httpd
上传用户:rrhhcc
上传日期:2015-12-11
资源大小:54129k
文件大小:5k
- #
- # The httpd_ procedures implement a stub http server.
- #
- # Copyright (c) 1997-1998 Sun Microsystems, Inc.
- # Copyright (c) 1999-2000 Scriptics Corporation
- #
- # See the file "license.terms" for information on usage and redistribution
- # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
- #
- # SCCS: @(#) httpd 1.2 98/02/20 14:51:59
- #set httpLog 1
- proc httpd_init {{port 8015}} {
- socket -server httpdAccept $port
- }
- proc httpd_log {args} {
- global httpLog
- if {[info exists httpLog] && $httpLog} {
- puts stderr "httpd: [join $args { }]"
- }
- }
- array set httpdErrors {
- 204 {No Content}
- 400 {Bad Request}
- 401 {Authorization Required}
- 404 {Not Found}
- 503 {Service Unavailable}
- 504 {Service Temporarily Unavailable}
- }
- proc httpdError {sock code args} {
- global httpdErrors
- puts $sock "$code $httpdErrors($code)"
- httpd_log "error: [join $args { }]"
- }
- proc httpdAccept {newsock ipaddr port} {
- global httpd
- upvar #0 httpd$newsock data
- fconfigure $newsock -blocking 0 -translation {auto crlf}
- httpd_log $newsock Connect $ipaddr $port
- set data(ipaddr) $ipaddr
- fileevent $newsock readable [list httpdRead $newsock]
- }
- # read data from a client request
- proc httpdRead { sock } {
- upvar #0 httpd$sock data
- if {[eof $sock]} {
- set readCount -1
- } elseif {![info exists data(state)]} {
- # Read the protocol line and parse out the URL and query
- set readCount [gets $sock line]
- if [regexp {(POST|GET|HEAD) ([^?]+)??([^ ]*) HTTP/(1.[01])}
- $line x data(proto) data(url) data(query) data(httpversion)] {
- set data(state) mime
- httpd_log $sock Query $line
- } else {
- httpdError $sock 400
- httpd_log $sock Error "bad first line:$line"
- httpdSockDone $sock
- }
- return
- } elseif {$data(state) == "mime"} {
- # Read the HTTP headers
- set readCount [gets $sock line]
- } elseif {$data(state) == "query"} {
- # Read the query data
- if {![info exists data(length_orig)]} {
- set data(length_orig) $data(length)
- }
- set line [read $sock $data(length)]
- set readCount [string length $line]
- incr data(length) -$readCount
- }
- # string compare $readCount 0 maps -1 to -1, 0 to 0, and > 0 to 1
- set state [string compare $readCount 0],$data(state),$data(proto)
- httpd_log $sock $state
- switch -- $state {
- -1,mime,HEAD -
- -1,mime,GET -
- -1,mime,POST {
- # gets would block
- return
- }
- 0,mime,HEAD -
- 0,mime,GET -
- 0,query,POST {
- # Empty line at end of headers,
- # or eof after query data
- httpdRespond $sock
- }
- 0,mime,POST {
- # Empty line between headers and query data
- if {![info exists data(mime,content-length)]} {
- httpd_log $sock Error "No Content-Length for POST"
- httpdError $sock 400
- httpdSockDone $sock
- } else {
- set data(state) query
- set data(length) $data(mime,content-length)
- # Special case to simulate servers that respond
- # without reading the post data.
- if {[string match *droppost* $data(url)]} {
- fileevent $sock readable {}
- httpdRespond $sock
- }
- }
- }
- 1,mime,HEAD -
- 1,mime,POST -
- 1,mime,GET {
- # A line of HTTP headers
- if {[regexp {([^:]+):[ ]*(.*)} $line dummy key value]} {
- set data(mime,[string tolower $key]) $value
- }
- }
- -1,query,POST {
- httpd_log $sock Error "unexpected eof on <$data(url)> request"
- httpdError $sock 400
- httpdSockDone $sock
- }
- 1,query,POST {
- append data(query) $line
- if {$data(length) <= 0} {
- set data(length) $data(length_orig)
- httpdRespond $sock
- }
- }
- default {
- if {[eof $sock]} {
- httpd_log $sock Error "unexpected eof on <$data(url)> request"
- } else {
- httpd_log $sock Error "unhandled state <$state> fetching <$data(url)>"
- }
- httpdError $sock 404
- httpdSockDone $sock
- }
- }
- }
- proc httpdSockDone { sock } {
- upvar #0 httpd$sock data
- unset data
- catch {close $sock}
- }
- # Respond to the query.
- proc httpdRespond { sock } {
- global httpd bindata port
- upvar #0 httpd$sock data
- switch -glob -- $data(url) {
- *binary* {
- set html "$bindata[info hostname]:$port$data(url)"
- set type application/octet-stream
- }
- *post* {
- set html "Got [string length $data(query)] bytes"
- set type text/plain
- }
- default {
- set type text/html
- set html "<html><head><title>HTTP/1.0 TEST</title></head><body>
- <h1>Hello, World!</h1>
- <h2>$data(proto) $data(url)</h2>
- "
- if {[info exists data(query)] && [string length $data(query)]} {
- append html "<h2>Query</h2>n<dl>n"
- foreach {key value} [split $data(query) &=] {
- append html "<dt>$key<dd>$valuen"
- if {$key == "timeout"} {
- after $value ;# pause
- }
- }
- append html </dl>n
- }
- append html </body></html>
- }
- }
-
- # Catch errors from premature client closes
- catch {
- if {$data(proto) == "HEAD"} {
- puts $sock "HTTP/1.0 200 OK"
- } else {
- puts $sock "HTTP/1.0 200 Data follows"
- }
- puts $sock "Date: [clock format [clock clicks]]"
- puts $sock "Content-Type: $type"
- puts $sock "Content-Length: [string length $html]"
- puts $sock ""
- flush $sock
- if {$data(proto) != "HEAD"} {
- fconfigure $sock -translation binary
- puts -nonewline $sock $html
- }
- }
- httpd_log $sock Done ""
- httpdSockDone $sock
- }