#!/usr/bin/tclsh
-# $Id: robot.tcl,v 1.4 1999/02/04 20:37:25 perhans Exp $
+# $Id: robot.tcl,v 1.5 1999/12/27 11:49:31 adam Exp $
#
proc RobotFileNext {area} {
if {[catch {set ns [glob ${area}/*]}]} {
}
set off [string first / $area]
incr off
+
foreach n $ns {
if {[file isfile $n]} {
if {[string first :.html $n] > 0} {
incr l -1
if {![string length [lindex $comp $l]]} {
set comp [split $area/$host$path:.html /]
+ } elseif {[file exists [join $comp /]]} {
+ return 1
+ } else {
+ set comp [split $area/$host$path/:.html /]
}
return [file exists [join $comp /]]
}
proc RobotFileOpen {area host path} {
set orgPwd [pwd]
+ global workdir
+ #puts "RobotFileOpen orgPwd=$orgPwd area=$area host=$host path=$path"
+ if {[string compare $orgPwd $workdir]} {
+ puts "workdir = $workdir"
+ puts "pwd = $orgPwd"
+ exit 1
+ }
set comp [split $area/$host$path /]
set len [llength $comp]
incr len -1
set out [open :.html w]
}
cd $orgPwd
+ #puts "RobotFileStop"
return $out
}
proc RobotRestart {} {
global URL
-
+
while {1} {
set url [RobotFileNext unvisited]
- if {![string length $url]} break
+ if {![string length $url]} {
+ puts "No more unvisited"
+ break
+ }
set r [RobotGetUrl $url {}]
if {!$r} {
+ puts "RobotGetUrl returned 0 on url=$url"
return
} else {
RobotFileUnlink unvisited $URL($url,host) $URL($url,path)
proc headSave {url out title} {
global URL
-
+
puts $out {<meta>}
puts $out "<title>$title</title>"
if {[info exists URL($url,head,last-modified)]} {
puts $out {</publisher>}
}
-proc RobotSave {url} {
+proc RobotHref {url hrefx hostx pathx} {
+ global URL domains
+ upvar $hrefx href
+ upvar $hostx host
+ upvar $pathx path
+
+ # puts "Ref url = $url href=$href"
+ # get method (if any)
+ if {![regexp {^([^/:]+):(.*)} $href x method hpath]} {
+ set hpath $href
+ set method http
+ } else {
+ if {[string compare $method http]} {
+ return 0
+ }
+ }
+ # get host (if any)
+ if {![regexp {^//([^/]+)(.*)} $hpath x host epath]} {
+ set epath $hpath
+ set host $URL($url,host)
+ } else {
+ if {![string length $epath]} {
+ set epath /
+ }
+ set ok 0
+ foreach domain $domains {
+ if {[string match $domain $host]} {
+ set ok 1
+ break
+ }
+ }
+ if {!$ok} {
+ return 0
+ }
+ }
+ if {[regexp {^(\#|\?)} $epath]} {
+ # within page
+ return 0
+ } elseif {![regexp {^([/][^\#?]*)} $epath x path]} {
+ # relative path
+ set ext [file extension $URL($url,path)]
+ if {[string compare $ext {}]} {
+ set dpart [file dirname $URL($url,path)]
+ } else {
+ set dpart $URL($url,path)
+ }
+ regexp {^([^\#?]+)} $epath x path
+ set path [string trimright $dpart /]/$path
+ }
+ set c [split $path /]
+ set i [llength $c]
+ incr i -1
+ set path [lindex $c $i]
+ incr i -1
+ while {$i >= 0} {
+ switch -- [lindex $c $i] {
+ .. {
+ incr i -2
+ }
+ . {
+ incr i -1
+ }
+ default {
+ set path [lindex $c $i]/$path
+ incr i -1
+ }
+ }
+ }
+ set href "$method://$host$path"
+ # puts "Ref href = $href"
+ return 1
+}
+
+proc Robot401 {url} {
+ global URL
+
+ puts "Bad link $url"
+ RobotFileUnlink unvisited $URL($url,host) $URL($url,path)
+ if {![RobotFileExist forbidden $URL($url,host) $URL($url,path)]} {
+ set outf [RobotFileOpen forbidden $URL($url,host) $URL($url,path)]
+ close $outf
+ }
+}
+
+proc Robot404 {url} {
+ global URL
+
+ puts "Bad link $url"
+ RobotFileUnlink unvisited $URL($url,host) $URL($url,path)
+ if {![RobotFileExist bad $URL($url,host) $URL($url,path)]} {
+ set outf [RobotFileOpen bad $URL($url,host) $URL($url,path)]
+ close $outf
+ }
+}
+
+proc Robot301 {url tourl} {
+ global URL
+
+ puts "Redirecting from $url to $tourl"
+ RobotFileUnlink unvisited $URL($url,host) $URL($url,path)
+ if {[RobotHref $url tourl host path]} {
+ if {![RobotFileExist unvisited $host $path]} {
+ set outf [RobotFileOpen unvisited $host $path]
+ close $outf
+ }
+ }
+}
+
+proc Robot200 {url} {
global URL domains
+ # puts "Parsing $url"
set out [RobotFileOpen visited $URL($url,host) $URL($url,path)]
set ti 0
- if {[info exists URL($url,line)]} {
- set htmlContent [join $URL($url,line) \n]
+ if {[info exists URL($url,buf)]} {
+ set htmlContent $URL($url,buf)
htmlSwitch $htmlContent \
title {
headSave $url $out "untitled"
set ti 1
}
-
- if {[regexp {^\#} $parm(href)]} {
- continue
- } elseif {[regexp {^([^:]+):([^#]+)} $parm(href) x method hpath]} {
- set ok 0
- if {![string compare $method http]} {
- if {![regexp {^//([^/]+)(.*)} $hpath x host path]} {
- set host $URL($url,host)
- set path $hpath
- }
- foreach domain $domains {
- if {[string match $domain $host]} {
- set ok 1
- break
- }
- }
- }
- if {!$ok} continue
- } elseif {[regexp {^([/~][^#]*)} $parm(href) x path]} {
- set host $URL($url,host)
- set method http
- } else {
- set ext [file extension $URL($url,path)]
- if {[string compare $ext {}]} {
- set dpart [file dirname $URL($url,path)]
- } else {
- set dpart $URL($url,path)
- }
- regexp {^([^#]+)} $parm(href) x path
- set host $URL($url,host)
- set path [string trimright $dpart /]/$path
- set method http
- }
- set ext [file extension $path]
- if {![string length $ext]} {
- set path [string trimright $path /]/
- } else {
- set path [string trimright $path /]
- }
- set c [split $path /]
- set i [llength $c]
- incr i -1
- set path [lindex $c $i]
- incr i -1
- while {$i >= 0} {
- switch -- [lindex $c $i] {
- .. {
- incr i -2
- }
- . {
- incr i -1
- }
- default {
- set path [lindex $c $i]/$path
- incr i -1
- }
- }
- }
- set href "$method://$host$path"
-
- puts $out "<cr>"
- puts $out "<identifier>$href</identifier>"
- puts $out "<description>$body</description>"
- puts $out "</cr>"
-
- if {![regexp {/.*bin/} $href)]} {
- if {![RobotFileExist visited $host $path]} {
- set outf [RobotFileOpen unvisited $host $path]
- close $outf
- }
- }
+ if {1} {
+ set href $parm(href)
+ if {![RobotHref $url href host path]} continue
+
+ puts $out "<cr>"
+ puts $out "<identifier>$href</identifier>"
+ puts $out "<description>$body</description>"
+ puts $out "</cr>"
+
+ if {![RobotFileExist visited $host $path]} {
+ if {[catch {set outf [RobotFileOpen unvisited $host $path]} msg]} {
+ puts "--- Error $msg"
+ exit 1
+ }
+ close $outf
+ }
+ }
}
}
if {!$ti} {
- headSave $url $out "untitled"
- set ti 1
+ headSave $url $out "untitled"
+ set ti 1
}
puts $out "</meta>"
close $out
+ # puts "Parsing done"
RobotFileUnlink unvisited $URL($url,host) $URL($url,path)
}
-proc RobotRead {url sock} {
+proc RobotReadBody {url sock} {
global URL
- set readCount [gets $sock line]
- if {$readCount < 0} {
- if [eof $sock] {
- close $sock
- RobotSave $url
- RobotRestart
- }
- } elseif {$readCount > 0} {
- switch $URL($url,state) {
- head {
- puts "head: $line"
- if {[regexp {([^:]+):[ ]+(.*)} $line x name value]} {
- set URL($url,head,[string tolower $name]) $value
- }
- }
- html {
- lappend URL($url,line) $line
- }
- skip {
- close $sock
- RobotSave $url
- RobotRestart
- }
- }
+ set buffer [read $sock 16384]
+ set readCount [string length $buffer]
+
+ if {$readCount <= 0} {
+ close $sock
+ Robot200 $url
+ RobotRestart
} else {
- set URL($url,state) html
- if {[info exists URL($url,head,content-type)]} {
- if {![string compare $URL($url,head,content-type) text/html]} {
- set URL($url,state) html
- }
- }
+ # puts "Got $readCount bytes"
+ set URL($url,buf) $URL($url,buf)$buffer
+ }
+}
+
+proc RobotReadHead {url sock} {
+ global URL
+
+ set buffer [read $sock 8192]
+ set readCount [string length $buffer]
+
+ if {$readCount <= 0} {
+ Robot404 $url
+ close $sock
+ RobotRestart
+ } else {
+ # puts "Got $readCount bytes"
+ set URL($url,buf) $URL($url,buf)$buffer
+
+ set n [string first \n\n $URL($url,buf)]
+ if {$n > 1} {
+ set code 0
+ set version {}
+ set headbuf [string range $URL($url,buf) 0 $n]
+ incr n
+ incr n
+ set URL($url,buf) [string range $URL($url,buf) $n end]
+
+ regexp {^HTTP/([0-9.]+)[ ]+([0-9]+)} $headbuf x version code
+ set lines [split $headbuf \n]
+ foreach line $lines {
+ if {[regexp {^([^:]+):[ ]+(.*)} $line x name value]} {
+ set URL($url,head,[string tolower $name]) $value
+ }
+ }
+ puts "code = $code"
+ set URL($url,state) skip
+ switch $code {
+ 301 {
+ Robot301 $url $URL($url,head,location)
+ close $sock
+ RobotRestart
+ }
+ 302 {
+ Robot301 $url $URL($url,head,location)
+ close $sock
+ RobotRestart
+ }
+ 404 {
+ Robot404 $url
+ close $sock
+ RobotRestart
+ }
+ 401 {
+ Robot401 $url
+ close $sock
+ RobotRestart
+ }
+ 200 {
+ if {[info exists URL($url,head,content-type)]} {
+ if {![string compare $URL($url,head,content-type) text/html]} {
+ set URL($url,state) html
+ }
+ }
+ if {[string compare $URL($url,state) html]} {
+ close $sock
+ Robot200 $url
+ RobotRestart
+ } else {
+ fileevent $sock readable [list RobotReadBody $url $sock]
+ }
+ }
+ default {
+ Robot404 $url
+ close $sock
+ RobotRestart
+ }
+ }
+ }
}
}
proc RobotConnect {url sock} {
global URL
- fileevent $sock readable [list RobotRead $url $sock]
+ fconfigure $sock -translation {auto crlf} -blocking 0
+ puts "Reading $url"
+ fileevent $sock readable [list RobotReadHead $url $sock]
puts $sock "GET $URL($url,path) HTTP/1.0"
+ puts $sock "Host: $URL($url,host)"
puts $sock ""
flush $sock
}
proc RobotGetUrl {url phost} {
global URL
- set port 80
puts "---------"
puts $url
- if {[regexp {([^:]+)://([^/]+)([^ ]*)} $url x method host path]} {
- puts "method=$method host=$host path=$path"
- } else {
+ if {![regexp {([^:]+)://([^/]+)([^ ]*)} $url x method hostport path]} {
return -1
}
+ if {![regexp {([^:]+):([0-9]+)} $hostport x host port]} {
+ set port 80
+ set host $hostport
+ }
set URL($url,method) $method
set URL($url,host) $host
set URL($url,port) $port
set URL($url,path) $path
set URL($url,state) head
+ set URL($url,buf) {}
if [catch {set sock [socket -async $host $port]}] {
return -1
}
- fconfigure $sock -translation {auto crlf}
RobotConnect $url $sock
return 0
if {![llength [info commands htmlSwitch]]} {
set e [info sharedlibextension]
if {[catch {load ./tclrobot$e}]} {
- load tclrobot$e
+ load tclrobot$e
}
}
puts " Example: '*.dk' www.indexdata.dk"
exit 1
}
+
+set workdir [pwd]
+
set domains [lindex $argv 0]
set site [lindex $argv 1]
if {[string length $site]} {
close $x
}
+
RobotRestart
vwait forever
projects / tclrobot.git / blobdiff