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Merge remote-tracking branch 'vlad/topic/vladg/http-verbs'

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* vlad/topic/vladg/http-verbs:
  A test for HTTP methods, including some horribly illegal requests.
  Remove hardcoded HTTP verbs from the analyzer (#741)

I added a "bad_HTTP_request" weird for HTTP request lines that don't
have more than a single word.

Closes #741.
This commit is contained in:
Robin Sommer 2012-12-05 15:20:29 -08:00
commit 177c014cb7
6 changed files with 137 additions and 23 deletions
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14
scripts/base/protocols/http/main.bro
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@ -94,6 +94,17 @@ export {
"XROXY-CONNECTION",
"PROXY-CONNECTION",
} &redef;
## A list of HTTP methods. Other methods will generate a weird.
const http_methods: set[string] = {
"GET", "POST", "HEAD", "OPTIONS",
"PUT", "DELETE", "TRACE", "CONNECT",
# HTTP methods for distributed authoring:
"PROPFIND", "PROPPATCH", "MKCOL",
"COPY", "MOVE", "LOCK", "UNLOCK",
"POLL", "REPORT", "SUBSCRIBE", "BMOVE",
"SEARCH"
} &redef;
## Event that can be handled to access the HTTP record as it is sent on
## to the logging framework.
@ -180,6 +191,9 @@ event http_request(c: connection, method: string, original_URI: string,
c$http$method = method;
c$http$uri = unescaped_URI;
if ( method !in http_methods )
event conn_weird("unknown_HTTP_method", c, method);
}
event http_reply(c: connection, version: string, code: count, reason: string) &priority=5