[core] fix switch_ivr_stop_displace_session when using relative file

- Added new function `SWITCH_DECLARE(const char *) switch_core_absolute_filepath(const char *file, switch_core_session_t *session)`

src/include/switch_core.h

@@ -1954,6 +1954,10 @@ SWITCH_DECLARE(void) switch_core_db_test_reactive(switch_core_db_t *db, char *te
 ///\ingroup core1
 ///\{
 
+
+SWITCH_DECLARE(const char *) switch_core_absolute_filepath(_In_ const char *file, _In_ switch_core_session_t *session);
+
+
 SWITCH_DECLARE(switch_status_t) switch_core_perform_file_open(const char *file, const char *func, int line,
 															  _In_ switch_file_handle_t *fh,
 															  _In_opt_z_ const char *file_path,

src/switch_core_file.c

@@ -62,6 +62,48 @@ static switch_status_t get_file_size(switch_file_handle_t *fh, const char **stri
 	return status;
 }
 
+
+SWITCH_DECLARE(const char *) switch_core_absolute_filepath(const char *file, switch_core_session_t *session)
+{
+	const char *prefix = NULL;
+	char *ext;
+	switch_channel_t *channel = switch_core_session_get_channel(session);
+
+	if (!strstr(file, SWITCH_URL_SEPARATOR)) {
+		if (!switch_is_file_path(file)) {
+			char *tfile = NULL;
+			char *e;
+
+			if (*file == '[') {
+				tfile = switch_core_session_strdup(session, file);
+				if ((e = switch_find_end_paren(tfile, '[', ']'))) {
+					*e = '\0';
+					file = e + 1;
+				} else {
+					tfile = NULL;
+				}
+			}
+
+			if (!(prefix = switch_channel_get_variable(channel, "sound_prefix"))) {
+				prefix = SWITCH_GLOBAL_dirs.base_dir;
+			}
+
+			file = switch_core_session_sprintf(session, "%s%s%s%s%s", switch_str_nil(tfile), tfile ? "]" : "", prefix, SWITCH_PATH_SEPARATOR, file);
+		}
+		if ((ext = strrchr(file, '.'))) {
+			ext++;
+		} else {
+			switch_codec_implementation_t read_impl = { 0 };
+			switch_core_session_get_read_impl(session, &read_impl);
+			ext = read_impl.iananame;
+			file = switch_core_session_sprintf(session, "%s.%s", file, ext);
+		}
+	}
+
+	return file;
+}
+
+
 SWITCH_DECLARE(switch_status_t) switch_core_perform_file_open(const char *file, const char *func, int line,
 															  switch_file_handle_t *fh,
 															  const char *file_path,

src/switch_ivr_async.c

@@ -989,6 +989,7 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_stop_displace_session(switch_core_ses
 	switch_media_bug_t *bug;
 	switch_channel_t *channel = switch_core_session_get_channel(session);
 
+	file = switch_core_absolute_filepath(file, session);
 	if ((bug = switch_channel_get_private(channel, file))) {
 		switch_channel_set_private(channel, file, NULL);
 		switch_core_media_bug_remove(session, &bug);
@@ -1004,8 +1005,6 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_displace_session(switch_core_session_
 	switch_media_bug_t *bug;
 	switch_status_t status;
 	time_t to = 0;
-	char *ext;
-	const char *prefix;
 	displace_helper_t *dh;
 	const char *p;
 	switch_bool_t hangup_on_error = SWITCH_FALSE;
@@ -1030,6 +1029,8 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_displace_session(switch_core_session_
 		return SWITCH_STATUS_FALSE;
 	}
 
+	file = switch_core_absolute_filepath(file, session);
+
 	if ((bug = switch_channel_get_private(channel, file))) {
 		switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "Only 1 of the same file per channel please!\n");
 		return SWITCH_STATUS_FALSE;
@@ -1039,35 +1040,6 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_displace_session(switch_core_session_
 		return SWITCH_STATUS_MEMERR;
 	}
 
-	if (!(prefix = switch_channel_get_variable(channel, "sound_prefix"))) {
-		prefix = SWITCH_GLOBAL_dirs.base_dir;
-	}
-
-	if (!strstr(file, SWITCH_URL_SEPARATOR)) {
-		if (!switch_is_file_path(file)) {
-			char *tfile = NULL;
-			char *e;
-
-			if (*file == '[') {
-				tfile = switch_core_session_strdup(session, file);
-				if ((e = switch_find_end_paren(tfile, '[', ']'))) {
-					*e = '\0';
-					file = e + 1;
-				} else {
-					tfile = NULL;
-				}
-			}
-
-			file = switch_core_session_sprintf(session, "%s%s%s%s%s", switch_str_nil(tfile), tfile ? "]" : "", prefix, SWITCH_PATH_SEPARATOR, file);
-		}
-		if ((ext = strrchr(file, '.'))) {
-			ext++;
-		} else {
-			ext = read_impl.iananame;
-			file = switch_core_session_sprintf(session, "%s.%s", file, ext);
-		}
-	}
-
 	dh->fh.channels = read_impl.number_of_channels;
 	dh->fh.samplerate = read_impl.actual_samples_per_second;
 	dh->file = switch_core_session_strdup(session, file);