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guile-bootstrap / guile /test-suite /tests /web-client.test
mike dupont
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 ;;;; web-client.test --- HTTP client -*- mode: scheme; coding: utf-8; -*-
;;;;
;;;; Copyright (C) 2013 Free Software Foundation, Inc.
;;;;
;;;; This library is free software; you can redistribute it and/or
;;;; modify it under the terms of the GNU Lesser General Public
;;;; License as published by the Free Software Foundation; either
;;;; version 3 of the License, or (at your option) any later version.
;;;;
;;;; This library is distributed in the hope that it will be useful,
;;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;;;; Lesser General Public License for more details.
;;;;
;;;; You should have received a copy of the GNU Lesser General Public
;;;; License along with this library; if not, write to the Free Software
;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
(define-module (test-suite web-client)
#:use-module (web client)
#:use-module (web request)
#:use-module (web response)
#:use-module (ice-9 iconv)
#:use-module (ice-9 binary-ports)
#:use-module (test-suite lib))
(define get-request-headers:www.gnu.org/software/guile/
"GET /software/guile/ HTTP/1.1
Host: www.gnu.org
Connection: close
")
(define get-response-headers:www.gnu.org/software/guile/
"HTTP/1.1 200 OK
Date: Fri, 11 Jan 2013 10:59:11 GMT
Server: Apache/2.2.14
Accept-Ranges: bytes
Cache-Control: max-age=0
Expires: Fri, 11 Jan 2013 10:59:11 GMT
Vary: Accept-Encoding
Content-Length: 8077
Connection: close
Content-Type: text/html
Content-Language: en
")
(define get-response-body:www.gnu.org/software/guile/
"<!DOCTYPE html PUBLIC \"-//IETF//DTD HTML 2.0//EN\">
<html>
<head>
<title>GNU Guile (About Guile)</title>
<link rel=\"stylesheet\" type=\"text/css\" href=\"/gnu.css\">
<link rel=\"stylesheet\" type=\"text/css\" href=\"/software/guile/guile.css\">
<link rev=\"made\" href=\"mailto:bug-guile@gnu.org\">
</head>
<!-- If you edit these html pages directly, you're not doing yourself any
favors - these pages get updated programaticly from a pair of files. Edit
the files under the template directory instead -->
<!-- Text black on white, unvisited links blue, visited links navy,
active links red -->
<body bgcolor=\"#ffffff\" text=\"#000000\" link=\"#1f00ff\" alink=\"#ff0000\" vlink=\"#000080\">
<a name=\"top\"></a>
<table cellpadding=\"10\">
<tr>
<td>
\t<a href=\"/software/guile/\">
\t <img src=\"/software/guile/graphics/guile-banner.small.png\" alt=\"Guile\">
\t</a>
</td>
<td valign=\"bottom\">
\t<h4 align=\"right\">The GNU extension language</h4>
\t<h4 align=\"right\">About Guile</h4>
</td>
</tr>
</table>
<br />
<table border=\"0\">
<!-- Table with 2 columns. One along the left (navbar) and one along the
\t right (body). On the main page, the left links to anchors on the right,
\t or to other pages. The left has 2 sections. Top is global navigation,
\t the bottom is local nav. -->
<tr>
<td class=\"sidebar\">
\t<table cellpadding=\"4\">
\t <tr>
\t <!-- Global Nav -->
\t <td nowrap=\"\">
\t <p><b>About Guile</b><br />
\t\t<a href=\"/software/guile/guile.html\">What is Guile?</a><br />
\t\t<a href=\"/software/guile/news.html\">News</a><br />
\t\t<a href=\"/software/guile/community.html\">Community</a><br />
\t </p>
\t
\t <p><b>Documentation</b><br />
\t\t<a href=\"/software/guile/docs/docs.html\">Manuals</a><br />
\t\t<a href=\"/software/guile/docs/faq/guile-faq.html\">FAQ's</a><br />
\t </p>
\t <p><b>Download</b><br />
\t\t<a href=\"/software/guile/download.html#releases\">Releases</a><br />
\t\t<a href=\"/software/guile/download.html#git\">Repository</a><br />
\t\t<a href=\"/software/guile/download.html#snapshots\">Snapshots</a><br />
\t </p>
\t <p><b>Projects</b><br />
\t\t<a href=\"/software/guile/gnu-guile-projects.html#Core\">Core</a><br />
\t\t<a href=\"/software/guile/gnu-guile-projects.html#GUI\">GUI</a><br />
\t\t<a href=\"/software/guile/gnu-guile-projects.html#File-Formats\">File Formats</a><br />
\t\t<a href=\"/software/guile/gnu-guile-projects.html#Networking\">Networking</a><br />
\t\t<a href=\"/software/guile/gnu-guile-projects.html#Tools\">Tools</a><br />
\t\t<a href=\"/software/guile/gnu-guile-projects.html#Applications\">Applications</a><br />
\t </p>
\t
\t <p><b>Development</b><br />
\t\t<a href=\"http://savannah.gnu.org/projects/guile/\">Project summary</a><br />
\t\t<a href=\"/software/guile/developers.html\">Helping out</a><br />
\t\t<a href=\"/software/guile/ideas.html\">Cool ideas</a><br />
\t </p>
\t <p><b>Resources</b><br>
\t\t<a href=\"/software/guile/resources.html#guile_resources\">Guile Resources</a><br />
\t\t<a href=\"/software/guile/resources.html##scheme_resources\">Scheme Resources</a><br />
\t </p>
\t </td>
\t </tr>
\t <tr>
\t <!-- Global Nav End -->
\t
<tr>
<td>
<p><a href=\"http://www.gnu.org/\">GNU Project home page</a></p>
<p><a href=\"#whatisit\">What is Guile?</a></p>
<p><a href=\"#get\">Getting Guile</a></p>
</td>
</tr>
\t </tr>
\t</table>
</td>
<td class=\"rhs-body\">
\t
<a name=\"whatisit\"><h3 align=\"left\">What is Guile? What can it do for you?</h3></a>
<p>
Guile is the <em>GNU Ubiquitous Intelligent Language for Extensions</em>,
the official extension language for the
<a href=\"http://www.gnu.org/\">GNU operating system</a>.
</p>
<p>
Guile is a library designed to help programmers create flexible
applications. Using Guile in an application allows the application's
functionality to be <em>extended</em> by users or other programmers with
plug-ins, modules, or scripts. Guile provides what might be described as
\"practical software freedom,\" making it possible for users to customize an
application to meet their needs without digging into the application's
internals.
</p>
<p>
There is a long list of proven applications that employ extension languages.
Successful and long-lived examples of Free Software projects that use
Guile are <a href=\"http://www.texmacs.org/\">TeXmacs</a>,
<a href=\"http://lilypond.org/\">LilyPond</a>, and
<a href=\"http://www.gnucash.org/\">GnuCash</a>.
</p>
<h3>Guile is a programming language</h3>
<p>
Guile is an interpreter and compiler for
the <a href=\"http://schemers.org/\">Scheme</a> programming language, a clean
and elegant dialect of Lisp. Guile is up to date with recent Scheme
standards, supporting the
<a href=\"http://www.schemers.org/Documents/Standards/R5RS/\">Revised<sup>5</sup></a>
and most of the <a href=\"http://www.r6rs.org/\">Revised<sup>6</sup></a> language
reports (including hygienic macros), as well as many
<a href=\"http://srfi.schemers.org/\">SRFIs</a>. It also comes with a library
of modules that offer additional features, like an HTTP server and client,
XML parsing, and object-oriented programming.
</p>
<h3>Guile is an extension language platform</h3>
<p>
Guile is an efficient virtual machine that executes a portable instruction
set generated by its optimizing compiler, and integrates very easily with C
and C++ application code. In addition to Scheme, Guile includes compiler
front-ends for
<a href=\"http://www.ecma-international.org/publications/standards/Ecma-262.htm\">ECMAScript</a>
and <a href=\"http://www.emacswiki.org/cgi-bin/wiki?EmacsLisp\">Emacs Lisp</a>
(support for <a href=\"http://www.lua.org/\">Lua</a> is underway), which means
your application can be extended in the language (or languages) most
appropriate for your user base. And Guile's tools for parsing and compiling
are exposed as part of its standard module set, so support for additional
languages can be added without writing a single line of C.
</p>
<h3>Guile gives your programs more power</h3>
<p>
Using Guile with your program makes it more usable. Users don't
need to learn the plumbing of your application to customize it; they just
need to understand Guile, and the access you've provided. They can easily
trade and share features by downloading and creating scripts, instead of
trading complex patches and recompiling their applications. They don't need
to coordinate with you or anyone else. Using Guile, your application has a
full-featured scripting language right from the beginning, so you can focus
on the novel and attention-getting parts of your application.
</p>
<a name=\"get\"><h2 align=\"center\">How do I get Guile?</h2></a>
<ul>
<li>The current <em>stable</em> release is
<a href=\"ftp://ftp.gnu.org/gnu/guile/guile-2.0.7.tar.gz\">2.0.7</a>.
</li>
</ul>
<p>
See the <a href=\"download.html\">Download</a> page for additional ways of
getting Guile.
</p>
</td>
</tr>
</table>
<br />
<div class=\"copyright\">
<p>
Please send FSF &amp; GNU inquiries &amp; questions to
<a href=\"mailto:gnu@gnu.org\"><em>[email protected]</em></a>. There are also
<a href=\"/home.html#ContactInfo\">other ways to contact</a> the FSF.
</p>
<p>
Please send comments on these web pages to
<a href=\"mailto:bug-guile@gnu.org\"><em>[email protected]</em></a>, send
other questions to <a href=\"mailto:gnu@gnu.org\"><em>[email protected]</em></a>.
</p>
<p>
Copyright (C) 2012 Free Software Foundation, Inc.
</p>
<p>
Verbatim copying and distribution of this entire web page is
permitted in any medium, provided this notice is preserved.<P>
Updated:
<!-- timestamp start -->
$Date: 2012/11/30 00:16:15 $ $Author: civodul $
<!-- timestamp end -->
</p>
</div>
</body>
</html>
")
(define head-request-headers:www.gnu.org/software/guile/
"HEAD /software/guile/ HTTP/1.1
Host: www.gnu.org
Connection: close
")
(define head-response-headers:www.gnu.org/software/guile/
"HTTP/1.1 200 OK
Date: Fri, 11 Jan 2013 11:03:14 GMT
Server: Apache/2.2.14
Accept-Ranges: bytes
Cache-Control: max-age=0
Expires: Fri, 11 Jan 2013 11:03:14 GMT
Vary: Accept-Encoding
Content-Length: 8077
Connection: close
Content-Type: text/html
Content-Language: en
")
;; Unfortunately, POST to http://www.gnu.org/software/guile/ succeeds!
(define post-request-headers:www.apache.org/
"POST / HTTP/1.1
Host: www.apache.org
Connection: close
")
(define post-response-headers:www.apache.org/
"HTTP/1.1 405 Method Not Allowed
Date: Fri, 11 Jan 2013 11:04:34 GMT
Server: Apache/2.4.3 (Unix) OpenSSL/1.0.0g
Allow: TRACE
Content-Length: 314
Connection: close
Content-Type: text/html; charset=iso-8859-1
")
(define post-response-body:www.apache.org/
"<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\">
<html><head>
<title>405 Method Not Allowed</title>
</head><body>
<h1>Method Not Allowed</h1>
<p>The requested method POST is not allowed for the URL /.</p>
<hr>
<address>Apache/2.4.3 (Unix) OpenSSL/1.0.0g Server at www.apache.org Port 80</address>
</body></html>
")
(define put-request-headers:www.apache.org/
"PUT / HTTP/1.1
Host: www.apache.org
Connection: close
")
(define put-response-headers:www.apache.org/
"HTTP/1.1 405 Method Not Allowed
Date: Fri, 11 Jan 2013 11:04:34 GMT
Server: Apache/2.4.3 (Unix) OpenSSL/1.0.0g
Allow: TRACE
Content-Length: 313
Connection: close
Content-Type: text/html; charset=iso-8859-1
")
(define put-response-body:www.apache.org/
"<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\">
<html><head>
<title>405 Method Not Allowed</title>
</head><body>
<h1>Method Not Allowed</h1>
<p>The requested method PUT is not allowed for the URL /.</p>
<hr>
<address>Apache/2.4.3 (Unix) OpenSSL/1.0.0g Server at www.apache.org Port 80</address>
</body></html>
")
(define delete-request-headers:www.apache.org/
"DELETE / HTTP/1.1
Host: www.apache.org
Connection: close
")
(define delete-response-headers:www.apache.org/
"HTTP/1.1 405 Method Not Allowed
Date: Fri, 11 Jan 2013 11:07:19 GMT
Server: Apache/2.4.3 (Unix) OpenSSL/1.0.0g
Allow: TRACE
Content-Length: 316
Connection: close
Content-Type: text/html; charset=iso-8859-1
")
(define delete-response-body:www.apache.org/
"<!DOCTYPE HTML PUBLIC \"-//IETF//DTD HTML 2.0//EN\">
<html><head>
<title>405 Method Not Allowed</title>
</head><body>
<h1>Method Not Allowed</h1>
<p>The requested method DELETE is not allowed for the URL /.</p>
<hr>
<address>Apache/2.4.3 (Unix) OpenSSL/1.0.0g Server at www.apache.org Port 80</address>
</body></html>
")
(define options-request-headers:www.apache.org/
"OPTIONS / HTTP/1.1
Host: www.apache.org
Connection: close
")
(define options-response-headers:www.apache.org/
"HTTP/1.1 200 OK
Date: Fri, 11 Jan 2013 11:08:31 GMT
Server: Apache/2.4.3 (Unix) OpenSSL/1.0.0g
Allow: OPTIONS,GET,HEAD,POST,TRACE
Cache-Control: max-age=3600
Expires: Fri, 11 Jan 2013 12:08:31 GMT
Content-Length: 0
Connection: close
Content-Type: text/html; charset=utf-8
")
;; This depends on the exact request that we send. I copied this off
;; the console with an "nc" session, so it doesn't include the CR bytes.
;; But that's OK -- we just have to decode the body as an HTTP request
;; and check that it's the same.
(define trace-request-headers:www.apache.org/
"TRACE / HTTP/1.1\r
Host: www.apache.org\r
Connection: close\r
\r
")
(define trace-response-headers:www.apache.org/
"HTTP/1.1 200 OK\r
Date: Fri, 11 Jan 2013 12:36:13 GMT\r
Server: Apache/2.4.3 (Unix) OpenSSL/1.0.0g\r
Connection: close\r
Transfer-Encoding: chunked\r
Content-Type: message/http\r
\r
")
(define trace-response-body:www.apache.org/
"3d\r
TRACE / HTTP/1.1\r
Host: www.apache.org\r
Connection: close\r
\r
\r
0\r
\r
")
(define (requests-equal? r1 r2)
(and (equal? (request-method r1) (request-method r2))
(equal? (request-uri r1) (request-uri r2))
(equal? (request-version r1) (request-version r2))
(equal? (request-headers r1) (request-headers r2))))
(define (responses-equal? r1 r2)
(and (equal? (response-code r1) (response-code r2))
(equal? (response-version r1) (response-version r2))
(equal? (response-headers r1) (response-headers r2))))
(define* (run-with-http-transcript
expected-request expected-request-body request-body-encoding
response response-body response-body-encoding
proc)
(let ((reading? #f)
(writing? #t)
(response-port (open-input-string response))
(response-body-port (open-bytevector-input-port
(string->bytevector response-body
response-body-encoding))))
(call-with-values (lambda () (open-bytevector-output-port))
(lambda (request-port get-bytevector)
(define (put-char c)
(unless writing?
(error "Port closed for writing"))
(put-u8 request-port (char->integer c)))
(define (put-string s)
(string-for-each put-char s)
(set! writing? #f)
(set! reading? #t)
(let* ((p (open-bytevector-input-port (get-bytevector)))
(actual-request (read-request p))
(actual-body (read-request-body actual-request)))
(pass-if "requests equal"
(requests-equal? actual-request
(call-with-input-string expected-request
read-request)))
(pass-if "request bodies equal"
(equal? (or actual-body #vu8())
(string->bytevector expected-request-body
request-body-encoding)))))
(define (get-char)
(unless reading?
(error "Port closed for reading"))
(let ((c (read-char response-port)))
(if (char? c)
c
(let ((u8 (get-u8 response-body-port)))
(if (eof-object? u8)
u8
(integer->char u8))))))
(define (close)
(when writing?
(unless (eof-object? (get-u8 response-body-port))
(error "Failed to consume all of body"))))
(let ((soft-port (make-soft-port
(vector put-char put-string #f get-char close)
"rw")))
;; Arrange it so that the only time our put-char/put-string
;; functions are called is during force-output.
(setvbuf soft-port 'block 10000)
(proc soft-port))))))
(define* (check-transaction method uri
request-headers request-body request-body-encoding
response-headers response-body response-body-encoding
proc
#:key (response-body-comparison response-body))
(with-test-prefix (string-append method " " uri)
(run-with-http-transcript
request-headers request-body request-body-encoding
response-headers response-body response-body-encoding
(lambda (port)
(call-with-values (lambda ()
(proc uri #:port port))
(lambda (response body)
(pass-if "response equal"
(responses-equal?
response
(call-with-input-string response-headers read-response)))
(pass-if "response body equal"
(equal? (or body "") response-body-comparison))))))))
(check-transaction
"GET" "http://www.gnu.org/software/guile/"
get-request-headers:www.gnu.org/software/guile/ "" "iso-8859-1"
get-response-headers:www.gnu.org/software/guile/
get-response-body:www.gnu.org/software/guile/ "iso-8859-1"
http-get)
(check-transaction
"HEAD" "http://www.gnu.org/software/guile/"
head-request-headers:www.gnu.org/software/guile/ "" "iso-8859-1"
head-response-headers:www.gnu.org/software/guile/ "" "iso-8859-1"
http-head)
(check-transaction
"POST" "http://www.apache.org/"
post-request-headers:www.apache.org/ "" "iso-8859-1"
post-response-headers:www.apache.org/
post-response-body:www.apache.org/ "iso-8859-1"
http-post)
(check-transaction
"PUT" "http://www.apache.org/"
put-request-headers:www.apache.org/ "" "iso-8859-1"
put-response-headers:www.apache.org/
put-response-body:www.apache.org/ "iso-8859-1"
http-put)
(check-transaction
"DELETE" "http://www.apache.org/"
delete-request-headers:www.apache.org/ "" "iso-8859-1"
delete-response-headers:www.apache.org/
delete-response-body:www.apache.org/ "iso-8859-1"
http-delete)
(check-transaction
"OPTIONS" "http://www.apache.org/"
options-request-headers:www.apache.org/ "" "utf-8"
options-response-headers:www.apache.org/ "" "utf-8"
http-options)
(check-transaction
"TRACE" "http://www.apache.org/"
trace-request-headers:www.apache.org/ "" "iso-8859-1"
trace-response-headers:www.apache.org/
trace-response-body:www.apache.org/ "iso-8859-1"
http-trace
#:response-body-comparison
;; The body will be message/http, which is logically a sequence of
;; bytes, not characters. It happens that iso-8859-1 can encode our
;; body and is compatible with the headers as well.
(string->bytevector trace-request-headers:www.apache.org/
"iso-8859-1"))