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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 f8212d4594)
This commit is contained in:
Sean Bright
2023-11-07 15:03:53 -05:00
committed by Asterisk Development Team
parent 989e61890a
commit f19b74ad31
9 changed files with 69 additions and 19 deletions
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13
apps/app_authenticate.c
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@@ -95,8 +95,17 @@ static const char app[] = "Authenticate";
maxdigits have been entered (without requiring the user to press the <literal>#</literal> key).
Defaults to 0 - no limit - wait for the user press the <literal>#</literal> key.</para>
</parameter>
<parameter name="prompt" required="false">
<para>Override the agent-pass prompt file.</para>
<parameter name="prompt" required="false" argsep="&amp;">
<para>Override the &quot;agent-pass&quot; sound file. Can be
an ampersand separated list of filenames. If the filename
is a relative filename (it does not begin with a slash), it
will be searched for in the Asterisk sounds directory. If the
filename is able to be parsed as a URL, Asterisk will
download the file and then begin playback on it. To include a
literal <literal>&amp;</literal> in the URL you can enclose
the URL in single quotes.</para>
<argument name="prompt" required="true" />
<argument name="prompt2" multiple="true" />
</parameter>
</syntax>
<description>