# Copyright (C) 1999-2018
# Smithsonian Astrophysical Observatory, Cambridge, MA, USA
# For conditions of distribution and use, see copyright notice in "copyright"
package provide DS9 1.0
proc HVCancel {varname} {
upvar #0 $varname var
global $varname
global debug
if {$debug(tcl,hv)} {
puts stderr "HVCancel"
}
# set state to 0 so that we don't process the finish proc
set var(active) 0
# stop any refresh
if {$var(refresh,id)>0} {
after cancel $var(refresh,id)
set var(refresh,id) 0
}
# analysis
if {$var(analysis)} {
AnalysisTaskEnd $var(analysis,which) $var(analysis,i)
HVSetAnalysis $varname 0 {} 0
}
# clean up
HVClearTmpFile $varname
if {[info exists var(token)]} {
http::reset $var(token)
}
if {[info exists var(widget)]} {
$var(widget) configure -cursor {}
}
}
proc HVDestroy {varname} {
upvar #0 $varname var
global $varname
global ihv
global debug
if {$debug(tcl,hv)} {
puts stderr "HVDestroy"
}
HVCancel $varname
# clear the widge and all images
$var(widget) clear
# clear image cache
foreach x [array names $varname "images,*"] {
image delete $var($x)
unset ${varname}($x)
}
# clear cache
HVClearCache $varname
# destroy the window and menubar
if {[winfo exists $var(top)]} {
destroy $var(top)
destroy $var(mb)
}
# delete it from the xpa list
set ii [lsearch $ihv(windows) $varname]
if {$ii>=0} {
set ihv(windows) [lreplace $ihv(windows) $ii $ii]
}
# clear varname
unset $varname
}
proc HVReset {varname} {
upvar #0 $varname var
global $varname
set var(active) 0
if {[info exists var(token)]} {
global debug
if {$debug(tcl,hv)} {
puts stderr "HVReset ***cleanup***"
}
http::cleanup $var(token)
unset var(token)
}
}
proc HVDone {varname} {
upvar #0 $varname var
global $varname
HVStatus $varname {}
HVReset $varname
}
proc HVCancelled {varname} {
upvar #0 $varname var
global $varname
HVStatus $varname {}
HVReset $varname
}
proc HVError {varname err} {
upvar #0 $varname var
global $varname
global debug
if {$debug(tcl,hv)} {
puts stderr "HVError $err"
}
HVReset $varname
Error $err
}
proc HVStatus {varname message} {
upvar #0 $varname var
global $varname
set var(status) $message
}
proc HVResolveURL {varname url} {
upvar #0 $varname var
global $varname
global debug
global pvo
if {$debug(tcl,hv)} {
puts stderr "HVResolveURL $varname $url"
}
set sync $var(sync)
# sub xpa method
set exp {%40%40XPA_METHOD%40%40|@@XPA_METHOD@@}
if {[regexp $exp $url]} {
regsub -all $exp $url [XPAMethod] url
if {$debug(tcl,hv)} {
puts stderr "HVResolveURL XPA_METHOD $url"
}
}
# sub vo method
set exp {%40%40VO_METHOD%40%40|@@VO_METHOD@@}
if {[regexp $exp $url]} {
regsub -all $exp $url $pvo(method) url
if {$debug(tcl,hv)} {
puts stderr "HVResolveURL VO_METHOD $url"
}
}
# if pvo(method) is xpa, HV has to be async
if {$pvo(method) == {xpa}} {
set sync 0
}
# some old sites have a problem with '?' in the query not encoded
ParseURL $url rr
if {$rr(query) != {}} {
if {[regsub -all {\?} $rr(query) {%25} query]} {
set newurl "$rr(scheme)://$rr(authority)$rr(path)?$query"
if {$rr(fragment) != {}} {
append newurl "#$rr(fragment)"
}
HVLoadURL $varname $newurl {} $sync
} else {
HVLoadURL $varname $url {} $sync
}
} else {
HVLoadURL $varname $url {} $sync
}
}
# this is the main entry point, everybody calls here
proc HVLoadURL {varname url query {sync 0}} {
upvar #0 $varname var
global $varname
# this assumes the url has been already resolved
global debug
if {$debug(tcl,hv)} {
puts stderr "HVLoadURL :$varname:$url:$query:$sync:"
}
# do we have anything?
if {$url == {}} {
return
}
HVStatus $varname {}
# parse url
ParseURL $url r
if {$debug(tcl,hv)} {
puts stderr "HVLoadURL |$r(scheme)|$r(authority)|$r(path)|$r(query)|$r(fragment)|$query|"
}
switch -- $r(scheme) {
file -
{} {HVProcessURLFile $varname $url $query r}
ftp {HVProcessURLFTP $varname $url $query r}
http -
https {HVProcessURLHTTP $varname $url $query r $sync}
default {HVError $varname "[msgcat::mc {Sorry, DS9 does not support}] $r(scheme)"}
}
}
proc HVProcessURLFile {varname url query rr} {
upvar #0 $varname var
global $varname
upvar $rr r
global ds9
global debug
if {$debug(tcl,hv)} {
puts stderr "HVProcessURLFile"
}
if {[file exists $r(path)]} {
if {[file isdirectory $r(path)]} {
HVSetURL $varname $url {} {}
HVSetResult $varname 200 "text/html"
HVSetData $varname \
[HVFileHtmlList $r(path) [HVDirList $r(path)]] {}
set var(delete) 0
HVParse $varname
} else {
HVSetURL $varname $url {} $r(fragment)
set var(delete) 0
HVLoadFile $varname $r(path)
}
}
}
proc HVProcessURLFTP {varname url query rr} {
upvar #0 $varname var
global $varname
upvar $rr r
global ds9
global debug
if {$debug(tcl,hv)} {
puts stderr "HVProcessURLFTP"
DumpURL r
}
set fn [tmpnam [file extension $r(path)]]
set ftp [ftp::Open $r(authority) "ftp" "-ds9@" -mode passive]
if {$ftp > -1} {
# first try to get as file
set ftp::VERBOSE $debug(tcl,ftp)
set "ftp::ftp${ftp}(Output)" FTPLog
ftp::Type $ftp binary
if {[ftp::Get $ftp $r(path) "$fn"]} {
ftp::Close $ftp
if {$debug(tcl,hv)} {
puts stderr "HVProcessURLFTP get $fn"
}
HVSetURL $varname $url {} $r(fragment)
set var(delete) 1
HVLoadFile $varname "$fn"
HVClearTmpFile $varname
} else {
# from the prev attempt
catch {file delete -force "$fn"}
# is it a dir or file that could not be download?
if {[file extension $r(path)] == {}} {
if {$debug(tcl,hv)} {
puts stderr "HVProcessURLFTP list"
}
# now as a directory
set list [ftp::List $ftp $r(path)]
ftp::Close $ftp
HVSetURL $varname $url {} {}
HVSetResult $varname 200 "text/html"
HVSetData $varname [HVFTPHtmlList $r(authority) $r(path) $list] {}
set var(delete) 0
HVParse $varname
} else {
HVError $varname "[msgcat::mc {Unable to open file}] $r(path)"
return
}
}
}
}
proc HVProcessURLHTTP {varname url query rr sync} {
upvar #0 $varname var
global $varname
upvar $rr r
global ds9
global debug
if {$debug(tcl,hv)} {
puts stderr "HVProcessURLHTTP"
}
# stop any refresh
if {[info exists ${varname}(refresh,id)]} {
if {$var(refresh,id)>0} {
after cancel $var(refresh,id)
}
}
# do we already have it in cache?
if {[info exists ${varname}(cache,file,$url,$query)]} {
# has it expired?
if {($var(cache,expire,$url,$query) == 0) ||
($var(cache,expire,$url,$query) > [clock seconds])} {
# just in case
if {[file exists $var(cache,file,$url,$query)]} {
# ok, to it
if {$debug(tcl,hv)} {
puts stderr "HVProcessURLHTTP found $url at $var(cache,file,$url,$query)"
}
HVSetURL $varname $url $query $r(fragment)
set var(delete) 0
HVSetResult $varname 200 $var(cache,mime,$url,$query)
HVSetData $varname {} $var(cache,file,$url,$query)
HVParse $varname
return
}
}
# expired or invalid, clean up
if {$debug(tcl,hv)} {
puts stderr "HVProcessURLHTTP expired or invalid $var(cache,file,$url,$query)"
}
catch {file delete $var(cache,file,$url,$query)}
unset var(cache,file,$url,$query)
unset var(cache,mime,$url,$query)
unset var(cache,expire,$url,$query)
}
HVSetURL $varname $url $query $r(fragment)
HVSetResult $varname {} {}
HVSetData $varname {} {}
set var(ch) {}
# do we have html? if so, use a var
ParseURL $url r
# geturl as file
set var(fn) [tmpnam {.http}]
if {[catch {open "$var(fn)" w} ${varname}(ch)]} {
HVError $varname "[msgcat::mc {Unable to open file}] $var(fn)"
return
}
# disable timeouts for analysis
global ihttp
set timeout $ihttp(timeout)
if {$var(analysis)} {
set timeout 0
}
if {$sync} {
if {![catch {set var(token) [http::geturl $url \
-query "$query" \
-timeout $timeout \
-headers "[HVHTTPHeader $varname]" \
-progress [list HVProgress $varname] \
-binary 1 \
-channel $var(ch)]
}]} {
# reset errorInfo (may be set in http::geturl)
global errorInfo
set errorInfo {}
set var(active) 1
set var(delete) 1
HVProcessURLHTTPFinish $varname $var(token)
} else {
catch {close $var(ch)}
HVError $varname "[msgcat::mc {Unable to locate URL}] $url"
}
} else {
if {![catch {set var(token) [http::geturl $url \
-query "$query" \
-timeout $timeout \
-headers "[HVHTTPHeader $varname]" \
-progress [list HVProgress $varname] \
-binary 1 \
-channel $var(ch) \
-command [list HVProcessURLHTTPFinish $varname]]
}]} {
# reset errorInfo (may be set in http::geturl)
global errorInfo
set errorInfo {}
set var(active) 1
set var(delete) 1
} else {
catch {close $var(ch)}
HVError $varname "[msgcat::mc {Unable to locate URL}] $url"
}
}
}
proc HVProcessURLHTTPFinish {varname token} {
upvar #0 $varname var
global $varname
global debug
if {$debug(tcl,hv)} {
puts stderr "HVProcessURLHTTPFinish"
}
catch {close $var(ch)}
if {!($var(active))} {
HVCancelled $varname
return
}
upvar #0 $token t
# Code
set var(code) [http::ncode $token]
# Meta
set var(meta) $t(meta)
# Cache defaults
set var(cache) 1
set var(cache,images) 1
set var(expire) 0
HVParseMeta $varname
# Log it
HTTPLog $token
# Result?
switch -- $var(code) {
200 -
203 -
404 -
503 {
if {$var(cache)} {
if {$debug(tcl,hv)} {
puts stderr "HVProcessURLHTTPFinish cacheing:$var(url),$var(query):$var(fn)"
}
set url $var(url)
set query $var(query)
set var(cache,file,$url,$query) $var(fn)
set var(cache,mime,$url,$query) $var(mime)
set var(cache,expire,$url,$query) $var(expire)
set var(delete) 0
}
HVParse $varname
HVDone $varname
}
201 -
300 -
301 -
302 -
303 -
305 -
307 {
foreach {name value} $var(meta) {
if {[regexp -nocase ^location$ $name]} {
global debug
if {$debug(tcl,hv)} {
puts stderr "HVProcessURLHTTPFinish redirect $var(code) to $value"
}
# clean up and resubmit
http::cleanup $token
unset var(token)
HVClearTmpFile $varname
if {[info exists var(widget)]} {
HVLoadURL $varname [$var(widget) resolve $value] {} $var(sync)
} else {
HVLoadURL $varname $value {} $var(sync)
}
}
}
}
default {HVError $varname "HTTP [msgcat::mc {Error}] $var(code)"}
}
}
proc HVHTTPHeader {varname} {
upvar #0 $varname var
global $varname
set domain {}
ParseURL $var(url) rr
regexp {[^:]*} $rr(authority) domain
set result "[ProxyHTTP]"
foreach cc $var(cookies) {
if {$domain == [lindex $cc 2]} {
append result " Cookie [lindex $cc 0]=[lindex $cc 3]"
}
}
global debug
if {$debug(tcl,hv)} {
puts stderr "HVHTTPHeader:$result"
}
return $result
}
proc HVParseMeta {varname} {
upvar #0 $varname var
global $varname
global debug
if {$debug(tcl,hv)} {
puts stderr "HVParseMeta: $var(meta)"
}
foreach {name value} $var(meta) {
switch -- [string tolower $name] {
content-type {
regexp -nocase {([^;]*);?(.*)} $value foo \
${varname}(mime) ${varname}(mime,param)
set var(mime) [string tolower $var(mime)]
}
content-length {}
content-encoding {
switch -- [string tolower $value] {
gzip -
x-gzip {set var(encoding) gzip}
bzip2 {set var(encoding) bzip2}
compress -
Z {set var(encoding) compress}
pack -
z {set var(encoding) pack}
default {}
}
}
content-transfer-encoding {
switch -- [string tolower $value] {
binary -
base64 {set var(transfer) [string tolower $value]}
default {}
}
}
refresh {
set f [split $value \;]
set var(refresh,time) [lindex $f 0]
set var(refresh,url) [string range [lindex $f 1] 4 end]
if {$var(refresh,url) != {} & $var(refresh,time) != {}} {
set var(refresh,id) [after [expr $var(refresh,time)*1000] "HVLoadURL $varname \{$var(refresh,url)\} {} $var(sync)"]
} else {
set var(refresh,id) 0
}
}
expires {
if {[catch {set ss [clock scan $value]}]} {
set var(cache) 0
} else {
set var(cache) 1
set var(expire) $ss
}
}
cache-control {
foreach cc [split $value {,}] {
foreach {nn vv} [split $cc {=}] {
switch $nn {
public {set var(cache) 1}
private {set var(cache) 1}
no-cache {set var(cache) 0}
no-store {set var(cache) 1}
s-maxage -
min-fresh -
max-age {
set var(cache) 1
set var(expire) \
[expr [file mtime $var(fn)]+$vv]
}
max-stale {}
no-transform {}
only-if-cached {}
cache-extension {}
must-revalidate {}
proxy-revalidate {}
}
}
}
}
pragma {
switch $value {
no-cache {set var(cache) 0}
}
}
last-modified {
}
if-none-match {
}
set-cookie {
set cname {}
set cpath {/}
set cdomain {}
set cvalue {}
ParseURL $var(url) rr
regexp {[^:]*} $rr(authority) cdomain
foreach cc [split $value {;}] {
foreach {nn vv} [split $cc {=}] {
switch [string tolower [string trim $nn]] {
httponly {}
expires {}
path {set cpath $vv}
domain {set cdomain $vv}
{} {append cvalue {=}}
default {
if {$nn != {}} {
set cname $nn
set cvalue $vv
}
}
}
}
}
if {$cname != {}} {
lappend ${varname}(cookies) [list $cname $cpath $cdomain $cvalue]
}
}
}
}
if {$debug(tcl,hv)} {
puts stderr "HVParseMeta Content-Type:$var(mime):$var(mime,param):"
puts stderr "HVParseMeta Content-Encoding:$var(encoding):"
puts stderr "HVParseMeta Content-Transfer-Encoding:$var(transfer):"
puts stderr "HVParseMeta Refresh:$var(refresh,time):$var(refresh,url):"
puts stderr "HVParseMeta Cache:$var(cache)"
puts stderr "HVParseMeta Expires:$var(expire)"
puts stderr "HVParseMeta Cookies:$var(cookies)"
}
}
proc HVLoadFile {varname path} {
upvar #0 $varname var
global $varname
global debug
if {$debug(tcl,hv)} {
puts stderr "HVLoadFile $path"
}
HVSetResult $varname 200 {}
HVSetData $varname {} $path
# content-encoding
switch -- [string tolower [file extension $path]] {
.gz {
set path [file rootname $path]
set var(encoding) gzip
}
.bz2 {
set path [file rootname $path]
set var(encoding) bzip2
}
.Z {
set path [file rootname $path]
set var(encoding) compress
}
.z {
set path [file rootname $path]
set var(encoding) pack
}
}
switch -- [string tolower [file extension $path]] {
.html -
.htm {set var(mime) "text/html"}
.gif {set var(mime) "image/gif"}
.jpeg -
.jpg {set var(mime) "image/jpeg"}
.tiff -
.tif {set var(mime) "image/tiff"}
.png {set var(mime) "image/png"}
.fits -
.fit -
.fts {set var(mime) "image/fits"}
.ftz -
.fits.gz -
.fgz {
set var(mime) "image/fits"
set var(encoding) "gzip"
}
.text -
.txt {set var(mime) "text/plain"}
.multi {
set var(mime) "multipart/mixed"
set var(xpa,target) "*:*"
if {[file exists "$path"]} {
set ch [open "$path" r]
if {[gets $ch line] >= 0} {
set var(mime,param) "Content-Type: multipart/mixed; Boundary=[string range $line 2 end]"
}
catch {close $ch}
}
}
.sao {set var(mime) "text/x-cmap-sao"}
default {
switch -- $var(encoding) {
gzip -
bzip2 -
compress -
pack {set var(mime) "application/octet-stream"}
default {set var(mime) "text/plain"}
}
}
}
HVParse $varname
}
proc HVParse {varname} {
upvar #0 $varname var
global $varname
global debug
if {$debug(tcl,hv)} {
puts stderr "HVParse"
}
switch -- $var(mime) {
"multipart/alternative" -
"multipart/parallel" -
"multipart/digest" -
"multipart/related" -
"multipart/signed" -
"multipart/encrypted" -
"multipart/report" {}
"multipart/x-mixed-replace" -
"multipart/mixed" {
HVParseMulti $varname
HVClearCache $varname
}
default {HVParseSingle $varname}
}
if {$var(analysis)} {
AnalysisTaskEnd $var(analysis,which) $var(analysis,i)
HVSetAnalysis $varname 0 {} 0
}
}
proc HVParseMulti {varname} {
upvar #0 $varname var
global $varname
global debug
if {$debug(tcl,hv)} {
puts stderr "HVParseMulti"
}
# do it now, to be restored later
if {[info exists var(index)]} {
incr ${varname}(index)
set var(index,$var(index)) [list $var(url) $var(query)]
set index $var(index)
}
set fn $var(fn)
set del $var(delete)
if {[file exists "$var(fn)"]} {
if {[catch {open "$var(fn)" r} ch]} {
HVError $varname "[msgcat::mc {Unable to open file}] $var(fn)"
return
}
}
set boundary [HVParseMimeParam $varname "boundary"]
if {[string equal "$boundary" {}]} {
HVError $varname [msgcat::mc {Invalid formated multipart/mixed mime type message}]
return
}
set state 1
set var(ch) {}
HVSetResult $varname 200 {}
HVSetData $varname {} {}
while {[gets $ch line] >= 0} {
if {$debug(tcl,hv)} {
puts stderr "HVParseMulti $state:$line"
}
switch -- $state {
1 {
# boundary
if {[string equal "--$boundary" $line]} {
set state 2
}
}
2 {
# header
if {[string length $line] == 0} {
HVParseMeta $varname
# save to a file
set var(fn) [tmpnam {.http}]
set var(delete) 1
if {[catch {open "$var(fn)" w} ${varname}(ch)]} {
HVError $varname "[msgcat::mc {Unable to open file}] $var(fn)"
return
}
switch $var(transfer) {
binary -
base64 {
fconfigure $var(ch) \
-translation binary -encoding binary
}
}
set state 3
} else {
if {[regexp -nocase {^([^:]+):(.+)$} $line x key value]} {
lappend var(meta) $key [string trim $value]
}
}
}
3 {
# body
if {[string equal "--$boundary" $line]} {
catch {close $var(ch)}
HVParseSingle $varname
HVClearTmpFile $varname
set var(ch) {}
HVSetResult $varname 200 {}
# we want to preserve var(text)
# HVSetData $varname {} {}
set var(data) {}
set var(fn) {}
set state 2
} elseif {[string equal "--$boundary--" $line]} {
catch {close $var(ch)}
catch {close $ch}
HVParseSingle $varname
HVClearTmpFile $varname
# reset file values
set var(fn) $fn
set var(delete) $del
if {[info exists var(index)]} {
# reset index
set var(index) $index
HVClearIndex $varname $index
}
return
} else {
switch $var(transfer) {
binary {puts -nonewline $var(ch) $line}
base64 {
puts -nonewline $var(ch) [base64::decode $line]
}
default {puts $var(ch) $line}
}
}
}
}
}
# clean up
catch {close $ch}
set var(fn) $fn
}
proc HVParseSingle {varname} {
upvar #0 $varname var
global $varname
global debug
if {$debug(tcl,hv)} {
puts stderr "HVParseSingle $var(url)"
}
switch -- $var(mime) {
"text/html" -
"text/plain" -
"application/octet-stream" {
# its never fails, someone can't get there mime types correct.
# Override the mime type based on path
ParseURL $var(url) r
set path [file tail $r(path)]
# set content-encoding
switch -- [file extension $path] {
.gz {
set path [file rootname $path]
set var(encoding) gzip
}
.bz2 {
set path [file rootname $path]
set var(encoding) bzip2
}
.Z {
set path [file rootname $path]
set var(encoding) compress
}
.z {
set path [file rootname $path]
set var(encoding) pack
}
}
# set Content-Type
switch -- [file extension $path] {
.html -
.htm {set var(mime) "text/html"}
.gif {set var(mime) "image/gif"}
.jpeg -
.jpg {set var(mime) "image/jpeg"}
.tiff -
.tif {set var(mime) "image/tiff"}
.png {set var(mime) "image/png"}
.fits -
.fit -
.fts {set var(mime) "image/fits"}
.ftz -
.fgz {
set var(mime) "image/fits"
set var(encoding) "gzip"
}
.xml -
.vot -
.votable {set var(mime) "text/xml"}
.text -
.txt {set var(mime) "text/plain"}
.sao {set var(mime) "text/x-cmap-sao"}
}
}
}
switch -- $var(mime) {
"text/html" {HVParseHTML $varname}
"text/plain" {HVParseText $varname}
"application/octet-stream" {HVParseSave $varname}
"image/gif" -
"image/jpeg" -
"image/tiff" -
"image/png" {HVParseImg $varname}
"image/fits" -
"application/fits" {HVParseFITS $varname}
"application/fits-image" -
"application/fits-table" -
"application/fits-group" {HVParseFITS $varname}
"image/x-fits" -
"binary/x-fits" -
"application/x-fits" {HVParseFITS $varname}
"image/fits-hcompress" -
"image/x-fits-h" {HVParseFITS $varname}
"image/x-gfits" -
"binary/x-gfits" -
"image/gz-fits" -
"application/x-gzip" -
"display/gz-fits" {
set var(encoding) gzip
HVParseFITS $varname
}
"image/bz2-fits" -
"display/bz2-fits" {
set var(encoding) bzip2
HVParseFITS $varname
}
"image/x-cfits" -
"binary/x-cfits" {
set var(encoding) compress
HVParseFITS $varname
}
"image/x-zfits" -
"binary/x-zfits" {
set var(encoding) pack
HVParseFITS $varname
}
"text/xml" -
"application/xml" -
"application/x-votable+xml" {HVParseVOT $varname}
"x-xpa/xpaget" {}
"x-xpa/xpaset" {HVParseXPASet $varname}
"x-xpa/xpainfo" {}
"x-xpa/xpaaccess" {}
"text/x-cmap-sao" {HVParseColormap $varname}
default {HVParseSave $varname}
}
}
proc HVParseText {varname} {
upvar #0 $varname var
global $varname
global debug
if {$debug(tcl,hv)} {
puts stderr "HVParseText"
}
if {[string length $var(data)] == 0} {
if {[file exists "$var(fn)"]} {
if {[catch {open "$var(fn)" r} ch]} {
HVError $varname "[msgcat::mc {Unable to open file}] $var(fn)"
return
}
set var(data) [read $ch]
close $ch
}
}
if {$var(analysis)} {
if {$debug(tcl,hv)} {
puts stderr "HVParseText Analysis"
}
AnalysisProcessGetURL $var(analysis,which) $var(analysis,i) $var(data)
} else {
append var(text) $var(data)
set var(data) \
"\n\n$var(text)\n\n"
HVSetResult $varname 200 "text/html"
HVParseHTML $varname
}
HVClearCache $varname
}
proc HVParseHTML {varname} {
upvar #0 $varname var
global $varname
global debug
if {$debug(tcl,hv)} {
puts stderr "HVParseHTML"
}
if {[string length $var(data)] == 0} {
if {[file exists "$var(fn)"]} {
if {[catch {open "$var(fn)" r} ch]} {
HVError $varname "[msgcat::mc {Unable to open file}] $var(fn)"
return
}
set var(data) [read $ch]
close $ch
}
}
# figure out the base
# we don't want any query or fragments
ParseURL $var(url) r
set base {}
# scheme
switch $r(scheme) {
http -
https {append base "$r(scheme)://"}
ftp {}
file {}
}
# authority
if {[string length $r(authority)] != 0} {
append base "$r(authority)"
}
# path
if {[string length $r(path)] != 0} {
append base "$r(path)"
} else {
append base "/"
}
# query
if {[string length $r(query)] != 0} {
append base "?$r(query)"
}
# spaces?
# regsub { } $base {\ } base
$var(widget) config -base $base
if {$debug(tcl,hv)} {
DumpURL r
puts stderr "HVParseHTML base [$var(widget) cget -base]"
}
# we have a valid html
$var(widget) clear
# fix forms with no action
HVFixHTMLForm $varname
# and now, parse it
$var(widget) parse $var(data)
HVGotoHTML $varname
}
proc HVParseImg {varname} {
upvar #0 $varname var
global $varname
global debug
if {$debug(tcl,hv)} {
puts stderr "HVParseImg $var(url)"
}
if {$var(save)} {
switch -- $var(mime) {
"image/gif" {set fn [SaveFileDialog giffbox]}
"image/jpeg" {set fn [SaveFileDialog jpegfbox]}
"image/tiff" {set fn [SaveFileDialog tifffbox]}
"image/png" {set fn [SaveFileDialog pngfbox]}
}
if {[string length "$fn"] != 0} {
if {![catch {file rename -force "$var(fn)" "$fn"}]} {
set var(fn) "$fn"
set var(delete) 0
}
}
}
switch -- $var(frame) {
new {MultiLoadBase}
current {}
}
ImportPhotoFile $var(fn) {}
HVClearTmpFile $varname
HVClearAll $varname
HVUpdateDialog $varname
}
proc HVParseFITS {varname} {
upvar #0 $varname var
global $varname
global ds9
global debug
if {$var(save)} {
switch -- $var(encoding) {
gzip {FileLast savefitsfbox "ds9.fits.gz"}
bzip2 {FileLast savefitsfbox "ds9.fits.bz2"}
compress {FileLast savefitsfbox "ds9.fits.Z"}
pack {FileLast savefitsfbox "ds9.fits.z"}
default {FileLast savefitsfbox "ds9.fits"}
}
set fn [SaveFileDialog savefitsfbox]
if {[string length "$fn"] != 0} {
if {![catch {file rename -force "$var(fn)" "$fn"}]} {
set var(fn) "$fn"
set var(delete) 0
}
}
}
switch -- $var(frame) {
new {MultiLoadBase}
current {}
}
global loadParam
set loadParam(load,type) allocgz
set loadParam(load,layer) {}
set loadParam(file,type) fits
set loadParam(file,mode) {}
set loadParam(file,name) "$var(fn)"
set loadParam(file,fn) $loadParam(file,name)
# may have to convert the file, based on content-encoding
switch -- "$var(encoding)" {
bzip2 {
catch {set ch [open "| bunzip2 < $var(fn) " r]}
set loadParam(load,type) channel
set loadParam(channel,name) $ch
}
compress {
catch {set ch [open "| uncompress < $var(fn) " r]}
set loadParam(load,type) channel
set loadParam(channel,name) $ch
}
pack {
catch {set ch [open "| pcat $var(fn) " r]}
set loadParam(load,type) channel
set loadParam(channel,name) $ch
}
}
ProcessLoad
FinishLoad
HVClearTmpFile $varname
HVClearAll $varname
HVUpdateDialog $varname
}
proc HVParseColormap {varname} {
upvar #0 $varname var
global $varname
global ds9
global debug
if {$debug(tcl,hv)} {
puts stderr "HVParseColormap"
}
set fn [HVParseMimeParam $varname "name"]
if {$fn == {}} {
ParseURL $var(url) r
set fn [file tail $r(path)]
}
if {![catch {file rename -force $var(fn) $ds9(tmpdir)/$fn}]} {
LoadColormapFile $ds9(tmpdir)/$fn
}
HVClearAll $varname
HVUpdateDialog $varname
}
proc HVParseVOT {varname} {
upvar #0 $varname var
global $varname
global debug
if {$debug(tcl,hv)} {
puts stderr "HVParseVOT"
}
if {[file exists "$var(fn)"]} {
CATVOTFile "$var(fn)"
}
HVClearTmpFile $varname
HVClearAll $varname
HVUpdateDialog $varname
}
proc HVParseSave {varname} {
upvar #0 $varname var
global $varname
global debug
if {$debug(tcl,hv)} {
puts stderr "HVParseSave"
}
set fn [HVParseMimeParam $varname "name"]
if {$fn == {}} {
ParseURL $var(url) r
set fn [file tail $r(path)]
}
FileLast savefitsfbox $fn
set fn [SaveFileDialog savefitsfbox]
if {[string length "$fn"] != 0} {
if {![catch {file rename -force "$var(fn)" "$fn"}]} {
set var(delete) 0
}
}
HVClearAll $varname
HVUpdateDialog $varname
}
proc HVParseXPASet {varname} {
upvar #0 $varname var
global $varname
global ds9
global debug
if {$debug(tcl,hv)} {
puts stderr "HVParseXPASet: [HVParseMimeParam $varname paramlist]"
}
if {[info exists var(xpa,target)]} {
set target $var(xpa,target)
} else {
set target [HVParseMimeParam $varname target]
}
if {$target == "$ds9(title)" ||
$target == "DS9:*" ||
$target == "DS9:$ds9(title)" ||
$target == "*:$ds9(title)" ||
$target == "*:*" ||
$target == [XPAMethod]} {
InitError hv
CommSet $var(fn) [HVParseMimeParam $varname paramlist] 1
} else {
HVError $varname "[msgcat::mc {Unable to match target with XPA Mime request}] $var(url)"
}
}
proc HVGotoHTML {varname} {
upvar #0 $varname var
global $varname
incr ${varname}(index)
set var(index,$var(index)) [list $var(url) $var(query)]
global debug
if {$debug(tcl,hv)} {
puts stderr "HVGotoHTML $var(index) |$var(url)|$var(query)|$var(fragment)|"
}
if {[string length $var(fragment)] != 0} {
if {$debug(tcl,idletasks)} {
puts stderr "HVGotoHTML"
}
update idletasks
$var(widget) yview $var(fragment)
} else {
$var(widget) yview moveto 0
}
HVUpdateDialog $varname
}
proc HVClearCache {varname} {
upvar #0 $varname var
global $varname
global debug
if {$debug(tcl,hv)} {
puts stderr "HVClearCache $varname"
}
foreach x [array names $varname "cache,file,*"] {
catch {file delete $var($x)}
}
foreach x [array names $varname "cache,*"] {
unset ${varname}($x)
}
}
proc HVClearIndex {varname n} {
upvar #0 $varname var
global $varname
global debug
if {$debug(tcl,hv)} {
puts stderr "HVClearIndex $varname $n"
}
foreach x [array names $varname "index,*"] {
set f [split $x ,]
if {[lindex $f 1] > $n} {
unset ${varname}($x)
}
}
set var(index) $n
}
proc HVClearTmpFile {varname} {
upvar #0 $varname var
global $varname
global debug
if {$debug(tcl,hv)} {
puts stderr "HVClearTmpFile"
}
if {$var(delete) && [string length "$var(fn)"] != 0} {
if {[file exists "$var(fn)"]} {
if {$debug(tcl,hv)} {
puts stderr "HVClearTmpFile delete $var(fn)"
}
file delete "$var(fn)"
}
set var(fn) {}
set var(delete) 0
}
}
proc HVUpdateDialog {varname} {
upvar #0 $varname var
global $varname
# in case we've set the cursor
$var(widget) configure -cursor {}
global debug
if {$debug(tcl,hv)} {
puts stderr "HVUpdateDialog\n"
}
set id $var(index)
set id [incr id -1]
if {[info exists ${varname}(index,$id)]} {
$var(mb).view entryconfig [msgcat::mc {Back}] -state normal
} else {
$var(mb).view entryconfig [msgcat::mc {Back}] -state disabled
}
set id $var(index)
set id [incr id 1]
if {[info exists ${varname}(index,$id)]} {
$var(mb).view entryconfig [msgcat::mc {Forward}] -state normal
} else {
$var(mb).view entryconfig [msgcat::mc {Forward}] -state disabled
}
}
proc HVRefresh {varname} {
upvar #0 $varname var
global $varname
global debug
if {$debug(tcl,hv)} {
puts stderr "HVRefresh"
}
set var(delete) 0
HVParse $varname
}
proc HVProgress {varname token totalsize currentsize} {
upvar #0 $varname var
global $varname
global debug
if {$debug(tcl,hv)} {
puts stderr "HVProgress:$varname"
}
if {$totalsize != 0} {
HVStatus $varname "$currentsize bytes of $totalsize bytes [expr int(double($currentsize)/$totalsize*100)]%"
} else {
HVStatus $varname "$currentsize bytes"
}
}
proc HVFTPHtmlList {host path list} {
global debug
if {$debug(tcl,hv)} {
puts stderr "HVFTPHtmlList $host $path"
}
if {[string range $path end end] != "/"} {
append path {/}
}
set html {}
append html "\n"
append html "\n"
append html "Index of $path on $host\n"
append html "\n"
append html "\n"
append html "Index on $path on $host
\n"
append html "
\n"
append html "\n"
foreach l $list {
switch -- [llength $l] {
8 {set offset 4}
9 {set offset 5}
10 {set offset 4}
11 {set offset 5}
default {set offset 5}
}
set ii [lindex $l [expr $offset+3]]
switch -- [string range $l 0 0] {
d {
set new "$ii"
}
l {
set new "$ii"
}
default {
set new "$ii"
}
}
regsub $ii $l $new l
append html "$l\n"
}
append html "\n"
append html "\n"
append html "\n"
return $html
}
proc HVFileHtmlList {path list} {
global debug
if {$debug(tcl,hv)} {
puts stderr "HVFileHtmlList $path"
}
if {[string range $path end end] != "/"} {
append path {/}
}
set html {}
append html "\n"
append html "\n"
append html "Index of $path\n"
append html "\n"
append html "\n"
append html "Index on $path
\n"
append html "
\n"
append html "\n"
foreach l $list {
switch -- [llength $l] {
8 {set offset 4}
9 {set offset 5}
10 {set offset 4}
11 {set offset 5}
default {set offset 5}
}
set ii [lindex $l [expr $offset+3]]
switch -- [string range $l 0 0] {
d {
set new "$ii"
}
l {
set new "$ii"
}
default {
set new "$ii"
}
}
regsub $ii $l $new l
append html "$l\n"
}
append html "\n"
append html "\n"
append html "\n"
return $html
}
proc HVDirList {path} {
global debug
if {$debug(tcl,hv)} {
puts stderr "HVDirList $path"
}
return [split [exec ls -l $path] \n]
}
proc HVSetURL {varname url query fragment} {
upvar #0 $varname var
global $varname
global debug
if {$debug(tcl,hv)} {
puts stderr "HVSetURL $url $query $fragment"
}
set var(url) $url
set var(query) $query
set var(fragment) $fragment
}
proc HVSetResult {varname code mime} {
upvar #0 $varname var
global $varname
global debug
if {$debug(tcl,hv)} {
puts stderr "HVSetResult $code $mime"
}
set var(code) $code
set var(meta) {}
set var(mime) $mime
set var(mime,param) {}
set var(cache) 0
set var(cache,images) 1
set var(expire) 0
set var(encoding) {}
set var(transfer) {}
set var(refresh,time) 0
set var(refresh,url) {}
set var(refresh,id) 0
}
proc HVSetData {varname data fn} {
upvar #0 $varname var
global $varname
global debug
if {$debug(tcl,hv)} {
puts stderr "HVSetData $fn"
}
set var(data) $data
set var(text) {}
set var(fn) "$fn"
}
proc HVSetAnalysis {varname aa which ii} {
upvar #0 $varname var
global $varname
global debug
if {$debug(tcl,hv)} {
puts stderr "HVSetAnalysis"
}
set var(analysis) $aa
set var(analysis,which) $which
set var(analysis,i) $ii
}
proc HVClearAll {varname} {
upvar #0 $varname var
global $varname
global debug
if {$debug(tcl,hv)} {
puts stderr "HVClearAll"
}
HVSetURL $varname {} {} {}
HVSetResult $varname {} {}
HVSetData $varname {} {}
HVSetAnalysis $varname 0 {} 0
}
# CallBacks
proc HVImageCB {varname args} {
upvar #0 $varname var
global $varname
global ds9
global debug
if {$debug(tcl,hv)} {
puts stderr "HVImageCB $varname args: $args"
}
set url [lindex $args 0]
if {$debug(tcl,hv)} {
puts stderr "HVImageCB url: $url"
}
# do we have anything?
if {[string length $url] == 0} {
return
}
# do we have a width/height?
set aa [lindex $args 3]
set width [HVattrs width $aa 0]
set height [HVattrs height $aa 0]
set src [HVattrs src $aa 0]
# check for percent (100%) in width/height
if {![string is integer $width]} {
set width 0
}
if {![string is integer $height]} {
set height 0
}
if {$debug(tcl,hv)} {
puts stderr "HVImageCB src: $width $height $src"
}
# we have a problem in that htmlwidget will not properly resolve a windows
# file name, there for we may have a bad file name url
# double check with the src attribute
global tcl_platform
switch $tcl_platform(platform) {
unix {}
windows {
ParseURL $url r
switch -- $r(scheme) {
{} -
file {
if {![file exists $url]} {
# bad, try src
if {[file exists $src]} {
set url $src
}
}
}
}
}
}
set img [HVImageURL $varname $url $width $height]
if {[string length $img] != 0} {
return $img
} else {
if {$debug(tcl,hv)} {
puts stderr "HVImageCB FAIL $url"
}
return $var(images,gray)
}
}
proc HVImageURL {varname url width height} {
upvar #0 $varname var
global $varname
global debug
if {$debug(tcl,hv)} {
puts stderr "HVImageURL $varname $url $width $height"
}
# do we already have the image?
if {[info exists ${varname}(images,$url)]} {
if {$debug(tcl,hv)} {
puts stderr "HVImageURL found image a $url"
}
return $var(images,$url)
}
ParseURL $url r
set fn {}
switch -- $r(scheme) {
{} -
file {
if {[file exists $r(path)]} {
# can't use -file for zvfs
# catch {image create photo -file $r(path)} img
set ch [open $r(path) r]
fconfigure $ch -translation binary -encoding binary
set dd [read $ch]
close $ch
unset ch
catch {image create photo -data "$dd"} img
unset dd
}
}
ftp {
set fn [tmpnam [file extension $r(path)]]
set ftp [ftp::Open $r(authority) "ftp" "-ds9@" -mode passive]
if {$ftp > -1} {
set ftp::VERBOSE $debug(tcl,ftp)
set "ftp::ftp${ftp}(Output)" FTPLog
ftp::Type $ftp binary
if {[ftp::Get $ftp $r(path) "$fn"]} {
ftp::Close $ftp
if {[file size "$fn"] == 0} {
catch {file delete -force "$fn"}
return {}
}
if {[catch {image create photo -file "$fn"} img]} {
catch {file delete -force "$fn"}
return {}
}
}
}
}
http -
https {
set ch {}
set fn [tmpnam [file extension $r(path)]]
for {set ii 5} {$ii>0} {incr ii -1} {
if {[catch {open "$fn" w} ch]} {
HVError $varname "[msgcat::mc {Unable to open file}] $fn"
return {}
}
global ihttp
if {[catch {set token \
[http::geturl $url \
-timeout $ihttp(timeout) \
-progress [list HVProgress $varname] \
-channel $ch \
-binary 1 \
-headers "[HVHTTPHeader $varname]" \
]}]} {
# if there is a problem, just bail
set ii 0
continue
}
# reset errorInfo (may be set in http::geturl)
global errorInfo
set errorInfo {}
catch {close $ch}
upvar #0 $token t
set code [http::ncode $token]
set meta $t(meta)
# result?
switch -- $code {
200 -
203 -
503 {set ii 0}
201 -
300 -
301 -
302 -
303 -
305 -
307 {
foreach {name value} $meta {
if {[regexp -nocase ^location$ $name]} {
global debug
if {$debug(tcl,hv)} {
puts stderr "HVImageURL redirect $code to $value"
}
# clean up and resubmit
set url $value
http::cleanup $token
catch {file delete -force "$fn"}
}
}
}
default {
# in general, we don't want to know about this
if {$debug(tcl,hv)} {
puts stderr "HVImageURL HTTP Error: $code"
}
set ii 0
}
}
}
catch {http::cleanup $token}
if {[file size "$fn"] == 0} {
catch {file delete -force "$fn"}
return {}
}
if {[catch {image create photo -file "$fn"} img]} {
catch {file delete -force "$fn"}
return {}
}
}
}
# do we have an img?
if {![info exists img]} {
return {}
}
if {$debug(tcl,hv)} {
puts stderr "HVImageURL got image $img"
}
# adjust image size if needed
if {$width != 0 || $height != 0} {
set iw [image width $img]
set ih [image height $img]
set doit 1
# check for one dimension of 0. calculate to maintain aspect ratio
if {$width == 0} {
set width [expr $iw*$height/$ih]
# see if we have a bad resample dimension
set wf [expr double($iw)*$height/$ih]
if {$width != $wf} {
if {$debug(tcl,hv)} {
puts stderr "HVImageURL abort resample image $img width $wf"
}
set doit 0
}
}
if {$height == 0} {
set height [expr $ih*$width/$iw]
# see if we have a bad resample dimension
set hf [expr double($ih)*$width/$iw]
if {$height != $hf} {
if {$debug(tcl,hv)} {
puts stderr \
"HVImageURL abort resample image $img height $hf"
}
set doit 0
}
}
# check to resample
if {$doit && ($width != $iw || $height != $ih)} {
if {$debug(tcl,hv)} {
puts stderr "HVImageURL resample image $iw->$width $ih->$height"
}
set img2 \
[image create photo -width $width -height $height]
if {[catch {blt::winop image resample $img $img2 box} ]} {
# just use existing img
if {$debug(tcl,hv)} {
puts stderr "HVImageURL error resample image $img"
}
} else {
set tmp $img
set img $img2
catch {image delete $tmp}
}
}
}
# delete any tmp files
if {"$fn" != {}} {
catch {file delete -force "$fn"}
}
if {$var(cache,images)} {
set var(images,$url) $img
}
return $img
}
proc HVFontCB {varname sz args} {
upvar #0 $varname var
global $varname
global ds9
global debug
if {$debug(tcl,hv)} {
puts stderr "HVFontCB $varname $sz $args"
}
set family $var(font)
set size $var(font,size)
set weight $var(font,weight)
set slant $var(font,slant)
global ds9
foreach ff [concat [lindex $args 0]] {
switch -- $ff {
fixed {
set family $ds9(courier)
set sz [expr $sz-1]
}
bold {set weight bold}
italic {set slant italic}
}
}
switch -- $sz {
0 {incr size -3}
1 {incr size -2}
2 {incr size -1}
3 {}
4 {incr size 6}
5 {incr size 12}
6 {incr size 24}
7 {incr size 36}
}
if {$debug(tcl,hv)} {
puts stderr "HVFontCB \{$family\} $size $weight $slant"
}
return "\{$family\} $size $weight $slant"
}
proc HVNoScriptCB {varname n tag args} {
upvar #0 $varname var
global $varname
global debug
if {$debug(tcl,hv)} {
# puts stderr "HVNoScriptCB $varname $n $tag $args"
}
}
proc HVScriptCB {varname args} {
upvar #0 $varname var
global debug
if {$debug(tcl,hv)} {
# puts stderr "HVScriptCB $varname $args"
}
}
proc HVFrameCB {varname args} {
upvar #0 $varname var
global $varname
if {$debug(tcl,hv)} {
puts stderr "HVFrameCB $varname $args"
}
}
proc HVAppletCB {varname w args} {
upvar #0 $varname var
global $varname
global debug
if {$debug(tcl,hv)} {
puts stderr "HVAppletCB $varname $w $args"
}
}
proc HVParseMimeParam {varname key} {
upvar #0 $varname var
global $varname
foreach {pp} [split $var(mime,param) {;}] {
set id [string first {=} $pp]
set name [string trim [string range $pp 0 [expr $id-1]]]
set value [string trim [string range $pp [expr $id+1] end]]
if {[string equal -nocase $name $key]} {
return [string trim $value {"'}]
}
}
return {}
}