⚠️ Warning: This is a draft ⚠️
This means it might contain formatting issues, incorrect code, conceptual problems, or other severe issues.
If you want to help to improve and eventually enable this page, please fork RosettaGit's repository and open a merge request on GitHub.
{{task|Programming environment operations}} [[Category:Networking and Web Interaction]]
;Task: Access and print a [[wp:Uniform Resource Locator|URL's]] content (the located resource) to the console.
There is a separate task for [[HTTPS Request]]s.
8th
"http://www.rosettacode.org" net:get drop >s .
ABAP
This works for ABAP Version 7.40 and above
report z_http.
cl_http_client=>create_by_url(
exporting
url = `http://rosettacode.org/robots.txt`
importing
client = data(http_client)
exceptions
argument_not_found = 1
plugin_not_active = 2
internal_error = 3
others = 4 ).
if sy-subrc <> 0.
data(error_message) = switch string( sy-subrc
when 1 then `argument_not_found`
when 2 then `plugin_not_active`
when 3 then `internal_error`
when 4 then `other error` ).
write error_message.
exit.
endif.
data(rest_http_client) = cast if_rest_client( new cl_rest_http_client( http_client ) ).
rest_http_client->get( ).
data(response_string) = rest_http_client->get_response_entity( )->get_string_data( ).
split response_string at cl_abap_char_utilities=>newline into table data(output_table).
loop at output_table assigning field-symbol(<output_line>).
write / <output_line>.
endloop.
{{out}}
User-agent: *
Allow: /mw/images/
Allow: /mw/skins/
Allow: /mw/title.png
Allow: /mw/resources/
Disallow: /w/
Disallow: /mw/
Disallow: /wiki/Special:
ActionScript
package
{
import flash.display.Sprite;
import flash.events.Event;
import flash.net.*;
public class RequestExample extends Sprite
{
public function RequestExample()
{
var loader:URLLoader = new URLLoader();
loader.addEventListener(Event.COMPLETE, loadComplete);
loader.load(new URLRequest("http://www.rosettacode.org"));
}
private function loadComplete(evt:Event):void
{
trace(evt.target.data);
}
}
}
Ada
{{libheader|AWS}}
with Ada.Text_IO; use Ada.Text_IO;
with AWS.Client;
with AWS.Response;
procedure HTTP_Request is
begin
Put_Line (AWS.Response.Message_Body (AWS.Client.Get (URL => "http://www.rosettacode.org")));
end HTTP_Request;
ALGOL 68
{{works with|ALGOL 68|Revision 1 - however ''grep in string'', ''http content'' and ''str error'' are from a non-standard library}}
{{works with|ALGOL 68G|Any - tested with release [http://sourceforge.net/projects/algol68/files/algol68g/algol68g-1.18.0/algol68g-1.18.0-9h.tiny.el5.centos.fc11.i386.rpm/download 1.18.0-9h.tiny]}} {{wont work with|ELLA ALGOL 68|Any (with appropriate job cards) - tested with release [http://sourceforge.net/projects/algol68/files/algol68toc/algol68toc-1.8.8d/algol68toc-1.8-8d.fc9.i386.rpm/download 1.8-8d] - due to extensive use of ''grep in string'' and ''http content''}}
STRING domain="rosettacode.org";
STRING page="wiki/Main_Page";
STRING re success="^HTTP/[0-9.]* 200";
STRING re result description="^HTTP/[0-9.]* [0-9]+ [a-zA-Z ]*";
STRING re doctype ="\s\s<!DOCTYPE html PUBLIC ""[^>]+"">\s+";
PROC html page = (REF STRING page) BOOL: (
BOOL out=grep in string(re success, page, NIL, NIL) = 0;
IF INT start, end;
grep in string(re result description, page, start, end) = 0
THEN
page:=page[end+1:];
IF grep in string(re doctype, page, start, end) = 0
THEN page:=page[start+2:]
ELSE print ("unknown format retrieving page")
FI
ELSE print ("unknown error retrieving page")
FI;
out
);
IF STRING reply;
INT rc =
http content (reply, domain, "http://"+domain+"/"+page, 0);
rc = 0 AND html page (reply)
THEN print (reply)
ELSE print (strerror (rc))
FI
Arturo
use ~net
print $(download "http://google.com")
{{out}}
<!doctype html><html itemscope="" itemtype="http://schema.org/WebPage" lang="es"><head><meta content="Google.es permite acceder a la información mundial en castellano, catalán, gallego, euskara e inglés." name="description"><meta content="noodp" name="robots"><meta content="text/html; charset=UTF-8" http-equiv="Content-Type"><meta content="/images/branding/googleg/1x/googleg_standard_color_128dp.png" itemprop="image"><title>Google</title><script nonce="mEe5oG98axwLddedgOh1JA==">(function(){window.google={kEI:'lp2lXbjlCJGKauK8o9AB',kEXPI:'0,18167,1335579,5663,730,224,510,18,228,819,1535,1617,378,206,1017,53,173,1163,798,10,50,211,452,319,19,96,161,89,193,122,766,81,176,221,1130704,1197793,230,302939,26305,1294,12383,4855,32692,15247,867,12163,16521,363,3320,5505,2436,5948,1119,2,579,727,2431,1362,4323,4967,774,2250,4744,3118,6196,1719,1808,1976,2044,8909,5071,226,897,1119,38,920,2090,2975,2736,49,2606,315,91,2,632,3240,4191,1571,2303,2883,19,319,235,884,904,101,2024,1,370,2778,917,261,731,509,777,7,2796,887,80,601,11,14,1279,2212,202,37,286,5,1252,327,513,324,193,1466,8,48,1
[output truncated]
AutoHotkey
UrlDownloadToFile, http://rosettacode.org, url.html
Run, cmd /k type url.html
AWK
{{works with|gawk}}
BEGIN {
site="en.wikipedia.org"
path="/wiki/"
name="Rosetta_Code"
server = "/inet/tcp/0/" site "/80"
print "GET " path name " HTTP/1.0" |& server
print "Host: " site |& server
print "\r\n\r\n" |& server
while ( (server |& getline fish) > 0 ) {
if ( ++scale == 1 )
ship = fish
else
ship = ship "\n" fish
}
close(server)
print ship
}
BaCon
'
' Read and display a website
'
IF AMOUNT(ARGUMENT$) = 1 THEN
website$ = "www.basic-converter.org"
ELSE
website$ = TOKEN$(ARGUMENT$, 2)
ENDIF
OPEN website$ & ":80" FOR NETWORK AS mynet
SEND "GET / HTTP/1.1\r\nHost: " & website$ & "\r\n\r\n" TO mynet
REPEAT
RECEIVE dat$ FROM mynet
total$ = total$ & dat$
UNTIL ISFALSE(WAIT(mynet, 500))
CLOSE NETWORK mynet
PRINT total$
Batch File
curl.exe -s -L http://rosettacode.org/
BBC BASIC
{{works with|BBC BASIC for Windows}}
SYS "LoadLibrary", "URLMON.DLL" TO urlmon%
SYS "GetProcAddress", urlmon%, "URLDownloadToFileA" TO URLDownloadToFile
url$ = "http://www.bbcbasic.co.uk/aboutus.html"
file$ = @tmp$ + "rosetta.tmp"
SYS URLDownloadToFile, 0, url$, file$, 0, 0 TO fail%
IF fail% ERROR 100, "File download failed"
OSCLI "TYPE """ + file$ + """"
Biferno
simple one-liner using httpExt and quick print $
$httpExt.ExecRemote("www.tabasoft.it")
C
{{libheader|libcurl}}
#include <stdio.h>
#include <stdlib.h>
#include <curl/curl.h>
int
main(void)
{
CURL *curl;
char buffer[CURL_ERROR_SIZE];
if ((curl = curl_easy_init()) != NULL) {
curl_easy_setopt(curl, CURLOPT_URL, "http://www.rosettacode.org/");
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1);
curl_easy_setopt(curl, CURLOPT_ERRORBUFFER, buffer);
if (curl_easy_perform(curl) != CURLE_OK) {
fprintf(stderr, "%s\n", buffer);
return EXIT_FAILURE;
}
curl_easy_cleanup(curl);
}
return EXIT_SUCCESS;
}
C++
#include <winsock2.h>
#include <ws2tcpip.h>
#include <iostream>
int main() {
WSADATA wsaData;
WSAStartup( MAKEWORD( 2, 2 ), &wsaData );
addrinfo *result = NULL;
addrinfo hints;
ZeroMemory( &hints, sizeof( hints ) );
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
hints.ai_protocol = IPPROTO_TCP;
getaddrinfo( "74.125.45.100", "80", &hints, &result ); // http://www.google.com
SOCKET s = socket( result->ai_family, result->ai_socktype, result->ai_protocol );
connect( s, result->ai_addr, (int)result->ai_addrlen );
freeaddrinfo( result );
send( s, "GET / HTTP/1.0\n\n", 16, 0 );
char buffer[512];
int bytes;
do {
bytes = recv( s, buffer, 512, 0 );
if ( bytes > 0 )
std::cout.write(buffer, bytes);
} while ( bytes > 0 );
return 0;
}
{{libheader|U++}}
#include <Web/Web.h>
using namespace Upp;
CONSOLE_APP_MAIN
{
Cout() << HttpClient("www.rosettacode.org").ExecuteRedirect();
}
C#
using System;
using System.Text;
using System.Net;
class Program
{
static void Main(string[] args)
{
WebClient wc = new WebClient();
string content = wc.DownloadString("http://www.google.com");
Console.WriteLine(content);
}
}
=={{header|Caché ObjectScript}}==
USER>Set HttpRequest=##class(%Net.HttpRequest).%New()
USER>Set HttpRequest.Server="checkip.dyndns.org"
USER>Do HttpRequest.Get("/")
USER>Do HttpRequest.HttpResponse.Data.OutputToDevice()
Clojure
Using the Java API:
(defn get-http [url]
(let [sc (java.util.Scanner.
(.openStream (java.net.URL. url)))]
(while (.hasNext sc)
(println (.nextLine sc)))))
(get-http "http://www.rosettacode.org")
Using clojure.contrib.http.agent:
(ns example
(:use [clojure.contrib.http.agent :only (string http-agent)]))
(println (string (http-agent "http://www.rosettacode.org/")))
{{works with|Clojure|1.2}}
(print (slurp "http://www.rosettacode.org/"))
COBOL
Tested with GnuCOBOL
SOURCE FORMAT IS FIXED
identification division.
program-id. curl-rosetta.
environment division.
configuration section.
repository.
function read-url
function all intrinsic.
data division.
working-storage section.
copy "gccurlsym.cpy".
01 web-page pic x(16777216).
01 curl-status usage binary-long.
01 cli pic x(7) external.
88 helping values "-h", "-help", "help", spaces.
88 displaying value "display".
88 summarizing value "summary".
*> ***************************************************************
procedure division.
accept cli from command-line
if helping then
display "./curl-rosetta [help|display|summary]"
goback
end-if
*>
*> Read a web resource into fixed ram.
*> Caller is in charge of sizing the buffer,
*> (or getting trickier with the write callback)
*> Pass URL and working-storage variable,
*> get back libcURL error code or 0 for success
move read-url("http://www.rosettacode.org", web-page)
to curl-status
perform check
perform show
goback.
*> ***************************************************************
*> Now tesing the result, relying on the gccurlsym
*> GnuCOBOL Curl Symbol copy book
check.
if curl-status not equal zero then
display
curl-status " "
CURLEMSG(curl-status) upon syserr
end-if
.
*> And display the page
show.
if summarizing then
display "Length: " stored-char-length(web-page)
end-if
if displaying then
display trim(web-page trailing) with no advancing
end-if
.
REPLACE ALSO ==:EXCEPTION-HANDLERS:== BY
==
*> informational warnings and abends
soft-exception.
display space upon syserr
display "--Exception Report-- " upon syserr
display "Time of exception: " current-date upon syserr
display "Module: " module-id upon syserr
display "Module-path: " module-path upon syserr
display "Module-source: " module-source upon syserr
display "Exception-file: " exception-file upon syserr
display "Exception-status: " exception-status upon syserr
display "Exception-location: " exception-location upon syserr
display "Exception-statement: " exception-statement upon syserr
.
hard-exception.
perform soft-exception
stop run returning 127
.
==.
end program curl-rosetta.
*> ***************************************************************
*> ***************************************************************
*>
*> The function hiding all the curl details
*>
*> Purpose: Call libcURL and read into memory
*> ***************************************************************
identification division.
function-id. read-url.
environment division.
configuration section.
repository.
function all intrinsic.
data division.
working-storage section.
copy "gccurlsym.cpy".
replace also ==:CALL-EXCEPTION:== by
==
on exception
perform hard-exception
==.
01 curl-handle usage pointer.
01 callback-handle usage procedure-pointer.
01 memory-block.
05 memory-address usage pointer sync.
05 memory-size usage binary-long sync.
05 running-total usage binary-long sync.
01 curl-result usage binary-long.
01 cli pic x(7) external.
88 helping values "-h", "-help", "help", spaces.
88 displaying value "display".
88 summarizing value "summary".
linkage section.
01 url pic x any length.
01 buffer pic x any length.
01 curl-status usage binary-long.
*> ***************************************************************
procedure division using url buffer returning curl-status.
if displaying or summarizing then
display "Read: " url upon syserr
end-if
*> initialize libcurl, hint at missing library if need be
call "curl_global_init" using by value CURL_GLOBAL_ALL
on exception
display
"need libcurl, link with -lcurl" upon syserr
stop run returning 1
end-call
*> initialize handle
call "curl_easy_init" returning curl-handle
:CALL-EXCEPTION:
end-call
if curl-handle equal NULL then
display "no curl handle" upon syserr
stop run returning 1
end-if
*> Set the URL
call "curl_easy_setopt" using
by value curl-handle
by value CURLOPT_URL
by reference concatenate(trim(url trailing), x"00")
:CALL-EXCEPTION:
end-call
*> follow all redirects
call "curl_easy_setopt" using
by value curl-handle
by value CURLOPT_FOLLOWLOCATION
by value 1
:CALL-EXCEPTION:
end-call
*> set the call back to write to memory
set callback-handle to address of entry "curl-write-callback"
call "curl_easy_setopt" using
by value curl-handle
by value CURLOPT_WRITEFUNCTION
by value callback-handle
:CALL-EXCEPTION:
end-call
*> set the curl handle data handling structure
set memory-address to address of buffer
move length(buffer) to memory-size
move 1 to running-total
call "curl_easy_setopt" using
by value curl-handle
by value CURLOPT_WRITEDATA
by value address of memory-block
:CALL-EXCEPTION:
end-call
*> some servers demand an agent
call "curl_easy_setopt" using
by value curl-handle
by value CURLOPT_USERAGENT
by reference concatenate("libcurl-agent/1.0", x"00")
:CALL-EXCEPTION:
end-call
*> let curl do all the hard work
call "curl_easy_perform" using
by value curl-handle
returning curl-result
:CALL-EXCEPTION:
end-call
*> the call back will handle filling ram, return the result code
move curl-result to curl-status
*> curl clean up, more important if testing cookies
call "curl_easy_cleanup" using
by value curl-handle
returning omitted
:CALL-EXCEPTION:
end-call
goback.
:EXCEPTION-HANDLERS:
end function read-url.
*> ***************************************************************
*> ***************************************************************
*> Supporting libcurl callback
identification division.
program-id. curl-write-callback.
environment division.
configuration section.
repository.
function all intrinsic.
data division.
working-storage section.
01 real-size usage binary-long.
*> libcURL will pass a pointer to this structure in the callback
01 memory-block based.
05 memory-address usage pointer sync.
05 memory-size usage binary-long sync.
05 running-total usage binary-long sync.
01 content-buffer pic x(65536) based.
01 web-space pic x(16777216) based.
01 left-over usage binary-long.
linkage section.
01 contents usage pointer.
01 element-size usage binary-long.
01 element-count usage binary-long.
01 memory-structure usage pointer.
*> ***************************************************************
procedure division
using
by value contents
by value element-size
by value element-count
by value memory-structure
returning real-size.
set address of memory-block to memory-structure
compute real-size = element-size * element-count end-compute
*> Fence off the end of buffer
compute
left-over = memory-size - running-total
end-compute
if left-over > 0 and < real-size then
move left-over to real-size
end-if
*> if there is more buffer, and data not zero length
if (left-over > 0) and (real-size > 1) then
set address of content-buffer to contents
set address of web-space to memory-address
move content-buffer(1:real-size)
to web-space(running-total:real-size)
add real-size to running-total
else
display "curl buffer sizing problem" upon syserr
end-if
goback.
end program curl-write-callback.
and a copybook
*> manifest constants for libcurl
*> Usage: COPY occurlsym inside data division
*> Taken from include/curl/curl.h 2013-12-19
*> Functional enums
01 CURL_MAX_HTTP_HEADER CONSTANT AS 102400.
78 CURL_GLOBAL_ALL VALUE 3.
78 CURLOPT_FOLLOWLOCATION VALUE 52.
78 CURLOPT_WRITEDATA VALUE 10001.
78 CURLOPT_URL VALUE 10002.
78 CURLOPT_USERAGENT VALUE 10018.
78 CURLOPT_WRITEFUNCTION VALUE 20011.
78 CURLOPT_COOKIEFILE VALUE 10031.
78 CURLOPT_COOKIEJAR VALUE 10082.
78 CURLOPT_COOKIELIST VALUE 10135.
*> Informationals
78 CURLINFO_COOKIELIST VALUE 4194332.
*> Result codes
78 CURLE_OK VALUE 0.
*> Error codes
78 CURLE_UNSUPPORTED_PROTOCOL VALUE 1.
78 CURLE_FAILED_INIT VALUE 2.
78 CURLE_URL_MALFORMAT VALUE 3.
78 CURLE_OBSOLETE4 VALUE 4.
78 CURLE_COULDNT_RESOLVE_PROXY VALUE 5.
78 CURLE_COULDNT_RESOLVE_HOST VALUE 6.
78 CURLE_COULDNT_CONNECT VALUE 7.
78 CURLE_FTP_WEIRD_SERVER_REPLY VALUE 8.
78 CURLE_REMOTE_ACCESS_DENIED VALUE 9.
78 CURLE_OBSOLETE10 VALUE 10.
78 CURLE_FTP_WEIRD_PASS_REPLY VALUE 11.
78 CURLE_OBSOLETE12 VALUE 12.
78 CURLE_FTP_WEIRD_PASV_REPLY VALUE 13.
78 CURLE_FTP_WEIRD_227_FORMAT VALUE 14.
78 CURLE_FTP_CANT_GET_HOST VALUE 15.
78 CURLE_OBSOLETE16 VALUE 16.
78 CURLE_FTP_COULDNT_SET_TYPE VALUE 17.
78 CURLE_PARTIAL_FILE VALUE 18.
78 CURLE_FTP_COULDNT_RETR_FILE VALUE 19.
78 CURLE_OBSOLETE20 VALUE 20.
78 CURLE_QUOTE_ERROR VALUE 21.
78 CURLE_HTTP_RETURNED_ERROR VALUE 22.
78 CURLE_WRITE_ERROR VALUE 23.
78 CURLE_OBSOLETE24 VALUE 24.
78 CURLE_UPLOAD_FAILED VALUE 25.
78 CURLE_READ_ERROR VALUE 26.
78 CURLE_OUT_OF_MEMORY VALUE 27.
78 CURLE_OPERATION_TIMEDOUT VALUE 28.
78 CURLE_OBSOLETE29 VALUE 29.
78 CURLE_FTP_PORT_FAILED VALUE 30.
78 CURLE_FTP_COULDNT_USE_REST VALUE 31.
78 CURLE_OBSOLETE32 VALUE 32.
78 CURLE_RANGE_ERROR VALUE 33.
78 CURLE_HTTP_POST_ERROR VALUE 34.
78 CURLE_SSL_CONNECT_ERROR VALUE 35.
78 CURLE_BAD_DOWNLOAD_RESUME VALUE 36.
78 CURLE_FILE_COULDNT_READ_FILE VALUE 37.
78 CURLE_LDAP_CANNOT_BIND VALUE 38.
78 CURLE_LDAP_SEARCH_FAILED VALUE 39.
78 CURLE_OBSOLETE40 VALUE 40.
78 CURLE_FUNCTION_NOT_FOUND VALUE 41.
78 CURLE_ABORTED_BY_CALLBACK VALUE 42.
78 CURLE_BAD_FUNCTION_ARGUMENT VALUE 43.
78 CURLE_OBSOLETE44 VALUE 44.
78 CURLE_INTERFACE_FAILED VALUE 45.
78 CURLE_OBSOLETE46 VALUE 46.
78 CURLE_TOO_MANY_REDIRECTS VALUE 47.
78 CURLE_UNKNOWN_TELNET_OPTION VALUE 48.
78 CURLE_TELNET_OPTION_SYNTAX VALUE 49.
78 CURLE_OBSOLETE50 VALUE 50.
78 CURLE_PEER_FAILED_VERIFICATION VALUE 51.
78 CURLE_GOT_NOTHING VALUE 52.
78 CURLE_SSL_ENGINE_NOTFOUND VALUE 53.
78 CURLE_SSL_ENGINE_SETFAILED VALUE 54.
78 CURLE_SEND_ERROR VALUE 55.
78 CURLE_RECV_ERROR VALUE 56.
78 CURLE_OBSOLETE57 VALUE 57.
78 CURLE_SSL_CERTPROBLEM VALUE 58.
78 CURLE_SSL_CIPHER VALUE 59.
78 CURLE_SSL_CACERT VALUE 60.
78 CURLE_BAD_CONTENT_ENCODING VALUE 61.
78 CURLE_LDAP_INVALID_URL VALUE 62.
78 CURLE_FILESIZE_EXCEEDED VALUE 63.
78 CURLE_USE_SSL_FAILED VALUE 64.
78 CURLE_SEND_FAIL_REWIND VALUE 65.
78 CURLE_SSL_ENGINE_INITFAILED VALUE 66.
78 CURLE_LOGIN_DENIED VALUE 67.
78 CURLE_TFTP_NOTFOUND VALUE 68.
78 CURLE_TFTP_PERM VALUE 69.
78 CURLE_REMOTE_DISK_FULL VALUE 70.
78 CURLE_TFTP_ILLEGAL VALUE 71.
78 CURLE_TFTP_UNKNOWNID VALUE 72.
78 CURLE_REMOTE_FILE_EXISTS VALUE 73.
78 CURLE_TFTP_NOSUCHUSER VALUE 74.
78 CURLE_CONV_FAILED VALUE 75.
78 CURLE_CONV_REQD VALUE 76.
78 CURLE_SSL_CACERT_BADFILE VALUE 77.
78 CURLE_REMOTE_FILE_NOT_FOUND VALUE 78.
78 CURLE_SSH VALUE 79.
78 CURLE_SSL_SHUTDOWN_FAILED VALUE 80.
78 CURLE_AGAIN VALUE 81.
*> Error strings
01 LIBCURL_ERRORS.
02 CURLEVALUES.
03 FILLER PIC X(30) VALUE "CURLE_UNSUPPORTED_PROTOCOL ".
03 FILLER PIC X(30) VALUE "CURLE_FAILED_INIT ".
03 FILLER PIC X(30) VALUE "CURLE_URL_MALFORMAT ".
03 FILLER PIC X(30) VALUE "CURLE_OBSOLETE4 ".
03 FILLER PIC X(30) VALUE "CURLE_COULDNT_RESOLVE_PROXY ".
03 FILLER PIC X(30) VALUE "CURLE_COULDNT_RESOLVE_HOST ".
03 FILLER PIC X(30) VALUE "CURLE_COULDNT_CONNECT ".
03 FILLER PIC X(30) VALUE "CURLE_FTP_WEIRD_SERVER_REPLY ".
03 FILLER PIC X(30) VALUE "CURLE_REMOTE_ACCESS_DENIED ".
03 FILLER PIC X(30) VALUE "CURLE_OBSOLETE10 ".
03 FILLER PIC X(30) VALUE "CURLE_FTP_WEIRD_PASS_REPLY ".
03 FILLER PIC X(30) VALUE "CURLE_OBSOLETE12 ".
03 FILLER PIC X(30) VALUE "CURLE_FTP_WEIRD_PASV_REPLY ".
03 FILLER PIC X(30) VALUE "CURLE_FTP_WEIRD_227_FORMAT ".
03 FILLER PIC X(30) VALUE "CURLE_FTP_CANT_GET_HOST ".
03 FILLER PIC X(30) VALUE "CURLE_OBSOLETE16 ".
03 FILLER PIC X(30) VALUE "CURLE_FTP_COULDNT_SET_TYPE ".
03 FILLER PIC X(30) VALUE "CURLE_PARTIAL_FILE ".
03 FILLER PIC X(30) VALUE "CURLE_FTP_COULDNT_RETR_FILE ".
03 FILLER PIC X(30) VALUE "CURLE_OBSOLETE20 ".
03 FILLER PIC X(30) VALUE "CURLE_QUOTE_ERROR ".
03 FILLER PIC X(30) VALUE "CURLE_HTTP_RETURNED_ERROR ".
03 FILLER PIC X(30) VALUE "CURLE_WRITE_ERROR ".
03 FILLER PIC X(30) VALUE "CURLE_OBSOLETE24 ".
03 FILLER PIC X(30) VALUE "CURLE_UPLOAD_FAILED ".
03 FILLER PIC X(30) VALUE "CURLE_READ_ERROR ".
03 FILLER PIC X(30) VALUE "CURLE_OUT_OF_MEMORY ".
03 FILLER PIC X(30) VALUE "CURLE_OPERATION_TIMEDOUT ".
03 FILLER PIC X(30) VALUE "CURLE_OBSOLETE29 ".
03 FILLER PIC X(30) VALUE "CURLE_FTP_PORT_FAILED ".
03 FILLER PIC X(30) VALUE "CURLE_FTP_COULDNT_USE_REST ".
03 FILLER PIC X(30) VALUE "CURLE_OBSOLETE32 ".
03 FILLER PIC X(30) VALUE "CURLE_RANGE_ERROR ".
03 FILLER PIC X(30) VALUE "CURLE_HTTP_POST_ERROR ".
03 FILLER PIC X(30) VALUE "CURLE_SSL_CONNECT_ERROR ".
03 FILLER PIC X(30) VALUE "CURLE_BAD_DOWNLOAD_RESUME ".
03 FILLER PIC X(30) VALUE "CURLE_FILE_COULDNT_READ_FILE ".
03 FILLER PIC X(30) VALUE "CURLE_LDAP_CANNOT_BIND ".
03 FILLER PIC X(30) VALUE "CURLE_LDAP_SEARCH_FAILED ".
03 FILLER PIC X(30) VALUE "CURLE_OBSOLETE40 ".
03 FILLER PIC X(30) VALUE "CURLE_FUNCTION_NOT_FOUND ".
03 FILLER PIC X(30) VALUE "CURLE_ABORTED_BY_CALLBACK ".
03 FILLER PIC X(30) VALUE "CURLE_BAD_FUNCTION_ARGUMENT ".
03 FILLER PIC X(30) VALUE "CURLE_OBSOLETE44 ".
03 FILLER PIC X(30) VALUE "CURLE_INTERFACE_FAILED ".
03 FILLER PIC X(30) VALUE "CURLE_OBSOLETE46 ".
03 FILLER PIC X(30) VALUE "CURLE_TOO_MANY_REDIRECTS ".
03 FILLER PIC X(30) VALUE "CURLE_UNKNOWN_TELNET_OPTION ".
03 FILLER PIC X(30) VALUE "CURLE_TELNET_OPTION_SYNTAX ".
03 FILLER PIC X(30) VALUE "CURLE_OBSOLETE50 ".
03 FILLER PIC X(30) VALUE "CURLE_PEER_FAILED_VERIFICATION".
03 FILLER PIC X(30) VALUE "CURLE_GOT_NOTHING ".
03 FILLER PIC X(30) VALUE "CURLE_SSL_ENGINE_NOTFOUND ".
03 FILLER PIC X(30) VALUE "CURLE_SSL_ENGINE_SETFAILED ".
03 FILLER PIC X(30) VALUE "CURLE_SEND_ERROR ".
03 FILLER PIC X(30) VALUE "CURLE_RECV_ERROR ".
03 FILLER PIC X(30) VALUE "CURLE_OBSOLETE57 ".
03 FILLER PIC X(30) VALUE "CURLE_SSL_CERTPROBLEM ".
03 FILLER PIC X(30) VALUE "CURLE_SSL_CIPHER ".
03 FILLER PIC X(30) VALUE "CURLE_SSL_CACERT ".
03 FILLER PIC X(30) VALUE "CURLE_BAD_CONTENT_ENCODING ".
03 FILLER PIC X(30) VALUE "CURLE_LDAP_INVALID_URL ".
03 FILLER PIC X(30) VALUE "CURLE_FILESIZE_EXCEEDED ".
03 FILLER PIC X(30) VALUE "CURLE_USE_SSL_FAILED ".
03 FILLER PIC X(30) VALUE "CURLE_SEND_FAIL_REWIND ".
03 FILLER PIC X(30) VALUE "CURLE_SSL_ENGINE_INITFAILED ".
03 FILLER PIC X(30) VALUE "CURLE_LOGIN_DENIED ".
03 FILLER PIC X(30) VALUE "CURLE_TFTP_NOTFOUND ".
03 FILLER PIC X(30) VALUE "CURLE_TFTP_PERM ".
03 FILLER PIC X(30) VALUE "CURLE_REMOTE_DISK_FULL ".
03 FILLER PIC X(30) VALUE "CURLE_TFTP_ILLEGAL ".
03 FILLER PIC X(30) VALUE "CURLE_TFTP_UNKNOWNID ".
03 FILLER PIC X(30) VALUE "CURLE_REMOTE_FILE_EXISTS ".
03 FILLER PIC X(30) VALUE "CURLE_TFTP_NOSUCHUSER ".
03 FILLER PIC X(30) VALUE "CURLE_CONV_FAILED ".
03 FILLER PIC X(30) VALUE "CURLE_CONV_REQD ".
03 FILLER PIC X(30) VALUE "CURLE_SSL_CACERT_BADFILE ".
03 FILLER PIC X(30) VALUE "CURLE_REMOTE_FILE_NOT_FOUND ".
03 FILLER PIC X(30) VALUE "CURLE_SSH ".
03 FILLER PIC X(30) VALUE "CURLE_SSL_SHUTDOWN_FAILED ".
03 FILLER PIC X(30) VALUE "CURLE_AGAIN ".
01 FILLER REDEFINES LIBCURL_ERRORS.
02 CURLEMSG OCCURS 81 TIMES PIC X(30).
{{out}}
prompt$ ./curl-rosetta summary
Read: http://www.rosettacode.org
Length: 000024043
prompt$ ./curl-rosetta display
Read: http://www.rosettacode.org
<!DOCTYPE html>
<html lang="en" dir="ltr" class="client-nojs">
<head>
...
ColdFusion
<cfhttp url="http://www.rosettacode.org" result="result">
<cfoutput>#result.FileContent#</cfoutput>
Common Lisp
CLISP provides an extension function to read http sources. Other implementations may do this differently. {{works with|CLISP}}
(defun wget-clisp (url)
(ext:with-http-input (stream url)
(loop for line = (read-line stream nil nil)
while line
do (format t "~a~%" line))))
{{libheader|DRAKMA}}
First grabbing the entire body as a string, and then by pulling from a stream (as in the CLISP example).
(defun wget-drakma-string (url &optional (out *standard-output*))
"Grab the body as a string, and write it to out."
(write-string (drakma:http-request url) out))
(defun wget-drakma-stream (url &optional (out *standard-output*))
"Grab the body as a stream, and write it to out."
(loop with body = (drakma:http-request url :want-stream t)
for line = (read-line body nil nil)
while line do (write-line line out)
finally (close body)))
Crystal
require "http/client"
HTTP::Client.get("http://google.com")
D
{{libheader|phobos}}
void main() {
import std.stdio, std.net.curl;
writeln(get("http://google.com"));
}
{{libheader|tango}}
import tango.io.Console;
import tango.net.http.HttpGet;
void main() {
Cout.stream.copy( (new HttpGet("http://google.com")).open );
}
Or more operating directly on the socket:
import tango.io.Console;
import tango.net.InternetAddress;
import tango.net.device.Socket;
void main() {
auto site = new Socket;
site.connect (new InternetAddress("google.com",80)).write ("GET / HTTP/1.0\n\n");
Cout.stream.copy (site);
}
Dart
Using the stand-alone VM:
import 'dart:io';
void main(){
var url = 'http://rosettacode.org';
var client = new HttpClient();
client.getUrl(Uri.parse(url))
.then((HttpClientRequest request) => request.close())
.then((HttpClientResponse response) => response.pipe(stdout));
}
Delphi
Simple example using the free Synapse TCP/IP library [http://www.ararat.cz/synapse/doku.php/download]
program HTTP;
{$APPTYPE CONSOLE}
{$DEFINE DEBUG}
uses
Classes,
httpsend; // Synapse httpsend class
var
Response: TStrings;
HTTPObj: THTTPSend;
begin
HTTPObj := THTTPSend.Create;
try
{ Stringlist object to capture HTML returned
from URL }
Response := TStringList.Create;
try
if HTTPObj.HTTPMethod('GET','http://www.mgis.uk.com') then
begin
{ Load HTTP Document into Stringlist }
Response.LoadFromStream(HTTPObj.Document);
{ Write the response to the console window }
Writeln(Response.Text);
end
else
Writeln('Error retrieving data');
finally
Response.Free;
end;
finally
HTTPObj.Free;
end;
// Keep console window open
Readln;
end.
Using Indy:
program ShowHTTP;
{$APPTYPE CONSOLE}
uses IdHttp;
var
s: string;
lHTTP: TIdHTTP;
begin
lHTTP := TIdHTTP.Create(nil);
try
lHTTP.HandleRedirects := True;
s := lHTTP.Get('http://www.rosettacode.org');
Writeln(s);
finally
lHTTP.Free;
end;
end.
Dragon
select "http"
select "std"
http("http://www.rosettacode.org", ::echo)
E
when (def t := <http://www.rosettacode.org> <- getText()) -> {
println(t)
}
EchoLisp
'''file->string''' usage: the server must allow cross-domain access, or a browser add-on like cors-everywhere must be installed to bypass cross-domain checking.
;; asynchronous call back definition
(define (success name text) (writeln 'Loaded name) (writeln text))
;;
(file->string success "http://www.google.com")
Emacs Lisp
url.el can download HTTP. url-retrieve-synchronously returns a buffer containing headers and body. Caller kills the buffer when no longer required.
(with-current-buffer
(url-retrieve-synchronously "http://www.rosettacode.org")
(goto-char (point-min))
(search-forward "\n\n" nil t) ;; skip headers
(prin1 (buffer-substring (point) (point-max)))
(kill-buffer (current-buffer)))
Erlang
Synchronous
-module(main).
-export([main/1]).
main([Url|[]]) ->
inets:start(),
case http:request(Url) of
{ok, {_V, _H, Body}} -> io:fwrite("~p~n",[Body]);
{error, Res} -> io:fwrite("~p~n", [Res])
end.
Asynchronous
-module(main).
-export([main/1]).
main([Url|[]]) ->
inets:start(),
http:request(get, {Url, [] }, [], [{sync, false}]),
receive
{http, {_ReqId, Res}} -> io:fwrite("~p~n",[Res]);
_Any -> io:fwrite("Error: ~p~n",[_Any])
after 10000 -> io:fwrite("Timed out.~n",[])
end.
Using it
|escript ./req.erl http://www.rosettacode.org
=={{header|F_Sharp|F#}}== In F# we can just use the .NET library to do this so its the same as the [[C_sharp|C#]] example.
let wget (url : string) =
use c = new System.Net.WebClient()
c.DownloadString(url)
printfn "%s" (wget "http://www.rosettacode.org/")
However unlike C#, F# can use an asynchronous workflow to avoid blocking any threads while waiting for a response from the server. To asynchronously download three url's at once...
open System.Net
open System.IO
let wgetAsync url =
async { let request = WebRequest.Create (url:string)
use! response = request.AsyncGetResponse()
use responseStream = response.GetResponseStream()
use reader = new StreamReader(responseStream)
return reader.ReadToEnd() }
let urls = ["http://www.rosettacode.org/"; "http://www.yahoo.com/"; "http://www.google.com/"]
let content = urls
|> List.map wgetAsync
|> Async.Parallel
|> Async.RunSynchronously
Factor
USE: http.client
"http://www.rosettacode.org" http-get nip print
Forth
{{works with|GNU Forth|0.7.0}} This works at the socket level, returning both the HTTP headers and page contents.
include unix/socket.fs
s" localhost" 80 open-socket
dup s\" GET / HTTP/1.0\n\n" rot write-socket
dup pad 8092 read-socket type
close-socket
friendly interactive shell
{{trans|UNIX Shell}}
curl -s -L http://rosettacode.org/
lynx -source http://rosettacode.org/
wget -O - -q http://rosettacode.org/
lftp -c "cat http://rosettacode.org/"
{{works with|BSD}}
ftp -o - http://rosettacode.org ^ /dev/null
Frink
Frink's read[URL] function works with any URL type supported by your Java Virtual Machine, and returns the results as a single string.
print[read["http://frinklang.org/"]]
Gastona
#listix#
<main>
LOOP, TEXT FILE, http://www.rosettacode.org
, BODY, @<value>
GML
{{works with|Game Maker Studio}}
'''Any Event'''
get = http_get("http://www.rosettacode.org/");
'''HTTP Event'''
if (ds_map_find_value(async_load,"id") == get)
{
show_message_async(ds_map_find_value(async_load,"result"));
}
Go
package main
import (
"io"
"log"
"net/http"
"os"
)
func main() {
r, err := http.Get("http://rosettacode.org/robots.txt")
if err != nil {
log.Fatalln(err)
}
io.Copy(os.Stdout, r.Body)
}
Output:
User-agent: *
Allow: /mw/images/
Allow: /mw/skins/
Allow: /mw/title.png
Disallow: /w/
Disallow: /mw/
Disallow: /wiki/Special:
Groovy
new URL("http://www.rosettacode.org").eachLine { println it }
GUISS
It would be more appropriate to paste to notepad:
Start,Programs,Applications,Mozilla Firefox,Inputbox:address bar>www.rosettacode.org,Button:Go,
Click:Area:browser window,Type:[Control A],[Control C],Start,Programs,Accessories,Notepad,
Menu:Edit,Paste
Halon
echo http("http://www.rosettacode.org");
Haskell
Using {{libheader|HTTP}} from [http://hackage.haskell.org/packages/hackage.html HackageDB]
import Network.Browser
import Network.HTTP
import Network.URI
main = do
rsp <- Network.Browser.browse $ do
setAllowRedirects True
setOutHandler $ const (return ())
request $ getRequest "http://www.rosettacode.org/"
putStrLn $ rspBody $ snd rsp
== Icon and Unicon ==
Icon
=
link cfunc
procedure main(arglist)
get(arglist[1])
end
procedure get(url)
local f, host, port, path
url ? {
="http://" | ="HTTP://"
host := tab(upto(':/') | 0)
if not (=":" & (port := integer(tab(upto('/'))))) then port := 80
if pos(0) then path := "/" else path := tab(0)
}
write(host)
write(path)
f := tconnect(host, port) | stop("Unable to connect")
writes(f, "GET ", path | "/" ," HTTP/1.0\r\n\r\n")
while write(read(f))
end
Using it
|icon req.icn http://www.rosettacode.org
=
Unicon
= Unicon provides improved socket and messaging support without the need for the external function ''cfunc'':
procedure main(arglist)
m := open(arglist[1],"m")
while write(read(m))
end
J
Using gethttp from [[Web Scraping#J|Web Scraping]]
require'web/gethttp'
gethttp 'http://www.rosettacode.org'
Java
import java.util.Scanner;
import java.net.URL;
public class Main {
public static void main(String[] args) throws Exception {
Scanner sc = new Scanner(new URL("http://www.rosettacode.org").openStream());
while (sc.hasNext())
System.out.println(sc.nextLine());
}
}
{{libheader|Apache Commons IO}}
import org.apache.commons.io.IOUtils;
import java.net.URL;
public class Main {
public static void main(String[] args) throws Exception {
IOUtils.copy(new URL("http://rosettacode.org").openStream(),System.out);
}
}
JavaScript
Browser
var req = new XMLHttpRequest();
req.onload = function() {
console.log(this.responseText);
};
req.open('get', 'http://rosettacode.org', true);
req.send()
Using fetch API:
fetch('http://rosettacode.org').then(function(response) {
return response.text();
}).then(function(myText) {
console.log(myText);
});
As a repeatable function:
/**
* @name _http
* @description Generic API Client using XMLHttpRequest
* @param {string} url The URI/URL to connect to
* @param {string} method The HTTP method to invoke- GET, POST, etc
* @param {function} callback Once the HTTP request has completed, responseText is passed into this function for execution
* @param {object} params Query Parameters in a JavaScript Object (Optional)
*
*/
function _http(url, method, callback, params) {
var xhr,
reqUrl;
xhr = new XMLHttpRequest();
xhr.onreadystatechange = function xhrProc() {
if (xhr.readyState == 4 && xhr.status == 200) {
callback(xhr.responseText);
}
};
/** If Query Parameters are present, handle them... */
if (typeof params === 'undefined') {
reqUrl = url;
} else {
switch (method) {
case 'GET':
reqUrl = url + procQueryParams(params);
break;
case 'POST':
reqUrl = url;
break;
default:
}
}
/** Send the HTTP Request */
if (reqUrl) {
xhr.open(method, reqUrl, true);
xhr.setRequestHeader("Accept", "application/json");
if (method === 'POST') {
xhr.send(params);
} else {
xhr.send();
}
}
/**
* @name procQueryParams
* @description Return function that converts Query Parameters from a JavaScript Object to a proper URL encoded string
* @param {object} params Query Parameters in a JavaScript Object
*
*/
function procQueryParams(params) {
return "?" + Object
.keys(params)
.map(function (key) {
return key + "=" + encodeURIComponent(params[key])
})
.join("&")
}
}
Using jQuery:
$.get('http://rosettacode.org', function(data) {
console.log(data);
};
Node.js
With Node.js, using only the included http module.
const http = require('http');
http.get('http://rosettacode.org', (resp) => {
let data = '';
// A chunk of data has been recieved.
resp.on('data', (chunk) => {
data += chunk;
});
// The whole response has been received. Print out the result.
resp.on('end', () => {
console.log("Data:", data);
});
}).on("error", (err) => {
console.log("Error: " + err.message);
});
Jsish
Based on Jsi_Wget that ships with Jsish.
#!/usr/bin/env jsish
function httpGet(fileargs:array|string, conf:object=void) {
var options = { // Web client for downloading files from url
headers : [], // Header fields to send.
nowait : false, // Just return object: caller will call update.
onDone : null, // Callback when done.
wsdebug : 0 // WebSockets debug level.
};
var self = {
address : '',
done : false,
path : '',
port : -1,
post : '', // Post file upload (UNIMPL).
scheme : 'http', // Url scheme
protocol : 'get',
url : null,
response : ''
};
parseOpts(self, options, conf);
if (self.port === -1)
self.port = 80;
function WsRecv(ws:userobj, id:number, str:string) {
LogDebug("LEN: "+str.length);
LogTrace("DATA", str);
self.response += str;
}
function WsClose(ws:userobj|null, id:number) {
LogDebug("CLOSE");
self.done = true;
if (self.onDone)
self.onDone(id);
}
function main() {
if (self.Debug)
debugger;
if (typeof(fileargs) === 'string')
fileargs = [fileargs];
if (!fileargs || fileargs.length !== 1)
throw("expected a url arg");
self.url = fileargs[0];
var m = self.url.match(/^([a-zA-Z]+):\/\/([^\/]*+)(.*)$/);
if (!m)
throw('invalid url: '+self.url);
self.scheme = m[1];
self.address = m[2];
self.path = m[3];
var as = self.address.split(':');
if (as.length==2) {
self.port = parseInt(as[1]);
self.address = as[0];
} else if (as.length != 1)
throw('bad port in address: '+self.address);
if (self.path=='')
self.path = '/index.html';
if (self.post.length)
self.protocol = 'post';
var wsopts = {
client:true,
onRecv:WsRecv,
onClose:WsClose,
debug:self.wsdebug,
rootdir:self.path,
port:self.port,
address:self.address,
protocol:self.protocol,
clientHost:self.address
};
if (self.post.length)
wsopts.post = self.post;
if (self.headers.length)
wsopts.headers = self.headers;
if (self.scheme === 'https') {
if (!Interp.conf('hasOpenSSL'))
puts('SSL is not compiled in: falling back to http:');
else {
if (self.port === 80)
wsopts.port = 441;
wsopts.use_ssl = true;
}
}
LogDebug("Starting:", conf, wsopts);
self.ws = new WebSocket( wsopts );
if (self.nowait)
return self;
while (!self.done) {
update(200);
LogTrace("UPDATE");
}
delete self.ws;
return self.response;
}
return main();
}
provide(httpGet, "0.60");
if (isMain())
runModule(httpGet);
{{out}}
prompt$ jsish
# require('httpGet')
0.6
# var page = httpGet('http://rosettacode.org/robots.txt')
variable
# page
"User-agent: *
Allow: /mw/images/
Allow: /mw/skins/
Allow: /mw/title.png
Allow: /mw/resources/
Disallow: /w/
Disallow: /mw/
Disallow: /wiki/Special:
"
Julia
readurl(url) = open(readlines, download(url))
readurl("http://rosettacode.org/index.html")
Kotlin
// version 1.1.2
import java.net.URL
import java.io.InputStreamReader
import java.util.Scanner
fun main(args: Array<String>) {
val url = URL("http://www.puzzlers.org/pub/wordlists/unixdict.txt")
val isr = InputStreamReader(url.openStream())
val sc = Scanner(isr)
while (sc.hasNextLine()) println(sc.nextLine())
sc.close()
}
Lasso
incude_url is a wrapper for Lasso's curl datatype, however it can be achieved in several ways.
// using include_url wrapper:
include_url('http://rosettacode.org/index.html')
// one line curl
curl('http://rosettacode.org/index')->result->asString
// using curl for more complex operations and feedback
local(x = curl('http://rosettacode.org/index'))
local(y = #x->result)
#y->asString
LFE
Synchronous
(: inets start)
(case (: httpc request '"http://lfe.github.io")
((tuple 'ok result)
(: io format '"Result: ~p" (list result)))
((tuple 'error reason)
(: io format '"Error: ~p~n" (list reason))))
Asynchronous
(: inets start)
(let* ((method 'get)
(url '"http://lfe.github.io")
(headers ())
(request-data (tuple url headers))
(http-options ())
(request-options (list (tuple 'sync 'false))))
(: httpc request method request-data http-options request-options)
(receive
((tuple 'http (tuple request-id (tuple 'error reason)))
(: io format '"Error: ~p~n" (list reason)))
((tuple 'http (tuple request-id result))
(: io format '"Result: ~p~n" (list result))))))
Liberty BASIC
Uses a dll call and a timer to allow time to receive the file.
result = DownloadToFile( "http://rosettacode.org/wiki/Main_Page", "in.html")
timer 2000, [on]
wait
[on]
timer 0
if result <> 0 then print "Error downloading."
end
Function DownloadToFile( urlfile$, localfile$)
open "URLmon" for dll as #url
calldll #url, "URLDownloadToFileA",_
0 as long,_ 'null
urlfile$ as ptr,_ 'url to download
localfile$ as ptr,_ 'save file name
0 as long,_ 'reserved, must be 0
0 as long,_ 'callback address, can be 0
DownloadToFile as ulong '0=success
close #url
end function
Lingo
HTTP requests based on Director's native HTTP facilities - i.e. without using a 3rd party plugin ("Xtra") - are asynchronous. A simple implementation of a HTTP GET request might look like this:
Parent script "SimpleHttpGet":
property _netID
property _cbHandler
property _cbTarget
----------------------------------------
-- Simple HTTP GET request
-- @param {string} url
-- @param {symbol} cbHandler
-- @param {object} [cbTarget=_movie]
----------------------------------------
on new (me, url, cbHandler, cbTarget)
if voidP(cbTarget) then cbTarget = _movie
me._netID = getNetText(url)
me._cbHandler = cbHandler
me._cbTarget = cbTarget
_movie.actorList.add(me)
return me
end
----------------------------------------
-- @callback
----------------------------------------
on stepFrame (me)
if netDone(me._netID) then
res = netTextResult(me._netID)
err = netError(me._netID)
_movie.actorList.deleteOne(me)
call(me._cbHandler, me._cbTarget, res, err)
end if
end
In some movie script:
----------------------------------------
--
----------------------------------------
on getAdobeHomePage ()
script("SimpleHttpGet").new("http://www.adobe.com/", #printResult)
end
----------------------------------------
-- @callback
----------------------------------------
on printResult (res, err)
if err="OK" then
put res
else
put "Network Error:" && err
end if
end
Executed in the "Message Window" (=Director's interactive Lingo console):
getAdobeHomePage()
-- "<!doctype html>
...
LiveCode
Without a callback handler the get URL method will block until complete
put true into libURLFollowHttpRedirects
get URL "http://httpbin.org/html"
put it
Non-blocking version
on myUrlDownloadFinished
answer "Download Complete" with "Okay"
end myUrlDownloadFinished
command getWebResource
load URL "http://httpbin.org/html" with message "myUrlDownloadFinished"
end getWebResource
LSL
To test it yourself; rez a box on the ground, and add the following as a New Script.
string sURL = "http://www.RosettaCode.Org";
key kHttpRequestId;
default {
state_entry() {
kHttpRequestId = llHTTPRequest(sURL, [], "");
}
http_response(key kRequestId, integer iStatus, list lMetaData, string sBody) {
if(kRequestId==kHttpRequestId) {
llOwnerSay("Status="+(string)iStatus);
integer x = 0;
for(x=0 ; x<llGetListLength(lMetaData) ; x++) {
llOwnerSay("llList2String(lMetaData, "+(string)x+")="+llList2String(lMetaData, x));
}
list lBody = llParseString2List(sBody, ["\n"], []);
for(x=0 ; x<llGetListLength(lBody) ; x++) {
llOwnerSay("llList2String(lBody, "+(string)x+")="+llList2String(lBody, x));
}
}
}
}
Output:
Status=200
llList2String(lMetaData, 0)=0
llList2String(lMetaData, 1)=2048
llList2String(lBody, 0)=<!DOCTYPE html>
llList2String(lBody, 1)=<html lang="en" dir="ltr" class="client-nojs">
llList2String(lBody, 2)=<head>
llList2String(lBody, 3)=<title>Rosetta Code</title>
llList2String(lBody, 4)=<meta charset="UTF-8" />
llList2String(lBody, 5)=<meta name="generator" content="MediaWiki 1.18.0" />
llList2String(lBody, 6)=<link rel="shortcut icon" href="/favicon.ico" />
llList2String(lBody, 7)=<link rel="search" type="application/opensearchdescription+xml" href="/mw/opensearch_desc.php" title="Rosetta Code (en)" />
llList2String(lBody, 8)=<link rel="EditURI" type="application/rsd+xml" href="http://rosettacode.org/mw/api.php?action=rsd" />
llList2String(lBody, 9)=<link rel="copyright" href="http://www.gnu.org/licenses/fdl-1.2.html" />
llList2String(lBody, 10)=<link rel="alternate" type="application/atom+xml" title="Rosetta Code Atom feed" href="/mw/index.php?title=Special:RecentChanges&feed=atom" />
llList2String(lBody, 11)=<link rel="stylesheet" href="/mw/load.php?debug=false&lang=en&modules=mediawiki.legacy.commonPrint%2Cshared%7Cskins.vector&only=styles&skin=vector&*" />
llList2String(lBody, 12)=<meta name="ResourceLoaderDynamicStyles" content="" />
llList2String(lBody, 13)=<link rel="stylesheet" href="/mw/load.php?debug=false&lang=en&modules=site&only=styles&skin=vector&*" />
llList2String(lBody, 14)=<style>a:lang(ar),a:lang(ckb),a:lang(fa),a:lang(kk-arab),a:lang(mzn),a:lang(ps),a:lang(ur){text-decoration:none}a.new,#quickbar a.new{color:#ba0000}
... ... ... ... ... ... ... ... ... ... ... ... ... ...
Lua
{{libheader|LuaSocket}}
local http = require("socket.http")
local url = require("socket.url")
local page = http.request('http://www.google.com/m/search?q=' .. url.escape("lua"))
print(page)
M2000 Interpreter
We use Async read from Microsoft.XMLHTTP So we use Threads (duration is in millisecond) M2000 can use COM objects, using Declare, Method and With statements. Using With statement we can make objects properties like ReadyState as variables (some of them as read only)
Module CheckIt {
Declare xml "Microsoft.XMLHTTP"
const testUrl$ = "http://www.rosettacode.org"
With xml, "readyState" as ReadyState
Method xml "Open", "Get", testUrl$, True ' True means Async
Method xml "send"
\\ We set a thread to count time
k=0
Thread {
k++
} as TimeOut interval 100
\\ In main thread we can check ReadyState and Mouse button
Task.Main 100 {
Print ReadyState
If ReadyState=4 then exit
if k>20 then exit ' 20*100= 2 sec
if mouse then exit ' exit if mouse click
}
\\ So now we can read
if ReadyState=4 then {
With xml, "responseText" AS AA$
\\ break AA$ to lines
Document BB$=AA$
\\ using line breaks as CRLF
Report BB$
}
Declare xml Nothing
}
CheckIt
Maple
In Maple 18 or later:
content := URL:-Get( "http://www.google.com/" );
In Maple 17 or earlier:
content := HTTP:-Get( "http://www.google.com/" );
=={{header|Mathematica}} / {{header|Wolfram Language}}==
Print[Import["http://www.google.com/webhp?complete=1&hl=en", "Source"]]
=={{header|MATLAB}} / {{header|Octave}}== [http://www.mathworks.com/help/matlab/ref/urlread.html urlread] is MATLAB's function for making URL requests. The documentation for Octave is available here [http://octave.sourceforge.net/octave/function/urlread.html urlread].
In this example we initiate an HTTP request for a single random number from [http://www.random.org random.org]:
>> random = urlread('http://www.random.org/integers/?num=1&min=1&max=100&col=1&base=10&format=plain&rnd=new')
random =
61
It is possible to make more complicated requests, specifically "GET" and "POST," which is explained in the [http://www.mathworks.com/help/matlab/ref/urlread.html documentation].
MIRC Scripting Language
See [[HTTP/MIRC Scripting Language]]
Nemerle
using System;
using System.Console;
using System.Net;
using System.IO;
module HTTP
{
Main() : void
{
def wc = WebClient();
def myStream = wc.OpenRead("http://rosettacode.org");
def sr = StreamReader(myStream);
WriteLine(sr.ReadToEnd());
myStream.Close()
}
}
NetRexx
{{trans|Java}} An implementation of the [[#Java|Java]] version shown above; demonstrating NetRexx's ability to exploit the rich Java SDK.
/* NetRexx */
options replace format comments java crossref symbols binary
import java.util.Scanner
import java.net.URL
do
rosettaUrl = "http://www.rosettacode.org"
sc = Scanner(URL(rosettaUrl).openStream)
loop while sc.hasNext
say sc.nextLine
end
catch ex = Exception
ex.printStackTrace
end
return
NewLisp
(get-url "http://www.rosettacode.org")
Nim
import httpclient
var client = newHttpClient()
echo client.getContent "http://rosettacode.org"
Objeck
use HTTP;
use Collection;
class HttpTest {
function : Main(args : String[]) ~ Nil {
lines := HttpClient->New()->Get("http://rosettacode.org");
each(i : lines) {
lines->Get(i)->As(String)->PrintLine();
};
}
}
=={{header|Objective-C}}==
int main (int argc, const char * argv[]) {
@autoreleasepool {
NSError *error;
NSURLResponse *response;
NSData *data = [NSURLConnection sendSynchronousRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://rosettacode.org"]]
returningResponse:&response
error:&error];
NSLog(@"%@", [[NSString alloc] initWithData:data
encoding:NSUTF8StringEncoding]);
}
return 0;
}
OCaml
let () =
let url = "http://www.rosettacode.org" in
let _,_, page_content = make_request ~url ~kind:GET () in
print_endline page_content;
;;
The source code of the function ''make_request'' is [[Web_Scraping/OCaml|here]].
ooRexx
Got this from a friend. Needs bsf4oorexx from sourceforge.
Note that rosettacode.org (as used by java and NetRexx) does not permit this access!
url=.bsf~new("java.net.URL","http://teletext.orf.at")
sc =.bsf~new("java.util.Scanner",url~openStream)
loop while sc~hasNext
say sc~nextLine
End
::requires BSF.CLS -- get Java camouflaging support
{{out}} massaged to avoid problems.
<-!DOCTYPE HTML-
..
-/html-
Oz
When creating a file object, it is possible to specify an URL instead of a filename:
declare
fun {GetPage Url}
F = {New Open.file init(url:Url)}
Contents = {F read(list:$ size:all)}
in
{F close}
Contents
end
in
{System.showInfo {GetPage "http://www.rosettacode.org"}}
{{libheader|OzHttpClient}}
If you need more fine-grained control of the request, you could use a custom library:
declare
[HTTPClient] = {Module.link ['x-ozlib://mesaros/net/HTTPClient.ozf']}
fun {GetPage Url}
Client = {New HTTPClient.urlGET
init(inPrms(toFile:false toStrm:true)
httpReqPrms
)}
OutParams
HttpResponseParams
in
{Client getService(Url ?OutParams ?HttpResponseParams)}
{Client closeAll(true)}
OutParams.sOut
end
in
{System.showInfo {GetPage "http://www.rosettacode.org"}}
Pascal
{{works with|Free Pascal}} Using [http://wiki.freepascal.org/fphttpclient fphttpclient]
{$mode objfpc}{$H+}
uses fphttpclient;
var
s: string;
hc: tfphttpclient;
begin
hc := tfphttpclient.create(nil);
try
s := hc.get('http://www.example.com')
finally
hc.free
end;
writeln(s)
end.
{{works with|Free Pascal}} {{libheader|CThreads}} {{libheader|Classes}} {{libheader|httpsend}}
program http;
{$mode objfpc}{$H+}
{$APPTYPE CONSOLE}
{$DEFINE DEBUG}
uses
{$IFDEF UNIX}{$IFDEF UseCThreads}
cthreads,
{$ENDIF}{$ENDIF}
Classes, httpsend; // Synapse httpsend class
{$R *.res}
var
Response: TStrings;
HTTPObj: THTTPSend;
begin
HTTPObj := THTTPSend.Create;
try
{ Stringlist object to capture HTML returned
from URL }
Response := TStringList.Create;
try
if HTTPObj.HTTPMethod('GET','http://wiki.lazarus.freepascal.org/Synapse') then
begin
{ Load HTTP Document into Stringlist }
Response.LoadFromStream(HTTPObj.Document);
{ Write the response to the console window }
Writeln(Response.Text);
end
else
Writeln('Error retrieving data');
finally
Response.Free;
end;
finally
HTTPObj.Free;
end;
// Keep console window open
Readln;
end.
Peloton
English dialect, short form:
<@ SAYURLLIT>http://rosettacode.org/wiki/Main_Page</@>
English dialect, padded variable-length form:
<# SAY URLSOURCE LITERAL>http://rosettacode.org/wiki/Main_Page</#>
Perl
Core example
{{libheader|HTTP/Tiny}} {{works with|Perl|5.14}} {{works with|Perl/HTTP/Tiny}}
This sample is nearly identical to the LWP sample except that it uses HTTP::Tiny which was added to the core libraries in [[Perl/5.14]].
use strict; use warnings;
require 5.014; # check HTTP::Tiny part of core
use HTTP::Tiny;
print( HTTP::Tiny->new()->get( 'http://rosettacode.org')->{content} );
Library examples
===={{libheader|LWP}}==== {{works with|Perl/LWP}}
Classic LWP sample.
use LWP::Simple qw/get $ua/;
$ua->agent(undef) ; # cloudflare blocks default LWP agent
print( get("http://www.rosettacode.org") );
or with more error-checking
use strict;
use LWP::UserAgent;
my $url = 'http://www.rosettacode.org';
my $response = LWP::UserAgent->new->get( $url );
$response->is_success or die "Failed to GET '$url': ", $response->status_line;
print $response->as_string
Perl 6
{{libheader|LWP}}
use v6;
# Using LWP::Simple from: git://github.com/cosimo/perl6-lwp-simple.git
use LWP::Simple;
print LWP::Simple.get("http://www.rosettacode.org");
or, without LWP::Simple:
use v6;
my $socket = IO::Socket::INET.new(host => "www.rosettacode.org",
port => 80,);
$socket.print("GET / HTTP/1.0\r\n\r\n");
print $socket.recv();
$socket.close;
Phix
{{libheader|libcurl}} Note that curl_easy_get_file() is better suited to multi-megabyte downloads than curl_easy_perform_ex().
include builtins\libcurl.e
curl_global_init()
atom curl = curl_easy_init()
curl_easy_setopt(curl, CURLOPT_URL, "http://rosettacode.org/robots.txt")
object res = curl_easy_perform_ex(curl)
curl_easy_cleanup(curl)
curl_global_cleanup()
puts(1,res)
{{out}}
User-agent: *
Allow: /mw/images/
Allow: /mw/skins/
Allow: /mw/title.png
Allow: /mw/resources/
Disallow: /w/
Disallow: /mw/
Disallow: /wiki/Special:
PHP
readfile("http://www.rosettacode.org");
PicoLisp
(load "@lib/http.l")
(client "rosettacode.org" 80 NIL # Connect to rosettacode
(out NIL (echo)) ) # Echo to standard output
Pike
write("%s",Protocols.HTTP.get_url_data("http://www.rosettacode.org"));
PowerShell
$wc = New-Object Net.WebClient
$wc.DownloadString('http://www.rosettacode.org')
Prolog
Works with SWI-Prolog and library http/http_open. (Extract from the doc).
:- use_module(library( http/http_open )).
http :-
http_open('http://www.rosettacode.org/',In, []),
copy_stream_data(In, user_output),
close(In).
PureBasic
InitNetwork()
OpenConsole()
tmpdir$ = GetTemporaryDirectory()
filename$ = tmpdir$ + "PB_tempfile" + Str(Random(200000)) + ".html"
If ReceiveHTTPFile("http://rosettacode.org/wiki/Main_Page", filename$)
If ReadFile(1, filename$)
Repeat
PrintN(ReadString(1))
Until Eof(1)
Input()
; to prevent console from closing if on windows
CloseFile(1)
EndIf
DeleteFile(filename$)
EndIf
Another solution using general networking commands
InitNetwork()
OpenConsole()
id = OpenNetworkConnection("rosettacode.org", 80)
SendNetworkString(id, "GET /wiki/Main_Page HTTP/1.1" + Chr(10) + "Host: rosettacode.org" + Chr(10) + Chr(10))
Repeat
If NetworkClientEvent(id) = 2
a$ = Space(1000)
ReceiveNetworkData(id, @a$, 1000)
out$ + a$
EndIf
Until FindString(out$, "</html>", 0)
PrintN(out$)
; next line only to prevent console from closing on Windows
Input()
Of course you could use wget too.
Python
;Python 3: Using the [http://docs.python.org/py3k/library/urllib.request.html urllib.request] module.
import urllib.request
print(urllib.request.urlopen("http://rosettacode.org").read())
Using a more low-level [https://docs.python.org/3/library/http.client.html http.client] library.
from http.client import HTTPConnection
conn = HTTPConnection("example.com")
# If you need to use set_tunnel, do so here.
conn.request("GET", "/")
# Alternatively, you can use connect(), followed by the putrequest, putheader and endheaders functions.
result = conn.getresponse()
r1 = result.read() # This retrieves the entire contents.
;Python 2: Using the [http://docs.python.org/library/urllib.html urllib] library.
import urllib
print urllib.urlopen("http://rosettacode.org").read()
Using the [http://docs.python.org/library/urllib2.html urllib2] library.
import urllib2
print urllib2.urlopen("http://rosettacode.org").read()
{{libheader|Requests}} {{works with|Python|2.7, 3.4–3.7}}
import requests
print(requests.get("http://rosettacode.org").text)
R
{{libheader|RCurl}} {{libheader|XML}}
First, retrieve the webpage.
library(RCurl)
webpage <- getURL("http://rosettacode.org")
#If you are linking to a page that no longer exists and need to follow the redirect, use followlocation=TRUE
webpage <- getURL("http://www.rosettacode.org", .opts=list(followlocation=TRUE))
#If you are behind a proxy server, you will need to use something like:
webpage <- getURL("http://rosettacode.org",
.opts=list(proxy="123.123.123.123", proxyusername="domain\\username", proxypassword="mypassword", proxyport=8080))
#Don't forget that backslashes in your username or password need to be escaped!
Now parse the html code into a tree and print the html.
library(XML)
pagetree <- htmlTreeParse(webpage )
pagetree$children$html
Racket
#lang racket
(require net/url)
(copy-port (get-pure-port (string->url "http://www.rosettacode.org")
#:redirections 100)
(current-output-port))
REALbasic
REALBasic provides an HTTPSocket class for handling HTTP connections. The 'Get' method of the HTTPSocket is overloaded and can download data to a file or return data as a string, in both cases a timeout argument can be passed.
Dim sock As New HTTPSocket
Print(sock.Get("http://www.rosettacode.org", 10)) //set the timeout period to 10 seconds.
REBOL
print read http://rosettacode.org
REXX
This script takes an URL as an argument and displays the content on the terminal. It uses the external program curl to perform both the acquisition of the data and the display.
/* ft=rexx */
/* GET2.RX - Display contents of an URL on the terminal. */
/* Usage: rexx get.rx http://rosettacode.org */
parse arg url .
'curl' url
A simple change to the script will redirect the output to an internal variable for internal processing. (Our "internal processing" in this case is to display it.)
/* ft=rexx */
/* GET2.RX - Display contents of an URL on the terminal. */
/* Usage: rexx get2.rx http://rosettacode.org */
parse arg url .
address system 'curl' url with output stem stuff.
do i = 1 to stuff.0
say stuff.i
end
Another simple change redirects the output to another external program like a shell pipe.
/* ft=rexx */
/* GET3.RX - Display contents of an URL on the terminal. */
/* Usage: rexx get3.rx http://rosettacode.org */
parse arg url .
address system 'curl' url with output fifo ''
address system 'more' with input fifo ''
RLaB
RLaB supports HTTP/FTP through its Read/Write facilities, which are organized around the concept of Universal Resource Locator (URL), :''protocol://address''
RLaB accepts the following values for ''protocol'': :1. ''file'' or omitted, for generic text files or files in native binary format (partially compatible with ''matlab'' binary format);
:2. ''h5'' or ''hdf5'' for files that use Hierarhical Data Format 5 (HDF5) version 1.8.0, and later. Here ''protocol'' can be omitted while ''address'' has to end with ''.h5'' (file extension);
:3. ''http'', ''https'', or ''ftp'' for accessing the data and files on web- and ftp-servers;
:4. ''tcp'', for accessing sockets over tcp/ip protocol;
:5. ''serial'', for accessing serial port on Un*x type systems.
For these URLs RLaB provides an internal book-keeping: It keeps track of the open ones and, say, upon quitting, closes them and releases the internal resources it allocated for managing them.
For accessing URLs on world wide web RLaB implements the library cURL (libcurl) [http://curl.haxx.se] and its "easy" interface.
This said, this is how one would download financial data for Pfeizer from Yahoo [http://ichart.finance.yahoo.com/table.csv?s=PFE&a=00&b=4&c=1982&d=00&e=10&f=2010&g=d&ignore=.csv].
// get cvs data from Yahoo for Pfeizer (PFE)
url="http://ichart.finance.yahoo.com/table.csv?s=PFE&a=00&b=4&c=1982&d=00&e=10&f=2010&g=d&ignore=.csv";
opt = <<>>;
// opt.CURLOPT_PROXY = "your.proxy.here";
// opt.CURLOPT_PROXYPORT = YOURPROXYPORT;
// opt.CURLOPT_PROXYTYPE = "http";
open(url, opt);
x = readm(url);
close (url);
Ring
See download("http://rosettacode.org")
Ruby
The simple way loads the entire content into memory, then prints it.
require 'open-uri'
print open("http://rosettacode.org") {|f| f.read}
If the content might be large, the better way uses FileUtils.copy_stream.
require 'fileutils'
require 'open-uri'
open("http://rosettacode.org/") {|f| FileUtils.copy_stream(f, $stdout)}
Run BASIC
print httpget$("http://rosettacode.org/wiki/Main_Page")
Rust
Cargo.toml
[dependencies]
hyper = "0.6"
src/main.rs
//cargo-deps: hyper="0.6"
// The above line can be used with cargo-script which makes cargo's dependency handling more convenient for small programs
extern crate hyper;
use std::io::Read;
use hyper::client::Client;
fn main() {
let client = Client::new();
let mut resp = client.get("http://rosettacode.org").send().unwrap();
let mut body = String::new();
resp.read_to_string(&mut body).unwrap();
println!("{}", body);
}
Scala
{{libheader|Scala}}
import scala.io.Source
object HttpTest extends App {
System.setProperty("http.agent", "*")
Source.fromURL("http://www.rosettacode.org").getLines.foreach(println)
}
Scheme
{{works with|Guile}}
; Use the regular expression module to parse the url (included with Guile)
(use-modules (ice-9 regex))
; Set the url and parse the hostname, port, and path into variables
(define url "http://www.rosettacode.org/wiki/HTTP")
(define r (make-regexp "^(http://)?([^:/]+)(:)?(([0-9])+)?(/.*)?" regexp/icase))
(define host (match:substring (regexp-exec r url) 2))
(define port (match:substring (regexp-exec r url) 4))
(define path (match:substring (regexp-exec r url) 6))
; Set port to 80 if it wasn't set above and convert from a string to a number
(if (eq? port #f) (define port "80"))
(define port (string->number port))
; Connect to remote host on specified port
(let ((s (socket PF_INET SOCK_STREAM 0)))
(connect s AF_INET (car (hostent:addr-list (gethostbyname host))) port)
; Send a HTTP request for the specified path
(display "GET " s)
(display path s)
(display " HTTP/1.0\r\n\r\n" s)
; Display the received HTML
(do ((c (read-char s) (read-char s))) ((eof-object? c))
(display c)))
{{works with|Chicken Scheme}} Using the [http://api.call-cc.org/doc/http-client http-client] library, this is trivial.
(use http-client)
(print
(with-input-from-request "http://google.com/"
#f read-string))
Seed7
The [http://seed7.sourceforge.net/libraries/gethttp.htm gethttp.s7i] library contains the function [http://seed7.sourceforge.net/libraries/gethttp.htm#getHttp%28in_string%29 getHttp], which gets data specified by an URL using the HTTP protocol.
$ include "seed7_05.s7i";
include "gethttp.s7i";
const proc: main is func
begin
writeln(getHttp("www.rosettacode.org"));
end func;
Sidef
Sidef can load and use Perl modules:
func get(url) {
var lwp = (
try { require('LWP::UserAgent') }
catch { warn "'LWP::UserAgent' is not installed!"; return nil }
)
var ua = lwp.new(agent => 'Mozilla/5.0')
if (var resp = ua.get(url); resp.is_success) {
return resp.decoded_content
}
return nil
}
print get("http://rosettacode.org")
SNOBOL4
{{works with|Macro SNOBOL4 in C}}
-include "tcp.sno"
tcp.open(.conn,'www.rosettacode.org','http') :s(cont1)
terminal = "cannot open" :(end)
cont1 conn = "GET http://rosettacode.org/wiki/Main_Page HTTP/1.0" char(10) char(10)
while output = conn :s(while)
tcp.close(.conn)
end
Smalltalk
{{works with|Pharo}}
Transcript show: 'http://rosettacode.org' asUrl retrieveContents contentStream.
Swift
import Foundation
let request = NSURLRequest(URL: NSURL(string: "http://rosettacode.org/")!)
// Using trailing closure
NSURLConnection.sendAsynchronousRequest(request, queue: NSOperationQueue()) {res, data, err in
// data is binary
if (data != nil) {
let string = NSString(data: data!, encoding: NSUTF8StringEncoding)
println(string)
}
}
CFRunLoopRun() // dispatch
Tcl
Note that the http package is distributed as part of Tcl.
package require http
set request [http::geturl "http://www.rosettacode.org"]
puts [http::data $request]
http::cleanup $request
TSE SAL
DLL "<urlmon.dll>"
INTEGER PROC FNUrlGetSourceApiI(
INTEGER lpunknown,
STRING urlS : CSTRVAL,
STRING filenameS : CSTRVAL,
INTEGER dword,
INTEGER tlpbindstatuscallback
) : "URLDownloadToFileA"
END
// library: url: get: source <description></description> <version control></version control> <version>1.0.0.0.3</version> (filenamemacro=geturgso.s) [kn, ri, su, 13-04-2008 05:12:53]
PROC PROCUrlGetSource( STRING urlS, STRING filenameS )
FNUrlGetSourceApiI( 0, urlS, filenameS, 0, 0 )
END
PROC Main()
STRING s1[255] = "http://www.google.com/index.html"
STRING s2[255] = "c:\temp\ddd.txt"
IF ( NOT ( Ask( "url: get: source: urlS = ", s1, _EDIT_HISTORY_ ) ) AND ( Length( s1 ) > 0 ) ) RETURN() ENDIF
IF ( NOT ( AskFilename( "url: get: source: filenameS = ", s2, _DEFAULT_, _EDIT_HISTORY_ ) ) AND ( Length( s2 ) > 0 ) ) RETURN() ENDIF
PROCUrlGetSource( s1, s2 )
EditFile( s2 )
END
TUSCRIPT
$$ MODE TUSCRIPT
SET DATEN = REQUEST ("http://www.rosettacode.org")
*{daten}
UNIX Shell
curl -s -L http://rosettacode.org/
lynx -source http://rosettacode.org/
wget -O - -q http://rosettacode.org/
lftp -c "cat http://rosettacode.org/"
{{works with|BSD}}
ftp -o - http://rosettacode.org 2>/dev/null
VBScript
{{Libheader|Microsoft.XmlHTTP}}
Based on code at [http://itknowledgeexchange.techtarget.com/vbscript-systems-administrator/how-to-retrieve-html-web-pages-with-vbscript-via-the-microsoftxmlhttp-object/ How to retrieve HTML web pages with VBScript via the Microsoft.XmlHttp object]
Option Explicit
Const sURL="http://rosettacode.org/"
Dim oHTTP
Set oHTTP = CreateObject("Microsoft.XmlHTTP")
On Error Resume Next
oHTTP.Open "GET", sURL, False
oHTTP.Send ""
If Err.Number = 0 Then
WScript.Echo oHTTP.responseText
Else
Wscript.Echo "error " & Err.Number & ": " & Err.Description
End If
Set oHTTP = Nothing
Visual Basic
{{Libheader|Microsoft.WinHttp}} {{works with|Visual Basic|5}} {{works with|Visual Basic|6}} {{works with|VBA|Access 97}} {{works with|VBA|6.5}} {{works with|VBA|7.1}}
Sub Main()
Dim HttpReq As WinHttp.WinHttpRequest
' in the "references" dialog of the IDE, check
' "Microsoft WinHTTP Services, version 5.1" (winhttp.dll)
Const HTTPREQUEST_PROXYSETTING_PROXY As Long = 2
#Const USE_PROXY = 1
Set HttpReq = New WinHttp.WinHttpRequest
HttpReq.Open "GET", "http://rosettacode.org/robots.txt"
#If USE_PROXY Then
HttpReq.SetProxy HTTPREQUEST_PROXYSETTING_PROXY, "my_proxy:80"
#End If
HttpReq.SetTimeouts 1000, 1000, 1000, 1000
HttpReq.Send
Debug.Print HttpReq.ResponseText
End Sub
Visual Basic .NET
Imports System.Net
Dim client As WebClient = New WebClient()
Dim content As String = client.DownloadString("http://www.google.com")
Console.WriteLine(content)
zkl
File htmlGet.zkl. This uses HTTP/1.0 Protocol to avoid chunked data. Or use cURL (see https example).
url := ask(0,"URL: ");
host := url;
dir := "/";
port := 80;
if (n := url.find("/")) { dir = url[n,*]; host = url[0,n]; }
if (n := host.find(":")) { port = host[n+1,*]; host = host[0,n]; }
get := "GET %s HTTP/1.0\r\nHost: %s:%s\r\n\r\n".fmt(dir,host,port.toInt());
println("-->",get);
server := Network.TCPClientSocket.connectTo(host,port);
server.write(get);
data := server.read(True);
println(data.text);
zkl htmlGet.zkl rosettacode.org/wiki/HTTP {{out}}
-->GET /wiki/HTTP HTTP/1.0
Host: rosettacode.org:80
HTTP/1.1 200 OK
Server: cloudflare-nginx
Date: Tue, 11 Mar 2014 08:31:43 GMT
Content-Type: text/html; charset=UTF-8
Connection: close
Set-Cookie:XXX
23:50:00 GMT; path=/; domain=.rosettacode.org; HttpOnly
X-Powered-By: PHP/5.3.3-7+squeeze18
X-Content-Type-Options: nosniff
Content-Language: en
ETag: W/"rosettacode:pcache:idhash:3055-0!1!0!!en!2--20140227082903"
Vary: Accept-Encoding,Cookie
Cache-Control: s-maxage=86400, must-revalidate, max-age=0
Last-Modified: Thu, 27 Feb 2014 08:29:03 GMT
Age: 86011
X-Cache: HIT from prgmr2.rosettacode.org
X-Cache-Lookup: HIT from prgmr2.rosettacode.org:80
Via: 1.0 prgmr2.rosettacode.org (squid/3.1.6)
CF-RAY: 109665b7e92a012c-SJC
<!DOCTYPE html>
<html lang="en" dir="ltr" class="client-nojs">
<head>
<title>HTTP - Rosetta Code</title>
...
Zsh
zmodload zsh/net/tcp
ztcp example.com 80
fd=$REPLY
print -l -u $fd -- 'GET / HTTP/1.1' 'Host: example.com' ''
while read -u $fd -r -e -t 1; do; :; done
ztcp -c $fd
{{omit from|Applesoft BASIC|No TCP/IP network support on Apple II}} {{omit from|Brainfuck}} {{omit from|Commodore BASIC|Does not have network access}} {{omit from|Inform 7|Does not have network access.}} {{omit from|Integer BASIC|No TCP/IP network support on Apple II}} {{omit from|Locomotive Basic|Does not have network access.}} {{omit from|Lotus 123 Macro Scripting}} {{omit from|M4}} {{omit from|Maxima}} {{omit from|ML/I}} {{omit from|Openscad}} {{omit from|PARI/GP}} {{omit from|PostScript}} {{omit from|Retro|Does not have network access.}} {{omit from|SQL PL|Does not have network access}} {{omit from|TI-83 BASIC|Does not have network access.}} {{omit from|TI-89 BASIC|Does not have network access.}} {{omit from|Unlambda|Does not have network access.}} {{omit from|Yorick|Does not have network access.}} {{omit from|ZX Spectrum Basic|Does not have network access.}}