Major Description
In Linux TPROXY forwarding mode ts.client_request.get_uri() omits hostname from the returned url - responds with "http:///pathname?parameters" instead of "http://hostname/pathname?parameters". This happens in the context of early state hooks up to and including TS_HTTP_POST_REMAP_HOOK.
In case of cacheurl.so rewrite on the URL, hostname reamains empty even after post_remap.
Here're the steps to reproduce the problem - a global lua plugin (plugins.config):
==========[cut]==========
function do_global_txn_start()
print('==========[cut]==========')
print ('do_global_txt_start: ' .. ts.client_request.get_url())
end
function do_global_txn_close()
print ('do_global_txn_close: ' .. ts.client_request.get_url())
print('==========[cut]==========')
end
function do_global_os_dns()
print ('do_global_os_dns: ' .. ts.client_request.get_url())
end
function do_global_pre_remap()
print ('do_global_pre_remap: ' .. ts.client_request.get_url())
end
function do_global_post_remap()
print ('do_global_post_remap: ' .. ts.client_request.get_url())
end
function do_global_read_request()
print ('do_global_read_request: ' .. ts.client_request.get_url())
end
function do_global_send_request()
print ('do_global_send_request: ' .. ts.client_request.get_url())
end
function do_global_read_response()
print ('do_global_read_response: ' .. ts.client_request.get_url())
end
function do_global_send_response()
print ('do_global_send_response: ' .. ts.client_request.get_url())
end
function do_global_cache_lookup_complete()
print ('do_global_cache_lookup_complete: ' .. ts.client_request.get_url())
end
function do_global_read_cache()
print ('do_global_read_cache: ' .. ts.client_request.get_url())
end
Requesting same URL - http://l.yimg.com/os/mit/media/m/base/images/transparent-1093278.png - in 4 different scenarios:
1. empty cache (MISS) without cacheurl.so activated
2. HIT request without cacheurl.so activated
3. empty cache (MISS) with cacheurl.so activated
4. HIT request with cacheurl.so activated
cacheurl.config consists the following:
http://[\/](yimg\.com)/(.) http://$1.internal/$2
Here's my traffic.out output:
1. MISS without cacheurl.so
==========[cut]==========
do_global_txt_start: /
do_global_read_request: http:///os/mit/media/m/base/images/transparent-1093278.png
do_global_pre_remap: http:///os/mit/media/m/base/images/transparent-1093278.png
do_global_post_remap: http:///os/mit/media/m/base/images/transparent-1093278.png
do_global_os_dns: http://l.yimg.com/os/mit/media/m/base/images/transparent-1093278.png
do_global_cache_lookup_complete: http://l.yimg.com/os/mit/media/m/base/images/transparent-1093278.png
do_global_send_request: http://l.yimg.com/os/mit/media/m/base/images/transparent-1093278.png
do_global_read_response: http://l.yimg.com/os/mit/media/m/base/images/transparent-1093278.png
do_global_send_response: http://l.yimg.com/os/mit/media/m/base/images/transparent-1093278.png
do_global_txn_close: http://l.yimg.com/os/mit/media/m/base/images/transparent-1093278.png
==========[cut]==========
2. HIT without cacheurl.so:
==========[cut]==========
do_global_txt_start: /
do_global_read_request: http:///os/mit/media/m/base/images/transparent-1093278.png
do_global_pre_remap: http:///os/mit/media/m/base/images/transparent-1093278.png
do_global_post_remap: http:///os/mit/media/m/base/images/transparent-1093278.png
do_global_read_cache: http://l.yimg.com/os/mit/media/m/base/images/transparent-1093278.png
do_global_cache_lookup_complete: http://l.yimg.com/os/mit/media/m/base/images/transparent-1093278.png
do_global_send_response: http://l.yimg.com/os/mit/media/m/base/images/transparent-1093278.png
do_global_txn_close: http://l.yimg.com/os/mit/media/m/base/images/transparent-1093278.png
==========[cut]==========
3. MISS with cacheurl.so:
==========[cut]==========
do_global_txt_start: /
do_global_read_request: http:///os/mit/media/m/base/images/transparent-1093278.png
do_global_pre_remap: http:///os/mit/media/m/base/images/transparent-1093278.png
do_global_post_remap: http:///os/mit/media/m/base/images/transparent-1093278.png
do_global_cache_lookup_complete: http:///os/mit/media/m/base/images/transparent-1093278.png
do_global_os_dns: http:///os/mit/media/m/base/images/transparent-1093278.png
do_global_send_request: http:///os/mit/media/m/base/images/transparent-1093278.png
do_global_read_response: http:///os/mit/media/m/base/images/transparent-1093278.png
do_global_send_response: http:///os/mit/media/m/base/images/transparent-1093278.png
do_global_txn_close: http:///os/mit/media/m/base/images/transparent-1093278.png
==========[cut]==========
4. HIT with cacheurl.so:
==========[cut]==========
do_global_txt_start: /
do_global_read_request: http:///os/mit/media/m/base/images/transparent-1093278.png
do_global_pre_remap: http:///os/mit/media/m/base/images/transparent-1093278.png
do_global_post_remap: http:///os/mit/media/m/base/images/transparent-1093278.png
do_global_read_cache: http:///os/mit/media/m/base/images/transparent-1093278.png
do_global_cache_lookup_complete: http:///os/mit/media/m/base/images/transparent-1093278.png
do_global_send_response: http:///os/mit/media/m/base/images/transparent-1093278.png
do_global_txn_close: http:///os/mit/media/m/base/images/transparent-1093278.png
==========[cut]==========