2 files changed, 174 insertions, 0 deletions

diff --git a/noncore/tools/remote/lirchandler.cpp b/noncore/tools/remote/lirchandler.cpp
index ec1e275..6022573 100644
--- a/noncore/tools/remote/lirchandler.cpp
+++ b/noncore/tools/remote/lirchandler.cpp
@@ -1,293 +1,459 @@
 /*
 Opie-Remote.  emulates remote controls on an iPaq (and maybe a Zaurus) in Opie.
 Copyright (C) 2007 Paul Eggleton & Thomas Stephens
 
 This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public
 License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later
 version.
 
 This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the
 implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
 Public License for more details.
 
 You should have received a copy of the GNU General Public License along with this program; if not, write to the Free
 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */
 
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
 #include <sys/socket.h>
 #include <sys/types.h>
 #include <unistd.h>
 #include <errno.h>
 
 #include <qstring.h>
 #include <qmessagebox.h>
 #include <qobject.h>
+#include <qtextstream.h>
 #include <opie2/oprocess.h>
 #include <qpe/qcopenvelope_qws.h>
 
 #include "lirchandler.h"
 
 #define PACKET_SIZE 256
 #define TIMEOUT 3
 #define LIRCD_SOCKET "/dev/lircd"
 #define LIRCD_SERVICECMD "/etc/init.d/lircd"
+#define LIRCD_CONF "/etc/lircd.conf"
 
 using namespace Opie::Core;
 
 LircHandler::LircHandler(void)
 {
         fd = 0;
         addr.sun_family=AF_UNIX;
         strcpy(addr.sun_path, LIRCD_SOCKET);
 }
 
 bool LircHandler::connectLirc(void)
 {
+        if(!checkLircdConfValid(false))
+                return false;
+        
         fd = socket(AF_UNIX, SOCK_STREAM, 0);
         if(fd == -1)
         {
                 QMessageBox mb(QObject::tr("Error"),
                                                                                         QObject::tr("Unable to create socket"),
                                                                                         QMessageBox::Critical,
                                                                                         QMessageBox::Ok,
                                                                                         QMessageBox::NoButton,
                                                                                         QMessageBox::NoButton);
                 mb.exec();
                 perror("LircHandler::connectLirc");
                 return false;
         }
         
         if(::connect(fd,(struct sockaddr *) &addr, sizeof(addr) ) == -1)
         {
                 QMessageBox mb(QObject::tr("Error"),
                                                                                         QObject::tr("Could not connect to lircd"),
                                                                                         QMessageBox::Critical,
                                                                                         QMessageBox::Ok,
                                                                                         QMessageBox::NoButton,
                                                                                         QMessageBox::NoButton);
                 mb.exec();
                 perror("LircHandler::connectLirc");
                 return false;
         }
         
         return true;
 }
 
 //this function was ripped for rc.c in xrc, it is available here: http://www.lirc.org/software.html
 const char *LircHandler::readPacket()
 {
         static char buffer[PACKET_SIZE+1]="";
         char *end;
         static int ptr=0;
         ssize_t ret;
         int timeout = 0;
 
         if(ptr>0)
         {
                 memmove(buffer,buffer+ptr,strlen(buffer+ptr)+1);
                 ptr=strlen(buffer);
                 end=strchr(buffer,'\n');
         }
         else
         {
                 end=NULL;
         }
         alarm(TIMEOUT);
         while(end==NULL)
         {
                 if(PACKET_SIZE<=ptr)
                 {
                         fprintf(stderr,"readPacket: bad packet\n");
                         ptr=0;
                         return(NULL);
                 }
                 ret=read(fd,buffer+ptr,PACKET_SIZE-ptr);
 
                 if(ret<=0 || timeout)
                 {
                         if(timeout)
                         {
                                 fprintf(stderr,"readPacket: timeout\n");
                         }
                         else
                         {
                                 alarm(0);
                         }
                         ptr=0;
                         return(NULL);
                 }
                 buffer[ptr+ret]=0;
                 ptr=strlen(buffer);
                 end=strchr(buffer,'\n');
         }
         alarm(0);
 
         end[0]=0;
         ptr=strlen(buffer)+1;
 //#       ifdef DEBUG
         //printf("buffer: -%s-\n",buffer);
 //#       endif
         return(buffer);
 }
 
 QStringList LircHandler::getRemotes(void)
 {
         const char write_buffer[] = "LIST\n";
         const char *readbuffer;
         int i, numlines;
         QStringList list;
         
         if(connectLirc()) {
                 write(fd, write_buffer, strlen(write_buffer) );
         
                 for(i=0; i<5; i++)
                 {
                         readbuffer = readPacket();
                 }
         
                 numlines = atoi(readbuffer);
         
                 for(i=0; i<numlines; i++)
                 {
                         list+=readPacket();
                 }
         
                 if(strcasecmp(readPacket(), "END") != 0)
                 {
                         QMessageBox mb(QObject::tr("Error"),
                                                                                                 QObject::tr("Bad packet while communicating with lircd"),
                                                                                                 QMessageBox::Critical,
                                                                                                 QMessageBox::Ok,
                                                                                                 QMessageBox::NoButton,
                                                                                                 QMessageBox::NoButton);
                         mb.exec();
                         perror("LircHandler::getRemotes");
                         return NULL;
                 }
         
                 ::close(fd);
         }
         
         return list;
 }
 
 QStringList LircHandler::getButtons(const char *remoteName)
 {
         QString write_buffer = "LIST ";
         const char *readbuffer;
         int i, j, numlines;
         QStringList list;
         QString string;
 
         write_buffer += remoteName;
         write_buffer += '\n';
 
         if(connectLirc()) {
                 write(fd, write_buffer.latin1(), strlen(write_buffer) );
         
                 for(i=0; i<5; i++)
                 {
                         readbuffer = readPacket();
                 }
         
                 numlines = atoi(readbuffer);
         
                 for(i=0; i<numlines; i++)
                 {
                         list+=readPacket();
                         for(j=0; j<list[i].length(); j++)
                         {
                                 if(list[i][j] == ' ')
                                         break;
                         }
                         list[i].remove(0, j+1);
                 }
 
                 if(strcasecmp(readPacket(), "END") != 0)
                 {
                         QMessageBox mb(QObject::tr("Error"),
                                                                                                 QObject::tr("Bad packet while communicating with lircd"),
                                                                                                 QMessageBox::Critical,
                                                                                                 QMessageBox::Ok,
                                                                                                 QMessageBox::NoButton,
                                                                                                 QMessageBox::NoButton);
                         mb.exec();
                         perror("LircHandler::getRemotes");
                         return NULL;
                 }
                 
                 ::close(fd);
         }
                 
         return list;
 }
 
 int LircHandler::sendIR(const char *lircaction)
 {
         const char *read_buffer;
         bool done=false;
 
         if(connectLirc()) {
                 printf("fd2: %d\n", fd);
                 printf("%s", lircaction);
         
                 printf("1\n");
                 printf("%d\n", write(fd, lircaction, strlen(lircaction) ) );
                 printf("2\n");
                 while(!done)
                 {
                         read_buffer=readPacket();
                         printf("%s\n", read_buffer);
                         if(strcasecmp(read_buffer, "END") == 0)
                         {
                                 printf("done reading packet\n");
                                 done=true;
                         }
                 }
                 ::close(fd);
                 return 1;
         }
         else
                 return 0;
 }
 
 bool LircHandler::startLircd(void)
 {
         return (system(LIRCD_SERVICECMD " start") == 0);
 }
 
 bool LircHandler::stopLircd(void)
 {
         return (system(LIRCD_SERVICECMD " stop") == 0);
 }
 
 bool LircHandler::isLircdRunning(void)
 {
         return (OProcess::processPID("lircd") != 0);
 }
 
+void LircHandler::reloadLircdConf(void)
+{
+        int pid = OProcess::processPID("lircd");
+        if(pid > -1)
+                kill(pid, SIGHUP);
+        else
+                startLircd();
+}
+
 bool LircHandler::setupModules(void)
 {
         // Remove IrDA modules which get in the way
         system("rmmod ircomm-tty ircomm");
         // Load LIRC device driver
         system("modprobe lirc_sir");
         return true;
 }
 
 bool LircHandler::cleanupModules(void)
 {
         // Unload LIRC device driver
         system("rmmod lirc_sir");
         // Load IrDA drivers back in
         system("modprobe ircomm-tty");
         return true;
 }
 
 void LircHandler::disableIrDA(void)
 {
         QCopEnvelope e("QPE/IrDaApplet", "disableIrda()");
 }
+
+void LircHandler::mergeRemoteConfig(const QString &newconfig)
+{
+        QStringList contents;
+        QStringList newcontents;
+        QFile conf(LIRCD_CONF);
+        QFile newconf(newconfig);
+        
+        readFromFile(conf, contents);
+        readFromFile(newconf, newcontents);
+        contents += newcontents;
+        
+        writeToFile(conf, contents);
+}
+
+void LircHandler::removeRemote(const QString &remotetodelete)
+{
+        QStringList contents;
+        QFile conf(LIRCD_CONF);
+        bool found = false;
+        bool inremote = false;
+        QString remotename("");
+        int lineidx = 0;
+        int startidx = 0;
+        int lastendidx = 0;
+        
+        readFromFile(conf, contents);
+        
+        for (QStringList::Iterator it = contents.begin(); it != contents.end(); ++it ) {
+                QString line = (*it).stripWhiteSpace();
+                if(line == "begin remote") {
+                        startidx = lastendidx;
+                        inremote = true;
+                }
+                else if(line == "end remote") {
+                        lastendidx = lineidx + 1;
+                        if(remotename == remotetodelete) {
+                                found = true;
+                                break;
+                        }
+                        inremote = false;
+                }
+                else if(inremote && line.left(4) == "name") {
+                        remotename = line.mid(4).stripWhiteSpace();
+                }
+                lineidx++;
+        }
+        
+        if(found) {
+                // Remove the remote and any preceding lines (most likely associated comments)
+                int linecount = lastendidx - startidx; 
+                QStringList::Iterator it = contents.at(startidx);
+                for (int i = 0; i < linecount; i++ ) {
+                        it = contents.remove(it);
+                }
+                
+                // Check if there is at least one remote still defined
+                found = false;
+                for (it = contents.begin(); it != contents.end(); ++it ) {
+                        QString line = (*it).stripWhiteSpace();
+                        if(line == "begin remote") {
+                                found = true;
+                                break;
+                        }
+                }
+                
+                if(found)
+                        writeToFile(conf, contents);
+                else
+                        conf.remove();
+        }
+}
+
+bool LircHandler::checkRemoteExists(const QString &remote)
+{
+        QStringList contents;
+        QFile conf(LIRCD_CONF);
+        bool inremote = false;
+        
+        readFromFile(conf, contents);
+        
+        for (QStringList::Iterator it = contents.begin(); it != contents.end(); ++it ) {
+                QString line = (*it).stripWhiteSpace();
+                if(line == "begin remote") {
+                        inremote = true;
+                }
+                else if(line == "end remote") {
+                        inremote = false;
+                }
+                else if(inremote && line.left(4) == "name") {
+                        QString rname = line.mid(4).stripWhiteSpace();
+                        if(rname == remote)
+                                return true;
+                }
+        }
+        return false;
+}
+
+bool LircHandler::checkLircdConfValid(bool silent)
+{
+        QStringList contents;
+        QFile conf(LIRCD_CONF);
+        bool inremote = false;
+        
+        if(conf.exists()) {
+                readFromFile(conf, contents);
+                
+                for (QStringList::Iterator it = contents.begin(); it != contents.end(); ++it ) {
+                        QString line = (*it).stripWhiteSpace();
+                        if(line == "begin remote") {
+                                inremote = true;
+                        }
+                        else if(line == "end remote") {
+                                if(inremote)
+                                        return true;
+                        }
+                }
+        }
+        
+        if(!silent) {
+                QMessageBox::information(NULL, QObject::tr("No remote"),
+                                QObject::tr("No remotes have been learned.\nPlease go to the Learn tab\nand learn a remote."),
+                                QMessageBox::Ok, QMessageBox::NoButton);
+        }
+        
+        return false;
+}
+
+bool LircHandler::readFromFile(QFile &file, QStringList &strlist) 
+{
+        if(file.open(IO_ReadOnly)) {
+                QTextStream in(&file);
+
+                strlist = QStringList::split('\n', in.read(), true);
+                file.close();
+                if(strlist.count() > 0)
+                        strlist.remove(strlist.at(strlist.count() - 1));  // remove extra blank line
+        }
+        return true;
+}
+
+bool LircHandler::writeToFile(QFile &file, QStringList &strlist) 
+{
+        if(file.open(IO_WriteOnly | IO_Truncate)) {
+                QTextStream out(&file);
+                for (QStringList::Iterator it = strlist.begin(); it != strlist.end(); ++it ) {
+                        out << (*it) << "\n";
+                }
+                file.close();
+        }
+        return true;
+}
diff --git a/noncore/tools/remote/lirchandler.h b/noncore/tools/remote/lirchandler.h
index 4e56b6b..5ba14b7 100644
--- a/noncore/tools/remote/lirchandler.h
+++ b/noncore/tools/remote/lirchandler.h
@@ -1,43 +1,51 @@
 /*
 Opie-Remote.  emulates remote controls on an iPaq (and maybe a Zaurus) in Opie.
 Copyright (C) 2007 Paul Eggleton & Thomas Stephens
 
 This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public
 License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later
 version.
 
 This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the
 implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
 Public License for more details.
 
 You should have received a copy of the GNU General Public License along with this program; if not, write to the Free
 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */
 
 #ifndef LIRCHANDLER_H
 #define LIRCHANDLER_H
 
 #include <sys/un.h>
+#include <qfile.h>
 
 class LircHandler
 {
 private:
         bool connectLirc(void);
         const char *readPacket();
+        bool readFromFile(QFile &file, QStringList &strlist);
+        bool writeToFile(QFile &file, QStringList &strlist);
         
         struct sockaddr_un addr;
         int fd;
 public:
         LircHandler(void);
         QStringList getRemotes(void);
         QStringList getButtons(const char *remoteName);
         int sendIR(const char *lircaction);
         bool startLircd(void);
         bool stopLircd(void);
         bool isLircdRunning(void);
+        void reloadLircdConf(void);
         bool setupModules(void);
         bool cleanupModules(void);
         void disableIrDA(void);
+        void mergeRemoteConfig(const QString &newconfig);
+        void removeRemote(const QString &remotetodelete);
+        bool checkRemoteExists(const QString &remote);
+        bool checkLircdConfValid(bool silent);
 };
 
 #endif