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machnhed1 Smarty Regular
Joined: 21 Apr 2003 Posts: 39 Location: Illinois
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Posted: Thu Feb 10, 2005 4:50 pm Post subject: Random Code: Possibly Caused by Smarty? |
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Hi,
I'm trying to trouble shoot this error that we are encountering on one of our machines. If you visit the page http://www.boundlessgallery.com/customer/categories/273/Photographs/ you should see a series of photographs with titles of each, however, on one of our machines (and only one) it displays the following (this is only part of the pages code):
Code: |
r.gif" height="35" width="1">
<table border="0" cellpadding="0"
cellspacing="0">
<tr>
<td>
<table width="175"
border="0" cellspacing="0" cellpadding="0">
<tr>
<td>
32
<table border="0" cellpadding="0" cellspacing="0"
a
width=100%
cf
>
<tr>
<td style="border:1px solid #dddddd;" colspan="2">
<table border="0" cellpadding="0" cellspacing="0"
width="100%">
<tr>
<td style="padding:3px;border:1px
solid #ffffff;border-right:0px;
19
background-color:#fbfaf2;
6d
" valign="middle">
<table border="0"
cellpadding="0" cellspacing="0" width="100%">
<tr>
26
<td
width="100%" align="left">
2
<s
18
pan class="form_header">
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The code shows up as plain text in the browser and you'll also notice there is random code inserted (e.g. 32, 19, cf, 2).
This may have nothing to do with smarty, but if anyone has an alternative explanation (i.e. firewall, plugin, virus) I open to it.
TIA _________________ "Every operating system out there is about equal in the number of vulnerabilities reported. We all suck."
- Microsoft Senior Vice President Brian Valentine |
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messju Administrator
Joined: 16 Apr 2003 Posts: 3336 Location: Oldenburg, Germany
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Posted: Thu Feb 10, 2005 5:26 pm Post subject: |
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to me this looks like artefacts of chunked http encoding.
see: http://www.w3.org/Protocols/rfc2616/rfc2616-sec3.html#sec3.6.1
(they know this stuff much better than me )
this may happen if the webserver delivers the body with "Transfer-encoding: chunked" but the client doesn't honor the Transfer-encoding-header and doesn't decode the chunked encoding. |
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machnhed1 Smarty Regular
Joined: 21 Apr 2003 Posts: 39 Location: Illinois
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Posted: Thu Feb 10, 2005 7:54 pm Post subject: |
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Not sure if that is the case, because if the user on the same machine trys to browse this category (which runs the exact same code except that it is pulling information about a different category): http://www.boundlessgallery.com/customer/categories/521/Prints/ the page works as designed. _________________ "Every operating system out there is about equal in the number of vulnerabilities reported. We all suck."
- Microsoft Senior Vice President Brian Valentine |
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boots Administrator
Joined: 16 Apr 2003 Posts: 5611 Location: Toronto, Canada
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Posted: Thu Feb 10, 2005 9:13 pm Post subject: |
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It only happens on one machine? What kind of machine? OS? Browser?
I wonder if it is simply suffering a flakey network connection or other hardware issue. How does that machine perform overall? FWIW, the site looked fine from here, too. |
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machnhed1 Smarty Regular
Joined: 21 Apr 2003 Posts: 39 Location: Illinois
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Posted: Thu Feb 10, 2005 9:20 pm Post subject: |
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Yeah, just one machine running Win XP Pro. Its a smoking workstation with raid, dual proc, etc.. I'm still of the mindset that it is something unique to the machine.
Thanks for taking a look at the pages.
Here's another interesting tid-bit, the machine also has problems regardless of whether I am using IE or Firefox. _________________ "Every operating system out there is about equal in the number of vulnerabilities reported. We all suck."
- Microsoft Senior Vice President Brian Valentine |
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boots Administrator
Joined: 16 Apr 2003 Posts: 5611 Location: Toronto, Canada
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Posted: Fri Feb 11, 2005 2:11 am Post subject: |
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hmm. I've checked it now with IE on w2k and Firefox on Debian and it looks fine on both (btw, nice site design). I would consider checking out the hardware and drivers a bit more closely. Did you try turning off encoding at the server to see if that makes any difference? |
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messju Administrator
Joined: 16 Apr 2003 Posts: 3336 Location: Oldenburg, Germany
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Posted: Fri Feb 11, 2005 8:29 am Post subject: |
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maybe that machine where it's not working does use a proxy that is buggy? some webcache? some anti-virus-web-filter? some ad-filter?
what you posted *really* looks like chunked encoding:
Code: | 32
<table border="0" cellpadding="0" cellspacing="0"
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0x32 is 50 decimal, so 50 bytes will follow. the line contains 50 characters
0xa (10) so 10 bytes will follow - correct
Code: |
cf
>
<tr>
<td style="border:1px solid #dddddd;" colspan="2">
<table border="0" cellpadding="0" cellspacing="0"
width="100%">
<tr>
<td style="padding:3px;border:1px
solid #ffffff;border-right:0px;
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0xcf should be 207 bytes, but i count 230. either something got scrambled here by copy+paste (phpbb is not good for transporting data byte-by-byte ), or the encoding is broken.
Code: | 19
background-color:#fbfaf2;
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0x19 (25 bytes, looks good).
chunked encoding is a transport encoding for http, it should be absolutely transparent to the client. |
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