Added a simple reverse proxy handler.

- For now, it does not support SSL connection on the target yet.
- No external config file support, this is all about coding.
This commit is contained in:
2016-08-05 11:38:35 +02:00
parent 8b172b5d33
commit 9cc9b95190
9 changed files with 488 additions and 0 deletions

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note
description: "Launcher for reverse proxy web application."
date: "$Date$"
revision: "$Revision$"
class
APPLICATION
inherit
WSF_DEFAULT_SERVICE [APPLICATION_EXECUTION]
redefine
initialize
end
create
make_and_launch
feature {NONE} -- Initialization
initialize
-- Initialize current service.
do
-- Specific to `standalone' connector (the EiffelWeb server).
-- See `{WSF_STANDALONE_SERVICE_LAUNCHER}.initialize'
set_service_option ("port", 9090)
import_service_options (create {WSF_SERVICE_LAUNCHER_OPTIONS_FROM_INI}.make_from_file ("server.ini"))
end
end

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note
description: "Reverse proxy example."
date: "$Date$"
revision: "$Revision$"
class
APPLICATION_EXECUTION
inherit
WSF_EXECUTION
WSF_URI_REWRITER
rename
uri as proxy_uri
end
create
make
feature -- Basic operations
execute
do
-- NOTE: please enter the target reverse proxy machine + port number here
-- replace "localhost" and 8080
send_proxy_response ("localhost", 8080, Current)
end
send_proxy_response (a_hostname: READABLE_STRING_8; a_port: INTEGER; a_rewriter: detachable WSF_URI_REWRITER)
local
h: WSF_SIMPLE_REVERSE_PROXY_HANDLER
do
create h.make (a_hostname, a_port)
h.set_uri_rewriter (a_rewriter)
h.set_uri_rewriter (create {WSF_AGENT_URI_REWRITER}.make (agent proxy_uri))
h.set_timeout (30) -- 30 seconds
h.set_connect_timeout (5_000) -- milliseconds = 5 seconds
h.execute (request, response)
end
feature -- Helpers
proxy_uri (a_request: WSF_REQUEST): STRING
-- Request uri rewriten as url.
do
Result := a_request.request_uri
end
end

27
examples/proxy/proxy.ecf Normal file
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<?xml version="1.0" encoding="ISO-8859-1"?>
<system xmlns="http://www.eiffel.com/developers/xml/configuration-1-15-0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.eiffel.com/developers/xml/configuration-1-15-0 http://www.eiffel.com/developers/xml/configuration-1-15-0.xsd" name="proxy" uuid="B55F0D95-3793-4C90-BBAC-BF5F2DECD5E6" library_target="proxy">
<target name="common" abstract="true">
<file_rule>
<exclude>/.svn$</exclude>
<exclude>/CVS$</exclude>
<exclude>/EIFGENs$</exclude>
</file_rule>
<option warning="true" full_class_checking="false" is_attached_by_default="true" void_safety="transitional" syntax="transitional">
<assertions precondition="true" postcondition="true" check="true" invariant="true" loop="true" supplier_precondition="true"/>
</option>
<setting name="console_application" value="true"/>
<library name="base" location="$ISE_LIBRARY\library\base\base-safe.ecf"/>
<library name="http" location="..\..\library\network\protocol\http\http-safe.ecf"/>
<library name="wsf" location="..\..\library\server\wsf\wsf-safe.ecf"/>
<library name="wsf_proxy" location="..\..\library\server\wsf_proxy\wsf_proxy-safe.ecf"/>
</target>
<target name="proxy" extends="common">
<root class="APPLICATION" feature="make_and_launch"/>
<option warning="true" is_attached_by_default="true" void_safety="all" syntax="transitional">
<assertions precondition="true" postcondition="true" check="true" invariant="true" loop="true" supplier_precondition="true"/>
</option>
<setting name="concurrency" value="scoop"/>
<library name="default_standalone" location="..\..\library\server\wsf\default\standalone-safe.ecf"/>
<cluster name="proxy" location=".\" recursive="true"/>
</target>
</system>

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verbose=true
verbose_level=ALERT
port=9090
#max_concurrent_connections=100
#keep_alive_timeout=15
#max_tcp_clients=100
#socket_timeout=300
#max_keep_alive_requests=300