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weblet

v0.0.63

Published

Weblet is a Web HTTP Server software

Downloads

212

Readme

Weblet

Weblet 是一個 Web HTTP 服務器軟件.

(Weblet is a Web HTTP Server software.) 它是一個非常簡單的面向命令行的Web服務器軟件. 主要爲Web程式開發者提供一個極爲簡單的Web開發環境. 這個程式是用 SWordFish 語言開發的,也算是這個新的編程語言的一個開發示例. 同時也可以支持 CGI 腳本.也支持 WebSocket 服務。

安裝方法 ( Installation )

$ sudo npm install swordfish -g
$ sudo npm install weblet -g

用法示例:( Example )

在當前目錄下開啓一個 Web 服務.

$ weblet .

在指定的目錄 htmldoc 下開啓一個 Web 服務,並且設定以 cgi 爲後綴名的文件被視爲 CGI 程式.

$ weblet -x cgi htmldoc

在指定的目錄 htmldoc 下開啓一個 Web 服務,並且設定以 cgi 爲後綴名的文件被視爲 CGI 程式. 同時以 php 爲後綴名的文件被視爲 PHP 程式,指定其由 /usr/bin/php-cgi 程式來運行 PHP 腳本.

$ weblet -x cgi -x php=/usr/bin/php-cgi htmldoc

加 -p 8080 參數,指此 HTTP 服務綁定在系統 8080 端口上,如果不指定,默認端口爲 9999 .

$ weblet -p 8080 htmldoc

php-cgi 在 apache 以外時,要設置 php.ini 中的

cgi.force_redirect = 0
weblet -x php=D:\php\php-cgi.exe . 

一個 HTTPS 服務設置實例.(HTTPS Server Setup Example)

#產生一個key文件
$ openssl genrsa -out key.pem
#生成證書申請文件
$ openssl req -new -key key.pem -out csr.pem
#自簽發申請文件產生證書.
$ openssl x509 -req -in csr.pem -signkey key.pem -out cert.pem
#刪除申請文件
$ rm csr.pem
#最後開啓 HTTPS 服務
$ weblet -c cert.pem -k key.pem . 

概括的使用說明 ( Overview Usage )

顯示用法幫助:

$ weblet -h
Usage:
weblet [options] <directory>
Options:
 -x, <cgi>                 Identify CGI script by file suffix name. can set multiple times.
                           For example:
                             -x cgi
                             -x php=/usr/bin/php-cgi
 -p, <port>                listen port number. default 9999
 -a, <address>             Local interface to bind to for network connections. default 0.0.0.0
 -c, <CertificatePath>     HTTPS certificate file path.
 -k, <PrivatekeyPath>      HTTPS private key file path.
 -e, <path>                additional exe file path for CGI sub process.
 -s,                       Use a CGI script file to handle WebSocket connections. The -x option must be on
 -o,                       Open the URL to this service by browser window.
 -m,                      config mime type by extname. such as :-m .md=text/html
 -h,                    display this help and exit
Directory:  Document Root.

#一個打印環境變量的 CGI 腳本示例:

linux 系統下啓動 http server

$ weblet.sw -x swp .

windows 系統下啓動 http server

weblet.sw -x swp=swordfish .
#!/usr/bin/env swordfish
##
##  printenv.swp -- demo CGI program which just prints its environment
##
require:(JSEval "require")
path   :(require "path")
D      :(.path "sep")

nodejs: (JSCallObject [$PATH_SWORDFISH "nodejs"] "join" D)
(load (+ nodejs D "package.sw"))
prime:(JSCallObject [$PATH_SWORDFISH "prime"] "join" D)
((. use "PushINC") prime true)
((. use "PushINC") "." (GetScriptURI))

(use "app.info"
"io.print"
(lambda (AppInfo
print
)
	(print "Content-type: text/plain; charset=iso-8859-1\n\n")
	appInfo:((. AppInfo "Dump"))
	(print appInfo)
))

#開啓 WebSocket 服務

$ weblet -s -x swp .

在 windows 系統下可以這樣:

weblet -s -x swp=swordfish .

這樣以 .swp 結尾的 CGI 程式文件,會處理 WebSocket 鏈接。

這個 CGI 程式,必須是 swordfish ,或 nodejs 腳本。 因爲 它用 Nodejs 的 IPC Message 通訊機制 child.send() 每個 WebSocket 鏈接 會產生一個 CGI 進程。 WebSocket 鏈接關掉會導致 CGI 退出。 同樣 CGI 退出會導致 WebSocket 鏈接關掉。  同時 常規的 CGI 環境變量也會在 CGI 進程中有效。

以下是個簡單的 message 響應腳本.

#!/usr/bin/env swordfish
require:(JSEval "require")
path   :(require "path")
D      :(.path "sep")

nodejs: (JSCallObject [$PATH_SWORDFISH "nodejs"] "join" D)
(load (+ nodejs D "package.sw"))
prime:(JSCallObject [$PATH_SWORDFISH "prime"] "join" D)
((. use "PushINC") prime true)
((. use "PushINC") "." (GetScriptURI))

(use "app.info"
(lambda (AppInfo
)
	process:(JSEval "process")
	((. process "on") "message" (JSCallback (lambda (msg)
			((. process "send") msg)
			)
		))
))

#know issue: -x php=D:\php\php-cgi.exe 如果寫成 -x "php=D:\php \php-cgi.exe" 是不能工作的,因爲中間有空格,這時CGI子進程就命令行就成這樣了: D:\php "\php-cgi.exe" "current_cgi_script.php" 如果的確需要有空格程式如 : "C:\Program Files\php5\php-cgi.exe 可以這樣寫選項

-e "C:\Program Files\php5" -x php=php-cgi

因爲 -e 是加path環境變量,這樣具體exe文件就不用寫全路徑. 這樣寫是爲了繞開nodejs spawn 中給有空格的path會出錯的問題.