Add author-abandoned basket application

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/basket@1072339 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 226 insertions, 0 deletions

diff --git a/src/crashhandler.cpp b/src/crashhandler.cpp
new file mode 100644
index 0000000..64e745b
--- /dev/null
+++ b/src/crashhandler.cpp
@@ -0,0 +1,226 @@
+// Code from Amarok.
+
+/***************************************************************************
+ *   Copyright (C) 2005 Max Howell <max.howell@methylblue.com>             *
+ *                                                                         *
+ *   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.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+//#include "amarok.h"
+//#include "amarokconfig.h"
+#include "crashhandler.h"
+//#include "debug.h"
+#include "config.h"
+
+#include <kapplication.h> //invokeMailer()
+#include <kaboutdata.h>
+#include <kdeversion.h>
+#include <klocale.h>
+#include <ktempfile.h>
+
+#include <qfile.h>
+#include <qregexp.h>
+#include <qtextstream.h>
+
+#include <cstdio>         //popen, fread
+#include <iostream>
+#include <sys/types.h>    //pid_t
+#include <sys/wait.h>     //waitpid
+//#include <taglib/taglib.h>
+#include <unistd.h>       //write, getpid
+
+
+
+//#ifndef TAGLIB_PATCH_VERSION
+//// seems to be wheel's style
+//#define TAGLIB_PATCH_VERSION 0
+//#endif
+
+
+    #if 0
+    class CrashHandlerWidget : public KDialog {
+    public:
+        CrashHandlerWidget();
+    };
+    #endif
+
+    static QString
+    runCommand( const QCString &command )
+    {
+        static const uint SIZE = 40960; //40 KiB
+        static char stdoutBuf[ SIZE ];
+
+//        debug() << "Running: " << command << endl;
+
+        FILE *process = ::popen( command, "r" );
+        stdoutBuf[ std::fread( static_cast<void*>( stdoutBuf ), sizeof(char), SIZE-1, process ) ] = '\0';
+        ::pclose( process );
+
+        return QString::fromLocal8Bit( stdoutBuf );
+    }
+
+    void
+    Crash::crashHandler( int /*signal*/ )
+    {
+        // we need to fork to be able to get a
+        // semi-decent bt - I dunno why
+        const pid_t pid = ::fork();
+
+        if( pid <= 0 )
+        {
+            // we are the child process (the result of the fork)
+//            debug() << "amaroK is crashing...\n";
+
+            QString subject = "[basket-crash] " VERSION " ";
+            QString body = i18n(
+                    "%1 has crashed! We're sorry about this.\n"
+                    "\n"
+                    "But, all is not lost! You could potentially help us fix the crash. "
+                    "Information describing the crash is below, so just click send, "
+                    "or if you have time, write a brief description of how the crash happened first.\n\n"
+                    "Many thanks." ).arg(kapp->aboutData()->programName()) + "\n\n";
+            body += "\n\n\n\n\n\n" + i18n(
+                    "The information below is to help the developers identify the problem, "
+                    "please do not modify it." ) + "\n\n\n\n";
+
+
+            body += "======== DEBUG INFORMATION  =======\n"
+                    "Version:    " VERSION "\n"
+                    "Build date: " __DATE__ "\n"
+                    "CC version: " __VERSION__ "\n" //assuming we're using GCC
+                    "KDElibs:    " KDE_VERSION_STRING "\n"
+;//                    "TagLib:     %2.%3.%4\n";
+
+/*            body = body
+                    .arg( TAGLIB_MAJOR_VERSION )
+                    .arg( TAGLIB_MINOR_VERSION )
+                    .arg( TAGLIB_PATCH_VERSION );*/
+
+            #ifdef NDEBUG
+            body += "NDEBUG:     true";
+            #endif
+            body += "\n";
+
+            /// obtain the backtrace with gdb
+
+            KTempFile temp;
+            temp.setAutoDelete( true );
+
+            const int handle = temp.handle();
+
+//             QCString gdb_command_string =
+//                     "file amarokapp\n"
+//                     "attach " + QCString().setNum( ::getppid() ) + "\n"
+//                     "bt\n" "echo \\n\n"
+//                     "thread apply all bt\n";
+
+            const QCString gdb_batch =
+                    "bt\n"
+                    "echo \\n\\n\n"
+                    "bt full\n"
+                    "echo \\n\\n\n"
+                    "echo ==== (gdb) thread apply all bt ====\\n\n"
+                    "thread apply all bt\n";
+
+            ::write( handle, gdb_batch, gdb_batch.length() );
+            ::fsync( handle );
+
+            // so we can read stderr too
+            ::dup2( fileno( stdout ), fileno( stderr ) );
+
+
+            QCString gdb;
+            gdb  = "gdb --nw -n --batch -x ";
+            gdb += temp.name().latin1();
+            gdb += " basket ";
+            gdb += QCString().setNum( ::getppid() );
+
+            QString bt = runCommand( gdb );
+
+            /// clean up
+            bt.remove( "(no debugging symbols found)..." );
+            bt.remove( "(no debugging symbols found)\n" );
+            bt.replace( QRegExp("\n{2,}"), "\n" ); //clean up multiple \n characters
+            bt.stripWhiteSpace();
+
+            /// analyze usefulness
+            bool useful = true;
+            const QString fileCommandOutput = runCommand( "file `which basket`" );
+
+            if( fileCommandOutput.find( "not stripped", false ) == -1 )
+                subject += "[___stripped]"; //same length as below
+            else
+                subject += "[NOTstripped]";
+
+            if( !bt.isEmpty() ) {
+                const int invalidFrames = bt.contains( QRegExp("\n#[0-9]+\\s+0x[0-9A-Fa-f]+ in \\?\\?") );
+                const int validFrames = bt.contains( QRegExp("\n#[0-9]+\\s+0x[0-9A-Fa-f]+ in [^?]") );
+                const int totalFrames = invalidFrames + validFrames;
+
+                if( totalFrames > 0 ) {
+                    const double validity = double(validFrames) / totalFrames;
+                    subject += QString("[validity: %1]").arg( validity, 0, 'f', 2 );
+                    if( validity <= 0.5 ) useful = false;
+                }
+                subject += QString("[frames: %1]").arg( totalFrames, 3 /*padding*/ );
+
+                if( bt.find( QRegExp(" at \\w*\\.cpp:\\d+\n") ) >= 0 )
+                    subject += "[line numbers]";
+            }
+            else
+                useful = false;
+
+//            subject += QString("[%1]").arg( AmarokConfig::soundSystem().remove( QRegExp("-?engine") ) );
+
+//            debug() << subject << endl;
+
+
+            //TODO -fomit-frame-pointer buggers up the backtrace, so detect it
+            //TODO -O optimization can rearrange execution and stuff so show a warning for the developer
+            //TODO pass the CXXFLAGS used with the email
+
+            if( useful ) {
+                body += "==== file `which basket` ==========\n";
+                body += fileCommandOutput + "\n";
+                body += "==== (gdb) bt =====================\n";
+				body += bt;//+ "\n\n";
+//                body += "==== kdBacktrace() ================\n";
+//                body += kdBacktrace();
+
+                //TODO startup notification
+                kapp->invokeMailer(
+                        /*to*/          "kelvie@ieee.org",
+                        /*cc*/          QString(),
+                        /*bcc*/         QString(),
+                        /*subject*/     subject,
+                        /*body*/        body,
+                        /*messageFile*/ QString(),
+                        /*attachURLs*/  QStringList(),
+                        /*startup_id*/  "" );
+            }
+            else {
+				std::cout << "\n" + i18n( "%1 has crashed! We're sorry about this.\n\n"
+                                          "But, all is not lost! Perhaps an upgrade is already available "
+                                          "which fixes the problem. Please check your distribution's software repository." )
+						.arg(kapp->aboutData()->programName()).local8Bit() << std::endl;
+            }
+
+            //_exit() exits immediately, otherwise this
+            //function is called repeatedly ad finitum
+            ::_exit( 255 );
+        }
+
+        else {
+            // we are the process that crashed
+
+            ::alarm( 0 );
+
+            // wait for child to exit
+            ::waitpid( pid, NULL, 0 );
+            ::_exit( 253 );
+        }
+    }