Fix for bug #40788.

2003-06-05  Jeffrey Stedfast  <fejj@ximian.com>

	Fix for bug #40788.

	* providers/pop3/camel-pop3-engine.c (camel_pop3_engine_new): Now
	takes a flags argument. Currently there is only 1 flag which can
	be used to disable Pop3 server extensions.
	(get_capabilities): Don't check for Pop3 server extensions if the
	DISABLE_EXTENSIONS flag is set on the engine.
	(camel_pop3_engine_iterate): If we get a response that is neither
	+OK nor -ERR, default to treating it like a -ERR.

	* providers/pop3/camel-pop3-store.c (connect_to_server): Check for
	the disable_extensions param.

	* providers/pop3/camel-pop3-provider.c: Define a checkbox to
	disable all POP3 extension support.

svn path=/trunk/; revision=21438

4 files changed, 38 insertions, 21 deletions

diff --git a/camel/providers/pop3/camel-pop3-engine.c b/camel/providers/pop3/camel-pop3-engine.c
index 762212388e..2186136f95 100644
--- a/camel/providers/pop3/camel-pop3-engine.c
+++ b/camel/providers/pop3/camel-pop3-engine.c
@@ -97,6 +97,7 @@ camel_pop3_engine_get_type (void)
 /**
  * camel_pop3_engine_new:
  * @source: source stream
+ * @flags: engine flags
  *
  * Returns a NULL stream.  A null stream is always at eof, and
  * always returns success for all reads and writes.
@@ -104,7 +105,7 @@ camel_pop3_engine_get_type (void)
  * Return value: the stream
  **/
 CamelPOP3Engine *
-camel_pop3_engine_new(CamelStream *source)
+camel_pop3_engine_new(CamelStream *source, guint32 flags)
 {
 	CamelPOP3Engine *pe;
 
@@ -112,7 +113,8 @@ camel_pop3_engine_new(CamelStream *source)
 
 	pe->stream = (CamelPOP3Stream *)camel_pop3_stream_new(source);
 	pe->state = CAMEL_POP3_ENGINE_AUTH;
-
+	pe->flags = flags;
+	
 	get_capabilities(pe, TRUE);
 
 	return pe;
@@ -213,21 +215,23 @@ get_capabilities(CamelPOP3Engine *pe, int read_greeting)
 		pe->auth = g_list_prepend(pe->auth, &camel_pop3_password_authtype);
 	}
 	
-	pc = camel_pop3_engine_command_new(pe, CAMEL_POP3_COMMAND_MULTI, cmd_capa, NULL, "CAPA\r\n");
-	while (camel_pop3_engine_iterate(pe, pc) > 0)
-		;
-	camel_pop3_engine_command_free(pe, pc);
-	
-	if (pe->state == CAMEL_POP3_ENGINE_TRANSACTION && !(pe->capa & CAMEL_POP3_CAP_UIDL)) {
-		/* check for UIDL support manually */
-		pc = camel_pop3_engine_command_new (pe, CAMEL_POP3_COMMAND_SIMPLE, NULL, NULL, "UIDL 1\r\n");
-		while (camel_pop3_engine_iterate (pe, pc) > 0)
+	if (!(pe->flags & CAMEL_POP3_ENGINE_DISABLE_EXTENSIONS)) {
+		pc = camel_pop3_engine_command_new(pe, CAMEL_POP3_COMMAND_MULTI, cmd_capa, NULL, "CAPA\r\n");
+		while (camel_pop3_engine_iterate(pe, pc) > 0)
 			;
+		camel_pop3_engine_command_free(pe, pc);
 		
-		if (pc->state == CAMEL_POP3_COMMAND_OK)
-			pe->capa |= CAMEL_POP3_CAP_UIDL;
-		
-		camel_pop3_engine_command_free (pe, pc);
+		if (pe->state == CAMEL_POP3_ENGINE_TRANSACTION && !(pe->capa & CAMEL_POP3_CAP_UIDL)) {
+			/* check for UIDL support manually */
+			pc = camel_pop3_engine_command_new (pe, CAMEL_POP3_COMMAND_SIMPLE, NULL, NULL, "UIDL 1\r\n");
+			while (camel_pop3_engine_iterate (pe, pc) > 0)
+				;
+			
+			if (pc->state == CAMEL_POP3_COMMAND_OK)
+				pe->capa |= CAMEL_POP3_CAP_UIDL;
+			
+			camel_pop3_engine_command_free (pe, pc);
+		}
 	}
 }
 
@@ -304,8 +308,8 @@ camel_pop3_engine_iterate(CamelPOP3Engine *pe, CamelPOP3Command *pcwait)
 	default:
 		/* what do we do now?  f'knows! */
 		g_warning("Bad server response: %s\n", p);
-		errno = EIO;
-		return -1;
+		pc->state = CAMEL_POP3_COMMAND_ERR;
+		break;
 	}
 
 	e_dlist_addtail(&pe->done, (EDListNode *)pc);
@@ -313,7 +317,7 @@ camel_pop3_engine_iterate(CamelPOP3Engine *pe, CamelPOP3Command *pcwait)
 
 	/* Set next command */
 	pe->current = (CamelPOP3Command *)e_dlist_remhead(&pe->active);
-
+	
 	/* check the queue for sending any we can now send also */
 	pw = (CamelPOP3Command *)pe->queue.head;
 	pn = pw->next;
diff --git a/camel/providers/pop3/camel-pop3-engine.h b/camel/providers/pop3/camel-pop3-engine.h
index caf6ca1d2a..3114980311 100644
--- a/camel/providers/pop3/camel-pop3-engine.h
+++ b/camel/providers/pop3/camel-pop3-engine.h
@@ -68,6 +68,11 @@ enum {
 	CAMEL_POP3_CAP_STLS = 1<<5
 };
 
+/* enable/disable flags for the engine itself */
+enum {
+	CAMEL_POP3_ENGINE_DISABLE_EXTENSIONS = 1<<0,
+};
+
 typedef void (*CamelPOP3CommandFunc)(CamelPOP3Engine *pe, CamelPOP3Stream *stream, void *data);
 
 struct _CamelPOP3Command {
@@ -86,7 +91,9 @@ struct _CamelPOP3Command {
 
 struct _CamelPOP3Engine {
 	CamelObject parent;
-
+	
+	guint32 flags;
+	
 	camel_pop3_engine_t state;
 
 	GList *auth;		/* authtypes supported */
@@ -114,7 +121,7 @@ struct _CamelPOP3EngineClass {
 
 CamelType		  camel_pop3_engine_get_type	(void);
 
-CamelPOP3Engine  *camel_pop3_engine_new		(CamelStream *source);
+CamelPOP3Engine  *camel_pop3_engine_new		(CamelStream *source, guint32 flags);
 
 void              camel_pop3_engine_reget_capabilities (CamelPOP3Engine *engine);
 
diff --git a/camel/providers/pop3/camel-pop3-provider.c b/camel/providers/pop3/camel-pop3-provider.c
index f01cf74253..1354470e69 100644
--- a/camel/providers/pop3/camel-pop3-provider.c
+++ b/camel/providers/pop3/camel-pop3-provider.c
@@ -42,6 +42,8 @@ CamelProviderConfEntry pop3_conf_entries[] = {
 	{ CAMEL_PROVIDER_CONF_CHECKSPIN, "delete_after", "UNIMPLEMENTED",
 	  N_("Delete after %s day(s)"), "0:1:7:365" },
 #endif
+	{ CAMEL_PROVIDER_CONF_CHECKBOX, "disable_extensions", NULL,
+	  N_("Disable support for all POP3 extensions"), "0" },
 	{ CAMEL_PROVIDER_CONF_SECTION_END },
 	{ CAMEL_PROVIDER_CONF_END }
 };
diff --git a/camel/providers/pop3/camel-pop3-store.c b/camel/providers/pop3/camel-pop3-store.c
index be4469f3eb..8b674e019e 100644
--- a/camel/providers/pop3/camel-pop3-store.c
+++ b/camel/providers/pop3/camel-pop3-store.c
@@ -151,6 +151,7 @@ connect_to_server (CamelService *service, int ssl_mode, int try_starttls, CamelE
 	CamelStream *tcp_stream;
 	CamelPOP3Command *pc;
 	struct hostent *h;
+	guint32 flags = 0;
 	int clean_quit;
 	int ret, port;
 	
@@ -197,7 +198,10 @@ connect_to_server (CamelService *service, int ssl_mode, int try_starttls, CamelE
 		return FALSE;
 	}
 	
-	store->engine = camel_pop3_engine_new (tcp_stream);
+	if (camel_url_get_param (service->url, "disable_extensions"))
+		flags |= CAMEL_POP3_ENGINE_DISABLE_EXTENSIONS;
+	
+	store->engine = camel_pop3_engine_new (tcp_stream, flags);
 	
 #ifdef HAVE_SSL
 	if (store->engine) {