[Asterisk-code-review] app_voicemail: Fix phantom voicemail bug on rerecord (asterisk[19])

[George Joseph]

George Joseph has submitted this change. ( https://gerrit.asterisk.org/c/asterisk/+/16683 )

Change subject: app_voicemail: Fix phantom voicemail bug on rerecord
......................................................................

app_voicemail: Fix phantom voicemail bug on rerecord

If users are able to press # for options while leaving
a message and then press 3 to rerecord the message, if
the caller hangs up during the rerecord prompt but before
Asterisk starts recording a message, then an "empty"
voicemail gets processed whereby an email gets sent out
notifying the user of a 0:00 duration message. The file
doesn't actually exist, so playback will fail since there
was no message to begin with.

This adds a check after the streaming of the rerecord
announcement to see if the caller has hung up. If so,
we bail out early so that we can clean up properly.

ASTERISK-29391 #close

Change-Id: Id965d72759a2fd3b39afb76fec08aaebebe75c31
---
M apps/app_voicemail.c
1 file changed, 6 insertions(+), 0 deletions(-)

Approvals:
  Kevin Harwell: Looks good to me, but someone else must approve
  George Joseph: Looks good to me, approved; Approved for Submit



diff --git a/apps/app_voicemail.c b/apps/app_voicemail.c
index cb70ed6..39bfd93 100644
--- a/apps/app_voicemail.c
+++ b/apps/app_voicemail.c
@@ -15590,6 +15590,12 @@
 				}
 				cmd = ast_play_and_wait(chan, "beep");
 			}
+			if (cmd == -1) {
+				/* User has hung up, no options to give */
+				ast_debug(1, "User hung up before message could be rerecorded\n");
+				ast_filedelete(tempfile, NULL);
+				return cmd;
+			}
 			recorded = 1;
 			/* After an attempt has been made to record message, we have to take care of INTRO and beep for incoming messages, but not for greetings */
 			if (record_gain)

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Gerrit-Project: asterisk
Gerrit-Branch: 19
Gerrit-Change-Id: Id965d72759a2fd3b39afb76fec08aaebebe75c31
Gerrit-Change-Number: 16683
Gerrit-PatchSet: 2
Gerrit-Owner: N A <mail at interlinked.x10host.com>
Gerrit-Reviewer: Friendly Automation
Gerrit-Reviewer: George Joseph <gjoseph at digium.com>
Gerrit-Reviewer: Kevin Harwell <kharwell at digium.com>
Gerrit-MessageType: merged
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