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Urs Meli

Blog Authors:  Urs Meli  

All entries tagged with webagent

Messing with the content type

Urs Meli  |     |  Tags:  content-type webagent lotusscript  |  Comments (0)
Today, while I was editing a webagent my domino 8.0.1 testserver suddenly crashed.
Everytime I started the agent, my server would crash.

NSD showed just a FATAL error in nhttp with a "Access Violation" message.
I added lots of debug messages to the openlog database. These messages showed me, that the agent had finished successfull before the server crashed.

After investigating the agent a lttle more, adding some additional Print statements, I found the problem.
To have a clean HTML output I added the code: print "content-type:text/html" so my output had the right mime-type.
While refactoring the code I split it into several subroutines and made the mistake to add content type to a string.
My code looked like this

dim result as string

result = "content-type:text/html"
result = result & "<html><head>"
.... [lots of html code here]
print result

After changing the first result= back to print, the agent was working as expected and without crashing the server.

Seems that messing with the content type can crash a domino server.

If this is a bug in domino, than every one, which can create Lotusscript agents and run them through the browser, would be able to crash the server.

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