如何获取Rebol3中的HTTP响应头？

read和write命令在Rebol中传递URL时！参数，可以让你得到二进制响应或错误。因此，在执行GET或POST的“一次性”风格中，无处可获得响应头文件。如何获取Rebol3中的HTTP响应头？

result: read http://www.rebol.com

在这篇文章中，关于如何在Rebol2中做到这一点，它建议你必须打开一个端口！从港口的本地/头的字段获得它：

Rebol - HTTP response headers

这个工作在Rebol2，例如

hp: open http://www.rebol.com 
result: read hp 
probe hp/locals/headers/Content-Encoding

但在Rebol3，当我打开一个端口，并尝试这个当地人的领域该端口是空的。如何在Rebol3中实现相同的行为？

来源

2014-01-20 HostileFork

这是你在找什么？

>> hp: open http://www.rebol.com/ 
>> to string! read hp 
== {<!doctype html> 
<html><head> 
<meta name="generator" content="REBOL WIP Wiki"/> 
<meta name="date" content="16-Feb-2014/15:58:59-8:00"/> 
<meta name="rebol-version" content="2.100.97.4.2"/> 
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8"/> 
<meta http-equiv="Pragma" content="no-cache" /> 
<meta http-equiv="Expires" content="-1" /> 
<meta http-equiv="Cache-Control" content="no-cache" /> 
<meta name="Description" content="REBOL: a lightweight computer language with ad 
vanced semantics. ... 

>> query hp 
== make object! [ 
    name: %/ 
    size: 7118 
    date: none 
    type: 'file 
    response-line: "HTTP/1.1 200 OK" 
    response-parsed: 'ok 
    headers: make object! [ 
     Content-Length: 7118 
     Transfer-Encoding: none 
     Last-Modified: "Sun, 16 Feb 2014 23:58:59 GMT" 
     Date: "Sat, 05 Apr 2014 08:19:34 GMT" 
     Server: "Apache" 
     Accept-Ranges: "bytes" 
     Connection: "close" 
     Content-Type: "text/html" 
    ] 
]

来源

2014-04-05 08:21:45

酷......不知道查询，谢谢！ – HostileFork

一（啰嗦）解决方案：

target: http://www.rebol.com/ 
port: make port! target 
; make alterations to port/spec here, e.g. 
; port/spec/method -- HTTP method 
; port/spec/headers -- [set-word value] block of headers 
; port/spec/content -- content 
port/awake: func [event][ 
    switch event/type [ 
     connect [read event/port false] 
     done [true] 
    ] 
] 
open port 
response: query port 
wait [port 1] 
close port 
probe response

来源

2014-01-20 05:01:46 rgchris

预计一个更简洁的答案... – rgchris

如何获取Rebol3中的HTTP响应头？

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