X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;f=robot.tcl;h=b6466c347186d9954fbdda74c78ed7054fab76c5;hb=9d3f82cd1140362487d8fa6372cac1b24a49d21e;hp=c539a0404eca88168513eb046aa9fddb79b0de85;hpb=10c922040186d738784fba9aab7295ab64d6e4d7;p=tclrobot.git
diff --git a/robot.tcl b/robot.tcl
index c539a04..b6466c3 100755
--- a/robot.tcl
+++ b/robot.tcl
@@ -1,21 +1,23 @@
#!/usr/bin/tclsh
-# $Id: robot.tcl,v 1.4 1999/02/04 20:37:25 perhans Exp $
+# $Id: robot.tcl,v 1.29 2001/11/14 09:15:23 adam Exp $
#
-proc RobotFileNext {area} {
+proc RobotFileNext1 {area lead} {
+ # puts "RobotFileNext1 area=$area lead=$lead"
if {[catch {set ns [glob ${area}/*]}]} {
return {}
}
- set off [string first / $area]
- incr off
foreach n $ns {
if {[file isfile $n]} {
- if {[string first :.html $n] > 0} {
- return http://[string range $area/ $off end]
- }
- return http://[string range $n $off end]
+ set off [string last / $n]
+ incr off 2
+ return $lead/[string range $n $off end]
}
- if {[file isdirectory $n]} {
- set sb [RobotFileNext $n]
+ }
+ foreach n $ns {
+ if {[file isdirectory $n]} {
+ set off [string last / $n]
+ incr off 2
+ set sb [RobotFileNext1 $n $lead/[string range $n $off end]]
if {[string length $sb]} {
return $sb
}
@@ -24,76 +26,235 @@ proc RobotFileNext {area} {
return {}
}
+proc RobotWriteRecord {outf fromurl distance} {
+ puts $outf ""
+ puts $outf ""
+ puts $outf $distance
+ puts $outf ""
+ puts $outf ""
+ puts $outf $fromurl
+ puts $outf ""
+ puts $outf ""
+}
+
+proc RobotReadRecord {inf fromurlx distancex} {
+ upvar $fromurlx fromurl
+ upvar $distancex distance
+ gets $inf
+ gets $inf
+ set distance [string trim [gets $inf]]
+ # puts "got distance = $distance"
+ gets $inf
+ gets $inf
+ set fromurl [string trim [gets $inf]]
+}
+
+proc RobotFileNext {area} {
+ global robotSeq
+ global idletime ns
+ global status
+
+ # puts "RobotFileNext robotSeq=$robotSeq"
+ if {$robotSeq < 0} {
+ return {}
+ }
+ if {$robotSeq == 0} {
+ if {[catch {set ns [glob ${area}/*]}]} {
+ return {}
+ }
+ }
+ set off [string length $area]
+ incr off
+ set n [lindex $ns $robotSeq]
+ if {![string length $n]} {
+ set robotSeq -1
+ flush stdout
+ set statusfile [open status w]
+ puts $statusfile "$status(unvisited) $status(bad) $status(visited)"
+ close $statusfile
+ return wait
+ }
+ incr robotSeq
+ if {[file isfile $n/frobots.txt]} {
+ puts "ok returning http://[string range $n $off end]/robots.txt"
+ return http://[string range $n $off end]/robots.txt
+ } elseif {[file isdirectory $n]} {
+ set sb [RobotFileNext1 $n http://[string range $n $off end]]
+ if {[string length $sb]} {
+ return $sb
+ }
+ }
+ puts "no more work at end of RobotFileNext n=$n"
+ puts "ns=$ns"
+ return {}
+}
+
+
proc RobotFileExist {area host path} {
- set comp [split $area/$host$path /]
- set l [llength $comp]
+ global debuglevel
+
+ if {$debuglevel > 3} {
+ puts "RobotFileExist begin area=$area host=$host path=$path"
+ }
+ set lpath [split $path /]
+ set l [llength $lpath]
incr l -1
- if {![string length [lindex $comp $l]]} {
- set comp [split $area/$host$path:.html /]
+ set t [lindex $lpath $l]
+ incr l -1
+ set npath $area/$host[join [lrange $lpath 0 $l] /d]/f$t
+ if {$debuglevel > 3} {
+ puts "RobotFileExist end npath=$npath"
}
- return [file exists [join $comp /]]
+ return [file exists $npath]
}
proc RobotFileUnlink {area host path} {
- set comp [split $area/$host$path /]
- set l [llength $comp]
+ global status
+ # puts "RobotFileUnlink begin"
+ # puts "area=$area host=$host path=$path"
+ set lpath [split $path /]
+ set l [llength $lpath]
incr l -1
- if {![string length [lindex $comp $l]]} {
- set comp [split $area/$host$path:.html /]
- }
+ set t [lindex $lpath $l]
+ incr l -1
+ set npath $area/$host[join [lrange $lpath 0 $l] /d]/f$t
+ # puts "npath=$npath"
+ set comp [split $npath /]
if {[catch {exec rm [join $comp /]}]} return
+
+ set l [llength $comp]
incr l -1
+ incr l -1
+ incr status($area) -1
for {set i $l} {$i > 0} {incr i -1} {
set path [join [lrange $comp 0 $i] /]
if {![catch {glob $path/*}]} return
exec rmdir ./$path
}
+ # puts "RobotFileUnlink end"
+}
+
+proc RobotFileClose {out} {
+ if [string compare $out stdout] {
+ close $out
+ }
}
-proc RobotFileOpen {area host path} {
+proc RobotFileOpen {area host path {mode w}} {
set orgPwd [pwd]
+ global workdir
+ global status
+ global debuglevel
+ if {![info exists workdir]} {
+ return stdout
+ }
+ if {$debuglevel > 3} {
+ puts "RobotFileOpen orgPwd=$orgPwd area=$area host=$host path=$path mode=$mode"
+ }
+ if {[string compare $orgPwd $workdir]} {
+ puts "ooops. RobotFileOpen failed"
+ puts "workdir = $workdir"
+ puts "pwd = $orgPwd"
+ exit 1
+ }
set comp [split $area/$host$path /]
set len [llength $comp]
incr len -1
for {set i 0} {$i < $len} {incr i} {
- set d [lindex $comp $i]
+ if {$i > 1} {
+ set d "d[lindex $comp $i]"
+ } else {
+ set d [lindex $comp $i]
+ }
if {[catch {cd ./$d}]} {
exec mkdir $d
cd ./$d
+ if {![string compare $area unvisited] && $i == 1 && $mode == "w"} {
+ set out [open frobots.txt w]
+ puts "creating robots.txt in $d"
+ close $out
+ incr status(unvisited)
+ }
}
}
set d [lindex $comp $len]
if {[string length $d]} {
- set out [open $d w]
+ set out [open f$d $mode]
+ if {0} {
+ if {[file isfile $d/f]} {
+ set out [open $d/f $mode]
+ } else {
+ set out [open f$d $mode]
+ }
+ }
} else {
- set out [open :.html w]
+ set out [open f $mode]
+ }
+ if {$mode == "w"} {
+ incr status($area)
}
cd $orgPwd
return $out
}
-proc RobotRestart {} {
- global URL
+proc RobotRR {} {
+ global robotSeq robotsRunning
+
+ incr robotsRunning -1
+ while {$robotsRunning} {
+ vwait robotsRunning
+ }
+ set robotSeq 0
+ RobotStart
+}
+
+proc RobotRestart {url sock} {
+ global URL robotsRunning
+
+ close $sock
+ after cancel $URL($sock,cancel)
+
+ foreach v [array names URL $url,*] {
+ unset URL($v)
+ }
+
+ incr robotsRunning -1
+ RobotStart
+}
- while {1} {
+proc RobotStart {} {
+ global URL
+ global robotsRunning robotsMax idletime
+
+ # puts "RobotStart"
+ while {1} {
set url [RobotFileNext unvisited]
- if {![string length $url]} break
+ if {![string length $url]} {
+ return
+ }
+ incr robotsRunning
+ if {[string compare $url wait] == 0} {
+ after $idletime RobotRR
+ return
+ }
set r [RobotGetUrl $url {}]
if {!$r} {
- return
+ if {$robotsRunning >= $robotsMax} return
} else {
- RobotFileUnlink unvisited $URL($url,host) $URL($url,path)
- }
+ incr robotsRunning -1
+ if {![RobotFileExist bad $URL($url,hostport) $URL($url,path)]} {
+ set outf [RobotFileOpen bad $URL($url,hostport) $URL($url,path)]
+ RobotFileClose $outf
+ }
+ RobotFileUnlink unvisited $URL($url,hostport) $URL($url,path)
+ }
}
- exit 0
}
-proc headSave {url out title} {
+proc headSave {url out} {
global URL
-
- puts $out {}
- puts $out "
$title"
+
if {[info exists URL($url,head,last-modified)]} {
puts $out "$URL($url,head,last-modified)"
}
@@ -116,161 +277,486 @@ proc headSave {url out title} {
puts $out {}
}
-proc RobotSave {url} {
- global URL domains
+proc RobotHref {url hrefx hostx pathx} {
+ global URL domains debuglevel
+ upvar $hrefx href
+ upvar $hostx host
+ upvar $pathx path
+
+ if {$debuglevel > 1} {
+ puts "Ref input url = $url href=$href"
+ }
+
+ if {[string first { } $href] >= 0} {
+ return 0
+ }
+ if {[string length $href] > 256} {
+ return 0
+ }
+ if {[string first {?} $href] >= 0} {
+ return 0
+ }
+ if {[string first {?} $url] >= 0 && [string first {?} $href] >= 0} {
+ return 0
+ }
+ # 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 surl]} {
+ if {![string length $surl]} {
+ set surl /
+ }
+ if {[info exist domains]} {
+ set ok 0
+ foreach domain $domains {
+ if {[string match $domain $host]} {
+ set ok 1
+ break
+ }
+ }
+ if {!$ok} {
+ return 0
+ }
+ }
+ } else {
+ regexp {^([^\#]*)} $hpath x surl
+ set host $URL($url,hostport)
+ }
+ if {![string length $surl]} {
+ return 0
+ }
+ if {[string first / $surl]} {
+ # relative path
+ set curpath $URL($url,path)
+ if {[info exists URL($url,bpath)]} {
+ set curpath $URL($url,bpath)
+ }
+ regexp {^([^\#?]*)} $curpath x dpart
+ set l [string last / $dpart]
+ if {[expr $l >= 0]} {
+ set surl [string range $dpart 0 $l]$surl
+ } else {
+ set surl $dpart/$surl
+ }
+ }
+ set surllist [split $surl /]
+ catch {unset path}
+ set pathl 0
+ foreach c $surllist {
+ switch -- $c {
+ .. {
+ if {$pathl > 1} {
+ incr pathl -2
+ set path [lrange $path 0 $pathl]
+ incr pathl
+ }
+ }
+ . {
+
+ }
+ default {
+ incr pathl
+ lappend path $c
+ }
+ }
+ }
+ if {$debuglevel > 4} {
+ puts "pathl=$pathl output path=$path"
+ }
+ set path [join $path /]
+ if {![string length $path]} {
+ set path /
+ }
+ regsub -all {~} $path {%7E} path
+ set href "$method://$host$path"
+
+ if {$debuglevel > 1} {
+ puts "Ref result = $href"
+ }
+ return [checkrule url $href]
+}
+
+proc RobotError {url code} {
+ global URL
+
+ puts "Bad URL $url (code $code)"
+ set fromurl {}
+ set distance -1
+ if {[RobotFileExist unvisited $URL($url,hostport) $URL($url,path)]} {
+ set inf [RobotFileOpen unvisited $URL($url,hostport) $URL($url,path) r]
+ RobotReadRecord $inf fromurl distance
+ RobotFileClose $inf
+ }
+ RobotFileUnlink unvisited $URL($url,hostport) $URL($url,path)
+ if {![RobotFileExist bad $URL($url,hostport) $URL($url,path)]} {
+ set outf [RobotFileOpen bad $URL($url,hostport) $URL($url,path)]
+ RobotWriteRecord $outf $fromurl $distance
+ RobotFileClose $outf
+ }
+}
+
+proc RobotRedirect {url tourl code} {
+ global URL
+
+ puts "Redirecting from $url to $tourl"
+
+ set distance {}
+ set fromurl {}
+ if {[RobotFileExist unvisited $URL($url,hostport) $URL($url,path)]} {
+ set inf [RobotFileOpen unvisited $URL($url,hostport) $URL($url,path) r]
+ RobotReadRecord $inf fromurl distance
+ RobotFileClose $inf
+ }
+ if {![RobotFileExist bad $URL($url,hostport) $URL($url,path)]} {
+ set outf [RobotFileOpen bad $URL($url,hostport) $URL($url,path)]
+ RobotWriteRecord $outf $fromurl $distance
+ RobotFileClose $outf
+ }
+ if {[RobotHref $url tourl host path]} {
+ if {![RobotFileExist visited $host $path]} {
+ if {![RobotFileExist unvisited $host $path]} {
+ set outf [RobotFileOpen unvisited $host $path]
+ RobotWriteRecord $outf $fromurl $distance
+ RobotFileClose $outf
+ }
+ } else {
+ set olddistance {}
+ set inf [RobotFileOpen visited $host $path r]
+ RobotReadRecord $inf oldurl olddistance
+ RobotFileClose $inf
+ if {[string length $olddistance] == 0} {
+ set olddistance 1000
+ }
+ if {[string length $distance] == 0} {
+ set distance 1000
+ }
+ puts "distance=$distance olddistance=$olddistance"
+ if {[expr $distance < $olddistance]} {
+ set outf [RobotFileOpen unvisited $host $path]
+ RobotWriteRecord $outf $tourl $distance
+ RobotFileClose $outf
+ }
+ }
+ }
+ if {[catch {RobotFileUnlink unvisited $URL($url,hostport) $URL($url,path)}]} {
+ puts "unlink failed"
+ exit 1
+ }
+}
+
+proc link {url out href body distance} {
+ global URL maxdistance
+ if {[expr $distance > $maxdistance]} return
+
+ if {![RobotHref $url href host path]} return
- 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]
-
- htmlSwitch $htmlContent \
+ puts $out ""
+ puts $out "$href"
+ puts $out "$body"
+ puts $out ""
+
+ if {![RobotFileExist visited $host $path]} {
+ set olddistance 1000
+ if {![RobotFileExist bad $host $path]} {
+ if {[RobotFileExist unvisited $host $path]} {
+ set inf [RobotFileOpen unvisited $host $path r]
+ RobotReadRecord $inf oldurl olddistance
+ RobotFileClose $inf
+ }
+ } else {
+ set olddistance 0
+ }
+ if {[string length $olddistance] == 0} {
+ set olddistance 1000
+ }
+ if {[expr $distance < $olddistance]} {
+ set outf [RobotFileOpen unvisited $host $path]
+ RobotWriteRecord $outf $url $distance
+ RobotFileClose $outf
+ }
+ } elseif {[string compare $href $url]} {
+ set inf [RobotFileOpen visited $host $path r]
+ RobotReadRecord $inf xurl olddistance
+ close $inf
+ if {[string length $olddistance] == 0} {
+ set olddistance 1000
+ }
+ if {[expr $distance < $olddistance]} {
+ puts "OK remarking url=$url href=$href"
+ puts "olddistance = $olddistance"
+ puts "newdistance = $distance"
+ set outf [RobotFileOpen unvisited $host $path]
+ RobotWriteRecord $outf $url $distance
+ RobotFileClose $outf
+ }
+ }
+}
+
+proc RobotTextHtml {url out} {
+ global URL maxdistance
+
+ set distance 0
+ set fdistance 0
+ if {$maxdistance < 1000 && [info exists URL($url,dist)]} {
+ set fdistance $URL($url,dist)
+ set distance [expr $fdistance + 1]
+ }
+ htmlSwitch $URL($url,buf) \
title {
- if {!$ti} {
- headSave $url $out $body
- set ti 1
+ puts $out "$body"
+ } -nonest meta {
+ puts -nonewline $out "}
} body {
- regsub -all -nocase {} $body {} abody
- regsub -all {<[^\>]+>} $abody {} nbody
+ regsub -all {