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set filekey [_hash_sep $filekey]
}
set file [file join $::appfs::cachedir $filekey]
file mkdir [file dirname $file]
if {![file exists $file]} {
set tmpfile "${file}.new"
if {[file exists $file]} {
return $file
}
set tmpfile "${file}.[expr {rand()}]"
set fd [open $tmpfile "w"]
fconfigure $fd -translation binary
catch {
set token [::http::geturl $url -channel $fd -binary true]
}
if {[info exists token]} {
set ncode [::http::ncode $token]
::http::reset $token
} else {
set ncode "900"
}
close $fd
if {$keyIsHash} {
set hash [string tolower [sha1::sha1 -hex -file $tmpfile]]
} else {
set hash $key
}
if {$ncode == "200" && $hash == $key} {
file rename -force -- $tmpfile $file
} else {
file delete -force -- $tmpfile
}
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