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<tt>Hi Sharad,<br>
<br>
The sipmsg_validate() function does not perform any checks on the
content of the User-Agent hdr - it only checks if the hdr has a
non-empty body.<br>
<br>
Best regards,<br>
</tt>
<pre class="moz-signature" cols="72">Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
<a class="moz-txt-link-freetext" href="https://www.opensips-solutions.com">https://www.opensips-solutions.com</a>
OpenSIPS Summit, Amsterdam, May 2020
<a class="moz-txt-link-freetext" href="https://www.opensips.org/events/Summit-2020Amsterdam/">https://www.opensips.org/events/Summit-2020Amsterdam/</a>
OpenSIPS Bootcamp, Miami, March 2020
<a class="moz-txt-link-freetext" href="https://opensips.org/training/OpenSIPS_Bootcamp_2020/">https://opensips.org/training/OpenSIPS_Bootcamp_2020/</a>
</pre>
<div class="moz-cite-prefix">On 12/31/19 1:21 AM, Sharad Kumar via
Users wrote:<br>
</div>
<blockquote type="cite"
cite="mid:d8WxLkP8DOljq0zZYXcqshL4WsWJwdMDpJ1MRlOqqAKxapAba1rW36cd3JfeJ3pCjEa22FSfi9FJ3yMGWwFooNS-AtaysSxeZpyPf2TDh50=@protonmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div>Hi guys, <br>
</div>
<div><br>
</div>
<div>We are using openSIPS for edge proxy and one of our client is
sending wrong user-agent which is not compliant with RFC. <br>
</div>
<div>This is the username which is being passed - <br>
</div>
<div><span data-story-id="story_c90e9ed8e55306bc32eb6ac0c4452ad2"
data-room-id="room_967425189658b0b49c30114133283974"
data-timestamp="1577729703633" data-text="Asterisk PBX
1.8.23.0-1_centos5.go RPM by demian@goautodial.com\r\n""
data-userid="424128934191677440"
data-orgid="425206369688383488">Asterisk PBX
1.8.23.0-1_centos5.go RPM by <a
href="mailto:demian@goautodial.com" moz-do-not-send="true">demian@goautodial.com</a>\r\n
</span><br>
</div>
<div><br>
</div>
<div><span data-story-id="story_c90e9ed8e55306bc32eb6ac0c4452ad2"
data-room-id="room_967425189658b0b49c30114133283974"
data-timestamp="1577729703633" data-text="Asterisk PBX
1.8.23.0-1_centos5.go RPM by demian@goautodial.com\r\n""
data-userid="424128934191677440"
data-orgid="425206369688383488">Where @ is not allowed in
user-agent header. We are using this function in openSIPS to
validate SIP headers but this function not seems to be working
and not rejecting that INVITE.</span><br>
</div>
<div>if (!sipmsg_validate("shrftc")){<br>
</div>
<div> send_reply("400","Bad request/body");<br>
</div>
<div> exit;<br>
</div>
<div>}<br>
</div>
<div><br>
</div>
<div>Thank you<br>
</div>
<div><span data-story-id="story_c90e9ed8e55306bc32eb6ac0c4452ad2"
data-room-id="room_967425189658b0b49c30114133283974"
data-timestamp="1577729703633" data-text="Asterisk PBX
1.8.23.0-1_centos5.go RPM by demian@goautodial.com\r\n""
data-userid="424128934191677440"
data-orgid="425206369688383488"></span><br>
</div>
<div class="protonmail_signature_block
protonmail_signature_block-empty">
<div class="protonmail_signature_block-user
protonmail_signature_block-empty"><br>
</div>
<div class="protonmail_signature_block-proton
protonmail_signature_block-empty"><br>
</div>
</div>
<div><br>
</div>
<br>
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<pre class="moz-quote-pre" wrap="">_______________________________________________
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</pre>
</blockquote>
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