Merge changes from Javier

- update on RESTbuck examples
- new example
- fixed bad typo in WSF_REQUEST

Reverted some changes such as
- http_client_response: keep the headers as a list to handle multiple message-value with same message-name

Fixed simple and simple_file example
Improved HTTP_HEADER

Changed libcurl implementation for http client
- now the header from the context really overwrite any of the session headers
- better design which is more strict, and remove any doubt about context's header usage

examples/restbucks/client/src/restbuck_client.e

@@ -1,72 +0,0 @@
-note
-	description : "Objects that ..."
-	author      : "$Author$"
-	date        : "$Date$"
-	revision    : "$Revision$"
-
-class
-	RESTBUCK_CLIENT
-
-create
-	make
-
-feature {NONE} -- Initialization
-
-	make
-			-- Initialize `Current'.
-		local
-			h: LIBCURL_HTTP_CLIENT
-			sess: HTTP_CLIENT_SESSION
-			s: READABLE_STRING_8
-			j: JSON_PARSER
-			id: detachable STRING
-		do
-			create h.make
-			sess := h.new_session ("http://127.0.0.1")
-			s := "[
-			  	      {
-						"location":"takeAway",
-						"items":[
-						        {
-						        "name":"Late",
-						        "option":"skim",
-						        "size":"Small",
-						        "quantity":1
-						        }
-						    ]
-						}
-				]"
-
-			if attached sess.post ("/order", Void, s) as r then
-				if attached r.body as m then
-					create j.make_parser (m)
-
-					if j.is_parsed and attached j.parse_object as j_o then
-						if attached {JSON_STRING} j_o.item ("id") as l_id then
-							id := l_id.item
-						end
-						print (m)
-						io.put_new_line
-
-					end
-				end
-			end
-
-			if id /= Void and then attached sess.get ("/order/" + id, Void) as r then
-				print (r.body)
-				io.put_new_line
-			end
-		end
-
-feature -- Status
-
-feature -- Access
-
-feature -- Change
-
-feature {NONE} -- Implementation
-
-invariant
---	invariant_clause: True
-
-end

examples/restbucks/readme.txt

@@ -1,51 +0,0 @@
-Restbuck Eiffel Implementation based on the book of REST in Practice
-
-
-Verb         URI or template     Use
-POST         /order              Create a new order, and upon success, receive a Locationheader specifying the new order<65>s URI.
-GET          /order/{orderId}    Request the current state of the order specified by the URI.
-PUT          /order/{orderId}    Update an order at the given URI with new information, providing the full representation.
-DELETE       /order/{orderId}    Logically remove the order identified by the given URI.
-
-
-How to Create an order
-
-    * Uri: http://localhost:8080/order
-    * Method: POST
-    * Note: you will get in the response the "location" of the new your order.
-    * HEADERS:
-
-      Content-Type: application/json
-
-    * Example CONTENT
-	     
-  	      {
-		"location":"takeAway",
-		"items":[
-		        {
-		        "name":"Late",
-		        "option":"skim",
-		        "size":"Small",
-		        "quantity":1
-		        }
-		    ]
-		}
-
-
-
-How to Read an order
-    * Uri: http://localhost:8080/order/{order_id}
-    * Method: GET
-
-
-
-
-How to Update an order
-    * Uri: http://localhost:8080/order/{order_id}
-    * Method: PUT
-
-
-How to Delete an order
-    * Uri: http://localhost:8080/order/{order_id}
-    * Method: DELETE
-

examples/restbucksCRUD/client/src/restbuck_client.e

@@ -0,0 +1,170 @@
+note
+	description : "Objects that ..."
+	author      : "$Author$"
+	date        : "$Date$"
+	revision    : "$Revision$"
+
+class
+	RESTBUCK_CLIENT
+
+create
+	make
+
+feature {NONE} -- Initialization
+
+	make
+			-- Initialize `Current'.
+		local
+			h: LIBCURL_HTTP_CLIENT
+			sess: HTTP_CLIENT_SESSION
+			resp : HTTP_CLIENT_RESPONSE
+			l_location : detachable READABLE_STRING_8
+			body : STRING
+		do
+			create h.make
+			sess := h.new_session ("http://127.0.0.1:8080")
+			-- Create Order
+			print ("%N Create Order %N")
+			resp := create_order (sess)
+
+			-- Read the Order
+			print ("%N Read Order %N")
+			l_location := resp.headers.at ("Location")
+			resp := read_order (sess, l_location)
+
+
+			-- Update the Order
+
+			if attached resp.body as l_body then
+				body := l_body.as_string_8
+				body.replace_substring_all ("takeAway", "in Shop")
+				print ("%N Update Order %N")
+				resp := update_order (sess, l_location, body)
+			end
+		end
+
+	update_order ( sess: HTTP_CLIENT_SESSION; uri : detachable READABLE_STRING_8; a_body : STRING) : HTTP_CLIENT_RESPONSE
+		local
+			l_headers: HASH_TABLE [READABLE_STRING_8,READABLE_STRING_8]
+		do
+			create Result.make
+			if attached uri as l_uri then
+				sess.set_base_url (l_uri)
+				Result := sess.put ("", Void, a_body )
+				if attached Result as r then
+					-- Show headers
+					l_headers := r.headers
+					from
+						l_headers.start
+					until
+						l_headers.after
+					loop
+						print (l_headers.key_for_iteration)
+						print (":")
+						print (l_headers.item_for_iteration)
+						l_headers.forth
+						io.put_new_line
+					end
+
+					-- Show body
+					print (r.body)
+					io.put_new_line
+				end
+			end
+		end
+
+
+	read_order ( sess: HTTP_CLIENT_SESSION; uri : detachable READABLE_STRING_8) : HTTP_CLIENT_RESPONSE
+		local
+			l_headers: HASH_TABLE [READABLE_STRING_8,READABLE_STRING_8]
+		do
+			create Result.make
+			if attached uri as l_uri then
+				sess.set_base_url (l_uri)
+				Result := sess.get ("", Void)
+				if attached Result as r then
+					-- Show headers
+					l_headers := r.headers
+					from
+						l_headers.start
+					until
+						l_headers.after
+					loop
+						print (l_headers.key_for_iteration)
+						print (":")
+						print (l_headers.item_for_iteration)
+						l_headers.forth
+						io.put_new_line
+					end
+
+					-- Show body
+					print (r.body)
+					io.put_new_line
+				end
+			end
+		end
+
+
+
+	create_order (sess: HTTP_CLIENT_SESSION) : HTTP_CLIENT_RESPONSE
+		local
+			s: READABLE_STRING_8
+			j: JSON_PARSER
+			id: detachable STRING
+			context : HTTP_CLIENT_REQUEST_CONTEXT
+			l_headers: HASH_TABLE [READABLE_STRING_8,READABLE_STRING_8]
+		do
+			s := "[
+			  	      {
+						"location":"takeAway",
+						"items":[
+						        {
+						        "name":"Late",
+						        "option":"skim",
+						        "size":"Small",
+						        "quantity":1
+						        }
+						    ]
+						}
+				]"
+
+			create context.make
+			context.headers.put ("application/json", "Content-Type")
+			Result := sess.post ("/order", context, s)
+			if attached Result as r then
+				-- Show the Headers
+				l_headers := r.headers
+				from
+					l_headers.start
+				until
+					l_headers.after
+				loop
+					print (l_headers.key_for_iteration)
+					print (":")
+					print (l_headers.item_for_iteration)
+					l_headers.forth
+					io.put_new_line
+				end
+
+
+				-- Show the Response body
+				if attached r.body as m then
+					create j.make_parser (m)
+					if j.is_parsed and attached j.parse_object as j_o then
+						if attached {JSON_STRING} j_o.item ("id") as l_id then
+							id := l_id.item
+						end
+						print (m)
+						io.put_new_line
+					end
+				end
+			end
+		end
+
+
+feature {NONE} -- Implementation
+
+invariant
+--	invariant_clause: True
+
+end

examples/restbucksCRUD/readme.md

@@ -0,0 +1,293 @@
+Restbuck Eiffel Implementation based on the book of REST in Practice
+====================================================================
+This is an ihmplementation of CRUD pattern for manipulate resources, this is the first step to use
+the HTTP protocol as an application protocol instead of a transport protocol.
+
+Restbuck Protocol
+-----------------
+
+<table>
+<TR><TH>Verb</TH>         <TH>URI or template</TH>     <TH>Use</TH></TR>
+<TR><TD>POST</TD>         <TD>/order</TD>              <TD>Create a new order, and upon success, receive a Locationheader specifying the new order's URI.</TD></TR>
+<TR><TD>GET</TD>          <TD>/order/{orderId}</TD>    <TD>Request the current state of the order specified by the URI.</TD></TR>
+<TR><TD>PUT</TD>          <TD>/order/{orderId}</TD>    <TD>Update an order at the given URI with new information, providing the full representation.</TD></TR>
+<TR><TD>DELETE</TD>       <TD>/order/{orderId}</TD>    <TD>Logically remove the order identified by the given URI.</TD></TR>
+</table>
+
+Resource Represenation
+----------------------
+The previous tables shows a contrat, the URI or URI template, allows us to indentify resources, now we will chose a 
+representacion, for this particular case we will use JSON.
+
+Note: <br/>
+1. *A resource can have multiple URIs*.<br/>
+2. *A resource can have multiple Representations*.<br/>
+
+RESTBUCKS_SERVER
+----------------
+This class implement the main entry of our REST CRUD service, we are using a default connector (Nino Connector, 
+using a WebServer written in Eiffel).
+We are inheriting from URI_TEMPLATE_ROUTED_SERVICE, this allows us to map our service contrat, as is shown in the previous
+table, the mapping is defined in the feature setup_router, this also show that the class ORDER_HANDLER will be encharge
+of to handle different type of request to the ORDER resource.
+
+
+	class
+		RESTBUCKS_SERVER
+	
+	inherit
+		ANY
+	
+		URI_TEMPLATE_ROUTED_SERVICE
+	
+		DEFAULT_SERVICE
+			-- Here we are using a default connector using the default Nino Connector,
+			-- but it's possible to use other connector (CGI or FCGI).
+	
+	create
+		make
+	
+	feature {NONE} -- Initialization
+	
+		make
+			-- Initialize the router (this will have the request handler and 
+			-- their context).
+			do
+				initialize_router
+				make_and_launch
+			end
+	
+		create_router
+			do
+				create router.make (2)
+			end
+	
+		setup_router
+			local
+				order_handler: ORDER_HANDLER [REQUEST_URI_TEMPLATE_HANDLER_CONTEXT]
+			do
+				create order_handler
+				router.map_with_request_methods ("/order", order_handler, <<"POST">>)
+				router.map_with_request_methods ("/order/{orderid}", order_handler, <<"GET", "DELETE", "PUT">>)
+			end
+	
+	feature -- Execution
+	
+		execute_default (req: WSF_REQUEST; res: WSF_RESPONSE)
+				-- I'm using this method to handle the method not allowed response
+				-- in the case that the given uri does not have a corresponding http method
+				-- to handle it.
+			local
+				h : HTTP_HEADER
+				l_description : STRING
+				l_api_doc : STRING
+			do
+				if req.content_length_value > 0 then
+					req.input.read_string (req.content_length_value.as_integer_32)
+				end
+				create h.make
+				h.put_status ({HTTP_STATUS_CODE}.method_not_allowed)
+				h.put_content_type_text_plain
+				l_api_doc := "%NPlease check the API%NURI:/order METHOD: POST%NURI:/order/{orderid} METHOD: GET, PUT, DELETE%N"
+				l_description := req.request_method + req.request_uri + " is not allowed" + "%N" + l_api_doc
+				h.put_content_length (l_description.count)
+				h.put_current_date
+				res.set_status_code ({HTTP_STATUS_CODE}.method_not_allowed)
+				res.write_header_text (h.string)
+				res.write_string (l_description)
+			end
+	
+	end
+
+
+
+How to Create an order with POST
+--------------------------------
+
+Here is the convention that we are using: 
+POST is used for creation and the server determines the URI of the created resource.
+If the request POST is SUCCESS, the server will create the order and will response with
+201 CREATED, the Location header will contains the newly created order's URI,
+if the request POST is not SUCCESS, the server will response with
+400 BAD REQUEST, the client send a bad request or
+500 INTERNAL_SERVER_ERROR, when the server can deliver the request.
+
+	POST /order HTTP/1.1
+	Host: 127.0.0.1:8080
+	Connection: keep-alive
+	Content-Length: 196
+	Origin: chrome-extension://fhjcajmcbmldlhcimfajhfbgofnpcjmb
+	Content-Type: application/json
+	Accept: */*
+	Accept-Encoding: gzip,deflate,sdch
+	Accept-Language: es-419,es;q=0.8,en;q=0.6
+	Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3
+		     
+	{
+	 "location":"takeAway",
+	 "items":[
+	          {
+	           "name":"Late",
+		   "option":"skim",
+		   "size":"Small",
+		   "quantity":1
+		   }
+	    ]
+	}
+
+Response success
+
+	HTTP/1.1 201 Created
+	Status	201 Created
+	Content-Type	application/json
+	Content-Length	123
+	Location	http://localhost:8080/order/1
+	Date	FRI,09 DEC 2011 20:34:20.00 GMT
+	
+	{
+	  "location" : "takeAway",
+	  "status" : "submitted",
+	  "items" : [ {
+	    "name" : "late",
+	    "size" : "small",
+	    "quantity" : 1,
+	    "option" : "skim"
+	  } ]
+	}
+
+
+How to Read an order with GET
+-----------------------------
+Using GET to retrieve resource information.
+If the GET request is SUCCESS, we response with 200 OK, and a representation of the order
+If the GET request is not SUCCESS, we response with 404 Resource not found
+If is a Conditional GET and the resource does not change we send a 304, Resource not modifed
+
+	GET /order/1 HTTP/1.1
+	Host: 127.0.0.1:8080
+	Connection: keep-alive
+	Accept: */*
+	Accept-Encoding: gzip,deflate,sdch
+	Accept-Language: es-419,es;q=0.8,en;q=0.6
+	Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.3
+	If-None-Match: 6542EF270D91D3EAF39CFB382E4CEBA7
+
+Response
+	HTTP/1.1 200 OK
+	
+	Status	200 OK
+	Content-Type	application/json
+	Content-Length	123
+	Date	FRI,09 DEC 2011 20:53:46.00 GMT
+	etag	2ED3A40954A95D766FC155682DC8BB52
+	
+	{
+	  "location" : "takeAway",
+	  "status" : "submitted",
+	  "items" : [ {
+	    "name" : "late",
+	    "size" : "small",
+	    "quantity" : 1,
+	    "option" : "skim"
+	  } ]
+	}
+
+
+
+How to Update an order with PUT
+-------------------------------
+A successful PUT request will not create a new resource, instead it will change the state of the resource identified by the current uri.
+If success we response with 200 and the updated order.
+404 if the order is not found
+400 in case of a bad request
+500 internal server error
+If the request is a Conditional PUT, and it does not mat we response 415, precondition failed.
+
+Suposse that we had created an Order with the values shown in the _How to create an order with POST_
+But we change our decision and we want to stay in the shop.
+
+
+
+	PUT /order/1 HTTP/1.1
+	Content-Length: 122
+	Content-Type: application/json; charset=UTF-8
+	Host: localhost:8080
+	Connection: Keep-Alive
+	Expect: 100-Continue
+
+	{
+	  "location" : "in shop",
+	  "status" : "submitted",
+	  "items" : [ {
+	    "name" : "late",
+	    "size" : "small",
+	    "quantity" : 1,
+	    "option" : "skim"
+	  } ]
+	}
+
+
+Response success
+
+	HTTP/1.1 200 OK
+	Status	200 OK
+	Content-Type	application/json
+	Date	FRI,09 DEC 2011 21:06:26.00 GMT
+	etag	8767F900674B843E1F3F70BCF3E62403
+	Content-Length	122
+	
+	{
+  	"location" : "in shop",
+  	"status" : "submitted",
+  	"items" : [ {
+    		"name" : "late",
+    		"size" : "small",
+    		"quantity" : 1,
+    		"option" : "skim"
+  	} ]
+	}
+
+How to Delete an order with DELETE
+----------------------------------
+Here we use DELETE to cancel an order, if that order is in state where it can still be canceled.
+204 if is ok
+404 Resource not found
+405 if consumer and service's view of the resouce state is inconsisent
+500 if we have an internal server error
+
+
+	DELETE /order/1 HTTP/1.1
+	Host: localhost:8080
+	Connection: Keep-Alive
+
+Response success
+
+	HTTP/1.1 204 No Content
+
+	Status	204 No Content
+	Content-Type	application/json
+	Date	FRI,09 DEC 2011 21:10:51.00 GMT
+	
+If we want to check that the resource does not exist anymore we can try to retrieve a GET /order/1 and we will receive a
+404 No Found
+
+	GET /order/1 HTTP/1.1
+	Host: localhost:8080
+	Connection: Keep-Alive
+
+Response
+
+	HTTP/1.1 404 Not Found
+	
+	Status	404 Not Found
+	Content-Type	application/json
+	Content-Length	44
+	Date	FRI,09 DEC 2011 21:14:17.79 GMT
+
+	The following resource/order/1 is not found 
+
+
+References
+----------
+1. [How to get a cup of coffe](http://www.infoq.com/articles/webber-rest-workflow) 
+2. [Rest in Practice] (http://restinpractice.com/default.aspx)

examples/restbucksCRUD/src/domain/json_order_converter.e

@@ -38,7 +38,7 @@ feature -- Conversion
             s_location ?= json.object (j.item (location_key), Void)
             s_status ?= json.object (j.item (status_key), Void)
 
-         	create o.make (s_id, s_location, s_status)
+         	create o.make ("", s_location, s_status)
 
 			if attached {JSON_ARRAY} j.item (items_key) as l_val then
 				l_array := l_val.array_representation
@@ -87,7 +87,7 @@ feature -- Conversion
         	jv: JSON_OBJECT
         do
         	create Result.make
-            Result.put (json.value (o.id), id_key)
+--            Result.put (json.value (o.id), id_key)
             Result.put (json.value (o.location), location_key)
 			Result.put (json.value (o.status), status_key)
             from

examples/restbucksCRUD/src/resource/order_handler.e

@@ -66,9 +66,9 @@ feature -- HTTP Methods
 		local
 			etag_util : ETAG_UTILS
 		do
-			if attached req.meta_variable ("HTTP_IF_NONE_MATCH") as if_none_match then
+			if attached req.meta_string_variable ("HTTP_IF_NONE_MATCH") as if_none_match then
 				create etag_util
-				if if_none_match.as_string.same_string (etag_util.md5_digest (l_order.out).as_string_32) then
+				if if_none_match.same_string (etag_util.md5_digest (l_order.out).as_string_32) then
 					Result := True
 				end
 			end
@@ -108,26 +108,31 @@ feature -- HTTP Methods
 		-- If the request is a Conditional PUT, and it does not mat we response
 		-- 415, precondition failed.
 		local
-			l_post: STRING
+			l_put: STRING
 			l_order : detachable ORDER
+			id :  STRING
 		do
-			req.input.read_string (req.content_length_value.as_integer_32)
-			l_post := req.input.last_string
-			l_order := extract_order_request(l_post)
-			if  l_order /= Void and then db_access.orders.has_key (l_order.id) then
-				if is_valid_to_update(l_order) then
-					if is_conditional_put (req, l_order) then
-						update_order( l_order)
-						compute_response_put (ctx, req, res, l_order)
+			if attached req.orig_path_info as orig_path then
+				id := get_order_id_from_path (orig_path)
+				req.input.read_string (req.content_length_value.as_integer_32)
+				l_put := req.input.last_string
+				l_order := extract_order_request(l_put)
+				if  l_order /= Void and then db_access.orders.has_key (id) then
+					l_order.set_id (id)
+					if is_valid_to_update(l_order) then
+						if is_conditional_put (req, l_order) then
+							update_order( l_order)
+							compute_response_put (ctx, req, res, l_order)
+						else
+							handle_precondition_fail_response ("", ctx, req, res)
+						end
 					else
-						handle_precondition_fail_response ("", ctx, req, res)
+						--| FIXME: Here we need to define the Allow methods
+						handle_resource_conflict_response (l_put +"%N There is conflict while trying to update the order, the order could not be update in the current state", ctx, req, res)
 					end
 				else
-					--| FIXME: Here we need to define the Allow methods
-					handle_resource_conflict_response (l_post +"%N There is conflict while trying to update the order, the order could not be update in the current state", ctx, req, res)
+					handle_bad_request_response (l_put +"%N is not a valid ORDER, maybe the order does not exist in the system", ctx, req, res)
 				end
-			else
-				handle_bad_request_response (l_post +"%N is not a valid ORDER, maybe the order does not exist in the system", ctx, req, res)
 			end
 		end
 
@@ -138,9 +143,9 @@ feature -- HTTP Methods
 			etag_util : ETAG_UTILS
 		do
 			if attached retrieve_order (order.id) as l_order then
-				if attached req.meta_variable ("HTTP_IF_MATCH") as if_match then
+				if attached req.meta_string_variable ("HTTP_IF_MATCH") as if_match then
 						create etag_util
-						if if_match.as_string.same_string (etag_util.md5_digest (l_order.out).as_string_32) then
+						if if_match.same_string (etag_util.md5_digest (l_order.out).as_string_32) then
 							Result := True
 						end
 				else

examples/simple/application.e

@@ -0,0 +1,30 @@
+note
+	description : "simple application root class"
+	date        : "$Date$"
+	revision    : "$Revision$"
+
+class
+	APPLICATION
+
+create
+	make
+
+feature {NONE} -- Initialization
+
+	make
+			-- Run application.
+		local
+			s: DEFAULT_SERVICE
+		do
+			create s.make_and_launch (agent execute)
+		end
+
+	execute (req: WSF_REQUEST; res: WSF_RESPONSE)
+		do
+			-- To send a response we need to setup, the status code and
+			-- the response headers.
+			res.write_header ({HTTP_STATUS_CODE}.ok, <<["Content-Type", "text/plain"], ["Content-Length", "11"]>>)
+			res.write_string ("Hello World")
+		end
+
+end

examples/simple/simple.ecf

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="ISO-8859-1"?>
+<system xmlns="http://www.eiffel.com/developers/xml/configuration-1-9-0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.eiffel.com/developers/xml/configuration-1-9-0 http://www.eiffel.com/developers/xml/configuration-1-9-0.xsd" name="simple" uuid="C28C4F53-9963-46C0-A080-8F13E94E7486">
+	<target name="simple">
+		<root class="APPLICATION" feature="make"/>
+		<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>
+		<library name="base" location="$ISE_LIBRARY\library\base\base-safe.ecf"/>
+		<library name="default_nino" location="..\..\library\server\wsf\default\nino-safe.ecf"/>
+		<library name="http" location="..\..\library\protocol\http\http-safe.ecf"/>
+		<library name="wsf" location="..\..\library\server\wsf\wsf-safe.ecf"/>
+		<cluster name="simple" location=".\" recursive="true">
+			<file_rule>
+				<exclude>/EIFGENs$</exclude>
+				<exclude>/CVS$</exclude>
+				<exclude>/.svn$</exclude>
+			</file_rule>
+		</cluster>
+	</target>
+	<target name="simple_dotnet" extends="simple">
+		<setting name="msil_generation" value="true"/>
+	</target>
+</system>

examples/simple/simple.rc

@@ -0,0 +1 @@
+

examples/simple_file/home.html

@@ -0,0 +1,13 @@
+<html>
+	<head>
+		Eiffel REST services
+	</head>
+
+	<body>
+		Welcome to the Eiffel REST services site, here you will find a lot of <br/>
+		resources about REST and our solution
+
+
+	</body>
+
+</html>

examples/simple_file/service_file.e

@@ -0,0 +1,29 @@
+note
+	description : "simple application root class"
+	date        : "$Date$"
+	revision    : "$Revision$"
+
+class
+	SERVICE_FILE
+
+create
+	make
+
+feature {NONE} -- Initialization
+
+	make
+			-- Run application.
+		local
+			s: DEFAULT_SERVICE
+		do
+			create s.make_and_launch (agent execute)
+		end
+
+	execute (req: WSF_REQUEST; res: WSF_RESPONSE)
+		local
+			f: WSF_FILE_RESPONSE
+		do
+			create f.make_html ("home.html")
+			res.put_response (f)
+		end
+end

examples/simple_file/service_file.ecf

@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="ISO-8859-1"?>
+<system xmlns="http://www.eiffel.com/developers/xml/configuration-1-9-0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.eiffel.com/developers/xml/configuration-1-9-0 http://www.eiffel.com/developers/xml/configuration-1-9-0.xsd" name="service_file" uuid="C28C4F53-9963-46C0-A080-8F13E94E7486">
+	<target name="service_file">
+		<root class="SERVICE_FILE" feature="make"/>
+		<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>
+		<library name="base" location="$ISE_LIBRARY\library\base\base-safe.ecf"/>
+		<library name="connector_nino" location="..\..\library\server\ewsgi\connectors\nino\nino-safe.ecf"/>
+		<library name="default_nino" location="..\..\library\server\wsf\default\nino-safe.ecf"/>
+		<library name="http" location="..\..\library\protocol\http\http-safe.ecf"/>
+		<library name="wsf" location="..\..\library\server\wsf\wsf-safe.ecf"/>
+		<cluster name="service_file" location=".\" recursive="true">
+			<file_rule>
+				<exclude>/EIFGENs$</exclude>
+				<exclude>/CVS$</exclude>
+				<exclude>/.svn$</exclude>
+			</file_rule>
+		</cluster>
+	</target>
+	<target name="service_file_dotnet" extends="service_file">
+		<setting name="msil_generation" value="true"/>
+	</target>
+</system>

examples/simple_file/service_file.rc

@@ -0,0 +1 @@
+

library/client/http_client/src/http_client_request.e

@@ -12,16 +12,25 @@ inherit
 
 feature {NONE} -- Initialization
 
-	make (a_url: READABLE_STRING_8; a_session: like session)
+	make (a_url: READABLE_STRING_8; a_session: like session; ctx: like context)
 			-- Initialize `Current'.
 		do
 			session := a_session
 			url := a_url
 			headers := session.headers.twin
+			if ctx /= Void then
+				context := ctx
+				import (ctx)
+			end
+		ensure
+			context_set: context = ctx
+			ctx_header_set: ctx /= Void implies across ctx.headers as ctx_h all attached headers.item (ctx_h.key) as v and then v.same_string (ctx_h.item) end
 		end
 
 	session: HTTP_CLIENT_SESSION
 
+	context: detachable HTTP_CLIENT_REQUEST_CONTEXT
+
 feature -- Access
 
 	request_method: READABLE_STRING_8
@@ -32,14 +41,23 @@ feature -- Access
 
 	headers: HASH_TABLE [READABLE_STRING_8, READABLE_STRING_8]
 
-feature -- Execution
+feature {HTTP_CLIENT_SESSION} -- Execution
 
 	import (ctx: HTTP_CLIENT_REQUEST_CONTEXT)
+		local
+			l_headers: like headers
 		do
-			headers.fill (ctx.headers)
+			l_headers := headers
+			across
+				ctx.headers as ctx_headers
+			loop
+					--| fill header from `ctx'
+					--| and use `force' to overwrite the "session" value if any
+				l_headers.force (ctx_headers.item, ctx_headers.key)
+			end
 		end
 
-	execute (ctx: detachable HTTP_CLIENT_REQUEST_CONTEXT): HTTP_CLIENT_RESPONSE
+	execute: HTTP_CLIENT_RESPONSE
 		deferred
 		end
 

library/client/http_client/src/http_client_response.e

@@ -41,8 +41,43 @@ feature -- Access
 	raw_header: READABLE_STRING_8
 			-- Raw http header of the response.	
 
+	header (a_name: READABLE_STRING_8): detachable READABLE_STRING_8
+			-- Header entry value related to `a_name'
+			-- if multiple entries, just concatenate them using comma character
+			--| See: http://www.w3.org/Protocols/rfc2616/rfc2616-sec4.html
+			--| Multiple message-header fields with the same field-name MAY be present in a message
+			--| if and only if the entire field-value for that header field is defined as a comma-separated list [i.e., #(values)].
+			--| It MUST be possible to combine the multiple header fields into one "field-name: field-value" pair,
+			--| without changing the semantics of the message, by appending each subsequent field-value to the first, each separated by a comma.
+			--| The order in which header fields with the same field-name are received is therefore significant
+			--| to the interpretation of the combined field value, and thus a proxy MUST NOT change the order of
+			--| these field values when a message is forwarded.			
+		local
+			s: detachable STRING_8
+			k,v: READABLE_STRING_8
+		do
+			across
+				headers as hds
+			loop
+				k := hds.item.key
+				if k.same_string (a_name) then
+					v := hds.item.value
+					if s = Void then
+						create s.make_from_string (v)
+					else
+						s.append_character (',')
+						s.append (v)
+					end
+				end
+			end
+			Result := s
+		end
+
 	headers: LIST [TUPLE [key: READABLE_STRING_8; value: READABLE_STRING_8]]
 			-- Computed table of http headers of the response.
+			--| We use a LIST since one might have multiple message-header fields with the same field-name
+			--| Then the user can handle those case using default or custom concatenation
+			--| (note: `header' is concatenating using comma)
 		local
 			tb: like internal_headers
 			pos, l_start, l_end, n, c: INTEGER

library/client/http_client/src/spec/libcurl/libcurl_http_client_request.e

@@ -20,9 +20,9 @@ create
 
 feature {NONE} -- Initialization
 
-	make (a_url: READABLE_STRING_8; a_request_method: like request_method; a_session: like session)
+	make (a_url: READABLE_STRING_8; a_request_method: like request_method; a_session: like session; ctx: like context)
 		do
-			make_request (a_url, a_session)
+			make_request (a_url, a_session, ctx)
 			request_method := a_request_method
 		end
 
@@ -34,7 +34,7 @@ feature -- Access
 
 feature -- Execution
 
-	execute (ctx: detachable HTTP_CLIENT_REQUEST_CONTEXT): HTTP_CLIENT_RESPONSE
+	execute: HTTP_CLIENT_RESPONSE
 		local
 			l_result: INTEGER
 			l_curl_string: CURL_STRING
@@ -45,7 +45,9 @@ feature -- Execution
 			curl: CURL_EXTERNALS
 			curl_easy: CURL_EASY_EXTERNALS
 			curl_handle: POINTER
+			ctx: like context
 		do
+			ctx := context
 			curl := session.curl
 			curl_easy := session.curl_easy
 
@@ -167,7 +169,15 @@ feature -- Execution
 					p := curl.slist_append (p, curs.key + ": " + curs.item)
 				end
 			end
-
+			if ctx /= Void then
+				if attached ctx.headers as l_headers_2 then
+					across
+						l_headers_2 as curs_2
+					loop
+						p := curl.slist_append (p, curs_2.key + ": " + curs_2.item)
+					end
+				end
+			end
 			p := curl.slist_append (p, "Expect:")
 			curl_easy.setopt_slist (curl_handle, {CURL_OPT_CONSTANTS}.curlopt_httpheader, p)
 

library/client/http_client/src/spec/libcurl/libcurl_http_client_session.e

@@ -27,16 +27,16 @@ feature -- Basic operation
 		local
 			req: HTTP_CLIENT_REQUEST
 		do
-			create {LIBCURL_HTTP_CLIENT_REQUEST} req.make (base_url + a_path, "GET", Current)
-			Result := execute_request (req, ctx)
+			create {LIBCURL_HTTP_CLIENT_REQUEST} req.make (base_url + a_path, "GET", Current, ctx)
+			Result := req.execute
 		end
 
 	head (a_path: READABLE_STRING_8; ctx: detachable HTTP_CLIENT_REQUEST_CONTEXT): HTTP_CLIENT_RESPONSE
 		local
 			req: HTTP_CLIENT_REQUEST
 		do
-			create {LIBCURL_HTTP_CLIENT_REQUEST} req.make (base_url + a_path, "HEAD", Current)
-			Result := execute_request (req, ctx)
+			create {LIBCURL_HTTP_CLIENT_REQUEST} req.make (base_url + a_path, "HEAD", Current, ctx)
+			Result := req.execute
 		end
 
 	post (a_path: READABLE_STRING_8; a_ctx: detachable HTTP_CLIENT_REQUEST_CONTEXT; data: detachable READABLE_STRING_8): HTTP_CLIENT_RESPONSE
@@ -54,7 +54,6 @@ feature -- Basic operation
 			req: HTTP_CLIENT_REQUEST
 			ctx: detachable HTTP_CLIENT_REQUEST_CONTEXT
 		do
-			create {LIBCURL_HTTP_CLIENT_REQUEST} req.make (base_url + a_path, "POST", Current)
 			ctx := a_ctx
 			if data /= Void then
 				if ctx = Void then
@@ -68,7 +67,8 @@ feature -- Basic operation
 				end
 				ctx.set_upload_filename (fn)
 			end
-			Result := execute_request (req, ctx)
+			create {LIBCURL_HTTP_CLIENT_REQUEST} req.make (base_url + a_path, "POST", Current, ctx)
+			Result := req.execute
 		end
 
 	put (a_path: READABLE_STRING_8; a_ctx: detachable HTTP_CLIENT_REQUEST_CONTEXT; data: detachable READABLE_STRING_8): HTTP_CLIENT_RESPONSE
@@ -76,7 +76,6 @@ feature -- Basic operation
 			req: HTTP_CLIENT_REQUEST
 			ctx: detachable HTTP_CLIENT_REQUEST_CONTEXT
 		do
-			create {LIBCURL_HTTP_CLIENT_REQUEST} req.make (base_url + a_path, "PUT", Current)
 			ctx := a_ctx
 			if data /= Void then
 				if ctx = Void then
@@ -84,7 +83,8 @@ feature -- Basic operation
 				end
 				ctx.set_upload_data (data)
 			end
-			Result := execute_request (req, ctx)
+			create {LIBCURL_HTTP_CLIENT_REQUEST} req.make (base_url + a_path, "PUT", Current, ctx)
+			Result := req.execute
 		end
 
 	put_file (a_path: READABLE_STRING_8; a_ctx: detachable HTTP_CLIENT_REQUEST_CONTEXT; fn: detachable READABLE_STRING_8): HTTP_CLIENT_RESPONSE
@@ -92,7 +92,6 @@ feature -- Basic operation
 			req: HTTP_CLIENT_REQUEST
 			ctx: detachable HTTP_CLIENT_REQUEST_CONTEXT
 		do
-			create {LIBCURL_HTTP_CLIENT_REQUEST} req.make (base_url + a_path, "PUT", Current)
 			ctx := a_ctx
 			if fn /= Void then
 				if ctx = Void then
@@ -100,25 +99,16 @@ feature -- Basic operation
 				end
 				ctx.set_upload_filename (fn)
 			end
-			Result := execute_request (req, ctx)
+			create {LIBCURL_HTTP_CLIENT_REQUEST} req.make (base_url + a_path, "PUT", Current, ctx)
+			Result := req.execute
 		end
 
 	delete (a_path: READABLE_STRING_8; ctx: detachable HTTP_CLIENT_REQUEST_CONTEXT): HTTP_CLIENT_RESPONSE
 		local
 			req: HTTP_CLIENT_REQUEST
 		do
-			create {LIBCURL_HTTP_CLIENT_REQUEST} req.make (base_url + a_path, "DELETE", Current)
-			Result := execute_request (req, ctx)
-		end
-
-feature {NONE} -- Implementation
-
-	execute_request (req: HTTP_CLIENT_REQUEST; ctx: detachable HTTP_CLIENT_REQUEST_CONTEXT): HTTP_CLIENT_RESPONSE
-		do
-			if ctx /= Void then
-				req.import (ctx)
-			end
-			Result := req.execute (ctx)
+			create {LIBCURL_HTTP_CLIENT_REQUEST} req.make (base_url + a_path, "DELETE", Current, ctx)
+			Result := req.execute
 		end
 
 feature {LIBCURL_HTTP_CLIENT_REQUEST} -- Curl implementation

library/protocol/http/src/http_header.e

@@ -196,13 +196,13 @@ feature -- Content related header
 	put_transfer_encoding_binary
 			-- Put "Transfer-Encoding: binary" header
 		do
-			put_transfer_encoding ("binary")
+			put_transfer_encoding (str_binary)
 		end
 
 	put_transfer_encoding_chunked
 			-- Put "Transfer-Encoding: chunked" header
 		do
-			put_transfer_encoding ("chunked")
+			put_transfer_encoding (str_chunked)
 		end
 
 	put_content_disposition (a_type: READABLE_STRING_8; a_params: detachable READABLE_STRING_8)
@@ -354,6 +354,35 @@ feature -- Cookie
 
 feature -- Status report
 
+	header_named_value (a_name: READABLE_STRING_8): detachable STRING_8
+			-- Has header item for `n'?
+		require
+			has_header: has_header_named (a_name)
+		local
+			c: like headers.new_cursor
+			n: INTEGER
+			l_line: READABLE_STRING_8
+		do
+			from
+				n := a_name.count
+				c := headers.new_cursor
+			until
+				c.after or Result /= Void
+			loop
+				l_line := c.item
+				if l_line.starts_with (a_name) then
+					if l_line.valid_index (n + 1) then
+						if l_line [n + 1] = ':' then
+							Result := l_line.substring (n + 2, l_line.count)
+							Result.left_adjust
+							Result.right_adjust
+						end
+					end
+				end
+				c.forth
+			end
+		end
+
 	has_header_named (a_name: READABLE_STRING_8): BOOLEAN
 			-- Has header item for `n'?
 		local
@@ -378,11 +407,26 @@ feature -- Status report
 		end
 
 	has_content_length: BOOLEAN
-			-- Has header "content_length"
+			-- Has header "Content-Length"
 		do
 			Result := has_header_named ({HTTP_HEADER_NAMES}.header_content_length)
 		end
 
+	has_content_type: BOOLEAN
+			-- Has header "Content-Type"
+		do
+			Result := has_header_named ({HTTP_HEADER_NAMES}.header_content_type)
+		end
+
+	has_transfer_encoding_chunked: BOOLEAN
+			-- Has "Transfer-Encoding: chunked" header
+		do
+			if has_header_named ({HTTP_HEADER_NAMES}.header_transfer_encoding) then
+				Result := attached header_named_value ({HTTP_HEADER_NAMES}.header_transfer_encoding) as v and then v.same_string (str_chunked)
+			end
+		end
+
+
 feature {NONE} -- Implementation: Header
 
 	force_header_by_name (n: detachable READABLE_STRING_8; h: READABLE_STRING_8)
@@ -456,6 +500,9 @@ feature {NONE} -- Implementation
 
 feature {NONE} -- Constants
 
+	str_binary: STRING = "binary"
+	str_chunked: STRING = "chunked"
+
 	colon_space: STRING = ": "
 	semi_colon_space: STRING = "; "
 

library/server/wsf/src/response/wsf_page_response.e

@@ -11,7 +11,11 @@ inherit
 	WSF_RESPONSE_MESSAGE
 
 create
-	make
+	make,
+	make_with_body
+
+convert
+	make_with_body ({READABLE_STRING_8, STRING_8, IMMUTABLE_STRING_8})
 
 feature {NONE} -- Initialization
 
@@ -21,6 +25,12 @@ feature {NONE} -- Initialization
 			create header.make
 		end
 
+	make_with_body (a_body: READABLE_STRING_8)
+		do
+			make
+			body := a_body
+		end
+
 feature -- Status
 
 	status_code: INTEGER
@@ -34,10 +44,24 @@ feature -- Header
 feature -- Output
 
 	send_to (res: WSF_RESPONSE)
+		local
+			b: like body
+			h: like header
 		do
+			h := header
+			b := body
 			res.set_status_code (status_code)
-			res.write_header_text (header.string)
-			if attached body as b then
+
+			if b /= Void then
+				if not h.has_content_length then
+					h.put_content_length (b.count)
+				end
+				if not h.has_content_type then
+					h.put_content_type_text_plain
+				end
+			end
+			res.write_header_text (h.string)
+			if b /= Void then
 				res.write_string (b)
 			end
 		end

library/server/wsf/src/wsf_request.e

@@ -26,19 +26,22 @@ convert
 feature {NONE} -- Initialization
 
 	make_from_wgi (r: WGI_REQUEST)
+		local
+			tb: like meta_variables_table
 		do
 			wgi_request := r
 			if attached r.meta_variables as l_vars then
-				create meta_variables_table.make (l_vars.count)
+				create tb.make (l_vars.count)
 				across
 					l_vars as c
 				loop
-					meta_variables_table.force (new_string_value (c.key, c.item), c.item)
+					tb.force (new_string_value (c.key, c.item), c.key)
 				end
 			else
-				create meta_variables_table.make (0)
+				create tb.make (0)
 			end
-			meta_variables := meta_variables_table
+			meta_variables_table := tb
+			meta_variables := tb
 			create error_handler.make
 			create uploaded_files.make (0)
 			raw_post_data_recorded := True