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transmission/beos/TRApplication.cpp

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#include "TRApplication.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <AppFileInfo.h>
#include <Alert.h>
#include <Bitmap.h>
#include <File.h>
#include <FindDirectory.h>
#include <Messenger.h>
#include <Mime.h>
#include <Path.h>
#include <String.h>
#include <Resources.h>
#include <Roster.h>
int main(int argc, char** argv) {
TRApplication *app = new TRApplication();
if (app->InitCheck() == B_OK) {
app->Run();
} else {
BString errMsg("");
errMsg << "The following error occurred loading Transmission:\n"
<< strerror(app->InitCheck());
BAlert *ohNo = new BAlert("Transmission Error",
errMsg.String(),
"OK", NULL, NULL, B_WIDTH_AS_USUAL, B_STOP_ALERT);
ohNo->Go();
}
delete app;
return (0);
}
TRApplication::TRApplication() : BApplication(APP_SIG) {
status_t err = B_OK;
torrentDir = NULL;
// Install Mime types if necessary.
BMimeType torrentType("application/x-bittorrent");
if (torrentType.InitCheck() == B_OK) {
if (!torrentType.IsInstalled()) {
fprintf(stderr, "Installing mime type...\n");
// Icon
app_info runningInfo;
GetAppInfo(&runningInfo);
BFile appFile(&(runningInfo.ref), B_READ_ONLY);
BResources res(&appFile, false);
size_t len = 0;
BBitmap *icon = NULL;
void *iconBits = NULL;
iconBits = res.FindResource('ICON', "BEOS:L:application/x-bittorrent", &len);
if (iconBits) {
icon = new BBitmap(BRect(0, 0, 31, 31), B_CMAP8);
icon->SetBits(iconBits, len, 0, B_CMAP8);
torrentType.SetIcon(icon, B_LARGE_ICON);
delete icon;
icon = NULL;
len = 0;
}
iconBits = res.FindResource('ICON', "BEOS:M:application/x-bittorrent", &len);
if (iconBits) {
icon = new BBitmap(BRect(0, 0, 15, 15), B_CMAP8);
icon->SetBits(iconBits, len, 0, B_CMAP8);
torrentType.SetIcon(icon, B_MINI_ICON);
delete icon;
}
// Extensions
BMessage extensions;
extensions.AddString("extensions", "torrent");
torrentType.SetFileExtensions(&extensions);
torrentType.SetShortDescription("BitTorrent Meta File");
torrentType.SetLongDescription("BitTorrent Protocol Meta File (http://www.bittorrent.com)");
// Set Preferred Application
torrentType.SetPreferredApp(APP_SIG, B_OPEN);
torrentType.Install();
}
}
// Create Settings folder and structure
BPath settingsPath;
err = find_directory(B_USER_SETTINGS_DIRECTORY, &settingsPath, false);
if (err == B_OK) {
BDirectory settings(settingsPath.Path());
BDirectory *trSettings = new BDirectory();
err = settings.CreateDirectory("Transmission", trSettings);
if (err == B_FILE_EXISTS) {
err = trSettings->SetTo(&settings, "Transmission");
}
if (err == B_OK) {
torrentDir = new BDirectory();
err = trSettings->CreateDirectory("Torrents", torrentDir);
if (err != B_OK) {
torrentDir->SetTo(trSettings, "Torrents");
}
}
delete trSettings;
}
// Create window
window = new TRWindow();
window->RescanTorrents();
settings = new TRPrefsWindow();
openPanel = new BFilePanel();
openPanel->SetRefFilter(new TRFilter());
}
TRApplication::~TRApplication() {
if (window->Lock()) {
window->Quit();
}
if (settings->Lock()) {
settings->Quit();
}
if (openPanel != NULL) {
delete openPanel;
}
if (torrentDir != NULL) {
delete torrentDir;
}
}
/**
* Checks to make sure our Settings directory structure is in place.
* If this fails, then we need to display an alert and vomit.
*/
status_t TRApplication::InitCheck() {
if (torrentDir != NULL) {
return torrentDir->InitCheck();
}
return B_ERROR;
}
void TRApplication::AboutRequested() {
// Read the application version info
app_info runningInfo;
GetAppInfo(&runningInfo);
BFile appFile(&(runningInfo.ref), B_READ_ONLY);
BAppFileInfo appInfo(&appFile);
version_info vInfo;
appInfo.GetVersionInfo(&vInfo, B_APP_VERSION_KIND);
BString aboutMsg("");
aboutMsg << "Transmission\n"
<< "Version " << vInfo.major << "." << vInfo.middle << "." << vInfo.minor << "\n"
<< "Eric Petit & Bryan Varner\n";
BAlert *aboutBox = new BAlert("About Transmission", aboutMsg.String(), "Close");
aboutBox->Go();
}
void TRApplication::ReadyToRun() {
SetPulseRate(500000);
window->Show();
}
void TRApplication::Pulse() {
window->UpdateList(-1, false);
}
/**
* When a ref is received, we copy each file that is to be opened into
* B_USER_SETTINGS/Transmission/Torrents
*
* Our window node_monitors this folder for added / removed torrent meta files.
*
* Each copy is performed in a seperate thread to avoid blocking / locking the app.
*/
void TRApplication::RefsReceived(BMessage *message) {
int32 count;
type_code code;
message->GetInfo("refs", &code, &count);
for (int i = 0; i < count; i++) {
entry_ref *ref = (entry_ref*)calloc(sizeof(entry_ref), 1);
if (message->FindRef("refs", i, ref) == B_OK) {
thread_id cp_thread = spawn_thread(TRApplication::Copy, "TorrentDuper",
B_NORMAL_PRIORITY, (void *)ref);
if (!((cp_thread) < B_OK)) {
resume_thread(cp_thread);
}
}
}
}
/**
* BMessage handling.
*/
void TRApplication::MessageReceived(BMessage *message) {
BApplication::MessageReceived(message);
/*
* When the copy of a torrent file is complete, we get a message
* signaling that we should add the now copied .torrent file to our Transfer Window.
*/
if (message->what == TR_ADD) {
// Add the torrent to the window.
entry_ref torrentRef;
if (message->FindRef("torrent", &torrentRef) == B_OK) {
BEntry *entry = new BEntry(&torrentRef, true);
window->AddEntry(entry);
delete entry;
}
/* Show the Open Dialog */
} else if (message->what == TR_OPEN) {
openPanel->Show();
} else if (message->what == TR_SETTINGS) {
settings->MoveTo(window->Frame().left + (window->Frame().Width() - settings->Frame().Width()) / 2,
window->Frame().top + (window->Frame().Height() - settings->Frame().Height()) / 2);
settings->Show();
} else if (message->what == TR_RELOAD_SETTINGS) {
window->LoadSettings();
}
}
bool TRApplication::QuitRequested() {
return BApplication::QuitRequested();
}
/**
* Thread Function.
* The thread copies the original .torrent file into the torrents folder,
* then signals the window to load the torrent meta info from the copy.
* The torrent window will then node_monitor the file so that if it's removed
* the torrent will cease.
*
* Keeping the file copy in a separate thread keeps us from blocking up the
* rest of our program.
*
* This behavior lets us kill the original .torrent download from disc (which
* speaking as a user I have a tendency to do) but keep the meta around for
* Transmission to use later.
*
* If the user whacks the .torrent file from our settings folder, then we'll
* remove it from the list (node_monitor!) and if they remove it from our list
* we'll remove it from the file system.
*/
int32 TRApplication::Copy(void *data) {
entry_ref *ref = (entry_ref*)data;
BFile source(ref, B_READ_ONLY);
BFile target(((TRApplication*)be_app)->TorrentDir(), ref->name,
B_WRITE_ONLY | B_CREATE_FILE | B_FAIL_IF_EXISTS);
BEntry targetEntry(((TRApplication*)be_app)->TorrentDir(), ref->name);
entry_ref targetRef;
targetEntry.GetRef(&targetRef);
// Only perform the copy if the target is freshly created. Everything is B_OK!
if (source.InitCheck() == B_OK && target.InitCheck() == B_OK) {
if (target.Lock() == B_OK) {
char *buffer = (char*)calloc(1, 4096); // 4k data buffer.
ssize_t read = 0;
while ((read = source.Read(buffer, 4096)) > 0) {
target.Write(buffer, read);
}
free(buffer);
target.Unlock();
}
}
BMessage msg(TR_ADD);
msg.AddRef("torrent", &targetRef);
BMessenger messenger(be_app);
messenger.SendMessage(&msg);
free(ref);
return B_OK;
}
/**
* Filters the FilePanel for torrent files and directories.
*/
bool TRFilter::Filter(const entry_ref *ref, BNode *node, struct stat *st, const char *mimetype) {
return (node->IsDirectory() ||
(strcmp(mimetype, "application/x-bittorrent") == 0) ||
(strstr(ref->name, ".torrent") != NULL));
}
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