include "common.h"
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#include "i18n.h"
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cClientSocket ClientSocket;
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cClientSocket::cClientSocket(void)
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{
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memset(m_DataSockets, 0, sizeof(cTBSocket*) * si_Count);
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Reset();
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}
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cClientSocket::~cClientSocket()
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{
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Reset();
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if (IsOpen()) Quit();
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}
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void cClientSocket::Reset(void)
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{
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for (int it = 0; it < si_Count; ++it) {
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if (m_DataSockets[it] != NULL)
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DELETENULL(m_DataSockets[it]);
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}
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}
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cTBSocket *cClientSocket::DataSocket(eSocketId Id) const {
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return m_DataSockets[Id];
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}
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bool cClientSocket::Command(const cTBString &Command, uint Expected,
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uint TimeoutMs) {
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errno = 0;
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cTBString pkt = Command + "\015\012";
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Dprintf("OUT: |%s|\n", (const char*)Command);
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cTimeMs starttime;
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if (!TimedWrite((const char*)pkt, pkt.Length(), TimeoutMs)) {
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esyslog("Streamdev: Lost connection to %s:%d: %s",
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(const char*)RemoteIp(), RemotePort(), strerror(errno));
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Close();
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return false;
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}
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uint64 elapsed = starttime.Elapsed();
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if (Expected != 0) { // XXX+ What if elapsed > TimeoutMs?
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TimeoutMs -= elapsed;
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return Expect(Expected, NULL, TimeoutMs);
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}
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return true;
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}
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bool cClientSocket::Expect(uint Expected, cTBString *Result, uint TimeoutMs) {
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char *buffer;
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char *endptr;
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int bufcount;
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bool res;
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errno = 0;
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buffer = new char[BUFSIZ + 1];
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if ((bufcount = ReadUntil(buffer, BUFSIZ, "\012", TimeoutMs))
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== -1) {
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esyslog("Streamdev: Lost connection to %s:%d: %s",
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(const char*)RemoteIp(), RemotePort(), strerror(errno));
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Close();
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delete[] buffer;
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return false;
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}
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if (buffer[bufcount - 1] == '\015')
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--bufcount;
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buffer[bufcount] = '\0';
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Dprintf("IN: |%s|\n", buffer);
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if (Result != NULL)
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*Result = buffer;
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res = strtoul(buffer, &endptr, 10) == Expected;
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delete[] buffer;
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return res;
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}
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bool cClientSocket::CheckConnection(void) {
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CMD_LOCK;
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if (IsOpen()) {
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cTBSelect select;
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Dprintf("connection open\n");
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// XXX+ check if connection is still alive (is there a better way?)
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// There REALLY shouldn't be anything readable according to PROTOCOL here
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// If there is, assume it's an eof signal (subseq. read would return 0)
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select.Add(*this, false);
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int res;
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if ((res = select.Select(0)) == 0) {
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Dprintf("select said nothing happened\n");
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return true;
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}
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Dprintf("closing connection (res was %d)", res);
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Close();
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}
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if (!Connect(StreamdevClientSetup.RemoteIp, StreamdevClientSetup.RemotePort)){
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esyslog("ERROR: Streamdev: Couldn't connect to %s:%d: %s",
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(const char*)StreamdevClientSetup.RemoteIp,
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StreamdevClientSetup.RemotePort, strerror(errno));
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return false;
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}
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if (!Expect(220)) {
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if (errno == 0)
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esyslog("ERROR: Streamdev: Didn't receive greeting from %s:%d",
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(const char*)RemoteIp(), RemotePort());
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Close();
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return false;
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}
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if (!Command((cTBString)"CAPS TSPIDS", 220)) {
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if (errno == 0)
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esyslog("ERROR: Streamdev: Couldn't negotiate capabilities on %s:%d",
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(const char*)RemoteIp(), RemotePort());
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Close();
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return false;
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}
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isyslog("Streamdev: Connected to server %s:%d using capabilities TSPIDS",
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(const char*)RemoteIp(), RemotePort());
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return true;
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}
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bool cClientSocket::ProvidesChannel(const cChannel *Channel, int Priority) {
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cTBString buffer;
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if (!CheckConnection()) return false;
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CMD_LOCK;
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if (!Command("PROV " + cTBString::Number(Priority) + " "
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+ Channel->GetChannelID().ToString()))
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return false;
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if (!Expect(220, &buffer)) {
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if (buffer.Left(3) != "560" && errno == 0)
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esyslog("ERROR: Streamdev: Couldn't check if %s:%d provides channel %s",
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(const char*)RemoteIp(), RemotePort(), Channel->Name());
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return false;
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}
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return true;
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}
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bool cClientSocket::CreateDataConnection(eSocketId Id) {
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int idx;
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cTBSocket listen(SOCK_STREAM);
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cTBString buffer;
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if (!CheckConnection()) return false;
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if (m_DataSockets[Id] != NULL)
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DELETENULL(m_DataSockets[Id]);
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if (!listen.Listen((const char*)LocalIp(), 0, 1)) {
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esyslog("ERROR: Streamdev: Couldn't create data connection: %s",
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strerror(errno));
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return false;
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}
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buffer.Format("PORT %d %s,%d,%d", Id, (const char*)LocalIp(),
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(listen.LocalPort() >> 8) & 0xff, listen.LocalPort() & 0xff);
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idx = 5;
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while ((idx = buffer.Find('.', idx + 1)) != -1)
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buffer[idx] = ',';
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CMD_LOCK;
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if (!Command(buffer, 220)) {
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Dprintf("error: %m\n");
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if (errno == 0)
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esyslog("ERROR: Streamdev: Couldn't establish data connection to %s:%d",
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(const char*)RemoteIp(), RemotePort());
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return false;
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}
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/* The server SHOULD do the following:
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* - get PORT command
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* - connect to socket
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* - return 220
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*/
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m_DataSockets[Id] = new cTBSocket;
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if (!m_DataSockets[Id]->Accept(listen)) {
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esyslog("ERROR: Streamdev: Couldn't establish data connection to %s:%d%s%s",
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(const char*)RemoteIp(), RemotePort(), errno == 0 ? "" : ": ",
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errno == 0 ? "" : strerror(errno));
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DELETENULL(m_DataSockets[Id]);
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return false;
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}
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return true;
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}
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bool cClientSocket::SetChannelDevice(const cChannel *Channel) {
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if (!CheckConnection()) return false;
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CMD_LOCK;
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if (!Command((cTBString)"TUNE " + Channel->GetChannelID().ToString(), 220)) {
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if (errno == 0)
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esyslog("ERROR: Streamdev: Couldn't tune %s:%d to channel %s",
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(const char*)RemoteIp(), RemotePort(), Channel->Name());
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return false;
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}
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return true;
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}
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bool cClientSocket::SetPid(int Pid, bool On) {
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if (!CheckConnection()) return false;
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CMD_LOCK;
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if (!Command((On ? "ADDP " : "DELP ") + cTBString::Number(Pid), 220)) {
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if (errno == 0)
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esyslog("Streamdev: Pid %d not available from %s:%d", Pid,
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(const char*)LocalIp(), LocalPort());
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return false;
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}
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return true;
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}
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#if VDRVERSNUM >= 10300
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bool cClientSocket::SetFilter(ushort Pid, uchar Tid, uchar Mask, bool On) {
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cTBString cmd;
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if (!CheckConnection()) return false;
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CMD_LOCK;
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cmd.Format("%s %hu %hhu %hhu", On ? "ADDF" : "DELF", Pid, Tid, Mask);
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if (!Command(cmd, 220)) {
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if (errno == 0)
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esyslog("Streamdev: Filter %hu, %hhu, %hhu not available from %s:%d",
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Pid, Tid, Mask, (const char*)LocalIp(), LocalPort());
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return false;
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}
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return true;
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}
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#endif
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bool cClientSocket::CloseDvr(void) {
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if (!CheckConnection()) return false;
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CMD_LOCK;
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if (m_DataSockets[siLive] != NULL) {
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if (!Command("ABRT " + cTBString::Number(siLive), 220)) {
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if (errno == 0)
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esyslog("ERROR: Streamdev: Couldn't cleanly close data connection");
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return false;
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}
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DELETENULL(m_DataSockets[siLive]);
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}
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return true;
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}
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bool cClientSocket::SynchronizeEPG(void) {
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cTBString buffer;
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bool res;
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FILE *epgfd;
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if (!CheckConnection()) return false;
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isyslog("Streamdev: Synchronizing EPG from server\n");
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CMD_LOCK;
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if (!Command("LSTE"))
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return false;
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if ((epgfd = tmpfile()) == NULL) {
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esyslog("ERROR: Streamdev: Error while processing EPG data: %s",
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strerror(errno));
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return false;
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}
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while ((res = Expect(215, &buffer))) {
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if (buffer[3] == ' ') break;
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fputs((const char*)buffer + 4, epgfd);
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fputc('\n', epgfd);
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}
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if (!res) {
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if (errno == 0)
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esyslog("ERROR: Streamdev: Couldn't fetch EPG data from %s:%d",
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(const char*)RemoteIp(), RemotePort());
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fclose(epgfd);
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return false;
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}
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rewind(epgfd);
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if (cSchedules::Read(epgfd))
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#if VDRVERSNUM < 10300
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cSIProcessor::TriggerDump();
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#else
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cSchedules::Cleanup(true);
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#endif
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else {
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esyslog("ERROR: Streamdev: Parsing EPG data failed");
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fclose(epgfd);
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return false;
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}
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fclose(epgfd);
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return true;
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}
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bool cClientSocket::Quit(void) {
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bool res;
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if (!CheckConnection()) return false;
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if (!(res = Command("QUIT", 221))) {
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if (errno == 0)
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esyslog("ERROR: Streamdev: Couldn't quit command connection to %s:%d",
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(const char*)RemoteIp(), RemotePort());
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}
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Close();
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return res;
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}
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bool cClientSocket::LoadRecordings(cRemoteRecordings &Recordings) {
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cTBString buffer;
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bool res;
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if (!CheckConnection()) return false;
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CMD_LOCK;
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if (!Command("LSTR"))
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return false;
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while ((res = Expect(250, &buffer))) {
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cRemoteRecording *rec = new cRemoteRecording((const char*)buffer + 4);
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Dprintf("recording valid: %d\n", rec->IsValid());
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if (rec->IsValid())
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Recordings.Add(rec);
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else
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delete rec;
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if (buffer[3] == ' ') break;
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}
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if (!res && buffer.Left(3) != "550") {
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if (errno == 0)
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esyslog("ERROR: Streamdev: Couldn't fetch recordings from %s:%d",
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(const char*)RemoteIp(), RemotePort());
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return false;
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}
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for (cRemoteRecording *r = Recordings.First(); r; r = Recordings.Next(r)) {
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if (!Command("LSTR " + cTBString::Number(r->Index())))
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return false;
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if (Expect(250, &buffer))
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r->ParseInfo((const char*)buffer + 4);
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else if (buffer.Left(3) != "550") {
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if (errno == 0)
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esyslog("ERROR: Streamdev: Couldn't fetch details for recording from "
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"%s:%d", (const char*)RemoteIp(), RemotePort());
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return false;
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}
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Dprintf("recording complete: %d\n", r->Index());
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}
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return res;
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}
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bool cClientSocket::StartReplay(const char *Filename) {
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if (!CheckConnection()) return false;
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CMD_LOCK;
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if (!Command((cTBString)"PLAY " + Filename, 220)) {
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if (errno == 0)
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esyslog("ERROR: Streamdev: Couldn't replay \"%s\" from %s:%d",
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Filename, (const char*)RemoteIp(), RemotePort());
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return false;
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}
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return true;
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}
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bool cClientSocket::AbortReplay(void) {
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if (!CheckConnection()) return false;
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CMD_LOCK;
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if (m_DataSockets[siReplay] != NULL) {
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if (!Command("ABRT " + cTBString::Number(siReplay), 220)) {
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if (errno == 0)
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esyslog("ERROR: Streamdev: Couldn't cleanly close data connection");
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return false;
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}
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DELETENULL(m_DataSockets[siReplay]);
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}
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return true;
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}
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bool cClientSocket::DeleteRecording(cRemoteRecording *Recording) {
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bool res;
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cTBString buffer;
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cRemoteRecording *rec = NULL;
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if (!CheckConnection())
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return false;
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CMD_LOCK;
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if (!Command("LSTR"))
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return false;
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while ((res = Expect(250, &buffer))) {
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if (rec == NULL) {
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rec = new cRemoteRecording((const char*)buffer + 4);
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if (!rec->IsValid() || rec->Index() != Recording->Index())
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DELETENULL(rec);
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}
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if (buffer[3] == ' ') break;
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}
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if (!res && buffer.Left(3) != "550") {
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if (errno == 0)
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esyslog("ERROR: Streamdev: Couldn't fetch recordings from %s:%d",
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(const char*)RemoteIp(), RemotePort());
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if (rec != NULL) delete rec;
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return false;
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}
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if (rec == NULL || *rec != *Recording) {
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ERROR(tr("Recordings not in sync! Try again..."));
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return false;
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}
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if (!Command("DELR " + cTBString::Number(Recording->Index()), 250)) {
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ERROR(tr("Couldn't delete recording! Try again..."));
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return false;
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}
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return true;
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}
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bool cClientSocket::SuspendServer(void) {
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if (!CheckConnection()) return false;
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CMD_LOCK;
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if (!Command("SUSP", 220)) {
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if (errno == 0)
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esyslog("ERROR: Streamdev: Couldn't suspend server");
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return false;
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}
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return true;
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}
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bool cClientSocket::LoadTimers(cRemoteTimers &Timers) {
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cTBString buffer;
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bool res;
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if (!CheckConnection()) return false;
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CMD_LOCK;
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if (!Command("LSTT"))
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return false;
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while ((res = Expect(250, &buffer))) {
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cRemoteTimer *timer = new cRemoteTimer((const char*)buffer + 4);
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Dprintf("timer valid: %d\n", timer->IsValid());
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if (timer->IsValid())
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Timers.Add(timer);
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if (buffer[3] == ' ') break;
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}
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if (!res && buffer.Left(3) != "550") {
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if (errno == 0)
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esyslog("ERROR: Streamdev: Couldn't fetch recordings from %s:%d",
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(const char*)RemoteIp(), RemotePort());
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return false;
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}
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return res;
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}
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bool cClientSocket::SaveTimer(cRemoteTimer *Old, cRemoteTimer &New) {
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cTBString buffer;
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if (!CheckConnection()) return false;
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CMD_LOCK;
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if (New.Index() == -1) { // New timer
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if (!Command((cTBString)"NEWT " + New.ToText(), 250)) {
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ERROR(tr("Couldn't save timer! Try again..."));
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return false;
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}
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} else { // Modified timer
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if (!Command("LSTT " + cTBString::Number(New.Index())))
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return false;
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if (!Expect(250, &buffer)) {
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if (errno == 0)
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ERROR(tr("Timers not in sync! Try again..."));
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else
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ERROR(tr("Server error! Try again..."));
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return false;
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}
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cRemoteTimer oldstate((const char*)buffer + 4);
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if (oldstate != *Old) {
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/*Dprintf("old timer: %d,%d,%d,%d,%d,%d,%s,%d,%s,%d\n", oldstate.m_Index,
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oldstate.m_Active,oldstate.m_Day,oldstate.m_Start,oldstate.m_StartTime,oldstate.m_Priority,oldstate.m_File,oldstate.m_FirstDay,(const char*)oldstate.m_Summary,oldstate.m_Channel->Number());
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Dprintf("new timer: %d,%d,%d,%d,%d,%d,%s,%d,%s,%d\n", Old->m_Index,
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Old->m_Active,Old->m_Day,Old->m_Start,Old->m_StartTime,Old->m_Priority,Old->m_File,Old->m_FirstDay,(const char*)Old->m_Summary,Old->m_Channel->Number());*/
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ERROR(tr("Timers not in sync! Try again..."));
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return false;
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}
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if (!Command("MODT " + cTBString::Number(New.Index()) + " "
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+ New.ToText(), 250)) {
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ERROR(tr("Couldn't save timer! Try again..."));
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return false;
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}
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}
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return true;
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}
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bool cClientSocket::DeleteTimer(cRemoteTimer *Timer) {
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cTBString buffer;
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if (!CheckConnection())
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return false;
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CMD_LOCK;
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if (!Command("LSTT " + cTBString::Number(Timer->Index())))
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return false;
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if (!Expect(250, &buffer)) {
|
|
if (errno == 0)
|
|
ERROR(tr("Timers not in sync! Try again..."));
|
|
else
|
|
ERROR(tr("Server error! Try again..."));
|
|
return false;
|
|
}
|
|
|
|
cRemoteTimer oldstate((const char*)buffer + 4);
|
|
|
|
if (oldstate != *Timer) {
|
|
ERROR(tr("Timers not in sync! Try again..."));
|
|
return false;
|
|
}
|
|
|
|
if (!Command("DELT " + cTBString::Number(Timer->Index()), 250)) {
|
|
ERROR(tr("Couldn't delete timer! Try again..."));
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|