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tdegraphics/kamera/kioslave/kamera.cpp

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/*
Copyright (C) 2001 The Kompany
2001-2003 Ilya Konstantinov <kde-devel@future.shiny.co.il>
2001-2007 Marcus Meissner <marcus@jet.franken.de>
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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include <stdlib.h>
#include <unistd.h>
#include <stdio.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <signal.h>
#include <errno.h>
#include <tqfile.h>
#include <tqtextstream.h>
#include <kdebug.h>
#include <kinstance.h>
#include <kstandarddirs.h>
#include <kconfig.h>
#include <ksimpleconfig.h>
#include <klocale.h>
#include <kprotocolinfo.h>
#include <kio/slaveconfig.h>
#include <config.h>
#include "kamera.h"
#define MAXIDLETIME 30 /* seconds */
#define tocstr(x) ((x).local8Bit())
using namespace KIO;
extern "C"
{
KDE_EXPORT int kdemain(int argc, char **argv);
static void frontendCameratqStatus(GPContext *context, const char *format, va_list args, void *data);
static unsigned int frontendProgressStart(
GPContext *context, float totalsize, const char *format,
va_list args, void *data
);
static void frontendProgressUpdate(
GPContext *context, unsigned int id, float current, void *data
);
}
int kdemain(int argc, char **argv)
{
KInstance instance("kio_kamera");
if(argc != 4) {
kdDebug(7123) << "Usage: kio_kamera protocol "
"domain-socket1 domain-socket2" << endl;
exit(-1);
}
KameraProtocol slave(argv[2], argv[3]);
slave.dispatchLoop();
return 0;
}
KameraProtocol::KameraProtocol(const TQCString &pool, const TQCString &app)
: SlaveBase("camera", pool, app),
m_camera(NULL)
{
// attempt to initialize libgphoto2 and chosen camera (requires locking)
// (will init m_camera, since the m_camera's configuration is empty)
m_camera = 0;
m_file = NULL;
m_config = new KSimpleConfig(KProtocolInfo::config("camera"));
m_context = gp_context_new();
actiondone = true;
cameraopen = false;
m_lockfile = locateLocal("tmp", "kamera");
idletime = 0;
}
// This handler is getting called every second. We use it to do the
// delayed close of the camera.
// Logic is:
// - No more requests in the queue (signaled by actiondone) AND
// - We are MAXIDLETIME seconds idle OR
// - Another slave wants to have access to the camera.
//
// The existance of a lockfile is used to signify "please give up camera".
//
void KameraProtocol::special(const TQByteArray&) {
kdDebug(7123) << "KameraProtocol::special() at " << getpid() << endl;
if (!actiondone && cameraopen) {
struct stat stbuf;
if ((-1!=::stat(m_lockfile.utf8(),&stbuf)) || (idletime++ >= MAXIDLETIME)) {
kdDebug(7123) << "KameraProtocol::special() closing camera." << endl;
closeCamera();
setTimeoutSpecialCommand(-1);
} else {
// continue to wait
setTimeoutSpecialCommand(1);
}
} else {
// We let it run until the slave gets no actions anymore.
setTimeoutSpecialCommand(1);
}
actiondone = false;
}
KameraProtocol::~KameraProtocol()
{
kdDebug(7123) << "KameraProtocol::~KameraProtocol()" << endl;
delete m_config;
if(m_camera) {
closeCamera();
gp_camera_free(m_camera);
m_camera = NULL;
}
}
// initializes the camera for usage - should be done before operations over the wire
bool KameraProtocol::openCamera(TQString &str) {
idletime = 0;
actiondone = true;
if (!m_camera) {
reparseConfiguration();
} else {
if (!cameraopen) {
int ret, tries = 15;
kdDebug(7123) << "KameraProtocol::openCamera at " << getpid() << endl;
while (tries--) {
ret = gp_camera_init(m_camera, m_context);
if ( (ret == GP_ERROR_IO_USB_CLAIM) ||
(ret == GP_ERROR_IO_LOCK)) {
// just create / touch if not there
int fd = ::open(m_lockfile.utf8(),O_CREAT|O_WRONLY,0600);
if (fd != -1) ::close(fd);
::sleep(1);
kdDebug(7123) << "openCamera at " << getpid() << "- busy, ret " << ret << ", trying again." << endl;
continue;
}
if (ret == GP_OK) break;
str = gp_result_as_string(ret);
return false;
}
::unlink(m_lockfile.utf8());
setTimeoutSpecialCommand(1);
kdDebug(7123) << "openCamera succeeded at " << getpid() << endl;
cameraopen = true;
}
}
return true;
}
// should be done after operations over the wire
void KameraProtocol::closeCamera(void)
{
int gpr;
if (!m_camera)
return;
kdDebug(7123) << "KameraProtocol::closeCamera at " << getpid() << endl;
if ((gpr=gp_camera_exit(m_camera,m_context))!=GP_OK) {
kdDebug(7123) << "closeCamera failed with " << gp_result_as_string(gpr) << endl;
}
// HACK: gp_camera_exit() in gp 2.0 does not close the port if there
// is no camera_exit function.
gp_port_close(m_camera->port);
cameraopen = false;
return;
}
static TQString fix_foldername(TQString ofolder) {
TQString folder = ofolder;
if (folder.length() > 1) {
while ((folder.length()>1) && (folder.right(1) == "/"))
folder = folder.left(folder.length()-1);
}
if (folder.length() == 0)
folder = "/";
return folder;
}
// The KIO slave "get" function (starts a download from the camera)
// The actual returning of the data is done in the frontend callback functions.
void KameraProtocol::get(const KURL &url)
{
kdDebug(7123) << "KameraProtocol::get(" << url.path() << ")" << endl;
CameraFileType fileType;
int gpr;
if (url.host().isEmpty()) {
error(KIO::ERR_DOES_NOT_EXIST, url.path());
return;
}
if(!openCamera()) {
error(KIO::ERR_DOES_NOT_EXIST, url.path());
return;
}
// fprintf(stderr,"get(%s)\n",url.path().latin1());
#define GPHOTO_TEXT_FILE(xx) \
if (!url.path().compare("/" #xx ".txt")) { \
CameraText xx; \
gpr = gp_camera_get_##xx(m_camera, &xx, m_context); \
if (gpr != GP_OK) { \
error(KIO::ERR_DOES_NOT_EXIST, url.path()); \
return; \
} \
TQByteArray chunkDataBuffer; \
chunkDataBuffer.setRawData(xx.text, strlen(xx.text)); \
data(chunkDataBuffer); \
processedSize(strlen(xx.text)); \
chunkDataBuffer.resetRawData(xx.text, strlen(xx.text)); \
finished(); \
return; \
}
GPHOTO_TEXT_FILE(about);
GPHOTO_TEXT_FILE(manual);
GPHOTO_TEXT_FILE(summary);
#undef GPHOTO_TEXT_FILE
// emit info message
infoMessage( i18n("Retrieving data from camera <b>%1</b>").tqarg(url.user()) );
// Note: There's no need to re-read directory for each get() anymore
gp_file_new(&m_file);
// emit the total size (we must do it before sending data to allow preview)
CameraFileInfo info;
gpr = gp_camera_file_get_info(m_camera, tocstr(fix_foldername(url.directory(false))), tocstr(url.fileName()), &info, m_context);
if (gpr != GP_OK) {
// fprintf(stderr,"Folder %s / File %s not found, gpr is %d\n",folder.latin1(), url.fileName().latin1(), gpr);
gp_file_unref(m_file);
if ((gpr == GP_ERROR_FILE_NOT_FOUND) || (gpr == GP_ERROR_DIRECTORY_NOT_FOUND))
error(KIO::ERR_DOES_NOT_EXIST, url.path());
else
error(KIO::ERR_UNKNOWN, gp_result_as_string(gpr));
return;
}
// at last, a proper API to determine whether a thumbnail was requested.
if(cameraSupportsPreview() && metaData("thumbnail") == "1") {
kdDebug(7123) << "get() retrieving the thumbnail" << endl;
fileType = GP_FILE_TYPE_PREVIEW;
if (info.preview.fields & GP_FILE_INFO_SIZE)
totalSize(info.preview.size);
if (info.preview.fields & GP_FILE_INFO_TYPE)
mimeType(info.preview.type);
} else {
kdDebug(7123) << "get() retrieving the full-scale photo" << endl;
fileType = GP_FILE_TYPE_NORMAL;
if (info.file.fields & GP_FILE_INFO_SIZE)
totalSize(info.file.size);
if (info.preview.fields & GP_FILE_INFO_TYPE)
mimeType(info.file.type);
}
// fetch the data
m_fileSize = 0;
gpr = gp_camera_file_get(m_camera, tocstr(fix_foldername(url.directory(false))), tocstr(url.fileName()), fileType, m_file, m_context);
if ( (gpr == GP_ERROR_NOT_SUPPORTED) &&
(fileType == GP_FILE_TYPE_PREVIEW)
) {
// If we get here, the file info command information
// will either not be used, or still valid.
fileType = GP_FILE_TYPE_NORMAL;
gpr = gp_camera_file_get(m_camera, tocstr(fix_foldername(url.directory(false))), tocstr(url.fileName()), fileType, m_file, m_context);
}
switch(gpr) {
case GP_OK:
break;
case GP_ERROR_FILE_NOT_FOUND:
case GP_ERROR_DIRECTORY_NOT_FOUND:
gp_file_unref(m_file);
m_file = NULL;
error(KIO::ERR_DOES_NOT_EXIST, url.fileName());
return ;
default:
gp_file_unref(m_file);
m_file = NULL;
error(KIO::ERR_UNKNOWN, gp_result_as_string(gpr));
return;
}
// emit the mimetype
// NOTE: we must first get the file, so that CameraFile->name would be set
const char *fileMimeType;
gp_file_get_mime_type(m_file, &fileMimeType);
mimeType(fileMimeType);
// We need to pass left over data here. Some camera drivers do not
// implement progress callbacks!
const char *fileData;
long unsigned int fileSize;
// This merely returns us a pointer to gphoto's internal data
// buffer -- there's no expensive memcpy
gpr = gp_file_get_data_and_size(m_file, &fileData, &fileSize);
if (gpr != GP_OK) {
kdDebug(7123) << "get():: get_data_and_size failed." << endl;
gp_file_free(m_file);
m_file = NULL;
error(KIO::ERR_UNKNOWN, gp_result_as_string(gpr));
return;
}
// make sure we're not sending zero-sized chunks (=EOF)
// also make sure we send only if the progress did not send the data
// already.
if ((fileSize > 0) && (fileSize - m_fileSize)>0) {
unsigned long written = 0;
TQByteArray chunkDataBuffer;
// We need to split it up here. Someone considered it funny
// to discard any data() larger than 16MB.
//
// So nearly any Movie will just fail....
while (written < fileSize-m_fileSize) {
unsigned long towrite = 1024*1024; // 1MB
if (towrite > fileSize-m_fileSize-written)
towrite = fileSize-m_fileSize-written;
chunkDataBuffer.setRawData(fileData + m_fileSize + written, towrite);
processedSize(m_fileSize + written + towrite);
data(chunkDataBuffer);
chunkDataBuffer.resetRawData(fileData + m_fileSize + written, towrite);
written += towrite;
}
m_fileSize = fileSize;
setFileSize(fileSize);
}
finished();
gp_file_unref(m_file); /* just unref, might be stored in fs */
m_file = NULL;
}
// The KIO slave "stat" function.
void KameraProtocol::stat(const KURL &url)
{
kdDebug(7123) << "stat(\"" << url.path() << "\")" << endl;
if (url.path() == "") {
KURL rooturl(url);
kdDebug(7123) << "redirecting to /" << endl;
rooturl.setPath("/");
rooturl.setHost(url.host());
rooturl.setUser(url.user());
redirection(rooturl);
finished();
return;
}
if(url.path() == "/")
statRoot();
else
statRegular(url);
}
// Implements stat("/") -- which always returns the same value.
void KameraProtocol::statRoot(void)
{
UDSEntry entry;
UDSAtom atom;
atom.m_uds = UDS_NAME;
atom.m_str = "/";
entry.append(atom);
atom.m_uds = UDS_FILE_TYPE;
atom.m_long = S_IFDIR;
entry.append(atom);
atom.m_uds = UDS_ACCESS;
atom.m_long = S_IRUSR | S_IRGRP | S_IROTH |
S_IWUSR | S_IWGRP | S_IWOTH;
entry.append(atom);
statEntry(entry);
finished();
// This call happens on autodetect by kdemm. So close the camera, but
// only if no more requests are pending.
idletime = MAXIDLETIME;
}
// Implements a regular stat() of a file / directory, returning all we know about it
void KameraProtocol::statRegular(const KURL &url)
{
UDSEntry entry;
int gpr;
kdDebug(7123) << "statRegular(\"" << url.path() << "\")" << endl;
if (openCamera() == false) {
error(KIO::ERR_DOES_NOT_EXIST, url.path());
return;
}
// fprintf(stderr,"statRegular(%s)\n",url.path().latin1());
// Is "url" a directory?
CameraList *dirList;
gp_list_new(&dirList);
kdDebug(7123) << "statRegular() Requesting directories list for " << url.directory() << endl;
gpr = gp_camera_folder_list_folders(m_camera, tocstr(fix_foldername(url.directory(false))), dirList, m_context);
if (gpr != GP_OK) {
if ((gpr == GP_ERROR_FILE_NOT_FOUND) || (gpr == GP_ERROR_DIRECTORY_NOT_FOUND))
error(KIO::ERR_DOES_NOT_EXIST, url.path());
else
error(KIO::ERR_UNKNOWN, gp_result_as_string(gpr));
gp_list_free(dirList);
return;
}
#define GPHOTO_TEXT_FILE(xx) \
if (!url.path().compare("/"#xx".txt")) { \
CameraText xx; \
gpr = gp_camera_get_about(m_camera, &xx, m_context); \
if (gpr != GP_OK) { \
error(KIO::ERR_DOES_NOT_EXIST, url.fileName()); \
return; \
} \
translateTextToUDS(entry,#xx".txt",xx.text); \
statEntry(entry); \
finished(); \
return; \
}
GPHOTO_TEXT_FILE(about);
GPHOTO_TEXT_FILE(manual);
GPHOTO_TEXT_FILE(summary);
#undef GPHOTO_TEXT_FILE
const char *name;
for(int i = 0; i < gp_list_count(dirList); i++) {
gp_list_get_name(dirList, i, &name);
if (url.fileName().compare(name) == 0) {
gp_list_free(dirList);
UDSEntry entry;
translateDirectoryToUDS(entry, url.fileName());
statEntry(entry);
finished();
return;
}
}
gp_list_free(dirList);
// Is "url" a file?
CameraFileInfo info;
gpr = gp_camera_file_get_info(m_camera, tocstr(fix_foldername(url.directory(false))), tocstr(url.fileName()), &info, m_context);
if (gpr != GP_OK) {
if ((gpr == GP_ERROR_FILE_NOT_FOUND) || (gpr == GP_ERROR_DIRECTORY_NOT_FOUND))
error(KIO::ERR_DOES_NOT_EXIST, url.path());
else
error(KIO::ERR_UNKNOWN, gp_result_as_string(gpr));
return;
}
translateFileToUDS(entry, info, url.fileName());
statEntry(entry);
finished();
}
// The KIO slave "del" function.
void KameraProtocol::del(const KURL &url, bool isFile)
{
kdDebug(7123) << "KameraProtocol::del(" << url.path() << ")" << endl;
if(!openCamera()) {
error(KIO::ERR_CANNOT_DELETE, url.fileName());
return;
}
if (!cameraSupportsDel()) {
error(KIO::ERR_CANNOT_DELETE, url.fileName());
return;
}
if(isFile){
CameraList *list;
gp_list_new(&list);
int ret;
ret = gp_camera_file_delete(m_camera, tocstr(fix_foldername(url.directory(false))), tocstr(url.fileName()), m_context);
if(ret != GP_OK) {
error(KIO::ERR_CANNOT_DELETE, url.fileName());
} else {
finished();
}
}
}
// The KIO slave "listDir" function.
void KameraProtocol::listDir(const KURL &url)
{
kdDebug(7123) << "KameraProtocol::listDir(" << url.path() << ")" << endl;
if (url.host().isEmpty()) {
KURL xurl;
// List the available cameras
TQStringList groupList = m_config->groupList();
kdDebug(7123) << "Found cameras: " << groupList.join(", ") << endl;
TQStringList::Iterator it;
UDSEntry entry;
UDSAtom atom;
/*
* What we do:
* - Autodetect cameras and remember them with their ports.
* - List all saved and possible offline cameras.
* - List all autodetected and not yet printed cameras.
*/
TQMap<TQString,TQString> ports, names;
TQMap<TQString,int> modelcnt;
/* Autodetect USB cameras ... */
GPContext *glob_context = NULL;
int i, count;
CameraList *list;
CameraAbilitiesList *al;
GPPortInfoList *il;
gp_list_new (&list);
gp_abilities_list_new (&al);
gp_abilities_list_load (al, glob_context);
gp_port_info_list_new (&il);
gp_port_info_list_load (il);
gp_abilities_list_detect (al, il, list, glob_context);
gp_abilities_list_free (al);
gp_port_info_list_free (il);
count = gp_list_count (list);
for (i = 0 ; i<count ; i++) {
const char *model, *value;
gp_list_get_name (list, i, &model);
gp_list_get_value (list, i, &value);
ports[value] = model;
// NOTE: We might get different ports than usb: later!
if (strcmp(value, "usb:"))
names[model] = value;
/* Save them, even though we can autodetect them for
* offline listing.
*/
m_config->setGroup(model);
m_config->writeEntry("Model",model);
m_config->writeEntry("Path",value);
modelcnt[model]++;
}
gp_list_free (list);
/* Avoid duplicated entry for usb: and usb:001,042 entries. */
if (ports.contains("usb:") && names[ports["usb:"]]!="usb:")
ports.remove("usb:");
for (it = groupList.begin(); it != groupList.end(); it++) {
TQString m_cfgPath;
if (*it == "<default>")
continue;
m_config->setGroup(*it);
m_cfgPath = m_config->readEntry("Path");
/* If autodetect by USB autodetect ... skip it here.
* We leave unattached USB cameras in here, because the user
* might plug them in later and does not want to press reload.
* We add them with port "usb:".
*/
if (modelcnt[*it] > 0)
continue;
entry.clear();
atom.m_uds = UDS_FILE_TYPE;atom.m_long = S_IFDIR;entry.append(atom);
atom.m_uds = UDS_NAME;atom.m_str = *it;entry.append(atom);
atom.m_uds = UDS_ACCESS;
atom.m_long = S_IRUSR | S_IRGRP | S_IROTH |
S_IWUSR | S_IWGRP | S_IWOTH;
entry.append(atom);
atom.m_uds = UDS_URL;
xurl.setProtocol("camera");
xurl.setUser(*it);
/* Avoid setting usb:xxx,yyy. */
if (m_cfgPath.contains("usb:")>0) {
names[*it] = "usb:";
xurl.setHost("usb:");
} else {
xurl.setHost(m_cfgPath);
}
xurl.setPath("/");
atom.m_str = xurl.url();
entry.append(atom);
listEntry(entry, false);
}
TQMap<TQString,TQString>::iterator portsit;
for (portsit = ports.begin(); portsit != ports.end(); portsit++) {
entry.clear();
atom.m_uds = UDS_FILE_TYPE;atom.m_long = S_IFDIR; entry.append(atom);
atom.m_uds = UDS_NAME;atom.m_str = portsit.data();entry.append(atom);
atom.m_uds = UDS_ACCESS;
atom.m_long = S_IRUSR | S_IRGRP | S_IROTH |
S_IWUSR | S_IWGRP | S_IWOTH;
entry.append(atom);
atom.m_uds = UDS_URL;
xurl.setProtocol("camera");
xurl.setHost(portsit.key());
xurl.setUser(portsit.data());
xurl.setPath("/");
atom.m_str = xurl.url();
entry.append(atom);
listEntry(entry, false);
}
listEntry(entry, true);
finished();
return;
}
if (url.path() == "") {
KURL rooturl(url);
kdDebug(7123) << "redirecting to /" << endl;
rooturl.setPath("/");
rooturl.setHost(url.host());
rooturl.setUser(url.user());
redirection(rooturl);
finished();
return;
}
if (!openCamera()) {
error(KIO::ERR_COULD_NOT_READ,url.path());
return;
}
CameraList *dirList;
CameraList *fileList;
CameraList *specialList;
gp_list_new(&dirList);
gp_list_new(&fileList);
gp_list_new(&specialList);
int gpr;
if (!url.path().compare("/")) {
CameraText text;
if (GP_OK == gp_camera_get_manual(m_camera, &text, m_context))
gp_list_append(specialList,"manual.txt",NULL);
if (GP_OK == gp_camera_get_about(m_camera, &text, m_context))
gp_list_append(specialList,"about.txt",NULL);
if (GP_OK == gp_camera_get_summary(m_camera, &text, m_context))
gp_list_append(specialList,"summary.txt",NULL);
}
gpr = readCameraFolder(url.path(), dirList, fileList);
if(gpr != GP_OK) {
kdDebug(7123) << "read Camera Folder failed:" << gp_result_as_string(gpr) <<endl;
gp_list_free(dirList);
gp_list_free(fileList);
gp_list_free(specialList);
error(KIO::ERR_COULD_NOT_READ, gp_result_as_string(gpr));
return;
}
totalSize(gp_list_count(specialList) + gp_list_count(dirList) + gp_list_count(fileList));
UDSEntry entry;
const char *name;
for(int i = 0; i < gp_list_count(dirList); ++i) {
gp_list_get_name(dirList, i, &name);
translateDirectoryToUDS(entry, TQString::fromLocal8Bit(name));
listEntry(entry, false);
}
CameraFileInfo info;
for(int i = 0; i < gp_list_count(fileList); ++i) {
gp_list_get_name(fileList, i, &name);
// we want to know more info about files (size, type...)
gp_camera_file_get_info(m_camera, tocstr(url.path()), name, &info, m_context);
translateFileToUDS(entry, info, TQString::fromLocal8Bit(name));
listEntry(entry, false);
}
if (!url.path().compare("/")) {
CameraText text;
if (GP_OK == gp_camera_get_manual(m_camera, &text, m_context)) {
translateTextToUDS(entry, "manual.txt", text.text);
listEntry(entry, false);
}
if (GP_OK == gp_camera_get_about(m_camera, &text, m_context)) {
translateTextToUDS(entry, "about.txt", text.text);
listEntry(entry, false);
}
if (GP_OK == gp_camera_get_summary(m_camera, &text, m_context)) {
translateTextToUDS(entry, "summary.txt", text.text);
listEntry(entry, false);
}
}
gp_list_free(fileList);
gp_list_free(dirList);
gp_list_free(specialList);
listEntry(entry, true); // 'entry' is not used in this case - we only signal list completion
finished();
}
void KameraProtocol::setHost(const TQString& host, int port, const TQString& user, const TQString& pass )
{
kdDebug(7123) << "KameraProtocol::setHost(" << host << ", " << port << ", " << user << ", " << pass << ")" << endl;
int gpr, idx;
if (!host.isEmpty()) {
kdDebug(7123) << "model is " << user << ", port is " << host << endl;
if (m_camera) {
kdDebug(7123) << "Configuration change detected" << endl;
closeCamera();
gp_camera_unref(m_camera);
m_camera = NULL;
infoMessage( i18n("Reinitializing camera") );
} else {
kdDebug(7123) << "Initializing camera" << endl;
infoMessage( i18n("Initializing camera") );
}
// fetch abilities
CameraAbilitiesList *abilities_list;
gp_abilities_list_new(&abilities_list);
gp_abilities_list_load(abilities_list, m_context);
idx = gp_abilities_list_lookup_model(abilities_list, tocstr(user));
if (idx < 0) {
gp_abilities_list_free(abilities_list);
kdDebug(7123) << "Unable to get abilities for model: " << user << endl;
error(KIO::ERR_UNKNOWN, gp_result_as_string(idx));
return;
}
gp_abilities_list_get_abilities(abilities_list, idx, &m_abilities);
gp_abilities_list_free(abilities_list);
// fetch port
GPPortInfoList *port_info_list;
GPPortInfo port_info;
gp_port_info_list_new(&port_info_list);
gp_port_info_list_load(port_info_list);
idx = gp_port_info_list_lookup_path(port_info_list, tocstr(host));
/* Handle erronously passed usb:XXX,YYY */
if ((idx < 0) && host.startsWith("usb:"))
idx = gp_port_info_list_lookup_path(port_info_list, "usb:");
if (idx < 0) {
gp_port_info_list_free(port_info_list);
kdDebug(7123) << "Unable to get port info for path: " << host << endl;
error(KIO::ERR_UNKNOWN, gp_result_as_string(idx));
return;
}
gp_port_info_list_get_info(port_info_list, idx, &port_info);
gp_port_info_list_free(port_info_list);
// create a new camera object
gpr = gp_camera_new(&m_camera);
if(gpr != GP_OK) {
error(KIO::ERR_UNKNOWN, gp_result_as_string(gpr));
return;
}
// register gphoto2 callback functions
gp_context_set_status_func(m_context, frontendCameratqStatus, this);
gp_context_set_progress_funcs(m_context, frontendProgressStart, frontendProgressUpdate, NULL, this);
// gp_camera_set_message_func(m_camera, ..., this)
// set model and port
gp_camera_set_abilities(m_camera, m_abilities);
gp_camera_set_port_info(m_camera, port_info);
gp_camera_set_port_speed(m_camera, 0); // TODO: the value needs to be configurable
kdDebug(7123) << "Opening camera model " << user << " at " << host << endl;
TQString errstr;
if (!openCamera(errstr)) {
kdDebug(7123) << "Unable to init camera: " << gp_result_as_string(gpr) << endl;
error(KIO::ERR_SERVICE_NOT_AVAILABLE, errstr);
gp_camera_exit(m_camera, m_context);
return;
}
}
}
void KameraProtocol::reparseConfiguration(void)
{
// we have no global config, do we?
}
// translate a simple text to a UDS entry
void KameraProtocol::translateTextToUDS(UDSEntry &udsEntry, const TQString &fn,
const char *text
) {
UDSAtom atom;
udsEntry.clear();
atom.m_uds = UDS_FILE_TYPE; // UDS type
atom.m_long = S_IFREG; // file
udsEntry.append(atom);
atom.m_uds = UDS_NAME;
atom.m_str = fn;
udsEntry.append(atom);
atom.m_uds = UDS_SIZE;
atom.m_long = strlen(text);
udsEntry.append(atom);
atom.m_uds = UDS_ACCESS;
atom.m_long = S_IRUSR | S_IRGRP | S_IROTH;
udsEntry.append(atom);
}
// translate a CameraFileInfo to a UDSEntry which we can return as a directory listing entry
void KameraProtocol::translateFileToUDS(UDSEntry &udsEntry, const CameraFileInfo &info, TQString name)
{
UDSAtom atom;
udsEntry.clear();
atom.m_uds = UDS_FILE_TYPE; // UDS type
atom.m_long = S_IFREG; // file
udsEntry.append(atom);
atom.m_uds = UDS_NAME;
if (info.file.fields & GP_FILE_INFO_NAME)
atom.m_str = TQString::fromLocal8Bit(info.file.name);
else
atom.m_str = name;
udsEntry.append(atom);
if (info.file.fields & GP_FILE_INFO_SIZE) {
atom.m_uds = UDS_SIZE;
atom.m_long = info.file.size;
udsEntry.append(atom);
}
if (info.file.fields & GP_FILE_INFO_MTIME) {
atom.m_uds = UDS_MODIFICATION_TIME;
atom.m_long = info.file.mtime;
udsEntry.append(atom);
} else {
atom.m_uds = UDS_MODIFICATION_TIME;
atom.m_long = time(NULL); /* NOW */
udsEntry.append(atom);
}
if (info.file.fields & GP_FILE_INFO_TYPE) {
atom.m_uds = UDS_MIME_TYPE;
atom.m_str = TQString::tqfromLatin1(info.file.type);
udsEntry.append(atom);
}
if (info.file.fields & GP_FILE_INFO_PERMISSIONS) {
atom.m_uds = UDS_ACCESS;
atom.m_long = 0;
atom.m_long |= (info.file.permissions & GP_FILE_PERM_READ) ? (S_IRUSR | S_IRGRP | S_IROTH) : 0;
// we cannot represent individual FP_FILE_PERM_DELETE permission in the Unix access scheme
// since the parent directory's write permission defines that
udsEntry.append(atom);
} else {
// basic permissions, in case the camera doesn't provide permissions info
atom.m_uds = UDS_ACCESS;
atom.m_long = S_IRUSR | S_IRGRP | S_IROTH;
udsEntry.append(atom);
}
// TODO: We do not handle info.preview in any way
}
// translate a directory name to a UDSEntry which we can return as a directory listing entry
void KameraProtocol::translateDirectoryToUDS(UDSEntry &udsEntry, const TQString &dirname)
{
UDSAtom atom;
udsEntry.clear();
atom.m_uds = UDS_FILE_TYPE; // UDS type
atom.m_long = S_IFDIR; // directory
udsEntry.append(atom);
atom.m_uds = UDS_NAME;
atom.m_str = dirname;
udsEntry.append(atom);
atom.m_uds = UDS_ACCESS;
atom.m_long = S_IRUSR | S_IRGRP | S_IROTH |
S_IWUSR | S_IWGRP | S_IWOTH;
udsEntry.append(atom);
atom.m_uds = UDS_MIME_TYPE;
atom.m_str = "inode/directory";
udsEntry.append(atom);
}
bool KameraProtocol::cameraSupportsDel(void)
{
return (m_abilities.file_operations & GP_FILE_OPERATION_DELETE);
}
bool KameraProtocol::cameraSupportsPut(void)
{
return (m_abilities.folder_operations & GP_FOLDER_OPERATION_PUT_FILE);
}
bool KameraProtocol::cameraSupportsPreview(void)
{
return (m_abilities.file_operations & GP_FILE_OPERATION_PREVIEW);
}
int KameraProtocol::readCameraFolder(const TQString &folder, CameraList *dirList, CameraList *fileList)
{
kdDebug(7123) << "KameraProtocol::readCameraFolder(" << folder << ")" << endl;
int gpr;
if((gpr = gp_camera_folder_list_folders(m_camera, tocstr(folder), dirList, m_context)) != GP_OK)
return gpr;
if((gpr = gp_camera_folder_list_files(m_camera, tocstr(folder), fileList, m_context)) != GP_OK)
return gpr;
return GP_OK;
}
void frontendProgressUpdate(
GPContext * /*context*/, unsigned int /*id*/, float /*current*/, void *data
) {
KameraProtocol *object = (KameraProtocol*)data;
// This code will get the last chunk of data retrieved from the
// camera and pass it to KIO, to allow progressive display
// of the downloaded photo.
const char *fileData = NULL;
long unsigned int fileSize = 0;
// This merely returns us a pointer to gphoto's internal data
// buffer -- there's no expensive memcpy
if (!object->getFile())
return;
gp_file_get_data_and_size(object->getFile(), &fileData, &fileSize);
// make sure we're not sending zero-sized chunks (=EOF)
if (fileSize > 0) {
// XXX using assign() here causes segfault, prolly because
// gp_file_free is called before chunkData goes out of scope
TQByteArray chunkDataBuffer;
chunkDataBuffer.setRawData(fileData + object->getFileSize(), fileSize - object->getFileSize());
// Note: this will fail with sizes > 16MB ...
object->data(chunkDataBuffer);
object->processedSize(fileSize);
chunkDataBuffer.resetRawData(fileData + object->getFileSize(), fileSize - object->getFileSize());
object->setFileSize(fileSize);
}
}
unsigned int frontendProgressStart(
GPContext * /*context*/, float totalsize, const char *format, va_list args,
void *data
) {
KameraProtocol *object = (KameraProtocol*)data;
char *status;
/* We must copy the va_list to walk it twice, or all hell
* breaks loose on non-i386 platforms.
*/
#if defined(HAVE_VA_COPY) || defined(HAVE___VA_COPY)
va_list xvalist;
# ifdef HAVE_VA_COPY
va_copy(xvalist, args);
# elif HAVE___VA_COPY
__va_copy(xvalist, args);
# endif
int size=vsnprintf(NULL, 0, format, xvalist);
if(size<=0)
return GP_OK; // vsnprintf is broken, better don't do anything.
status=new char[size+1];
# ifdef HAVE_VA_COPY
va_copy(xvalist, args);
# elif HAVE___VA_COPY
__va_copy(xvalist, args);
# endif
vsnprintf(status, size+1, format, xvalist);
#else
/* We cannot copy the va_list, so make sure we
* walk it just _once_.
*/
status=new char[300];
vsnprintf(status, 300, format, args);
#endif
object->infoMessage(TQString::fromLocal8Bit(status));
delete [] status;
object->totalSize((int)totalsize); // hack: call slot directly
return GP_OK;
}
// this callback function is activated on every status message from gphoto2
static void frontendCameratqStatus(GPContext * /*context*/, const char *format, va_list args, void *data)
{
KameraProtocol *object = (KameraProtocol*)data;
char *status;
/* We must copy the va_list to walk it twice, or all hell
* breaks loose on non-i386 platforms.
*/
#if defined(HAVE_VA_COPY) || defined(HAVE___VA_COPY)
va_list xvalist;
# ifdef HAVE_VA_COPY
va_copy(xvalist, args);
# elif HAVE___VA_COPY
__va_copy(xvalist, args);
# endif
int size=vsnprintf(NULL, 0, format, xvalist);
if(size<=0)
return; // vsnprintf is broken, better don't do anything.
status=new char[size+1];
# ifdef HAVE_VA_COPY
va_copy(xvalist, args);
# elif HAVE___VA_COPY
__va_copy(xvalist, args);
# endif
vsnprintf(status, size+1, format, xvalist);
#else
/* We cannot copy the va_list, so make sure we
* walk it just _once_.
*/
status=new char[300];
vsnprintf(status, 300, format, args);
#endif
object->infoMessage(TQString::fromLocal8Bit(status));
delete [] status;
}