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tools.cpp
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#include "tools.h"
#include <vdr/videodir.h>
using namespace std;
// --- Settings ----------------------------------------------------------------
bool Settings::SetPort(std::string v)
{
int p = StringExtension::strtoi(v);
if ( p > 1024 && p <= 65535 ) {
port = p;
esyslog("restfulapi: Port has been set to %i!", port);
return true;
}
return false;
}
bool Settings::SetIp(std::string v)
{
vector<string> parts = StringExtension::split(v, ".");
if ( parts.size() != 4 ) {
return false;
}
for (int i=0;i<(int)parts.size();i++) {
int val = StringExtension::strtoi(parts[i]);
if ( val < 0 || val > 255 ) {
return false;
}
}
ip = v;
esyslog("restfulapi: Ip has been set to %s!", ip.c_str());
return true;
}
bool Settings::SetEpgImageDirectory(std::string v)
{
struct stat stat_info;
if ( stat(v.c_str(), &stat_info) == 0) {
if (v[v.length()-1] == '/')
epgimage_dir = v.substr(0, v.length()-1);
else
epgimage_dir = v;
esyslog("restfulapi: The EPG-Images will be loaded from %s!", epgimage_dir.c_str());
return true;
}
return false;
}
bool Settings::SetChannelLogoDirectory(std::string v)
{
struct stat stat_info;
if ( stat(v.c_str(), &stat_info) == 0) {
if (v[v.length()-1] == '/')
channellogo_dir = v.substr(0, v.length()-1);
else
channellogo_dir = v;
esyslog("restfulapi: The Channel-Logos will be loaded from %s!", channellogo_dir.c_str());
return true;
}
return false;
}
bool Settings::SetHeaders(std::string v)
{
if ( v == "false" ) {
activateHeaders = false;
} else {
activateHeaders = true;
}
return true;
}
Settings* Settings::get()
{
static Settings settings;
return &settings;
}
void Settings::initDefault()
{
SetPort((string)"8002");
SetIp((string)"0.0.0.0");
SetEpgImageDirectory((string)"/var/cache/vdr/epgimages");
SetChannelLogoDirectory((string)"/usr/share/vdr/channel-logos");
SetHeaders((string)"true");
}
// --- HtmlHeader --------------------------------------------------------------
void HtmlHeader::ToStream(StreamExtension* se)
{
se->write("<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
se->write("<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\n");
se->write("<html xml:lang=\"en\" lang=\"en\" xmlns=\"http://www.w3.org/1999/xhtml\">\n");
se->write("<head>\n");
se->write("<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\" />\n");
// WebApp support
se->write("<meta name=\"apple-mobile-web-app-capable\" content=\"yes\" />\n");
se->write("<meta name=\"apple-mobile-web-app-status-bar-style\" content=\"default\" />\n");
se->write("<meta name=\"viewport\" content=\"width=device-width\" id=\"viewport\" />\n");
for (int i=0;i<(int)_metatags.size();i++)
{
se->write(_metatags[i].c_str());
se->write("\n");
}
se->write("<title>");
se->write(_title.c_str());
se->write("</title>\n");
se->write("<style type=\"text/css\">\n");
for (int i=0;i<(int)_stylesheets.size();i++)
{
se->writeBinary(_stylesheets[i]);
se->write("\n");
}
se->write("</style>\n");
se->write("<script type=\"text/javascript\">\n//<![CDATA[\n\n");
for (int i=0;i<(int)_scripts.size();i++)
{
se->writeBinary(_scripts[i]);
}
se->write("\n//]]>\n</script>\n");
if ( _onload.size() == 0 ) {
se->write("</head><body>\n");
} else {
se->write("<body onload=\"");
//f.e. javascript:bootstrap();
se->write(_onload.c_str());
se->write("\">\n");
}
}
// --- StreamExtension ---------------------------------------------------------
StreamExtension::StreamExtension(std::ostream *out)
{
_out = out;
}
std::ostream* StreamExtension::getBasicStream()
{
return _out;
}
void StreamExtension::write(const char* str)
{
std::string data = (std::string)str;
_out->write(str, data.length());
}
void StreamExtension::writeHtmlHeader(std::string title)
{
write("<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
write("<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Transitional//EN\" \"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd\">\n");
write("<html xml:lang=\"en\" lang=\"en\" xmlns=\"http://www.w3.org/1999/xhtml\">\n");
write("<head>\n");
write("<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\" />\n");
// WebApp support
write("<meta name=\"apple-mobile-web-app-capable\" content=\"yes\" />\n");
write("<meta name=\"apple-mobile-web-app-status-bar-style\" content=\"default\" />\n");
write("<meta name=\"viewport\" content=\"width=device-width\" id=\"viewport\" />\n");
write("<title>VDR-Plugin-Restfulapi: ");
if ( title.length() > 0 ) write(title.c_str());
write("</title>");
write("</head>\n<body>\n");
}
void StreamExtension::writeXmlHeader()
{
write("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?>\n");
}
bool StreamExtension::writeBinary(std::string path)
{
ifstream* in = new ifstream(path.c_str(), ios::in | ios::binary | ios::ate);
bool result = false;
if ( in->is_open() ) {
int size = in->tellg();
char* memory = new char[size];
in->seekg(0, ios::beg);
in->read(memory, size);
_out->write(memory, size);
delete[] memory;
result = true;
}
in->close();
delete in;
return result;
}
// --- FileNotifier -----------------------------------------------------------
FileNotifier::~FileNotifier()
{
if ( active == true ) {
Stop();
}
}
void FileNotifier::Initialize(int mode)
{
_mode = mode;
string dir;
if ( _mode == FileNotifier::EVENTS) {
dir = Settings::get()->EpgImageDirectory().c_str();
} else {
dir = Settings::get()->ChannelLogoDirectory().c_str();
}
_filedescriptor = inotify_init();
_wd = -1;
if ( dir.length() == 0 ) {
esyslog("restfulapi: Initializing inotify for epgimages or channellogos failed! (Check restfulapi-settings!)");
_wd = -1;
} else {
_wd = inotify_add_watch( _filedescriptor, dir.c_str(), IN_CREATE | IN_DELETE );
if ( _wd < 0 )
esyslog("restfulapi: Initializing inotify for epgimages failed!");
else
esyslog("restfulapi: Initializing inotify for %s finished.", dir.c_str());
}
if (_wd >= 0) {
active = true;
Start();
}
}
void FileNotifier::Action(void)
{
int length, i;
char buffer[BUF_LEN];
while(active) {
i = 0;
struct pollfd pfd[1];
pfd[0].fd = _filedescriptor;
pfd[0].events = POLLIN;
if ( poll(pfd, 1, 500) > 0 ) {
length = read( _filedescriptor, buffer, BUF_LEN );
if ( length > 0 ) {
while ( i < length ) {
struct inotify_event *event = ( struct inotify_event * ) &buffer[ i ];
if ( event->len > 0 && !(event->mask & IN_ISDIR) ) {
if (event->mask & IN_CREATE) {
//esyslog("restfulapi: inotify: found new image: %s", event->name);
if ( _mode == FileNotifier::EVENTS )
FileCaches::get()->addEventImage((std::string)event->name);
else
FileCaches::get()->addChannelLogo((std::string)event->name);
}
if (event->mask & IN_DELETE) {
//esyslog("restfulapi: inotify: image %s has been removed", event->name);
if ( _mode == FileNotifier::EVENTS )
FileCaches::get()->removeEventImage((std::string)event->name);
else
FileCaches::get()->removeChannelLogo((std::string)event->name);
}
i += EVENT_SIZE + event->len;
}
}
}
}
}
esyslog("restfulapi: Stopped watching directory!");
}
void FileNotifier::Stop()
{
if ( active != false ) {
active = false;
Cancel(0.1);
( void ) inotify_rm_watch( _filedescriptor, _wd );
( void ) close( _filedescriptor );
}
}
// --- FileCaches -------------------------------------------------------------
FileCaches* FileCaches::get()
{
static FileCaches instance;
return &instance;
}
void FileCaches::cacheEventImages()
{
string imageFolder = Settings::get()->EpgImageDirectory();
string folderWildcard = imageFolder + (string)"/*";
VdrExtension::scanForFiles(folderWildcard, eventImages);
}
void FileCaches::cacheChannelLogos()
{
string imageFolder = Settings::get()->ChannelLogoDirectory();
string folderWildcard = imageFolder + (string)"/*";
VdrExtension::scanForFiles(folderWildcard, channelLogos);
}
void FileCaches::searchEventImages(int eventid, std::vector< std::string >& files)
{
cxxtools::Regex regex( (string)"^" + StringExtension::itostr(eventid) + (string)"(_[0-9]+)?.[a-z]{3,4}$" );
for ( int i=0; i < (int)eventImages.size(); i++ ) {
if ( regex.match(eventImages[i]) ) {
files.push_back(eventImages[i]);
}
}
}
std::string FileCaches::searchChannelLogo(cChannel *channel)
{
std::string cname = (std::string)channel->Name();
for ( int i=0; i < (int)channelLogos.size(); i++ ) {
string name = channelLogos[i];
int delim = name.find_last_of(".");
if ( delim != -1 ) { name = name.substr(0, delim); }
if ( name == cname ) {
return channelLogos[i];
}
}
return "";
}
void FileCaches::addEventImage(string file)
{
eventImages.push_back(file);
}
void FileCaches::addChannelLogo(string file)
{
channelLogos.push_back(file);
}
void FileCaches::removeEventImage(string file)
{
for (size_t i = 0; i < eventImages.size(); i++) {
if ( eventImages[i] == file ) {
eventImages[i] = "";
break;
}
}
}
void FileCaches::removeChannelLogo(string file)
{
for (size_t i = 0; i < channelLogos.size(); i++) {
if ( channelLogos[i] == file ) {
eventImages[i] = "";
break;
}
}
}
// --- VdrExtension -----------------------------------------------------------
cChannel* VdrExtension::getChannel(int number)
{
if( number == -1 || number >= Channels.Count() ) { return NULL; }
cChannel* result = NULL;
int counter = 1;
for (cChannel *channel = Channels.First(); channel; channel = Channels.Next(channel))
{
if (!channel->GroupSep()) {
if (counter == number)
{
result = channel;
break;
}
counter++;
}
}
return result;
}
cChannel* VdrExtension::getChannel(string id)
{
if ( id.length() == 0 ) return NULL;
for (cChannel* channel = Channels.First(); channel; channel= Channels.Next(channel))
{
if ( id == (string)channel->GetChannelID().ToString() ) {
return channel;
}
}
return NULL;
}
cTimer* VdrExtension::getTimer(string id)
{
cTimer* timer;
int tc = Timers.Count();
for (int i=0;i<tc;i++) {
timer = Timers.Get(i);
if ( VdrExtension::getTimerID(timer) == id ) {
return timer;
}
}
return NULL;
}
string VdrExtension::getTimerID(cTimer* timer)
{
ostringstream str;
str << (const char*)timer->Channel()->GetChannelID().ToString() << ":" << timer->WeekDays() << ":"
<< timer->Day() << ":"
<< timer->Start() << ":" << timer->Stop();
return str.str();
}
int VdrExtension::scanForFiles(const std::string wildcardpath, std::vector< std::string >& files)
{
int found = 0;
glob_t globbuf;
globbuf.gl_offs = 0;
if ( wildcardpath.empty() == false && glob(wildcardpath.c_str(), GLOB_DOOFFS, NULL, &globbuf) == 0) {
for (size_t i = 0; i < globbuf.gl_pathc; i++) {
string file(globbuf.gl_pathv[i]);
size_t delimPos = file.find_last_of('/');
files.push_back(file.substr(delimPos+1));
found++;
}
globfree(&globbuf);
}
esyslog("restfulapi: found %i files in %s.", found, wildcardpath.c_str());
return found;
}
bool VdrExtension::doesFileExistInFolder(string wildcardpath, string filename)
{
glob_t globbuf;
globbuf.gl_offs = 0;
if ( wildcardpath.empty() == false && glob(wildcardpath.c_str(), GLOB_DOOFFS, NULL, &globbuf) == 0) {
for (size_t i = 0; i < globbuf.gl_pathc; i++) {
string file(globbuf.gl_pathv[i]);
size_t delimPos = file.find_last_of('/');
if (file.substr(delimPos+1) == filename) {
globfree(&globbuf);
return true;
}
}
globfree(&globbuf);
}
return false;
}
bool VdrExtension::IsRadio(cChannel* channel)
{
if ((channel->Vpid() == 0 && channel->Apid(0) != 0) || channel->Vpid() == 1 ) {
return true;
}
return false;
}
bool VdrExtension::IsRecording(cRecording* recording)
{
cTimer* timer = NULL;
for (int i=0;i<Timers.Count();i++)
{
timer = Timers.Get(i);
if (string(timer->File()).compare(recording->Name())) {
return true;
}
}
return false;
}
cTimer* VdrExtension::TimerExists(cEvent* event)
{
for(int i=0;i<Timers.Count();i++) {
cTimer* timer = Timers.Get(i);
if ( timer->Event() != NULL && timer->Event()->EventID() == event->EventID() && strcmp(timer->Event()->ChannelID().ToString(), event->ChannelID().ToString()) == 0 ) {
return timer;
}
if ( strcmp(timer->Channel()->GetChannelID().ToString(), event->ChannelID().ToString()) == 0 ) {
int timer_start = (int)timer->Day() - ((int)timer->Day()) % 3600;
int timer_stop = timer_start;
timer_start += ((int)(timer->Start() / 100)) * 60 * 60;
timer_start += (timer->Start() % 100) * 60;
if ( timer->Stop() < timer->Start() ) timer_stop += 24 * 60 * 60;
timer_stop += ((int)(timer->Stop() / 100)) * 60 * 60;
timer_stop += (timer->Stop() % 100) * 60;
if ( timer_stop >= (int)event->EndTime() && timer_start <= (int)event->StartTime() ) {
return timer;
}
}
}
return NULL;
}
vector< cTimer* > VdrExtension::SortedTimers()
{
vector< cTimer* > timers;
for(int i=0;i<Timers.Count();i++)
{
timers.push_back(Timers.Get(i));
}
for(int i=0;i<(int)timers.size() - 1;i++)
{
bool changed = false;
for(int k=0;k<(int)timers.size() - i - 1;k++)
{
if (VdrExtension::CompareTimers(timers[k], timers[k+1]))
{
cTimer* swap = timers[k];
timers[k] = timers[k+1];
timers[k+1] = swap;
changed = true;
}
}
if(!changed) break;
}
return timers;
}
bool VdrExtension::CompareTimers(cTimer* timer1, cTimer* timer2)
{
int day1 = (int)timer1->Day() - ((int)timer1->Day() % 3600);
int day2 = (int)timer2->Day() - ((int)timer2->Day() % 3600);
if (day1 > day2) {
return true;
} else if ( day1 < day2) {
return false;
} else {
if (timer1->StartTime() > timer2->StartTime()) {
return true;
} else if (timer1->StartTime() < timer2->StartTime()) {
return false;
}
}
if ( ( (string)timer1->File() ).compare( (string)timer2->File() ) > 0 ) {
return true;
}
return false;
}
int VdrExtension::RecordingLengthInSeconds(cRecording* recording)
{
int nf = recording->NumFrames();
if (nf >= 0)
#if APIVERSNUM >= 10703
return int(((double)nf / recording->FramesPerSecond()));
#else
return int((double)nf / FRAMESPERSEC);
#endif
return -1;
}
cEvent* VdrExtension::GetEventById(tEventID eventID, cChannel* channel)
{
cSchedulesLock MutexLock;
const cSchedules *Schedules = cSchedules::Schedules(MutexLock);
if ( !Schedules ) return NULL;
for (cChannel *channel = Channels.First(); channel; channel = Channels.Next(channel)) {
const cSchedule *Schedule = Schedules->GetSchedule(channel->GetChannelID());
if (Schedule) {
cEvent* event = (cEvent*)Schedule->GetEvent(eventID);
if ( event != NULL && (channel == NULL || strcmp(channel->GetChannelID().ToString(), event->ChannelID().ToString()) == 0 ) ) return event;
}
}
return NULL;
}
string VdrExtension::getRelativeVideoPath(cRecording* recording)
{
string path = (string)recording->FileName();
string VIDEODIR(VideoDirectory);
return path.substr(VIDEODIR.length());
}
cEvent* VdrExtension::getCurrentEventOnChannel(cChannel* channel)
{
if ( channel == NULL ) return NULL;
cSchedulesLock MutexLock;
const cSchedules *Schedules = cSchedules::Schedules(MutexLock);
if ( ! Schedules ) { return NULL; }
const cSchedule *Schedule = Schedules->GetSchedule(channel->GetChannelID());
if ( !Schedule ) { return NULL; }
time_t now = time(NULL);
return (cEvent*)Schedule->GetEventAround(now);
}
string VdrExtension::getVideoDiskSpace()
{
int FreeMB, UsedMB;
int Percent = VideoDiskSpace(&FreeMB, &UsedMB);
ostringstream str;
str << FreeMB + UsedMB << "MB " << FreeMB << "MB " << Percent << "%";
return str.str();
}
// --- VdrMarks ---------------------------------------------------------------
VdrMarks* VdrMarks::get()
{
static VdrMarks vdrMarks;
return &vdrMarks;
}
string VdrMarks::cutComment(string str)
{
bool esc = false;
char c;
int counter = 0;
while ( counter < (int)str.length() ) {
c = str[counter];
switch(c) {
case '\\': if (!esc) esc = true; else esc = false;
break;
case ' ': if (!esc) return str.substr(0, counter);
break;
default: esc = false;
break;
}
counter++;
}
return str;
}
bool VdrMarks::validateMark(string mark)
{
static cxxtools::Regex regex("[0-9]{1,2}:[0-9]{2,2}:[0-9]{2,2}[.]{0,1}[0-9]{0,2}");
return regex.match(mark);
}
string VdrMarks::getPath(cRecording* recording)
{
string filename = recording->FileName();
return filename + "/marks";
}
bool VdrMarks::parseLine(std::vector<string >& marks, string line)
{
line = cutComment(line);
if ( validateMark(line) ) {
marks.push_back(line);
return true;
}
return false;
}
vector<string > VdrMarks::readMarks(cRecording* recording)
{
vector<string > marks;
string path = getPath(recording);
if ( path.length() == 0 ) {
return marks;
}
FILE* f = fopen(path.c_str(), "r");
if ( f != NULL ) {
ostringstream data;
char c;
while ( !feof(f) ) {
c = fgetc(f);
if ( c == '\n' ) {
parseLine(marks, data.str());
data.str(""); //.clear() is inherited from std::ios and does only clear the error state
} else {
if (!feof(f)) //don't add EOF-char to string
data << c;
}
}
parseLine(marks, data.str());
fclose(f);
}
return marks;
}
bool VdrMarks::saveMarks(cRecording* recording, std::vector< std::string > marks)
{
if (recording == NULL) {
return false;
}
for(int i=0;i<(int)marks.size();i++)
{
if ( !validateMark(marks[i]) ) {
return false;
}
}
string path = getPath(recording);
if ( path.length() == 0 ) {
return false;
}
deleteMarks(recording);
FILE* file = fopen(path.c_str(), "w");
if ( file != NULL ) {
for(int i=0;i<(int)marks.size();i++) {
for(int k=0;k<(int)marks[i].length();k++)
{
fputc( (int)marks[i][k], file );
}
fputc( (int)'\n', file );
}
fclose(file);
return true;
}
return false;
}
bool VdrMarks::deleteMarks(cRecording* recording)
{
string marksfile = getPath(recording);
if ( remove( marksfile.c_str() ) != 0 ) {
return false;
}
return true;
}
// --- StringExtension --------------------------------------------------------
string StringExtension::itostr(int i)
{
stringstream str;
str << i;
return str.str();
}
int StringExtension::strtoi(string str)
{
static cxxtools::Regex regex("[0-9]{1,}");
if(!regex.match(str)) return -LOWINT; // lowest possible integer
return atoi(str.c_str());
}
string StringExtension::replace(string const& text, string const& substring, string const& replacement)
{
std::string result = text;
std::string::size_type pos = 0;
while ( ( pos = result.find( substring, pos ) ) != std::string::npos ) {
result.replace( pos, substring.length(), replacement );
pos += replacement.length();
}
return result;
}
string StringExtension::encodeToXml(const string &str)
{
//source: http://www.mdawson.net/misc/xmlescape.php
ostringstream result;
for( string::const_iterator iter = str.begin(); iter!=str.end(); iter++ )
{
unsigned char c = (unsigned char)*iter;
// filter invalid bytes in xml
if (c < 0x20 && c != 0x09 && c != 0x0a && c != 0x0d)
continue;
switch( c )
{
case '&': result << "&"; break;
case '<': result << "<"; break;
case '>': result << ">"; break;
case '"': result << """; break;
case '\'': result << "'"; break;
default:
result << c;
}
}
string res = result.str();
try {
string converted;
utf8::replace_invalid(res.begin(), res.end(), back_inserter(converted));
return converted;
} catch(utf8::not_enough_room& e) {
return (string)"Invalid piece of text. (Fixing Unicode failed.)";
}
}
cxxtools::String StringExtension::encodeToJson(const string &str)
{
// http://en.wikipedia.org/wiki/UTF-8#Codepage_layout
ostringstream result;
for( string::const_iterator iter = str.begin(); iter!=str.end(); iter++ )
{
unsigned char c = (unsigned char)*iter;
if (c < 0x20)
continue;
else if (c == 0xc0 || c == 0xc1 || (c >= 0xf5 && c <= 0xff))
result << (0xc0 | (c >> 6)) << (0x80 | (c & 0x3f));
else
result << c;
}
string res = result.str();
static cxxtools::Utf8Codec utf8;
try {
string converted;
utf8::replace_invalid(res.begin(), res.end(), back_inserter(converted));
return utf8.decode(converted);
} catch(utf8::not_enough_room& e) {
return utf8.decode((string)"Invalid piece of text. (Fixing Unicode failed.)");
}
}
cxxtools::String StringExtension::UTF8Decode(string str)
{
static cxxtools::Utf8Codec utf8;
try {
string converted;
utf8::replace_invalid(str.begin(), str.end(), back_inserter(converted));
return utf8.decode(converted);
} catch (utf8::not_enough_room& e) {
return utf8.decode((string)"Invalid piece of text. (Fixing Unicode failed.)");
}
}
string StringExtension::toLowerCase(string str)
{
ostringstream res;
for (int i=0;i<(int)str.length();i++)
{
res << (char)tolower(str[i]);
}
return res.str();
}
string StringExtension::trim(string str)
{
int a = str.find_first_not_of(" \t");
int b = str.find_last_not_of(" \t");
if ( a == -1 ) a = 0;
if ( b == -1 ) b = str.length() - 1;
return str.substr(a, (b-a)+1);
}
vector<string > StringExtension::split(string str, string s)
{
vector< string > result;
if ( str.length() <= 1 ) return result;
int found = 0;
int previous = -1;
while((found = str.find_first_of(s.c_str(), found+1)) != -1 ) {
result.push_back(str.substr(previous+1, (found+(-previous-1))));
previous = found;
}
found++;
result.push_back(str.substr(previous+1));
return result;
}
string StringExtension::timeToString(time_t time)
{
struct tm *ltime = localtime(&time);
char buffer[26];
strftime(buffer, 26, "%H:%M", ltime);
return (std::string)buffer;
}
string StringExtension::dateToString(time_t time)
{
struct tm *ltime = localtime(&time);
ostringstream data;
data << StringExtension::addZeros((ltime->tm_year+1900), 4) << "-"
<< StringExtension::addZeros((ltime->tm_mon+1), 2) << "-"
<< StringExtension::addZeros((ltime->tm_mday), 2) << " "
<< StringExtension::addZeros((ltime->tm_hour), 2) << ":"
<< StringExtension::addZeros((ltime->tm_min), 2) << ":"
<< StringExtension::addZeros((ltime->tm_sec), 2);
return data.str();
}
string StringExtension::addZeros(int value, int digits)
{
string strValue = StringExtension::itostr(value);
if ( value < 0 ) return strValue;
while ( (int)strValue.length() < digits ) {
strValue = "0" + strValue;
}
return strValue;
}
// --- QueryHandler -----------------------------------------------------------
QueryHandler::QueryHandler(string service, cxxtools::http::Request& request)
{
_url = request.url();
_service = service;
_options.parse_url(request.qparams());
//workaround for current cxxtools which always appends ascii character #012 at the end? AFAIK!
string body = request.bodyStr().substr(0,request.bodyStr().length()-1);
bool found_json = false;
int i = 0;
while(!found_json && body.length() > (size_t)i) {
if (body[i] == '{') {
found_json = true;
} else if (body[i] != '\t' && body[i] != '\n' && body[i] != ' ') {
break;
}
i++;
}
if ( found_json ) {
jsonObject = jsonParser.Parse(body);
esyslog("restfulapi: JSON parsed successfully: %s", jsonObject == NULL ? "no" : "yes");
} else {
_body.parse_url(body);
jsonObject = NULL;
}
string params = _url.substr(_service.length());
parseRestParams(params);
_format = "";
if ( (int)_url.find(".xml") != -1 ) { _format = ".xml"; }
if ( (int)_url.find(".json") != -1 ) { _format = ".json"; }
if ( (int)_url.find(".html") != -1 ) { _format = ".html"; }
}
QueryHandler::~QueryHandler()
{
if (jsonObject != NULL) {
delete jsonObject;
}
}
void QueryHandler::parseRestParams(std::string params)
{
int start = -1;
for(int i=0;i<(int)params.length();i++)
{
if(params[i] == '/')
{
if(start == -1)
{
start = i;
} else {
string p = params.substr(start+1, (i-1)-(start));
_params.push_back(p);
start = i;
}
}
}
if(start != (int)params.length() - 1) {
_params.push_back(params.substr(start + 1));
}
}
string QueryHandler::getJsonString(string name)
{
if ( jsonObject == NULL ) return "";
JsonValue* jsonValue = jsonObject->GetItem(name);
if ( jsonValue == NULL ) return "";