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Posted to users@trafficserver.apache.org by Ethan Lai <yz...@yahoo.com> on 2013/11/28 09:47:17 UTC

Request URL unexpectedly changed to CacheUrl if CacheUrl is Set then Get

Guys,

I'm writing a plugin to append some value to CacheUrl with specify HTTP
header.
It works fine if I only call TSCacheUrlSet().

However, if I call TSHttpTxnCacheLookupUrlGet() thereafter, the request URL
will be modified to that CacheUrl I've set.

IMHO, the original request URL should not be affected by CacheUrl,
especially if I just get it back.  Any ideas?

Scenario without calling TSHttpTxnCacheLookupUrlGet:
   Origin Request URL: http://www.example.com/a
   CacheUrl: http://www.example.com/abc
   Expect Request URL: [Same as Origin Request URL]
   Actual Request URL: [Same as Origin Request URL]

Scenario with calling TSHttpTxnCacheLookupUrlGet:
   Origin Request URL: http://www.example.com/a
*   CacheUrl: http://www.example.com/a <http://www.example.com/a>bc*
   Expect Request URL: [Same as Origin Request URL]
*   Actual Request URL: http://www.example.com/a
<http://www.example.com/a>bc*

Thanks,
-Ethan

Re: Request URL unexpectedly changed to CacheUrl if CacheUrl is Set then Get

Posted by Ethan Lai <yz...@yahoo.com>.

Sorry, my mistake.

I should use TSUrlCreate() instead of TSHttpHdrUrlGet() to get url_loc.
Thus, mark this ticket as invalid.


Thanks,
-Ethan


2013/11/30 Ethan Lai <yz...@yahoo.com>

> Jira ticket [TS-2410] EffectiveUrl infected if TSHttpTxnCacheLookupUrlGet
> called after TSCacheUrlSet <https://issues.apache.org/jira/browse/TS-2410>filed
>
> Test plugin which shows EffectiveUrl
>
>    1. before CacheUrlSet
>    2. after CacheUrlSet
>    3. after TSHttpTxnCacheLookupUrlGet
>
> attached in ticket.
>
> EffectiveUrl = 'http://www.example.com/index.html' before CacheUrlSet
>> EffectiveUrl = 'http://www.example.com/index.html' after CacheUrlSet
>> EffectiveUrl = 'http://www.example.com/index.html*+infected*' after
>> TSHttpTxnCacheLookupUrlGet
>
>
>
> Thanks,
> -Ethan
>
>
> 2013/11/28 Ethan Lai <yz...@yahoo.com>
>
>> Guys,
>>
>> I'm writing a plugin to append some value to CacheUrl with specify HTTP
>> header.
>> It works fine if I only call TSCacheUrlSet().
>>
>> However, if I call TSHttpTxnCacheLookupUrlGet() thereafter, the request
>> URL will be modified to that CacheUrl I've set.
>>
>> IMHO, the original request URL should not be affected by CacheUrl,
>> especially if I just get it back.  Any ideas?
>>
>> Scenario without calling TSHttpTxnCacheLookupUrlGet:
>>    Origin Request URL: http://www.example.com/a
>>    CacheUrl: http://www.example.com/abc
>>    Expect Request URL: [Same as Origin Request URL]
>>    Actual Request URL: [Same as Origin Request URL]
>>
>> Scenario with calling TSHttpTxnCacheLookupUrlGet:
>>    Origin Request URL: http://www.example.com/a
>> *   CacheUrl: http://www.example.com/a <http://www.example.com/a>bc*
>>    Expect Request URL: [Same as Origin Request URL]
>> *   Actual Request URL: http://www.example.com/a
>> <http://www.example.com/a>bc*
>>
>> Thanks,
>> -Ethan
>>
>
>

Re: Request URL unexpectedly changed to CacheUrl if CacheUrl is Set then Get

Posted by Ethan Lai <yz...@yahoo.com>.

Jira ticket [TS-2410] EffectiveUrl infected if TSHttpTxnCacheLookupUrlGet
called after TSCacheUrlSet <https://issues.apache.org/jira/browse/TS-2410>filed

Test plugin which shows EffectiveUrl

   1. before CacheUrlSet
   2. after CacheUrlSet
   3. after TSHttpTxnCacheLookupUrlGet

attached in ticket.

EffectiveUrl = 'http://www.example.com/index.html' before CacheUrlSet
> EffectiveUrl = 'http://www.example.com/index.html' after CacheUrlSet
> EffectiveUrl = 'http://www.example.com/index.html*+infected*' after
> TSHttpTxnCacheLookupUrlGet



Thanks,
-Ethan


2013/11/28 Ethan Lai <yz...@yahoo.com>

> Guys,
>
> I'm writing a plugin to append some value to CacheUrl with specify HTTP
> header.
> It works fine if I only call TSCacheUrlSet().
>
> However, if I call TSHttpTxnCacheLookupUrlGet() thereafter, the request
> URL will be modified to that CacheUrl I've set.
>
> IMHO, the original request URL should not be affected by CacheUrl,
> especially if I just get it back.  Any ideas?
>
> Scenario without calling TSHttpTxnCacheLookupUrlGet:
>    Origin Request URL: http://www.example.com/a
>    CacheUrl: http://www.example.com/abc
>    Expect Request URL: [Same as Origin Request URL]
>    Actual Request URL: [Same as Origin Request URL]
>
> Scenario with calling TSHttpTxnCacheLookupUrlGet:
>    Origin Request URL: http://www.example.com/a
> *   CacheUrl: http://www.example.com/a <http://www.example.com/a>bc*
>    Expect Request URL: [Same as Origin Request URL]
> *   Actual Request URL: http://www.example.com/a
> <http://www.example.com/a>bc*
>
> Thanks,
> -Ethan
>