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test_http.pl
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test_http.pl
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:- module(test_http,
[ test_http/0
]).
:- asserta(user:file_search_path(foreign, '.')).
:- asserta(user:file_search_path(foreign, '../clib')).
:- asserta(user:file_search_path(foreign, '../sgml')).
:- asserta(user:file_search_path(foreign, '../zlib')).
:- asserta(user:file_search_path(library, '..')).
:- asserta(user:file_search_path(library, '../sgml')).
:- asserta(user:file_search_path(library, '../plunit')).
:- asserta(user:file_search_path(library, '../clib')).
:- asserta(user:file_search_path(library, '../zlib')).
:- use_module(library(http/thread_httpd)).
:- use_module(library(http/http_dispatch)).
:- use_module(library(http/html_write)).
:- use_module(library(http/http_parameters)).
:- use_module(library(http/http_json)).
:- use_module(library(http/http_header)).
:- use_module(library(http/http_open)).
:- use_module(library(http/http_client)).
:- use_module(library(http/http_stream)).
:- use_module(library(plunit)).
:- use_module(library(readutil)).
:- use_module(library(debug)).
:- use_module(library(option)).
:- use_module(library(lists)).
:- use_module(library(zlib), []). % plugin
test_http :-
run_tests([ http_open,
http_get,
http_server
]).
run_network_tests :-
getenv('SWIPL_PUBLIC_NETWORK_TESTS', true),
exists_source(library(ssl)).
:- begin_tests(http_open, [condition(run_network_tests)]).
test(read, true) :-
http_open('http://www.swi-prolog.org/', In,
[status_code(Code)]),
assertion(Code == 200),
read_stream_to_codes(In, Codes),
close(In),
contains_codes("href=\"/Download.html\"", Codes).
test(redirect, true) :-
http_open('http://www.swi-prolog.org', In, []),
read_stream_to_codes(In, Codes),
close(In),
contains_codes("href=\"/Download.html\"", Codes).
test(chunked, true(Codes == Ref)) :-
http_open('http://www.swi-prolog.org/Tests/chunked/data', In, []),
read_stream_to_codes(In, Codes),
close(In),
chunked_data(Ref).
:- end_tests(http_open).
:- begin_tests(http_get, [condition(run_network_tests)]).
test(read, true) :-
http_get('http://www.swi-prolog.org/', Data, [to(codes)]),
contains_codes("http://www.swi-prolog.org", Data).
test(chunked, true(Data == Ref)) :-
http_get('http://www.swi-prolog.org/Tests/chunked/data',
Data, [to(codes)]),
chunked_data(Ref).
:- end_tests(http_get).
:- begin_tests(http_server).
test(connection, Close == close) :-
setup_call_cleanup(
http_server(http_dispatch, [silent(true), port(localhost:Port)]),
( format(atom(URL), 'http://localhost:~w/reply-source', [Port]),
setup_call_cleanup(
open_null_stream(Out),
setup_call_cleanup(
http_open(URL, Stream,
[ header(connection, Close)
]),
copy_stream_data(Stream, Out),
close(Stream)),
close(Out))
),
http_stop_server(Port, [])).
test(ok_html_1, Code == 200) :-
request('/ok/html_1', Code, Type, Content, []),
assertion(html_content(Type, Content,
"world")).
test(ok_html_unicode, Code == 200) :-
request('/ok/html_unicode', Code, Type, Content, []),
assertion(html_content(Type, Content,
"world")).
test(ok_bytes_prolog, Code == 200) :-
request('/ok/bytes/prolog', Code, Type, Content, []),
assertion(prolog_content(Type, Content,
hello(world))).
test(not_found, Code == 404) :-
request('/not-found', Code, Type, Content, []),
assertion(html_content(Type, Content,
"was not found on this server")).
test(forbidden, Code == 403) :-
request('/forbidden', Code, Type, Content, []),
assertion(html_content(Type, Content,
"permission to access")).
test(method_not_allowed, Code == 405) :-
request('/method_not_allowed', Code, Type, Content,
[ method(delete) ]),
assertion(html_content(Type, Content,
"not support method")).
test(not_modified, Code == 304) :-
request('/not_modified', Code, _Type, Content, [redirect(false)]),
assertion(Content == "").
test(moved, Code == 301) :-
request('/moved', Code, Type, Content, [redirect(false)]),
assertion(html_content(Type, Content,
"has moved")).
test(moved_temporary, Code == 302) :-
request('/moved-temporary', Code, Type, Content, [redirect(false)]),
assertion(html_content(Type, Content,
"is currently")).
test(see_also, Code == 303) :-
request('/see-also', Code, Type, Content, [redirect(false)]),
assertion(html_content(Type, Content,
"other document")).
test(server_error, Code == 500) :-
request('/server-error', Code, Type, Content, []),
assertion(html_content(Type, Content,
"zero_divisor")).
test(unavailable, Code == 503) :-
request('/unavailable', Code, Type, Content, []),
assertion(html_content(Type, Content,
"Shut down")).
test(resource_error, Code == 503) :-
request('/resource-error', Code, Type, Content, []),
assertion(html_content(Type, Content,
"patience")).
test(not_acceptable, Code == 406) :-
request('/not_acceptable', Code, Type, Content, []),
assertion(html_content(Type, Content,
"I reject")).
test(bad_request, Code == 400) :-
request('/bad-request', Code, Type, Content, []),
assertion(html_content(Type, Content,
"hello")).
test(created, Code == 201) :-
request('/created', Code, Type, Content,
[ post(json("world")),
header(location, Location)
]),
assertion(Location == '/brave-new-world'),
assertion(html_content(Type, Content,
"brave-new-world")).
test(fail, Code == 500) :-
request('/fail', Code, Type, Content, []),
assertion(html_content(Type, Content,
"goal unexpectedly failed")).
request(Path, Code, Type, Content, ExtraHdrs) :-
setup_call_cleanup(
http_server(http_dispatch, [silent(true), port(localhost:Port)]),
( format(atom(URL), 'http://localhost:~w~w', [Port, Path]),
setup_call_cleanup(
http_open(URL, Stream,
[ status_code(Code),
header(content_type, Type),
header(content_length, Len)
| ExtraHdrs
]),
read_string(Stream, CLen, Content),
close(Stream))
),
http_stop_server(Port, [])),
( Len == ''
-> assertion(CLen == 0)
; assertion(CLen == Len)
).
:- http_handler('/ok/html_1', ok_html_1, []).
:- http_handler('/ok/html_unicode', ok_html_unicode, []).
:- http_handler('/ok/bytes/prolog', ok_bytes_prolog, []).
:- http_handler('/reply-source', reply_source, []).
:- http_handler('/forbidden', forbidden, []).
:- http_handler('/method_not_allowed', method_not_allowed,
[methods([get])]).
:- http_handler('/moved', http_redirect(moved, '/moved-to'), []).
:- http_handler('/moved-temporary', http_redirect(moved_temporary, '/moved-to'), []).
:- http_handler('/see-also', http_redirect(see_other, '/moved-to'), []).
:- http_handler('/server-error', server_error, []).
:- http_handler('/not_modified', not_modified, []).
:- http_handler('/unavailable', unavailable, []).
:- http_handler('/not_acceptable', not_acceptable, []).
:- http_handler('/resource-error', resource_error_handler, []).
:- http_handler('/bad-request', bad_request_handler, []).
:- http_handler('/created', created, []).
:- http_handler('/fail', fail, []).
ok_html_1(_Request) :-
reply_html_page(
title('Test'),
h1('Hello world')).
ok_html_unicode(_Request) :-
numlist(1000, 1050, Text),
reply_html_page(
title('Test'),
[ h1('Hello world'),
p([], '~s'-[Text])
]).
ok_bytes_prolog(_Request) :-
string_codes("hello(world)", Bytes),
throw(http_reply(bytes('application/x-prolog', Bytes))).
reply_source(Request) :-
module_property(test_http, file(File)),
http_reply_file(File, [unsafe(true)], Request).
forbidden(Request) :-
option(path(Path), Request),
throw(http_reply(forbidden(Path))).
method_not_allowed(Request) :-
option(method(Method), Request),
format('Content-type: text/plain~n~n'),
format('Method ~p should not have been alowed', [Method]).
server_error(_Request) :-
Num = 1,
Den = 0,
X is Num/Den,
format('Content-type: text/plain~n~n'),
format('X = ~q~n', [X]).
not_modified(_Request) :-
throw(http_reply(not_modified)).
unavailable(_Request) :-
throw(http_reply(unavailable(p(['Shut down'])))).
not_acceptable(_Request) :-
throw(http_reply(not_acceptable(p(['I reject'])))).
resource_error_handler(_Request) :-
resource_error(patience).
bad_request_handler(Request) :-
http_parameters(Request, [ hello(_,[]) ]).
created(Request) :-
http_read_json_dict(Request, _Dict),
throw(http_reply(created('/brave-new-world'))).
fail(_Request) :-
fail.
:- end_tests(http_server).
/*******************************
* UTIL *
*******************************/
html_content(Type, Content, Needle) :-
http_parse_header_value(content_type, Type, media(text/html, _Attributes)),
contains_codes(Needle, Content).
contains_codes(Needle, Haystack) :-
to_string(Needle, NeedleS),
to_string(Haystack, HaystackS),
sub_string(HaystackS, _, _, _, NeedleS),
!.
to_string(S, S) :-
string(S),
!.
to_string(A, S) :-
atom(A),
!,
atom_string(A, S).
to_string(Codes, S) :-
string_codes(S, Codes).
prolog_content(Type, Content, Match) :-
http_parse_header_value(content_type, Type,
media(application/'x-prolog', _Attributes)),
term_string(Term, Content),
Term =@= Match.
%! chunked_data(-String) is det.
%
% Content of the chunked data that is sent by cgi-bin/chunked.
chunked_data(S) :-
findall(C,
( between(1, 1000, X),
C is "a" + X mod 26
), S0),
append(S0, S0, S).