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app.c: Allow ampersands in playback lists to be escaped.

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Any function or application that accepts a `&`-separated list of
filenames can now include a literal `&` in a filename by wrapping the
entire filename in single quotes, e.g.:

```
exten = _X.,n,Playback('https://example.com/sound.cgi?a=b&c=d'&hello-world)
```

Fixes #172

UpgradeNote: Ampersands in URLs passed to the `Playback()`,
`Background()`, `SpeechBackground()`, `Read()`, `Authenticate()`, or
`Queue()` applications as filename arguments can now be escaped by
single quoting the filename. Additionally, this is also possible when
using the `CONFBRIDGE` dialplan function, or configuring various
features in `confbridge.conf` and `queues.conf`.

(cherry picked from commit 6b4d7f2125)
This commit is contained in:
Sean Bright
2023-11-07 15:03:53 -05:00
committed by Asterisk Development Team
parent 3344b19dac
commit a8015816b1
9 changed files with 69 additions and 19 deletions
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4
apps/app_confbridge.c
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@@ -3035,7 +3035,7 @@ static int action_playback(struct ast_bridge_channel *bridge_channel, const char
char *file_copy = ast_strdupa(playback_file);
char *file = NULL;
while ((file = strsep(&file_copy, "&"))) {
while ((file = ast_strsep(&file_copy, '&', AST_STRSEP_STRIP | AST_STRSEP_TRIM))) {
if (ast_stream_and_wait(bridge_channel->chan, file, "")) {
ast_log(LOG_WARNING, "Failed to playback file %s to channel\n", file);
return -1;
@@ -3059,7 +3059,7 @@ static int action_playback_and_continue(struct confbridge_conference *conference
char *file_copy = ast_strdupa(playback_file);
char *file = NULL;
while ((file = strsep(&file_copy, "&"))) {
while ((file = ast_strsep(&file_copy, '&', AST_STRSEP_STRIP | AST_STRSEP_TRIM))) {
if (ast_streamfile(bridge_channel->chan, file, ast_channel_language(bridge_channel->chan))) {
ast_log(LOG_WARNING, "Failed to playback file %s to channel\n", file);
return -1;