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rockbox/apps/bookmark.c
William Wilgus f6c719d7ec replace strlcpy with strmemccpy 
replace applicable calls to strlcpy with calls to strmemccpy
which null terminates on truncation

in theory the strmemccpy calls should be slightly faster since they
don't traverse the rest of the source string on truncation
but I seriously doubt there is too much of that going on in the code base

Change-Id: Ia0251514e36a6242bbf3f03c5e0df123aba60ed2
2022-11-14 23:56:16 -05:00

1182 lines
38 KiB
C
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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
*
* Copyright (C)2003 by Benjamin Metzler
*
* 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 2
* of the License, or (at your option) any later version.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#include "config.h"
#include "action.h"
#include "audio.h"
#include "playlist.h"
#include "settings.h"
#include "tree.h"
#include "bookmark.h"
#include "system.h"
#include "icons.h"
#include "menu.h"
#include "lang.h"
#include "talk.h"
#include "misc.h"
#include "splash.h"
#include "yesno.h"
#include "list.h"
#include "plugin.h"
#include "file.h"
#include "pathfuncs.h"
#define MAX_BOOKMARKS 10
#define MAX_BOOKMARK_SIZE 350
#define RECENT_BOOKMARK_FILE ROCKBOX_DIR "/most-recent.bmark"
/* Used to buffer bookmarks while displaying the bookmark list. */
struct bookmark_list
{
const char* filename;
size_t buffer_size;
int start;
int count;
int total_count;
bool show_dont_resume;
bool reload;
bool show_playlist_name;
char* items[];
};
/* flags for optional bookmark tokens */
#define BM_PITCH 0x01
#define BM_SPEED 0x02
/* bookmark values */
static struct {
int resume_index;
unsigned long resume_offset;
int resume_seed;
long resume_time;
int repeat_mode;
bool shuffle;
/* optional values */
int pitch;
int speed;
} bm;
static bool add_bookmark(const char* bookmark_file_name, const char* bookmark,
bool most_recent);
static char* create_bookmark(void);
static bool delete_bookmark(const char* bookmark_file_name, int bookmark_id);
static void say_bookmark(const char* bookmark,
int bookmark_id, bool show_playlist_name);
static bool play_bookmark(const char* bookmark);
static bool generate_bookmark_file_name(const char *in);
static bool parse_bookmark(const char *bookmark, const bool get_filenames, const bool strip_dir);
static int buffer_bookmarks(struct bookmark_list* bookmarks, int first_line);
static const char* get_bookmark_info(int list_index,
void* data,
char *buffer,
size_t buffer_len);
static int select_bookmark(const char* bookmark_file_name, bool show_dont_resume, char** selected_bookmark);
static bool write_bookmark(bool create_bookmark_file, const char *bookmark);
static int get_bookmark_count(const char* bookmark_file_name);
#define TEMP_BUF_SIZE (MAX_PATH + 1)
static char global_temp_buffer[TEMP_BUF_SIZE];
/* File name created by generate_bookmark_file_name */
static char global_bookmark_file_name[MAX_PATH];
static char global_read_buffer[MAX_BOOKMARK_SIZE];
/* Bookmark created by create_bookmark*/
static char global_bookmark[MAX_BOOKMARK_SIZE];
/* Filename from parsed bookmark (can be made local where needed) */
static char global_filename[MAX_PATH];
/* ----------------------------------------------------------------------- */
/* This is an interface function from the context menu. */
/* Returns true on successful bookmark creation. */
/* ----------------------------------------------------------------------- */
bool bookmark_create_menu(void)
{
return write_bookmark(true, create_bookmark());
}
/* ----------------------------------------------------------------------- */
/* This function acts as the load interface from the context menu. */
/* This function determines the bookmark file name and then loads that file*/
/* for the user. The user can then select or delete previous bookmarks. */
/* This function returns BOOKMARK_SUCCESS on the selection of a track to */
/* resume, BOOKMARK_FAIL if the menu is exited without a selection and */
/* BOOKMARK_USB_CONNECTED if the menu is forced to exit due to a USB */
/* connection. */
/* ----------------------------------------------------------------------- */
int bookmark_load_menu(void)
{
char* bookmark;
int ret = BOOKMARK_FAIL;
push_current_activity(ACTIVITY_BOOKMARKSLIST);
char* name = playlist_get_name(NULL, global_temp_buffer,
sizeof(global_temp_buffer));
if (generate_bookmark_file_name(name))
{
ret = select_bookmark(global_bookmark_file_name, false, &bookmark);
if (bookmark != NULL)
{
ret = play_bookmark(bookmark) ? BOOKMARK_SUCCESS : BOOKMARK_FAIL;
}
}
pop_current_activity();
return ret;
}
/* ----------------------------------------------------------------------- */
/* Gives the user a list of the Most Recent Bookmarks. This is an */
/* interface function */
/* Returns true on the successful selection of a recent bookmark. */
/* ----------------------------------------------------------------------- */
bool bookmark_mrb_load()
{
char* bookmark;
bool ret = false;
push_current_activity(ACTIVITY_BOOKMARKSLIST);
select_bookmark(RECENT_BOOKMARK_FILE, false, &bookmark);
if (bookmark != NULL)
{
ret = play_bookmark(bookmark);
}
pop_current_activity();
return ret;
}
/* ----------------------------------------------------------------------- */
/* This function handles an autobookmark creation. This is an interface */
/* function. */
/* Returns true on successful bookmark creation. */
/* ----------------------------------------------------------------------- */
bool bookmark_autobookmark(bool prompt_ok)
{
char* bookmark;
bool update;
if (!bookmark_is_bookmarkable_state())
return false;
audio_pause(); /* first pause playback */
update = (global_settings.autoupdatebookmark && bookmark_exists());
bookmark = create_bookmark();
if (update)
return write_bookmark(true, bookmark);
switch (global_settings.autocreatebookmark)
{
case BOOKMARK_YES:
return write_bookmark(true, bookmark);
case BOOKMARK_NO:
return false;
case BOOKMARK_RECENT_ONLY_YES:
return write_bookmark(false, bookmark);
}
const char *lines[]={ID2P(LANG_AUTO_BOOKMARK_QUERY)};
const struct text_message message={lines, 1};
if(prompt_ok && gui_syncyesno_run(&message, NULL, NULL)==YESNO_YES)
{
if (global_settings.autocreatebookmark == BOOKMARK_RECENT_ONLY_ASK)
return write_bookmark(false, bookmark);
else
return write_bookmark(true, bookmark);
}
return false;
}
/* ----------------------------------------------------------------------- */
/* This function takes the current current resume information and writes */
/* that to the beginning of the bookmark file. */
/* This file will contain N number of bookmarks in the following format: */
/* resume_index*resume_offset*resume_seed*resume_first_index* */
/* resume_file*milliseconds*MP3 Title* */
/* Returns true on successful bookmark write. */
/* Returns false if any part of the bookmarking process fails. It is */
/* possible that a bookmark is successfully added to the most recent */
/* bookmark list but fails to be added to the bookmark file or vice versa. */
/* ------------------------------------------------------------------------*/
static bool write_bookmark(bool create_bookmark_file, const char *bookmark)
{
bool ret=true;
if (!bookmark)
{
ret = false; /* something didn't happen correctly, do nothing */
}
else
{
if (global_settings.usemrb)
ret = add_bookmark(RECENT_BOOKMARK_FILE, bookmark, true);
/* writing the bookmark */
if (create_bookmark_file)
{
char* name = playlist_get_name(NULL, global_temp_buffer,
sizeof(global_temp_buffer));
if (generate_bookmark_file_name(name))
{
ret = ret & add_bookmark(global_bookmark_file_name, bookmark, false);
}
else
{
ret = false; /* generating bookmark file failed */
}
}
}
splash(HZ, ret ? ID2P(LANG_BOOKMARK_CREATE_SUCCESS)
: ID2P(LANG_BOOKMARK_CREATE_FAILURE));
return ret;
}
/* Get the name of the playlist and the name of the track from a bookmark. */
/* Returns true iff both were extracted. */
static bool get_playlist_and_track(const char *bookmark, char **pl_start,
char **pl_end, char **track)
{
*pl_start = strchr(bookmark,'/');
if (!(*pl_start))
return false;
*pl_end = strrchr(bookmark,';');
*track = *pl_end + 1;
return true;
}
/* ----------------------------------------------------------------------- */
/* This function adds a bookmark to a file. */
/* Returns true on successful bookmark add. */
/* ------------------------------------------------------------------------*/
static bool add_bookmark(const char* bookmark_file_name, const char* bookmark,
bool most_recent)
{
int temp_bookmark_file = 0;
int bookmark_file = 0;
int bookmark_count = 0;
char *pl_start = NULL, *bm_pl_start;
char *pl_end = NULL, *bm_pl_end;
int pl_len = 0, bm_pl_len;
char *track = NULL, *bm_track;
bool comp_playlist = false;
bool comp_track = false;
bool equal;
/* Opening up a temp bookmark file */
snprintf(global_temp_buffer, sizeof(global_temp_buffer),
"%s.tmp", bookmark_file_name);
temp_bookmark_file = open(global_temp_buffer,
O_WRONLY | O_CREAT | O_TRUNC, 0666);
if (temp_bookmark_file < 0)
return false; /* can't open the temp file */
if (most_recent && ((global_settings.usemrb == BOOKMARK_ONE_PER_PLAYLIST)
|| (global_settings.usemrb == BOOKMARK_ONE_PER_TRACK)))
{
if (get_playlist_and_track(bookmark, &pl_start, &pl_end, &track))
{
comp_playlist = true;
pl_len = pl_end - pl_start;
if (global_settings.usemrb == BOOKMARK_ONE_PER_TRACK)
comp_track = true;
}
}
/* Writing the new bookmark to the begining of the temp file */
write(temp_bookmark_file, bookmark, strlen(bookmark));
write(temp_bookmark_file, "\n", 1);
bookmark_count++;
/* Reading in the previous bookmarks and writing them to the temp file */
bookmark_file = open(bookmark_file_name, O_RDONLY);
if (bookmark_file >= 0)
{
while (read_line(bookmark_file, global_read_buffer,
sizeof(global_read_buffer)) > 0)
{
/* The MRB has a max of MAX_BOOKMARKS in it */
/* This keeps it from getting too large */
if (most_recent && (bookmark_count >= MAX_BOOKMARKS))
break;
if (!parse_bookmark(global_read_buffer, false, false))
break;
equal = false;
if (comp_playlist)
{
if (get_playlist_and_track(global_read_buffer, &bm_pl_start,
&bm_pl_end, &bm_track))
{
bm_pl_len = bm_pl_end - bm_pl_start;
equal = (pl_len == bm_pl_len) && !strncmp(pl_start, bm_pl_start, pl_len);
if (equal && comp_track)
equal = !strcmp(track, bm_track);
}
}
if (!equal)
{
bookmark_count++;
write(temp_bookmark_file, global_read_buffer,
strlen(global_read_buffer));
write(temp_bookmark_file, "\n", 1);
}
}
close(bookmark_file);
}
close(temp_bookmark_file);
remove(bookmark_file_name);
rename(global_temp_buffer, bookmark_file_name);
return true;
}
/* GCC 7 and up complain about the snprintf in create_bookmark() when
compiled with -D_FORTIFY_SOURCE or -Wformat-truncation
This is a false positive, so disable it here only */
#if __GNUC__ >= 7
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wformat-truncation"
#endif
/* ----------------------------------------------------------------------- */
/* This function takes the system resume data and formats it into a valid */
/* bookmark. */
/* Returns not NULL on successful bookmark format. */
/* ----------------------------------------------------------------------- */
static char* create_bookmark()
{
int resume_index = 0;
char *file;
if (!bookmark_is_bookmarkable_state())
return NULL; /* something didn't happen correctly, do nothing */
/* grab the currently playing track */
struct mp3entry *id3 = audio_current_track();
if(!id3)
return NULL;
/* Get some basic resume information */
/* queue_resume and queue_resume_index are not used and can be ignored.*/
playlist_get_resume_info(&resume_index);
/* Get the currently playing file minus the path */
/* This is used when displaying the available bookmarks */
file = strrchr(id3->path,'/');
if(NULL == file)
return NULL;
/* create the bookmark */
playlist_get_name(NULL, global_temp_buffer, sizeof(global_temp_buffer));
if (global_temp_buffer[strlen(global_temp_buffer) - 1] != '/')
file = id3->path;
else file++;
snprintf(global_bookmark, sizeof(global_bookmark),
/* new optional bookmark token descriptors should be inserted
just before the "%s;%s" in this line... */
#if defined(HAVE_PITCHCONTROL)
">%d;%d;%ld;%d;%ld;%d;%d;%ld;%ld;%s;%s",
#else
">%d;%d;%ld;%d;%ld;%d;%d;%s;%s",
#endif
/* ... their flags should go here ... */
#if defined(HAVE_PITCHCONTROL)
BM_PITCH | BM_SPEED,
#else
0,
#endif
resume_index,
id3->offset,
playlist_get_seed(NULL),
id3->elapsed,
global_settings.repeat_mode,
global_settings.playlist_shuffle,
/* ...and their values should go here */
#if defined(HAVE_PITCHCONTROL)
(long)sound_get_pitch(),
(long)dsp_get_timestretch(),
#endif
/* more mandatory tokens */
global_temp_buffer,
file);
/* checking to see if the bookmark is valid */
if (parse_bookmark(global_bookmark, false, false))
return global_bookmark;
else
return NULL;
}
#if __GNUC__ >= 7
#pragma GCC diagnostic pop /* -Wformat-truncation */
#endif
/* ----------------------------------------------------------------------- */
/* This function will determine if an autoload is necessary. This is an */
/* interface function. */
/* Returns true on bookmark load or bookmark selection. */
/* ------------------------------------------------------------------------*/
bool bookmark_autoload(const char* file)
{
char* bookmark;
if(global_settings.autoloadbookmark == BOOKMARK_NO)
return false;
/*Checking to see if a bookmark file exists.*/
if(!generate_bookmark_file_name(file))
{
return false;
}
if(!file_exists(global_bookmark_file_name))
return false;
if(global_settings.autoloadbookmark == BOOKMARK_YES)
{
return bookmark_load(global_bookmark_file_name, true);
}
else
{
int ret = select_bookmark(global_bookmark_file_name, true, &bookmark);
if (bookmark != NULL)
{
if (!play_bookmark(bookmark))
{
/* Selected bookmark not found. */
splash(HZ*2, ID2P(LANG_NOTHING_TO_RESUME));
}
/* Act as if autoload was done even if it failed, since the
* user did make an active selection.
*/
return true;
}
return ret != BOOKMARK_SUCCESS;
}
}
/* ----------------------------------------------------------------------- */
/* This function loads the bookmark information into the resume memory. */
/* This is an interface function. */
/* Returns true on successful bookmark load. */
/* ------------------------------------------------------------------------*/
bool bookmark_load(const char* file, bool autoload)
{
int fd;
char* bookmark = NULL;
if(autoload)
{
fd = open(file, O_RDONLY);
if(fd >= 0)
{
if(read_line(fd, global_read_buffer, sizeof(global_read_buffer)) > 0)
bookmark=global_read_buffer;
close(fd);
}
}
else
{
/* This is not an auto-load, so list the bookmarks */
select_bookmark(file, false, &bookmark);
}
if (bookmark != NULL)
{
if (!play_bookmark(bookmark))
{
/* Selected bookmark not found. */
if (!autoload)
{
splash(HZ*2, ID2P(LANG_NOTHING_TO_RESUME));
}
return false;
}
}
return true;
}
static int get_bookmark_count(const char* bookmark_file_name)
{
int read_count = 0;
int file = open(bookmark_file_name, O_RDONLY);
if(file < 0)
return -1;
while(read_line(file, global_read_buffer, sizeof(global_read_buffer)) > 0)
{
read_count++;
}
close(file);
return read_count;
}
static int buffer_bookmarks(struct bookmark_list* bookmarks, int first_line)
{
char* dest = ((char*) bookmarks) + bookmarks->buffer_size - 1;
int read_count = 0;
int file = open(bookmarks->filename, O_RDONLY);
if (file < 0)
{
return -1;
}
if ((first_line != 0) && ((size_t) filesize(file) < bookmarks->buffer_size
- sizeof(*bookmarks) - (sizeof(char*) * bookmarks->total_count)))
{
/* Entire file fits in buffer */
first_line = 0;
}
bookmarks->start = first_line;
bookmarks->count = 0;
bookmarks->reload = false;
while(read_line(file, global_read_buffer, sizeof(global_read_buffer)) > 0)
{
read_count++;
if (read_count >= first_line)
{
dest -= strlen(global_read_buffer) + 1;
if (dest < ((char*) bookmarks) + sizeof(*bookmarks)
+ (sizeof(char*) * (bookmarks->count + 1)))
{
break;
}
strcpy(dest, global_read_buffer);
bookmarks->items[bookmarks->count] = dest;
bookmarks->count++;
}
}
close(file);
return bookmarks->start + bookmarks->count;
}
static const char* get_bookmark_info(int list_index,
void* data,
char *buffer,
size_t buffer_len)
{
struct bookmark_list* bookmarks = (struct bookmark_list*) data;
int index = list_index / 2;
if (bookmarks->show_dont_resume)
{
if (index == 0)
{
return list_index % 2 == 0
? (char*) str(LANG_BOOKMARK_DONT_RESUME) : " ";
}
index--;
}
if (bookmarks->reload || (index >= bookmarks->start + bookmarks->count)
|| (index < bookmarks->start))
{
int read_index = index;
/* Using count as a guide on how far to move could possibly fail
* sometimes. Use byte count if that is a problem?
*/
if (read_index != 0)
{
/* Move count * 3 / 4 items in the direction the user is moving,
* but don't go too close to the end.
*/
int offset = bookmarks->count;
int max = bookmarks->total_count - (bookmarks->count / 2);
if (read_index < bookmarks->start)
{
offset *= 3;
}
read_index = index - offset / 4;
if (read_index > max)
{
read_index = max;
}
if (read_index < 0)
{
read_index = 0;
}
}
if (buffer_bookmarks(bookmarks, read_index) <= index)
{
return "";
}
}
if (!parse_bookmark(bookmarks->items[index - bookmarks->start], true, true))
{
return list_index % 2 == 0 ? (char*) str(LANG_BOOKMARK_INVALID) : " ";
}
if (list_index % 2 == 0)
{
char *name;
char *format;
int len = strlen(global_temp_buffer);
if (bookmarks->show_playlist_name && len > 0)
{
name = global_temp_buffer;
len--;
if (name[len] != '/')
{
strrsplt(name, '.');
}
else if (len > 1)
{
name[len] = '\0';
}
if (len > 1)
{
name = strrsplt(name, '/');
}
format = "%s : %s";
}
else
{
name = global_filename;
format = "%s";
}
strrsplt(global_filename, '.');
snprintf(buffer, buffer_len, format, name, global_filename);
return buffer;
}
else
{
char time_buf[32];
format_time(time_buf, sizeof(time_buf), bm.resume_time);
snprintf(buffer, buffer_len, "%s, %d%s", time_buf, bm.resume_index + 1,
bm.shuffle ? (char*) str(LANG_BOOKMARK_SHUFFLE) : "");
return buffer;
}
}
static int bookmark_list_voice_cb(int list_index, void* data)
{
struct bookmark_list* bookmarks = (struct bookmark_list*) data;
int index = list_index / 2;
if (bookmarks->show_dont_resume)
{
if (index == 0)
return talk_id(LANG_BOOKMARK_DONT_RESUME, false);
index--;
}
say_bookmark(bookmarks->items[index - bookmarks->start], index,
bookmarks->show_playlist_name);
return 0;
}
/* ----------------------------------------------------------------------- */
/* This displays the bookmarks in a file and allows the user to */
/* select one to play. */
/* *selected_bookmark contains a non NULL value on successful bookmark */
/* selection. */
/* Returns BOOKMARK_SUCCESS on successful bookmark selection, BOOKMARK_FAIL*/
/* if no selection was made and BOOKMARK_USB_CONNECTED if the selection */
/* menu is forced to exit due to a USB connection. */
/* ------------------------------------------------------------------------*/
static int select_bookmark(const char* bookmark_file_name, bool show_dont_resume, char** selected_bookmark)
{
struct bookmark_list* bookmarks;
struct gui_synclist list;
int item = 0;
int action;
size_t size;
bool exit = false;
bool refresh = true;
int ret = BOOKMARK_FAIL;
bookmarks = plugin_get_buffer(&size);
bookmarks->buffer_size = size;
bookmarks->show_dont_resume = show_dont_resume;
bookmarks->filename = bookmark_file_name;
bookmarks->start = 0;
bookmarks->show_playlist_name
= strcmp(bookmark_file_name, RECENT_BOOKMARK_FILE) == 0;
gui_synclist_init(&list, &get_bookmark_info, (void*) bookmarks, false, 2, NULL);
if(global_settings.talk_menu)
gui_synclist_set_voice_callback(&list, bookmark_list_voice_cb);
gui_synclist_set_title(&list, str(LANG_BOOKMARK_SELECT_BOOKMARK),
Icon_Bookmark);
while (!exit)
{
if (refresh)
{
int count = get_bookmark_count(bookmark_file_name);
bookmarks->total_count = count;
if (bookmarks->total_count < 1)
{
/* No more bookmarks, delete file and exit */
splash(HZ, ID2P(LANG_BOOKMARK_LOAD_EMPTY));
remove(bookmark_file_name);
*selected_bookmark = NULL;
return BOOKMARK_FAIL;
}
if (bookmarks->show_dont_resume)
{
count++;
item++;
}
gui_synclist_set_nb_items(&list, count * 2);
if (item >= count)
{
/* Selected item has been deleted */
item = count - 1;
gui_synclist_select_item(&list, item * 2);
}
buffer_bookmarks(bookmarks, bookmarks->start);
gui_synclist_draw(&list);
cond_talk_ids_fq(VOICE_EXT_BMARK);
gui_synclist_speak_item(&list);
refresh = false;
}
list_do_action(CONTEXT_BOOKMARKSCREEN, HZ / 2, &list, &action);
item = gui_synclist_get_sel_pos(&list) / 2;
if (bookmarks->show_dont_resume)
{
item--;
}
if (action == ACTION_STD_CONTEXT)
{
MENUITEM_STRINGLIST(menu_items, ID2P(LANG_BOOKMARK_CONTEXT_MENU),
NULL, ID2P(LANG_BOOKMARK_CONTEXT_RESUME),
ID2P(LANG_BOOKMARK_CONTEXT_DELETE));
static const int menu_actions[] =
{
ACTION_STD_OK, ACTION_BMS_DELETE
};
int selection = do_menu(&menu_items, NULL, NULL, false);
refresh = true;
if (selection >= 0 && selection <=
(int) (sizeof(menu_actions) / sizeof(menu_actions[0])))
{
action = menu_actions[selection];
}
}
switch (action)
{
case ACTION_STD_OK:
if (item >= 0)
{
talk_shutup();
*selected_bookmark = bookmarks->items[item - bookmarks->start];
return BOOKMARK_SUCCESS;
}
exit = true;
ret = BOOKMARK_SUCCESS;
break;
case ACTION_TREE_WPS:
case ACTION_STD_CANCEL:
exit = true;
break;
case ACTION_BMS_DELETE:
if (item >= 0)
{
const char *lines[]={
ID2P(LANG_REALLY_DELETE)
};
const char *yes_lines[]={
ID2P(LANG_DELETING)
};
const struct text_message message={lines, 1};
const struct text_message yes_message={yes_lines, 1};
if(gui_syncyesno_run(&message, &yes_message, NULL)==YESNO_YES)
{
delete_bookmark(bookmark_file_name, item);
bookmarks->reload = true;
}
refresh = true;
}
break;
default:
if (default_event_handler(action) == SYS_USB_CONNECTED)
{
ret = BOOKMARK_USB_CONNECTED;
exit = true;
}
break;
}
}
talk_shutup();
*selected_bookmark = NULL;
return ret;
}
/* ----------------------------------------------------------------------- */
/* This function takes a location in a bookmark file and deletes that */
/* bookmark. */
/* Returns true on successful bookmark deletion. */
/* ------------------------------------------------------------------------*/
static bool delete_bookmark(const char* bookmark_file_name, int bookmark_id)
{
int temp_bookmark_file = 0;
int bookmark_file = 0;
int bookmark_count = 0;
/* Opening up a temp bookmark file */
snprintf(global_temp_buffer, sizeof(global_temp_buffer),
"%s.tmp", bookmark_file_name);
temp_bookmark_file = open(global_temp_buffer,
O_WRONLY | O_CREAT | O_TRUNC, 0666);
if (temp_bookmark_file < 0)
return false; /* can't open the temp file */
/* Reading in the previous bookmarks and writing them to the temp file */
bookmark_file = open(bookmark_file_name, O_RDONLY);
if (bookmark_file >= 0)
{
while (read_line(bookmark_file, global_read_buffer,
sizeof(global_read_buffer)) > 0)
{
if (bookmark_id != bookmark_count)
{
write(temp_bookmark_file, global_read_buffer,
strlen(global_read_buffer));
write(temp_bookmark_file, "\n", 1);
}
bookmark_count++;
}
close(bookmark_file);
}
close(temp_bookmark_file);
remove(bookmark_file_name);
rename(global_temp_buffer, bookmark_file_name);
return true;
}
/* ----------------------------------------------------------------------- */
/* This function parses a bookmark, says the voice UI part of it. */
/* ------------------------------------------------------------------------*/
static void say_bookmark(const char* bookmark,
int bookmark_id, bool show_playlist_name)
{
if (!parse_bookmark(bookmark, true, false))
{
talk_id(LANG_BOOKMARK_INVALID, false);
return;
}
talk_number(bookmark_id + 1, false);
bool is_dir = (global_temp_buffer[0]
&& global_temp_buffer[strlen(global_temp_buffer)-1] == '/');
/* HWCODEC cannot enqueue voice file entries and .talk thumbnails
together, because there is no guarantee that the same mp3
parameters are used. */
if(show_playlist_name)
{ /* It's useful to know which playlist this is */
if(is_dir)
talk_dir_or_spell(global_temp_buffer,
TALK_IDARRAY(VOICE_DIR), true);
else talk_file_or_spell(NULL, global_temp_buffer,
TALK_IDARRAY(LANG_PLAYLIST), true);
}
if(bm.shuffle)
talk_id(LANG_SHUFFLE, true);
talk_id(VOICE_BOOKMARK_SELECT_INDEX_TEXT, true);
talk_number(bm.resume_index + 1, true);
talk_id(LANG_TIME, true);
talk_value(bm.resume_time / 1000, UNIT_TIME, true);
/* Track filename */
if(!is_dir)
global_temp_buffer[0] = 0;
talk_file_or_spell(global_temp_buffer, global_filename,
TALK_IDARRAY(VOICE_FILE), true);
}
/* ----------------------------------------------------------------------- */
/* This function parses a bookmark and then plays it. */
/* Returns true on successful bookmark play. */
/* ------------------------------------------------------------------------*/
static bool play_bookmark(const char* bookmark)
{
#if defined(HAVE_PITCHCONTROL)
/* preset pitch and speed to 100% in case bookmark doesn't have info */
bm.pitch = sound_get_pitch();
bm.speed = dsp_get_timestretch();
#endif
if (parse_bookmark(bookmark, true, true))
{
global_settings.repeat_mode = bm.repeat_mode;
global_settings.playlist_shuffle = bm.shuffle;
#if defined(HAVE_PITCHCONTROL)
sound_set_pitch(bm.pitch);
dsp_set_timestretch(bm.speed);
#endif
if (!warn_on_pl_erase())
return false;
return bookmark_play(global_temp_buffer, bm.resume_index,
bm.resume_time, bm.resume_offset, bm.resume_seed, global_filename);
}
return false;
}
static const char* skip_token(const char* s)
{
while (*s && *s != ';')
{
s++;
}
if (*s)
{
s++;
}
return s;
}
static const char* int_token(const char* s, int* dest)
{
*dest = atoi(s);
return skip_token(s);
}
static const char* long_token(const char* s, long* dest)
{
*dest = atoi(s); /* Should be atol, but we don't have it. */
return skip_token(s);
}
/* ----------------------------------------------------------------------- */
/* This function takes a bookmark and parses it. This function also */
/* validates the bookmark. The parse_filenames flag indicates whether */
/* the filename tokens are to be extracted. */
/* Returns true on successful bookmark parse. */
/* ----------------------------------------------------------------------- */
static bool parse_bookmark(const char *bookmark, const bool parse_filenames, const bool strip_dir)
{
const char* s = bookmark;
const char* end;
#define GET_INT_TOKEN(var) s = int_token(s, &var)
#define GET_LONG_TOKEN(var) s = long_token(s, &var)
#define GET_BOOL_TOKEN(var) var = (atoi(s)!=0); s = skip_token(s)
/* if new format bookmark, extract the optional content flags,
otherwise treat as an original format bookmark */
int opt_flags = 0;
bool new_format = (strchr(s, '>') == s);
if (new_format)
{
s++;
GET_INT_TOKEN(opt_flags);
}
/* extract all original bookmark tokens */
GET_INT_TOKEN(bm.resume_index);
GET_LONG_TOKEN(bm.resume_offset);
GET_INT_TOKEN(bm.resume_seed);
if (!new_format) /* skip deprecated token */
s = skip_token(s);
GET_LONG_TOKEN(bm.resume_time);
GET_INT_TOKEN(bm.repeat_mode);
GET_BOOL_TOKEN(bm.shuffle);
/* extract all optional bookmark tokens */
if (opt_flags & BM_PITCH)
GET_INT_TOKEN(bm.pitch);
if (opt_flags & BM_SPEED)
GET_INT_TOKEN(bm.speed);
if (*s == 0)
{
return false;
}
end = strchr(s, ';');
/* extract file names */
if (parse_filenames)
{
size_t len = (end == NULL) ? strlen(s) : (size_t) (end - s);
len = MIN(TEMP_BUF_SIZE - 1, len);
strmemccpy(global_temp_buffer, s, len + 1);
if (end != NULL)
{
end++;
if (strip_dir)
{
s = strrchr(end, '/');
if (s)
{
end = s;
end++;
}
}
strmemccpy(global_filename, end, MAX_PATH);
}
}
return true;
}
/* ----------------------------------------------------------------------- */
/* This function is used by multiple functions and is used to generate a */
/* bookmark named based off of the input. */
/* Changing this function could result in how the bookmarks are stored. */
/* it would be here that the centralized/decentralized bookmark code */
/* could be placed. */
/* Returns true if the file name is generated, false if it was too long */
/* ----------------------------------------------------------------------- */
static bool generate_bookmark_file_name(const char *in)
{
/* if this is a root dir MP3, rename the bookmark file root_dir.bmark */
/* otherwise, name it based on the in variable */
if (!strcmp("/", in))
strcpy(global_bookmark_file_name, "/root_dir.bmark");
else
{
#ifdef HAVE_MULTIVOLUME
/* The "root" of an extra volume need special handling too. */
const char *filename;
path_strip_volume(in, &filename, true);
bool volume_root = *filename == '\0';
#endif
size_t len = strlcpy(global_bookmark_file_name, in, MAX_PATH);
if(len >= MAX_PATH)
return false;
if(global_bookmark_file_name[len-1] == '/') {
global_bookmark_file_name[len-1] = '\0';
len--;
}
#ifdef HAVE_MULTIVOLUME
if (volume_root)
len = strlcat(global_bookmark_file_name, "/volume_dir.bmark", MAX_PATH);
else
#endif
len = strlcat(global_bookmark_file_name, ".bmark", MAX_PATH);
if(len >= MAX_PATH)
return false;
}
return true;
}
/* ----------------------------------------------------------------------- */
/* Returns true if a bookmark file exists for the current playlist. */
/* This is an interface function. */
/* ----------------------------------------------------------------------- */
bool bookmark_exists(void)
{
bool exist=false;
char* name = playlist_get_name(NULL, global_temp_buffer,
sizeof(global_temp_buffer));
if (generate_bookmark_file_name(name))
{
exist = file_exists(global_bookmark_file_name);
}
return exist;
}
/* ----------------------------------------------------------------------- */
/* Checks the current state of the system and returns true if it is in a */
/* bookmarkable state. */
/* This is an interface funtion. */
/* ----------------------------------------------------------------------- */
bool bookmark_is_bookmarkable_state(void)
{
int resume_index = 0;
if (!(audio_status() && audio_current_track()) ||
/* no track playing */
(playlist_get_resume_info(&resume_index) == -1) ||
/* invalid queue info */
(playlist_modified(NULL)))
/* can't bookmark while in the queue */
{
return false;
}
return true;
}
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