X-Git-Url: http://git.indexdata.com/?a=blobdiff_plain;ds=sidebyside;f=robot.tcl;h=793298c6ff9f955b149d72ca8e653e59ce27eb43;hb=2e203397567386e2806359f5ac678491d184b047;hp=82e5c28ce8ee9ba634c85235473b450adaa44eec;hpb=de694c0a797c955ec564b91fee7d0293ce9bd03c;p=tclrobot.git
diff --git a/robot.tcl b/robot.tcl
index 82e5c28..793298c 100755
--- a/robot.tcl
+++ b/robot.tcl
@@ -1,8 +1,8 @@
#!/usr/bin/tclsh
-# $Id: robot.tcl,v 1.9 2000/12/11 17:11:03 adam Exp $
+# $Id: robot.tcl,v 1.33 2002/03/25 16:13:21 adam Exp $
#
proc RobotFileNext1 {area lead} {
- puts "RobotFileNext1 area=$area lead=$lead"
+ # puts "RobotFileNext1 area=$area lead=$lead"
if {[catch {set ns [glob ${area}/*]}]} {
return {}
}
@@ -26,35 +26,53 @@ proc RobotFileNext1 {area lead} {
return {}
}
-proc RobotFileWait {} {
- global robotSeq
- set robotSeq 0
+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 $inf]]
}
proc RobotFileNext {area} {
global robotSeq
- puts "RobotFileNext robotSeq=$robotSeq"
- if {[catch {set ns [glob ${area}/*]}]} {
- return {}
+ global idletime ns
+ global status
+
+ # puts "RobotFileNext robotSeq=$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]} {
- flush stdout
- puts "------------ N E X T R O U N D --------"
set robotSeq -1
- after 60000 RobotFileWait
- vwait robotSeq
-
- set n [lindex $ns $robotSeq]
- if {![string length $n]} {
- puts "robotSeq = $robotSeq"
- puts "ns=$ns"
- puts "no more work at index"
- return {}
- }
+ flush stdout
+ set statusfile [open status w]
+ puts $statusfile "$status(unvisited) $status(bad) $status(visited)"
+ close $statusfile
+ return wait
}
incr robotSeq
if {[file isfile $n/frobots.txt]} {
@@ -73,40 +91,47 @@ proc RobotFileNext {area} {
proc RobotFileExist {area host path} {
- puts "RobotFileExist begin"
- puts "area=$area host=$host path=$path"
+ 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
set t [lindex $lpath $l]
incr l -1
set npath $area/$host[join [lrange $lpath 0 $l] /d]/f$t
- puts "npath=$npath"
- puts "RobotFileExist end"
+ if {$debuglevel > 3} {
+ puts "RobotFileExist end npath=$npath"
+ }
return [file exists $npath]
}
proc RobotFileUnlink {area host path} {
- puts "RobotFileUnlink begin"
- puts "area=$area host=$host path=$path"
+ global status
+ # puts "RobotFileUnlink begin"
+ # puts "area=$area host=$host path=$path"
set lpath [split $path /]
set l [llength $lpath]
incr l -1
set t [lindex $lpath $l]
incr l -1
set npath $area/$host[join [lrange $lpath 0 $l] /d]/f$t
- puts "npath=$npath"
+ # puts "npath=$npath"
set comp [split $npath /]
+ if {[catch {exec rm [join $comp /]}]} return
+
set l [llength $comp]
incr l -1
- if {[catch {exec rm [join $comp /]}]} return
incr l -1
+ incr status($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"
+ # puts "RobotFileUnlink end"
}
proc RobotFileClose {out} {
@@ -118,11 +143,15 @@ proc RobotFileClose {out} {
proc RobotFileOpen {area host path {mode w}} {
set orgPwd [pwd]
global workdir
+ global status
+ global debuglevel
if {![info exists workdir]} {
return stdout
}
- puts "RobotFileOpen orgPwd=$orgPwd area=$area host=$host path=$path mode=$mode"
+ if {$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 = $workdir"
@@ -140,52 +169,82 @@ proc RobotFileOpen {area host path {mode w}} {
}
if {[catch {cd ./$d}]} {
exec mkdir $d
- puts "creating $d"
cd ./$d
if {![string compare $area unvisited] && $i == 1 && $mode == "w"} {
- set out [open frobots.txt w]
- puts "creating robots.txt in $d"
- close $out
+ if {[string compare $path /robots.txt]} {
+ 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]} {
- if {[file isdirectory $d]} {
- set out [open $d/f $mode]
- puts "1"
- } else {
- set out [open f$d $mode]
- puts "2"
- }
+ set out [open f$d $mode]
} else {
set out [open f $mode]
- puts "3"
+ }
+ if {$mode == "w"} {
+ incr status($area)
}
cd $orgPwd
- #puts "RobotFileStop"
return $out
}
-proc RobotRestart {sock} {
- global URL
- global robotMoreWork
-
+proc RobotRR {} {
+ global robotSeq robotsRunning
+
+ incr robotsRunning -1
+ while {$robotsRunning} {
+ vwait robotsRunning
+ }
+ set robotSeq 0
+ RobotStart
+}
+
+proc RobotRestart {url sock} {
+ global URL robotsRunning
+
close $sock
after cancel $URL($sock,cancel)
- while {1} {
+
+ foreach v [array names URL $url,*] {
+ unset URL($v)
+ }
+
+ incr robotsRunning -1
+ RobotStart
+}
+
+proc RobotStart {} {
+ global URL
+ global robotsRunning robotsMax idletime
+
+ # puts "RobotStart"
+ while {1} {
set url [RobotFileNext unvisited]
if {![string length $url]} {
- break
+ 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)
+ }
}
- incr robotMoreWork -1
}
proc headSave {url out} {
@@ -214,12 +273,26 @@ proc headSave {url out} {
}
proc RobotHref {url hrefx hostx pathx} {
- global URL domains
+ global URL domains debuglevel
upvar $hrefx href
upvar $hostx host
upvar $pathx path
- puts "Ref url = $url href=$href"
+ if {$debuglevel > 1} {
+ puts "Ref input url = $url href=$href"
+ }
+
+ if {[string first { } $href] >= 0} {
+ return 0
+ }
+ if {[string length $href] > 256} {
+ return 0
+ }
+
+# Skip pages that have ? in them
+# if {[string first {?} $url] >= 0 && [string first {?} $href] >= 0} {
+# return 0
+# }
# get method (if any)
if {![regexp {^([^/:]+):(.*)} $href x method hpath]} {
set hpath $href
@@ -234,26 +307,32 @@ proc RobotHref {url hrefx hostx pathx} {
if {![string length $surl]} {
set surl /
}
- set ok 0
- foreach domain $domains {
- if {[string match $domain $host]} {
- set ok 1
- break
+ if {[info exist domains]} {
+ set ok 0
+ foreach domain $domains {
+ if {[string match $domain $host]} {
+ set ok 1
+ break
+ }
}
- }
- if {!$ok} {
- return 0
- }
+ if {!$ok} {
+ return 0
+ }
+ }
} else {
regexp {^([^\#]*)} $hpath x surl
- set host $URL($url,host)
+ set host $URL($url,hostport)
}
if {![string length $surl]} {
return 0
}
if {[string first / $surl]} {
# relative path
- regexp {^([^\#?]*)} $URL($url,path) x dpart
+ 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
@@ -261,58 +340,58 @@ proc RobotHref {url hrefx hostx pathx} {
set surl $dpart/$surl
}
}
- set c [split $surl /]
- set i [llength $c]
- incr i -1
- set path [lindex $c $i]
- incr i -1
- while {$i >= 0} {
- switch -- [lindex $c $i] {
+ set surllist [split $surl /]
+ catch {unset path}
+ set pathl 0
+ foreach c $surllist {
+ switch -- $c {
.. {
- incr i -2
- if {$i < 0} {
- set i 0
+ if {$pathl > 1} {
+ incr pathl -2
+ set path [lrange $path 0 $pathl]
+ incr pathl
}
}
- . {
- incr i -1
- }
- default {
- set path [lindex $c $i]/$path
- incr i -1
+ . {
+
+ }
+ default {
+ incr pathl
+ lappend path $c
}
}
}
- regsub -all {~} $path {%7E} path
- set ok 1
- if {[info exists URL($host,robots)]} {
- foreach l $URL($host,robots) {
- if {[string first [lindex $l 1] $path] == 0} {
- set ok [lindex $l 0]
- break
- }
- }
+ if {$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"
- puts "Ref href = $href, ok=$ok"
- return $ok
+
+ if {$debuglevel > 1} {
+ puts "Ref result = $href"
+ }
+ return [checkrule url $href]
}
proc RobotError {url code} {
global URL
- puts "Bad URL $url, $code"
+ puts "Bad URL $url (code $code)"
set fromurl {}
- if {[RobotFileExist unvisited $URL($url,host) $URL($url,path)]} {
- set inf [RobotFileOpen unvisited $URL($url,host) $URL($url,path) r]
- set fromurl [gets $inf]
- close $inf
- }
- 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)]
- puts $outf "URL=$url $code"
- puts $outf "Reference $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
}
}
@@ -322,103 +401,214 @@ proc RobotRedirect {url tourl code} {
puts "Redirecting from $url to $tourl"
+ set distance {}
set fromurl {}
- if {[RobotFileExist unvisited $URL($url,host) $URL($url,path)]} {
- set inf [RobotFileOpen unvisited $URL($url,host) $URL($url,path) r]
- set fromurl [gets $inf]
+ 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 {[catch {RobotFileUnlink unvisited $URL($url,host) $URL($url,path)}]} {
- puts "unlink failed"
- exit 1
- }
- if {![RobotFileExist bad $URL($url,host) $URL($url,path)]} {
- set outf [RobotFileOpen bad $URL($url,host) $URL($url,path)]
- puts $outf "URL=$url to $tourl $code"
- puts $outf "Reference $fromurl"
+ 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 unvisited $host $path]} {
- puts "Mark as unvisited"
- set outf [RobotFileOpen unvisited $host $path]
- puts $outf $code
- RobotFileClose $outf
+ 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
+
+ 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 $outf
+ }
+ }
}
proc RobotTextHtml {url out} {
- global URL
+ global URL maxdistance
+
+ # set title so we can emit it for the body
+ set title {}
+ # if true, nothing will be indexed
+ set noindex 0
+ # if true, nothing will be followed
+ set nofollow 0
+ set distance 0
+ set fdistance 0
+ if {$maxdistance < 1000 && [info exists URL($url,dist)]} {
+ set fdistance $URL($url,dist)
+ set distance [expr $fdistance + 1]
+ }
htmlSwitch $URL($url,buf) \
title {
- puts $out "
$body"
+ set title $body
} -nonest meta {
+ # collect metadata and save NAME= CONTENT=..
+ set metaname {}
+ set metacontent {}
puts -nonewline $out ""
+ # go through robots directives (af any)
+ if {![string compare $metaname robots]} {
+ set direcs [split [string tolower $metacontent] ,]
+ if {[lsearch $direcs noindex] >= 0} {
+ set noindex 1
+ }
+ if {[lsearch $direcs nofollow] >= 0} {
+ set nofollow 1
+ }
}
- puts $out {>}
} body {
- regsub -all -nocase {} $body {} abody
- regsub -all {<[^\>]+>} $abody {} nbody
- puts $out ""
- puts $out $nbody
- puts $out ""
+ # don't print title of document content if noindex is used
+ if {!$noindex} {
+ puts $out "$title"
+ regsub -all {} $body { } abody
+ regsub -all -nocase {