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This is an automatically generated e-mail. To reply, visit:
<a href="https://reviewboard.asterisk.org/r/3817/">https://reviewboard.asterisk.org/r/3817/</a>
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<p style="margin-top: 0;">On July 18th, 2014, 3:40 p.m. UTC, <b>Mark Michelson</b> wrote:</p>
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<a href="https://reviewboard.asterisk.org/r/3817/diff/2/?file=64713#file64713line1195" style="color: black; font-weight: bold; text-decoration: underline;">/trunk/include/asterisk/res_pjsip.h</a>
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(Diff revision 2)
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<td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">int ast_sip_thread_is_servant(void);</pre></td>
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<th bgcolor="#f0f0f0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">1195</font></th>
<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm">/*!</span></pre></td>
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<td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm">/*!</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"> * \brief Determine whether the given string is parseable as a SIP URI</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"> *</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"> * \retval 0 This is not parsable as a URI</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"> * \retval 1 This is parsable as a URI</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"> *</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"> * \note Useful for vetting a URI string that will be passed to PJSIP</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"> */</span></pre></td>
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<td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="kt">int</span> <span class="nf">ast_sip_string_is_uri</span><span class="p">(</span><span class="k">const</span> <span class="kt">char</span> <span class="o">*</span><span class="n">uri</span><span class="p">);</span></pre></td>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">This function isn't necessary. When PJSIP is passed a URI string, PJSIP will perform URI validation for us and return an error if a badly-formed URI is passed in.</pre>
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<p>On July 18th, 2014, 4:06 p.m. UTC, <b>Jonathan Rose</b> wrote:</p>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">I was absolutely getting crashes when using URIs that didn't start with 'sip:' or else were only 'sip:' without anything appended to them. I'm not sure if that will keep being the case if we use the default endpoint like suggested below, but if it does then I might need to keep this around.</pre>
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<p>On July 18th, 2014, 5:22 p.m. UTC, <b>Jonathan Rose</b> wrote:</p>
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<pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">After testing it with the default outbound endpoint, it was still able to cause crashes. Rats.</pre>
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<pre style="margin-left: 1em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Where does the crash occur? Is it in Asterisk's lower-level res_pjsip code, or is it in PJSIP itself? If the crash is in Asterisk, it sounds like there are some assumptions being made in the lower levels that shouldn't be made and those should be fixed there. If the crash is in PJSIP (especially if it's an assertion failure), then that means we do have to do some validation before calling down into PJSIP, but that validation should be left to the core res_pjsip code rather than being the duty of users of the res_pjsip API.
If we do need to perform validation of the URI, the implementation has some issues. It's limiting since it only allows for sip: URIs and not, for instance, sips: URIs. It also only checks that the prefix is valid for a sip: URI. It does no other checking of the rest of the URI. A more thorough way of checking validity of the URI is to use pjsip_parse_uri() from PJSIP. If you then want to make sure that the URI is a sip: or sips: URI, you can use the PJSIP_URI_SCHEME_IS_SIP() and PJSIP_URI_SCHEME_IS_SIPS() macros to do so.</pre>
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<p>- Mark</p>
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<p>On July 18th, 2014, 6:32 p.m. UTC, Jonathan Rose wrote:</p>
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<div>Review request for Asterisk Developers, Matt Jordan and Mark Michelson.</div>
<div>By Jonathan Rose.</div>
<p style="color: grey;"><i>Updated July 18, 2014, 6:32 p.m.</i></p>
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<b style="color: #575012; font-size: 10pt;">Repository: </b>
Asterisk
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Description </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Example:
Action: PJSIPNotify
URI: sip:10.10.10.10
pjsip send notify uri <type> uri <uri> [uri...]
Adds the ability to use URIs with the PJSIP notify commands instead of endpoints. These mostly work the same as the endpoint notifications.</pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Testing </h1>
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<pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Used existing endpoint notification and compared it to similar notifies done against URIs. The outgoing messages looked the same as far as the details I was concerned with went.</pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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<li>/trunk/res/res_pjsip_notify.c <span style="color: grey">(418868)</span></li>
<li>/trunk/res/res_pjsip.c <span style="color: grey">(418868)</span></li>
<li>/trunk/include/asterisk/res_pjsip.h <span style="color: grey">(418868)</span></li>
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<p><a href="https://reviewboard.asterisk.org/r/3817/diff/" style="margin-left: 3em;">View Diff</a></p>
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