[asterisk-commits] app record: Resolve some absolute vs. relative filename bugs (asterisk[15])
SVN commits to the Asterisk project
asterisk-commits at lists.digium.com
Tue Aug 29 05:48:10 CDT 2017
Joshua Colp has submitted this change and it was merged. ( https://gerrit.asterisk.org/6310 )
Change subject: app_record: Resolve some absolute vs. relative filename bugs
......................................................................
app_record: Resolve some absolute vs. relative filename bugs
If the Record() application is called with a relative filename that
includes directories, we were not properly creating the intermediate
directories and Record() would fail.
Secondarily, updated the documentation for RECORDED_FILE to mention
that it does not include a filename extension.
Finally, rewrote the '%d' functionality to be a bit more straight
forward and less noisy.
ASTERISK-16777 #close
Reported by: klaus3000
Change-Id: Ibc2640cba3a8c7f17d97b02f76b7608b1e7ffde2
---
M apps/app_record.c
1 file changed, 68 insertions(+), 45 deletions(-)
Approvals:
Joshua Colp: Looks good to me, but someone else must approve; Approved for Submit
George Joseph: Looks good to me, approved
diff --git a/apps/app_record.c b/apps/app_record.c
index 0b85ff8..8c3a577 100644
--- a/apps/app_record.c
+++ b/apps/app_record.c
@@ -38,6 +38,7 @@
#include "asterisk/channel.h"
#include "asterisk/dsp.h" /* use dsp routines for silence detection */
#include "asterisk/format_cache.h"
+#include "asterisk/paths.h"
/*** DOCUMENTATION
<application name="Record" language="en_US">
@@ -102,7 +103,7 @@
If the user hangs up during a recording, all data will be lost and the application will terminate.</para>
<variablelist>
<variable name="RECORDED_FILE">
- <para>Will be set to the final filename of the recording.</para>
+ <para>Will be set to the final filename of the recording, without an extension.</para>
</variable>
<variable name="RECORD_STATUS">
<para>This is the final status of the command</para>
@@ -131,10 +132,9 @@
OPTION_STAR_TERMINATE = (1 << 4),
OPTION_IGNORE_TERMINATE = (1 << 5),
OPTION_KEEP = (1 << 6),
- FLAG_HAS_PERCENT = (1 << 7),
- OPTION_ANY_TERMINATE = (1 << 8),
- OPTION_OPERATOR_EXIT = (1 << 9),
- OPTION_NO_TRUNCATE = (1 << 10),
+ OPTION_ANY_TERMINATE = (1 << 7),
+ OPTION_OPERATOR_EXIT = (1 << 8),
+ OPTION_NO_TRUNCATE = (1 << 9),
};
AST_APP_OPTIONS(app_opts,{
@@ -180,14 +180,47 @@
return 0;
}
+static int create_destination_directory(const char *path)
+{
+ int res;
+ char directory[PATH_MAX], *file_sep;
+
+ if (!(file_sep = strrchr(path, '/'))) {
+ /* No directory to create */
+ return 0;
+ }
+
+ /* Overwrite temporarily */
+ *file_sep = '\0';
+
+ /* Absolute path? */
+ if (path[0] == '/') {
+ res = ast_mkdir(path, 0777);
+ *file_sep = '/';
+ return res;
+ }
+
+ /* Relative path */
+ res = snprintf(directory, sizeof(directory), "%s/sounds/%s",
+ ast_config_AST_DATA_DIR, path);
+
+ *file_sep = '/';
+
+ if (res >= sizeof(directory)) {
+ /* We truncated, so we fail */
+ return -1;
+ }
+
+ return ast_mkdir(directory, 0777);
+}
+
static int record_exec(struct ast_channel *chan, const char *data)
{
int res = 0;
- int count = 0;
char *ext = NULL, *opts[0];
- char *parse, *dir, *file;
+ char *parse;
int i = 0;
- char tmp[256];
+ char tmp[PATH_MAX];
struct ast_filestream *s = NULL;
struct ast_frame *f = NULL;
@@ -227,8 +260,6 @@
ast_app_parse_options(app_opts, &flags, opts, args.options);
if (!ast_strlen_zero(args.filename)) {
- if (strstr(args.filename, "%d"))
- ast_set_flag(&flags, FLAG_HAS_PERCENT);
ext = strrchr(args.filename, '.'); /* to support filename with a . in the filename, not format */
if (!ext)
ext = strchr(args.filename, ':');
@@ -266,38 +297,31 @@
if (ast_test_flag(&flags, OPTION_IGNORE_TERMINATE))
terminator = '\0';
- /* done parsing */
+ /*
+ If a '%d' is specified as part of the filename, we replace that token with
+ sequentially incrementing numbers until we find a unique filename.
+ */
+ if (strchr(args.filename, '%')) {
+ size_t src, dst, count = 0;
+ size_t src_len = strlen(args.filename);
+ size_t dst_len = sizeof(tmp) - 1;
- /* these are to allow the use of the %d in the config file for a wild card of sort to
- create a new file with the inputed name scheme */
- if (ast_test_flag(&flags, FLAG_HAS_PERCENT)) {
- AST_DECLARE_APP_ARGS(fname,
- AST_APP_ARG(piece)[100];
- );
- char *tmp2 = ast_strdupa(args.filename);
- char countstring[15];
- int idx;
-
- /* Separate each piece out by the format specifier */
- AST_NONSTANDARD_APP_ARGS(fname, tmp2, '%');
do {
- int tmplen;
- /* First piece has no leading percent, so it's copied verbatim */
- ast_copy_string(tmp, fname.piece[0], sizeof(tmp));
- tmplen = strlen(tmp);
- for (idx = 1; idx < fname.argc; idx++) {
- if (fname.piece[idx][0] == 'd') {
- /* Substitute the count */
- snprintf(countstring, sizeof(countstring), "%d", count);
- ast_copy_string(tmp + tmplen, countstring, sizeof(tmp) - tmplen);
- tmplen += strlen(countstring);
- } else if (tmplen + 2 < sizeof(tmp)) {
- /* Unknown format specifier - just copy it verbatim */
- tmp[tmplen++] = '%';
- tmp[tmplen++] = fname.piece[idx][0];
+ for (src = 0, dst = 0; src < src_len && dst < dst_len; src++) {
+ if (!strncmp(&args.filename[src], "%d", 2)) {
+ int s = snprintf(&tmp[dst], PATH_MAX - dst, "%zu", count);
+ if (s >= PATH_MAX - dst) {
+ /* We truncated, so we need to bail */
+ ast_log(LOG_WARNING, "Failed to create unique filename from template: %s\n", args.filename);
+ pbx_builtin_setvar_helper(chan, "RECORD_STATUS", "ERROR");
+ return -1;
+ }
+ dst += s;
+ src++;
+ } else {
+ tmp[dst] = args.filename[src];
+ tmp[++dst] = '\0';
}
- /* Copy the remaining portion of the piece */
- ast_copy_string(tmp + tmplen, &(fname.piece[idx][1]), sizeof(tmp) - tmplen);
}
count++;
} while (ast_fileexists(tmp, ext, ast_channel_language(chan)) > 0);
@@ -305,7 +329,6 @@
ast_copy_string(tmp, args.filename, sizeof(tmp));
pbx_builtin_setvar_helper(chan, "RECORDED_FILE", tmp);
- /* end of routine mentioned */
if (ast_channel_state(chan) != AST_STATE_UP) {
if (ast_test_flag(&flags, OPTION_SKIP)) {
@@ -354,11 +377,11 @@
ast_dsp_set_threshold(sildet, ast_dsp_get_threshold_from_settings(THRESHOLD_SILENCE));
}
- /* Create the directory if it does not exist. */
- dir = ast_strdupa(tmp);
- if ((file = strrchr(dir, '/')))
- *file++ = '\0';
- ast_mkdir (dir, 0777);
+ if (create_destination_directory(tmp)) {
+ ast_log(LOG_WARNING, "Could not create directory for file %s\n", args.filename);
+ pbx_builtin_setvar_helper(chan, "RECORD_STATUS", "ERROR");
+ goto out;
+ }
ioflags = ast_test_flag(&flags, OPTION_APPEND) ? O_CREAT|O_APPEND|O_WRONLY : O_CREAT|O_TRUNC|O_WRONLY;
s = ast_writefile(tmp, ext, NULL, ioflags, 0, AST_FILE_MODE);
--
To view, visit https://gerrit.asterisk.org/6310
To unsubscribe, visit https://gerrit.asterisk.org/settings
Gerrit-Project: asterisk
Gerrit-Branch: 15
Gerrit-MessageType: merged
Gerrit-Change-Id: Ibc2640cba3a8c7f17d97b02f76b7608b1e7ffde2
Gerrit-Change-Number: 6310
Gerrit-PatchSet: 1
Gerrit-Owner: Sean Bright <sean.bright at gmail.com>
Gerrit-Reviewer: George Joseph <gjoseph at digium.com>
Gerrit-Reviewer: Jenkins2
Gerrit-Reviewer: Joshua Colp <jcolp at digium.com>
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