Permit multiple HTTP errors in a row

1) Make sure that multiple bad playlists in a row don’t result in a
   temporary ban
2) Ignore songs skipped because the playlist timed out after pausing for
   too long

7 files changed, 23 insertions, 9 deletions

diff --git a/contrib/pianobar.1 b/contrib/pianobar.1
index d5f1ad7..5efaca1 100644
--- a/contrib/pianobar.1
+++ b/contrib/pianobar.1
@@ -295,6 +295,10 @@ Keep a history of the last n songs (5, by default). You can rate these songs.
 Icon for loved songs.
 
 .TP
+.B max_player_errors = 5
+Amount of song download errors in a row after pianobar stops playback.
+
+.TP
 .B partner_password = AC7IBG09A3DTSYM4R41UJWL07VLN8JI7
 
 .TP
diff --git a/src/main.c b/src/main.c
index b16eb97..c8bf5c6 100644
--- a/src/main.c
+++ b/src/main.c
@@ -300,8 +300,15 @@ static void BarMainPlayerCleanup (BarApp_t *app, pthread_t *playerThread) {
 	pthread_cond_destroy (&app->player.pauseCond);
 	pthread_mutex_destroy (&app->player.pauseMutex);
 
-	/* don't continue playback if thread reports error */
-	if (threadRet != (void *) PLAYER_RET_OK) {
+	if (threadRet == (void *) PLAYER_RET_OK) {
+		app->playerErrors = 0;
+	} else if (threadRet == (void *) PLAYER_RET_SOFTFAIL) {
+		++app->playerErrors;
+		if (app->playerErrors >= app->settings.maxPlayerErrors) {
+			/* don't continue playback if thread reports too many error */
+			app->curStation = NULL;
+		}
+	} else {
 		app->curStation = NULL;
 	}
 
diff --git a/src/main.h b/src/main.h
index 14d1368..04f5203 100644
--- a/src/main.h
+++ b/src/main.h
@@ -42,6 +42,7 @@ typedef struct {
 	PianoStation_t *curStation;
 	char doQuit;
 	BarReadlineFds_t input;
+	unsigned int playerErrors;
 } BarApp_t;
 
 #endif /* _MAIN_H */
diff --git a/src/player.c b/src/player.c
index 16c94dc..939b326 100644
--- a/src/player.c
+++ b/src/player.c
@@ -489,7 +489,7 @@ void *BarPlayerThread (void *data) {
 
 		default:
 			BarUiMsg (player->settings, MSG_ERR, "Unsupported audio format!\n");
-			ret = (void *) PLAYER_RET_ERR;
+			ret = (void *) PLAYER_RET_HARDFAIL;
 			goto cleanup;
 			break;
 	}
@@ -528,15 +528,14 @@ void *BarPlayerThread (void *data) {
 	}
 
 	if (player->aoError) {
-		ret = (void *) PLAYER_RET_ERR;
+		ret = (void *) PLAYER_RET_HARDFAIL;
 	}
 
 	/* Pandora sends broken audio url’s sometimes (“bad request”). ignore them. */
-	if (wRet != WAITRESS_RET_OK && wRet != WAITRESS_RET_CB_ABORT &&
-			wRet != WAITRESS_RET_BAD_REQUEST) {
+	if (wRet != WAITRESS_RET_OK && wRet != WAITRESS_RET_CB_ABORT) {
 		BarUiMsg (player->settings, MSG_ERR, "Cannot access audio file: %s\n",
 				WaitressErrorToStr (wRet));
-		ret = (void *) PLAYER_RET_ERR;
+		ret = (void *) PLAYER_RET_SOFTFAIL;
 	}
 
 cleanup:
diff --git a/src/player.h b/src/player.h
index d0eac22..d107e41 100644
--- a/src/player.h
+++ b/src/player.h
@@ -107,7 +107,7 @@ struct audioPlayer {
 	WaitressHandle_t waith;
 };
 
-enum {PLAYER_RET_OK = 0, PLAYER_RET_ERR = 1};
+enum {PLAYER_RET_OK = 0, PLAYER_RET_HARDFAIL = 1, PLAYER_RET_SOFTFAIL = 2};
 
 void *BarPlayerThread (void *data);
 unsigned int BarPlayerCalcScale (float);
diff --git a/src/settings.c b/src/settings.c
index e801de8..d90a7d7 100644
--- a/src/settings.c
+++ b/src/settings.c
@@ -125,6 +125,7 @@ void BarSettingsRead (BarSettings_t *settings) {
 	settings->autoselect = true;
 	settings->history = 5;
 	settings->volume = 0;
+	settings->maxPlayerErrors = 5;
 	settings->sortOrder = BAR_SORT_NAME_AZ;
 	settings->loveIcon = strdup (" <3");
 	settings->banIcon = strdup (" </3");
@@ -243,6 +244,8 @@ void BarSettingsRead (BarSettings_t *settings) {
 				settings->eventCmd = strdup (val);
 			} else if (streq ("history", key)) {
 				settings->history = atoi (val);
+			} else if (streq ("max_player_errors", key)) {
+				settings->maxPlayerErrors = atoi (val);
 			} else if (streq ("sort", key)) {
 				size_t i;
 				static const char *mapping[] = {"name_az",
diff --git a/src/settings.h b/src/settings.h
index 392ea58..819f8cb 100644
--- a/src/settings.h
+++ b/src/settings.h
@@ -84,7 +84,7 @@ typedef struct {
 
 typedef struct {
 	bool autoselect;
-	unsigned int history;
+	unsigned int history, maxPlayerErrors;
 	int volume;
 	BarStationSorting_t sortOrder;
 	PianoAudioQuality_t audioQuality;