Autodetect downloaded mime type and compare against category; if wallpaper downloads something other than image abort

This relates to Bug 2127

tdeio/tdeio/kmimemagic.cpp

@@ -165,9 +165,13 @@ int KMimeMagic::apprentice( const TQString& magicfile ) {
 	TQString maindatabase = magicfile;
 	if (maindatabase == "") {
 		maindatabase = magic_getpath(0, FILE_LOAD);
+		if (maindatabase == "") {
+			kdWarning() << k_funcinfo << "Unable to locate system mime magic database; mime type detection will not function correctly!" << endl;
+		}
 	}
 	conf->databases.clear();
 	conf->databases.append(maindatabase);
+printf("[RAJA DEBUG 342.0] Loading database '%s'\n\r", conf->databases[0].ascii()); fflush(stdout);
 	return magic_load(conf->magic, conf->databases[0].latin1());
 }
 
@@ -186,6 +190,7 @@ void process(struct config_rec* conf, const TQString & fn) {
 	}
 	magic_setflags(conf->magic, magic_flags);
 	conf->resultBuf = TQString(magic_file(conf->magic, fileName));
+printf("[RAJA DEBUG 340.0] fileName: '%s' conf->resultBuf: '%s'\n\r", fileName.data(), conf->resultBuf.ascii()); fflush(stdout);
 	conf->resultBuf = fixupMagicOutput(conf->resultBuf);
 
 	if ( conf->utimeConf && conf->utimeConf->restoreAccessTime( fn ) ) {
@@ -253,6 +258,7 @@ bool KMimeMagic::mergeConfig(const TQString & _configfile) {
 	TQString merged_databases = conf->databases.join(":");
 	int magicvers = magic_version();
 	if ((magicvers < 512) || (magicvers >= 518)) {
+printf("[RAJA DEBUG 342.1] Loading database(s) '%s'\n\r", merged_databases.ascii()); fflush(stdout);
 		if (magic_load(conf->magic, merged_databases.latin1()) == 0) {
 			return true;
 		}
@@ -261,7 +267,7 @@ bool KMimeMagic::mergeConfig(const TQString & _configfile) {
 		}
 	}
 	else {
-		kdWarning(7018) << "KMimeMagic::mergeConfig disabled due to buggy libmagic version " << magicvers << endl;
+		kdWarning(7018) << k_funcinfo << "KMimeMagic::mergeConfig disabled due to buggy libmagic version " << magicvers << endl;
 		return false;
 	}
 }
@@ -289,6 +295,7 @@ KMimeMagicResult *KMimeMagic::findBufferType(const TQByteArray &array) {
 		}
 		magic_setflags(conf->magic, magic_flags);
 		conf->resultBuf = TQString(magic_buffer(conf->magic, array.data(), nbytes));
+printf("[RAJA DEBUG 340.1] conf->resultBuf: '%s'\n\r", conf->resultBuf.ascii()); fflush(stdout);
 		conf->resultBuf = fixupMagicOutput(conf->resultBuf);
 	}
 	/* if we have any results, put them in the request structure */

tdenewstuff/downloaddialog.cpp

@@ -46,6 +46,7 @@
 #include <tqtimer.h> // hack
 
 #define OPENDESKTOP_REDIRECT_URL "opendesktop.org/content/download.php?content="
+#define OPENDESKTOP_REDIRECT_TEXT "If the download does not start in 3 seconds:</span><span class=\"defaulttext\">&nbsp;<a href=\""
 
 using namespace KNS;
 
@@ -609,7 +610,7 @@ void DownloadDialog::slotInstallPhase2()
   }
   else
   {
-    m_s = new TDENewStuffGeneric(e->type(), this);
+    m_s = new TDENewStuffGeneric(m_filter, this);
     m_entry = e;
     KURL source = e->payload();
     KURL dest = KURL(m_s->downloadDestination(e));
@@ -650,6 +651,12 @@ void DownloadDialog::slotJobResult( TDEIO::Job *job )
       realURL = e->payload().protocol() + "://opendesktop.org" + realURL;
       e->setPayload(realURL);
     }
+    else if ((pos = mJobData.find(OPENDESKTOP_REDIRECT_TEXT)) > 0) {
+      pos = pos + strlen(OPENDESKTOP_REDIRECT_TEXT);
+      TQString realURL = mJobData.mid(pos);
+      realURL = realURL.mid(0, realURL.find("\">"));
+      e->setPayload(realURL);
+    }
   }
 
   slotInstallPhase2();

tdenewstuff/entry.cpp

@@ -343,6 +343,7 @@ void Entry::parseDomElement( const TQDomElement &element )
     }
     if ( e.tagName() == "score" ) setRating( e.text().toInt() );
     if ( e.tagName() == "downloads" ) setDownloads( e.text().toInt() );
+//     if ( e.tagName() == "typename" ) setType( e.text() );
   }
 }
 

tdenewstuff/knewstuffgeneric.cpp

@@ -29,6 +29,7 @@
 #include <tdeconfig.h>
 #include <kstandarddirs.h>
 #include <tdemessagebox.h>
+#include <kmimemagic.h>
 #include <ktar.h>
 
 #include "entry.h"
@@ -49,6 +50,18 @@ TDENewStuffGeneric::~TDENewStuffGeneric()
 
 bool TDENewStuffGeneric::install( const TQString &fileName )
 {
+  // Try to detect the most common cases where (usually adware) Web pages are downloaded
+  // instead of the desired file and abort
+  KMimeMagicResult *res = KMimeMagic::self()->findFileType( fileName );
+  if ( res->isValid() && res->accuracy() > 40 ) {
+    if (type().lower().contains("wallpaper")) {
+      if (!res->mimeType().startsWith("image/")) {
+        TQFile::remove(fileName);
+        return false;
+      }
+    }
+}
+
   kdDebug() << "TDENewStuffGeneric::install(): " << fileName << endl;
   TQStringList list, list2;