Fixed useless 404 error when a remote preview has no BGM

make audio safer

README.md

@@ -1,6 +1,6 @@
 ![# Anemone3DS](https://github.com/astronautlevel2/Anemone3DS/blob/master/meta/banner.png)
 
-A Theme and Splashscreen Manager for the Nintendo 3DS, written in C.\
+A Theme and Splashscreen Manager for the Nintendo 3DS, written in C.
 
 # Dependencies
  * devkitARM, which can be installed following the instructions [here](https://devkitpro.org/wiki/Getting_Started).

include/music.h

@@ -46,9 +46,10 @@ typedef struct {
     u32 filesize;
     
     volatile bool stop;
-    Handle finished;
+    Thread playing_thread;
 } audio_s;
 
 void play_audio(audio_s *);
+void stop_audio(audio_s**);
 
 #endif

include/urls.h

@@ -0,0 +1,88 @@
+/*
+*   This file is part of Anemone3DS
+*   Copyright (C) 2016-2020 Contributors in CONTRIBUTORS.md
+*
+*   This program is free software: you can redistribute it and/or modify
+*   it under the terms of the GNU General Public License as published by
+*   the Free Software Foundation, either version 3 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
+*   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, see <http://www.gnu.org/licenses/>.
+*
+*   Additional Terms 7.b and 7.c of GPLv3 apply to this file:
+*       * Requiring preservation of specified reasonable legal notices or
+*         author attributions in that material or in the Appropriate Legal
+*         Notices displayed by works containing it.
+*       * Prohibiting misrepresentation of the origin of that material,
+*         or requiring that modified versions of such material be marked in
+*         reasonable ways as different from the original version.
+*/
+
+static char from_hex(char c)
+{
+    return isdigit(c) ? c - '0' : tolower(c) - 'a' + 10;
+}
+
+static char to_hex(char code)
+{
+    static char hex[] = "0123456789abcdef";
+    return hex[code & 15];
+}
+
+// ensure caller frees
+char * url_escape(char * url)
+{
+    char * ptr = url;
+    char * buf = malloc(3 * strlen(url) + 1);
+    char * ptr_buf = buf;
+
+    while (*ptr)
+    {
+        if (isalnum((int)*ptr) || strchr("-_.~", *ptr))
+            *ptr_buf++ = *ptr;
+        else if (*ptr == ' ')
+            *ptr_buf++ = '+';
+        else
+        {
+            *ptr_buf++ = '%';
+            *ptr_buf++ = to_hex(*ptr >> 4);
+            *ptr_buf++ = to_hex(*ptr & 15);
+        }
+        ptr++;
+    }
+    *ptr_buf = '\0';
+    return buf;
+}
+
+// ensure caller frees
+char * url_unescape(char * url)
+{
+    char * ptr = url;
+    char * buf = malloc(strlen(url) + 1);
+    char * ptr_buf = buf;
+
+    while (*ptr)
+    {
+        if (*ptr == '%')
+        {
+            if (ptr[1] && ptr[2])
+            {
+                *ptr_buf++ = from_hex(ptr[1]) << 4 | from_hex(ptr[2]);
+                ptr += 2;
+            }
+        }
+        else if (*ptr == '+')
+            *ptr_buf++ = ' ';
+        else
+            *ptr_buf++ = *ptr;
+        ptr++;
+    }
+    *ptr_buf = '\0';
+    return buf;
+}

source/fs.c

@@ -377,7 +377,7 @@ renamed:
     sprintf(path_to_file, "%s%s", main_paths[mode], filename);
 
     // filter out characters illegal in FAT32 filenames
-    char * curr_filename = strrchr(path_to_file, '/') + 1;
+    char * curr_filename = path_to_file + strlen(main_paths[mode]);
     char * illegal_char = curr_filename;
     while ((illegal_char = strpbrk(illegal_char, ILLEGAL_CHARS)))
     {

source/loading.c

@@ -608,7 +608,6 @@ Result load_audio(Entry_s entry, audio_s *audio)
     }
 
     audio->mix[0] = audio->mix[1] = 1.0f; // Determines volume for the 12 (?) different outputs. See http://smealum.github.io/ctrulib/channel_8h.html#a30eb26f1972cc3ec28370263796c0444
-    svcCreateEvent(&audio->finished, RESET_STICKY);
 
     ndspChnSetInterp(0, NDSP_INTERP_LINEAR); 
     ndspChnSetMix(0, audio->mix); // See mix comment above

source/main.c

@@ -37,7 +37,7 @@
 
 bool quit = false;
 bool dspfirm = false;
-audio_s * audio = NULL;
+static audio_s * audio = NULL;
 static bool homebrew = false;
 static bool installed_themes = false;
 
@@ -109,6 +109,12 @@ static void stop_install_check(void)
     {
         installCheckThreads_arg[i].run_thread = false;
     }
+    for(int i = 0; i < MODE_AMOUNT; i++)
+    {
+        threadJoin(installCheckThreads[i], U64_MAX);
+        threadFree(installCheckThreads[i]);
+        installCheckThreads[i] = NULL;
+    }
 }
 
 static void exit_thread(void)
@@ -121,6 +127,7 @@ static void exit_thread(void)
         svcWaitSynchronization(update_icons_mutex, U64_MAX);
         threadJoin(iconLoadingThread, U64_MAX);
         threadFree(iconLoadingThread);
+        iconLoadingThread = NULL;
     }
 }
 
@@ -138,6 +145,7 @@ static void free_icons(Entry_List_s * list)
         free(list->icons[i]);
     }
     free(list->icons);
+    list->icons = NULL;
 }
 
 void free_lists(void)
@@ -157,8 +165,7 @@ void exit_function(bool power_pressed)
 {
     if(audio)
     {
-        audio->stop = true;
+        stop_audio(&audio);
-        svcWaitSynchronization(audio->finished, U64_MAX);
     }
     free_lists();
     svcCloseHandle(update_icons_mutex);
@@ -230,7 +237,7 @@ static void load_lists(Entry_List_s * lists)
 
             if(install_check_function != NULL)
             {
-                installCheckThreads[i] = threadCreate(install_check_function, current_arg, __stacksize__, 0x3f, -2, true);
+                installCheckThreads[i] = threadCreate(install_check_function, current_arg, __stacksize__, 0x3f, -2, false);
                 svcSleepThread(1e8);
             }
         }
@@ -504,9 +511,7 @@ int main(void)
                     preview_mode = false;
                     if(current_mode == MODE_THEMES && audio)
                     {
-                        audio->stop = true;
+                        stop_audio(&audio);
-                        svcWaitSynchronization(audio->finished, U64_MAX);
-                        audio = NULL;
                     }
                 }
                 continue;
@@ -516,9 +521,7 @@ int main(void)
                 preview_mode = false;
                 if(current_mode == MODE_THEMES && audio)
                 {
-                    audio->stop = true;
+                    stop_audio(&audio);
-                    svcWaitSynchronization(audio->finished, U64_MAX);
-                    audio = NULL;
                 }
                 continue;
             }

source/music.c

@@ -69,17 +69,26 @@ void thread_audio(void* data) {
     while(!audio->stop) {
         update_audio(audio);
     }
-    free(audio->filebuf);
+    ndspChnWaveBufClear(0);
+    ndspChnReset(0);
     ov_clear(&audio->vf);
+    free(audio->filebuf);
     linearFree((void*)audio->wave_buf[0].data_vaddr);
     linearFree((void*)audio->wave_buf[1].data_vaddr);
-    while (audio->wave_buf[0].status != NDSP_WBUF_DONE || audio->wave_buf[1].status != NDSP_WBUF_DONE) svcSleepThread(1e7);
-    svcSignalEvent(audio->finished);
-    svcSleepThread(1e8);
-    svcCloseHandle(audio->finished);
-    free(audio);
 }
 
 void play_audio(audio_s *audio) {
-    threadCreate(thread_audio, audio, 0x1000, 0x3F, 1, true);
+    audio->playing_thread = threadCreate(thread_audio, audio, 0x1000, 0x3F, 1, false);
+}
+
+void stop_audio(audio_s** audio_ptr) {
+    audio_s* audio = *audio_ptr;
+    if(audio->playing_thread)
+    {
+        audio->stop = true;
+        threadJoin(audio->playing_thread, U64_MAX);
+        threadFree(audio->playing_thread);
+    }
+    free(audio);
+    *audio_ptr = NULL;
 }

source/remote.c

@@ -31,6 +31,11 @@
 #include "fs.h"
 #include "unicode.h"
 #include "music.h"
+#include "urls.h"
+
+// forward declaration of special case used only here
+// TODO: replace this travesty with a proper handler
+static Result http_get_with_not_found_flag(const char * url, char ** filename, char ** buf, u32 * size, InstallType install_type, const char * acceptable_mime_types, bool not_found_is_error);
 
 static Instructions_s browser_instructions[MODE_AMOUNT] = {
     {
@@ -326,10 +331,13 @@ static void load_remote_bgm(Entry_s * entry)
 
         draw_install(INSTALL_LOADING_REMOTE_BGM);
 
-        Result res = http_get(bgm_url, NULL, &bgm_ogg, &bgm_size, INSTALL_LOADING_REMOTE_BGM, "application/ogg, audio/ogg");
+        Result res = http_get_with_not_found_flag(bgm_url, NULL, &bgm_ogg, &bgm_size, INSTALL_LOADING_REMOTE_BGM, "application/ogg, audio/ogg", false);
         free(bgm_url);
         if (R_FAILED(res))
             return;
+        // if bgm doesn't exist on the server
+        if (R_SUMMARY(res) == RS_NOTFOUND && R_MODULE(res) == RM_FILE_SERVER)
+            return;
 
         u16 path[0x107] = { 0 };
         strucat(path, entry->path);
@@ -436,18 +444,11 @@ static void search_menu(Entry_List_s * list)
     if (button == SWKBD_BUTTON_CONFIRM)
     {
         free(list->tp_search);
-        for (unsigned int i = 0; i < strlen(search); i++)
+        list->tp_search = url_escape(search);
-        {
+        DEBUG("Search escaped: %s -> %s\n", search, list->tp_search);
-            if (search[i] == ' ')
-                search[i] = '+';
-        }
-        list->tp_search = search;
         load_remote_list(list, 1, list->mode, false);
     }
-    else
-    {
     free(search);
-    }
 }
 
 static void change_selected(Entry_List_s * list, int change_value)
@@ -489,7 +490,7 @@ bool themeplaza_browser(EntryMode mode)
 
     bool extra_mode = false;
 
-    while (aptMainLoop())
+    while (aptMainLoop() && !quit)
     {
         if (current_list->entries == NULL)
             break;
@@ -517,12 +518,6 @@ bool themeplaza_browser(EntryMode mode)
         exit:
             quit = true;
             downloaded = false;
-            if (audio)
-            {
-                audio->stop = true;
-                svcWaitSynchronization(audio->finished, U64_MAX);
-                audio = NULL;
-            }
             break;
         }
 
@@ -581,9 +576,7 @@ bool themeplaza_browser(EntryMode mode)
                 preview_mode = false;
                 if (mode == MODE_THEMES && audio != NULL)
                 {
-                    audio->stop = true;
+                    stop_audio(&audio);
-                    svcWaitSynchronization(audio->finished, U64_MAX);
-                    audio = NULL;
                 }
             }
         }
@@ -594,9 +587,7 @@ bool themeplaza_browser(EntryMode mode)
                 preview_mode = false;
                 if (mode == MODE_THEMES && audio != NULL)
                 {
-                    audio->stop = true;
+                    stop_audio(&audio);
-                    svcWaitSynchronization(audio->finished, U64_MAX);
-                    audio = NULL;
                 }
             }
             else
@@ -662,9 +653,7 @@ bool themeplaza_browser(EntryMode mode)
                     preview_mode = false;
                     if (mode == MODE_THEMES && audio)
                     {
-                        audio->stop = true;
+                        stop_audio(&audio);
-                        svcWaitSynchronization(audio->finished, U64_MAX);
-                        audio = NULL;
                     }
                     continue;
                 }
@@ -731,6 +720,11 @@ bool themeplaza_browser(EntryMode mode)
         }
     }
 
+    if (audio)
+    {
+        stop_audio(&audio);
+    }
+
     free_preview(preview);
 
     free_icons(current_list);
@@ -770,7 +764,7 @@ typedef enum ParseResult
     HTTP_GATEWAY_TIMEOUT = 504,
 } ParseResult;
 
-static SwkbdCallbackResult fat32filter(void *user, const char **ppMessage, const char *text, size_t textlen)
+/*static SwkbdCallbackResult fat32filter(void *user, const char **ppMessage, const char *text, size_t textlen)
 {
     (void)textlen;
     (void)user;
@@ -782,7 +776,7 @@ static SwkbdCallbackResult fat32filter(void *user, const char **ppMessage, const
     }
 
     return SWKBD_CALLBACK_OK;
-}
+}*/
 
 // the good paths for this function return SUCCESS, ABORTED, or REDIRECT;
 // all other paths are failures
@@ -900,6 +894,11 @@ static ParseResult parse_header(struct header * out, httpcContext * context, con
  * call example: written = http_get("url", &filename, &buffer_to_download_to, &filesize, INSTALL_DOWNLOAD, "application/json");
  */
 Result http_get(const char * url, char ** filename, char ** buf, u32 * size, InstallType install_type, const char * acceptable_mime_types)
+{
+    return http_get_with_not_found_flag(url, filename, buf, size, install_type, acceptable_mime_types, true);
+}
+
+static Result http_get_with_not_found_flag(const char * url, char ** filename, char ** buf, u32 * size, InstallType install_type, const char * acceptable_mime_types, bool not_found_is_error)
 {
     Result ret;
     httpcContext context;
@@ -936,6 +935,7 @@ redirect: // goto here if we need to redirect
 
 #define ERROR_BUFFER_SIZE 0x80
     char err_buf[ERROR_BUFFER_SIZE];
+    Result res;
     ParseResult parse = parse_header(&_header, &context, acceptable_mime_types);
     switch (parse)
     {
@@ -981,7 +981,10 @@ redirect: // goto here if we need to redirect
         snprintf(err_buf, ERROR_BUFFER_SIZE, ZIP_NOT_AVAILABLE);
         goto error;
     case HTTP_NOT_FOUND:
-    case HTTP_GONE: ;
+        if (!not_found_is_error)
+            goto not_found_non_error;
+        [[fallthrough]];
+    case HTTP_GONE:
         const char * http_error = parse == HTTP_NOT_FOUND ? "404 Not Found" : "410 Gone";
         DEBUG("HTTP %s; URL: %s\n", http_error, url);
         if (strstr(url, THEMEPLAZA_BASE_URL) && parse == HTTP_NOT_FOUND)
@@ -1044,9 +1047,13 @@ redirect: // goto here if we need to redirect
     goto no_error;
 error:
     throw_error(err_buf, ERROR_LEVEL_WARNING);
-    Result res = httpcCloseContext(&context);
+    res = httpcCloseContext(&context);
     if (R_FAILED(res)) return res;
     return MAKERESULT(RL_TEMPORARY, RS_CANCELED, RM_APPLICATION, RD_NO_DATA);
+not_found_non_error:
+    res = httpcCloseContext(&context);
+    if (R_FAILED(res)) return res;
+    return MAKERESULT(RL_SUCCESS, RS_NOTFOUND, RM_FILE_SERVER, RD_NO_DATA);
 no_error:;
     u32 chunk_size;
     if (_header.file_size)

source/themes.c

@@ -505,6 +505,7 @@ Result dump_all_themes(void)
         res = AMAPP_ListDLCContentInfos(&readcount, MEDIATYPE_SD, titleId, count, 0, contentInfos);
         if(R_FAILED(res))
         {
+            free(contentInfos);
             break;
         }
 
@@ -551,6 +552,8 @@ Result dump_all_themes(void)
 
         FILE* fh = fopen(contentinfoarchive_path, "rb");
 
+        if(fh != NULL)
+        {
             for(u32 i = 0; i < readcount; ++i)
             {
                 if(i == 0) continue;
@@ -571,11 +574,6 @@ Result dump_all_themes(void)
                     if(R_FAILED(res))
                     {
                         DEBUG("theme open romfs error: %08lx\n", res);
-                    fclose(fh);
-                    free(contentInfos);
-                    romfsUnmount("meta");
-                    FSUSER_CloseArchive(ncch_archive);
-                    free(contentInfos);
                         break;
                     }
 
@@ -602,7 +600,7 @@ Result dump_all_themes(void)
                     {
                         fseek(theme_file, 0, SEEK_END);
                         long theme_size = ftell(theme_file);
-                    fseek(theme_file, 0, SEEK_CUR);
+                        fseek(theme_file, 0, SEEK_SET);
                         char* theme_data = malloc(theme_size);
                         fread(theme_data, 1, theme_size, theme_file);
                         fclose(theme_file);
@@ -619,7 +617,7 @@ Result dump_all_themes(void)
                     {
                         fseek(bgm_file, 0, SEEK_END);
                         long bgm_size = ftell(bgm_file);
-                    fseek(bgm_file, 0, SEEK_CUR);
+                        fseek(bgm_file, 0, SEEK_SET);
                         char* bgm_data = malloc(bgm_size);
                         fread(bgm_data, 1, bgm_size, bgm_file);
                         fclose(bgm_file);
@@ -646,6 +644,7 @@ Result dump_all_themes(void)
 
             fclose(fh);
             fh = NULL;
+        }
         free(contentInfos);
         contentInfos = NULL;