valid Core plugins' processing during dynamic load/unload

git-svn-id: http://svn.miranda-ng.org/main/trunk@789 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c

3 files changed, 66 insertions, 61 deletions

diff --git a/src/modules/plugins/newplugins.cpp b/src/modules/plugins/newplugins.cpp
index 7bbcc57411..16606ff990 100644
--- a/src/modules/plugins/newplugins.cpp
+++ b/src/modules/plugins/newplugins.cpp
@@ -13,12 +13,12 @@ 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

+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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

 */

 #include "..\..\core\commonheaders.h"

 #include "plugins.h"

@@ -34,8 +34,8 @@ LIST<pluginEntry> pluginList(10, sttComparePluginsByName);
 #define MAX_MIR_VER ULONG_MAX

 

 struct PluginUUIDList {

-    MUUID uuid;

-    DWORD maxVersion;

+	MUUID uuid;

+	DWORD maxVersion;

 }

 static const pluginBannedList[] = 

 {

@@ -176,9 +176,9 @@ static int isPluginBanned(MUUID u1, DWORD dwVersion)
 }

 

 // returns true if the API exports were good, otherwise, passed in data is returned

-#define CHECKAPI_NONE 	 0

-#define CHECKAPI_DB 	 1

-#define CHECKAPI_CLIST   2

+#define CHECKAPI_NONE  0

+#define CHECKAPI_DB    1

+#define CHECKAPI_CLIST 2

 

 /*

  * historyeditor added by nightwish - plugin is problematic and can ruin database as it does not understand UTF-8 message

@@ -213,7 +213,7 @@ static int checkPI(BASIC_PLUGIN_INFO* bpi, PLUGININFOEX* pi)
 	if ( !validInterfaceList(bpi->Interfaces) || isPluginBanned(pi->uuid, pi->version))

 		return FALSE;

 

-	if (pi->shortName == NULL || pi->description == NULL || pi->author == NULL  ||

+	if (pi->shortName == NULL || pi->description == NULL || pi->author == NULL ||

 		  pi->authorEmail == NULL || pi->copyright == NULL || pi->homepage == NULL)

 		return FALSE;

 

@@ -332,9 +332,10 @@ int Plugin_UnloadDyn(pluginEntry* p)
 	}

 			

 	// release default plugin

-	for (int i=0; i < SIZEOF(pluginDefault); i++)

-		if (pluginDefault[i].pImpl == p)

-			pluginDefault[i].pImpl = NULL;

+	if ( !(p->pclass & PCLASS_CORE))

+		for (int i=0; i < SIZEOF(pluginDefault); i++)

+			if (pluginDefault[i].pImpl == p)

+				LoadCorePlugin( pluginDefault[i] );

 

 	Plugin_Uninit(p);

 	return TRUE;

@@ -529,12 +530,13 @@ int isPluginOnWhiteList(const TCHAR* pluginname)
 	return rc == 0;

 }

 

-bool TryLoadPlugin(pluginEntry *p, TCHAR* dir, bool bDynamic)

+bool TryLoadPlugin(pluginEntry *p, bool bDynamic)

 {

 	TCHAR exe[MAX_PATH];

 	GetModuleFileName(NULL, exe, SIZEOF(exe));

 	TCHAR* slice = _tcsrchr(exe, '\\');

-	if (slice) *slice = 0;

+	if (slice)

+		*slice = 0;

 

 	CharLower(p->pluginname);

 	if ( !(p->pclass & (PCLASS_LOADED | PCLASS_DB | PCLASS_CLIST))) {

@@ -542,40 +544,40 @@ bool TryLoadPlugin(pluginEntry *p, TCHAR* dir, bool bDynamic)
 			return false;

 

 		BASIC_PLUGIN_INFO bpi;

-		mir_sntprintf(slice, &exe[SIZEOF(exe)] - slice, _T("\\%s\\%s"), dir, p->pluginname);

-		if ( !checkAPI(exe, &bpi, mirandaVersion, CHECKAPI_NONE))

+		mir_sntprintf(slice, &exe[SIZEOF(exe)] - slice, _T("\\%s\\%s"), (p->pclass & PCLASS_CORE) ? _T("Core") : _T("Plugins"), p->pluginname);

+		if ( !checkAPI(exe, &bpi, mirandaVersion, CHECKAPI_NONE)) {

 			p->pclass |= PCLASS_FAILED;

-		else {

-			p->bpi = bpi;

-			p->pclass |= PCLASS_OK | PCLASS_BASICAPI;

-

-			if (p->bpi.Interfaces) {

-				MUUID *piface = bpi.Interfaces();

-				for (int i=0; !equalUUID(miid_last, piface[i]); i++) {

-					int idx = getDefaultPluginIdx( piface[i] );

-					if (idx != -1 && pluginDefault[idx].pImpl) {

-						if ( !bDynamic) {

-							SetPluginOnWhiteList(p->pluginname, 0);

-							return false;

-						}

+			return false;

+		}

+		

+		p->bpi = bpi;

+		p->pclass |= PCLASS_OK | PCLASS_BASICAPI;

+

+		if (p->bpi.Interfaces) {

+			MUUID *piface = bpi.Interfaces();

+			for (int i=0; !equalUUID(miid_last, piface[i]); i++) {

+				int idx = getDefaultPluginIdx( piface[i] );

+				if (idx != -1 && pluginDefault[idx].pImpl) {

+					if ( !bDynamic) {

+						SetPluginOnWhiteList(p->pluginname, 0);

+						return false;

+					}

+					if ( !(p->pclass & PCLASS_CORE)) {

 						Plugin_UnloadDyn(pluginDefault[idx].pImpl);

 						pluginDefault[idx].pImpl = NULL;

-					}

-				}

-			}

+		}	}	}	}

 

-			RegisterModule(p->bpi.hInst);

-			if (bpi.Load() != 0)

-				return false;

-

-			p->pclass |= PCLASS_LOADED;

-			if (p->bpi.Interfaces) {

-				MUUID *piface = bpi.Interfaces();

-				for (int i=0; !equalUUID(miid_last, piface[i]); i++) {

-					int idx = getDefaultPluginIdx( piface[i] );

-					if (idx != -1)

-						pluginDefault[idx].pImpl = p;

-				}

+		RegisterModule(p->bpi.hInst);

+		if (bpi.Load() != 0)

+			return false;

+

+		p->pclass |= PCLASS_LOADED;

+		if (p->bpi.Interfaces) {

+			MUUID *piface = bpi.Interfaces();

+			for (int i=0; !equalUUID(miid_last, piface[i]); i++) {

+				int idx = getDefaultPluginIdx( piface[i] );

+				if (idx != -1)

+					pluginDefault[idx].pImpl = p;

 			}

 		}

 	}

@@ -597,10 +599,13 @@ bool LoadCorePlugin(MuuidReplacement& mr)
 	if (pPlug->pclass & PCLASS_FAILED) {

 LBL_Error:

 		Plugin_UnloadDyn(pPlug);

+		mr.pImpl = NULL;

 		return FALSE;

 	}

 

-	if ( !TryLoadPlugin(pPlug, _T("Core"), true))

+	pPlug->pclass |= PCLASS_CORE;

+

+	if ( !TryLoadPlugin(pPlug, true))

 		goto LBL_Error;

 

 	if (CallPluginEventHook(pPlug->bpi.hInst, hModulesLoadedEvent, 0, 0) != 0)

@@ -740,13 +745,12 @@ int LoadNewPluginsModule(void)
 	askAboutIgnoredPlugins = (UINT) GetPrivateProfileInt(_T("PluginLoader"), _T("AskAboutIgnoredPlugins"), 0, mirandabootini);

 

 	// if Crash Dumper is present, load it to provide Crash Reports

-	if (pluginList_crshdmp != NULL && isPluginOnWhiteList(pluginList_crshdmp->pluginname))

-    {

+	if (pluginList_crshdmp != NULL && isPluginOnWhiteList(pluginList_crshdmp->pluginname)) {

 		if (pluginList_crshdmp->bpi.Load() == 0)

 			pluginList_crshdmp->pclass |= PCLASS_LOADED | PCLASS_LAST;

 		else

 			Plugin_Uninit(pluginList_crshdmp);

-    }

+	}

 

 	// if freeimage is present, load it to provide the basic core functions

 	if (pluginList_freeimg != NULL) {

@@ -784,7 +788,7 @@ int LoadNewPluginsModule(void)
 

 	for (i=0; i < pluginList.getCount(); i++) {

 		p = pluginList[i];

-		if ( !TryLoadPlugin(p, _T("Plugins"), false)) {

+		if ( !TryLoadPlugin(p, false)) {

 			Plugin_Uninit(p);

 			i--;

 		}

@@ -844,7 +848,7 @@ void UnloadNewPluginsModule(void)
 			Plugin_Uninit(p);

 	}

 

-    if (pluginList_crshdmp)

+	if (pluginList_crshdmp)

 		Plugin_Uninit(pluginList_crshdmp);

 

 	// unload the DB

diff --git a/src/modules/plugins/pluginopts.cpp b/src/modules/plugins/pluginopts.cpp
index 15f9219192..4bd86c69c7 100644
--- a/src/modules/plugins/pluginopts.cpp
+++ b/src/modules/plugins/pluginopts.cpp
@@ -171,7 +171,7 @@ LBL_Error:
 		return FALSE;

 	}

 

-	if ( !TryLoadPlugin(pPlug, _T("Plugins"), true))

+	if ( !TryLoadPlugin(pPlug, true))

 		goto LBL_Error;

 

 	if (CallPluginEventHook(pPlug->bpi.hInst, hModulesLoadedEvent, 0, 0) != 0)

@@ -425,4 +425,4 @@ void UnloadPluginOptions()
 {

 	DestroyHookableEvent(hevLoadModule);

 	DestroyHookableEvent(hevUnloadModule);

-}
\ No newline at end of file
+}

diff --git a/src/modules/plugins/plugins.h b/src/modules/plugins/plugins.h
index 4dcf76f439..6cfa8595c7 100644
--- a/src/modules/plugins/plugins.h
+++ b/src/modules/plugins/plugins.h
@@ -34,15 +34,16 @@ struct BASIC_PLUGIN_INFO
 	DATABASELINK * dblink;		 // only valid during module being in memory

 };

 

-#define PCLASS_FAILED	 0x1  	// not a valid plugin, or API is invalid, pluginname is valid

-#define PCLASS_BASICAPI  0x2  	// has Load, Unload, MirandaPluginInfo() -> PLUGININFO seems valid, this dll is in memory.

-#define PCLASS_DB	 	 0x4    // has DatabasePluginInfo() and is valid as can be, and PCLASS_BASICAPI has to be set too

-#define PCLASS_LAST		 0x8    // this plugin should be unloaded after everything else

-#define PCLASS_OK		 0x10   // plugin should be loaded, if DB means nothing

-#define PCLASS_LOADED	 0x20   // Load(void) has been called, Unload() should be called.

-#define PCLASS_STOPPED   0x40 	// wasn't loaded cos plugin name not on white list

-#define PCLASS_CLIST 	 0x80   // a CList implementation

-#define PCLASS_SERVICE 	 0x100  // has Service Mode implementation

+#define PCLASS_FAILED     0x1   // not a valid plugin, or API is invalid, pluginname is valid

+#define PCLASS_BASICAPI   0x2   // has Load, Unload, MirandaPluginInfo() -> PLUGININFO seems valid, this dll is in memory.

+#define PCLASS_DB         0x4   // has DatabasePluginInfo() and is valid as can be, and PCLASS_BASICAPI has to be set too

+#define PCLASS_LAST       0x8   // this plugin should be unloaded after everything else

+#define PCLASS_OK        0x10   // plugin should be loaded, if DB means nothing

+#define PCLASS_LOADED    0x20   // Load(void) has been called, Unload() should be called.

+#define PCLASS_STOPPED   0x40   // wasn't loaded cos plugin name not on white list

+#define PCLASS_CLIST     0x80   // a CList implementation

+#define PCLASS_SERVICE  0x100   // has Service Mode implementation

+#define PCLASS_CORE     0x200   // a plugin from the /Core directory

 

 struct pluginEntry

 {

@@ -70,7 +71,7 @@ int checkAPI(TCHAR* plugin, BASIC_PLUGIN_INFO* bpi, DWORD mirandaVersion, int ch
 

 pluginEntry* OpenPlugin(TCHAR *tszFileName, TCHAR *dir, TCHAR *path);

 

-bool TryLoadPlugin(pluginEntry *p, TCHAR *dir, bool bDynamic);

+bool TryLoadPlugin(pluginEntry *p, bool bDynamic);

 void Plugin_Uninit(pluginEntry* p);

 int  Plugin_UnloadDyn(pluginEntry* p);