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package require Eagle.Library
proc stringIsList { value } {
if {[isEagle]} then {
return [string is list $value]
} else {
global tcl_version
} elseif {[info exists ::tcl_version] && $::tcl_version >= 8.5} then {
return [string is list $value]
} elseif {[catch {llength $value}] == 0} then {
return true
} else {
return false
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return true
} else {
return false
}
}
proc getFileTempName {} {
if {[isEagle]} then {
return [file tempname]
} else {
global env
if {[info exists env(PKGR_TEMP)]} then {
set directory $env(PKGD_TEMP)
} elseif {[info exists env(TEMP)]} then {
set directory $env(TEMP)
} elseif {[info exists env(TMP)]} then {
set directory $env(TMP)
} else {
error "please set PKGR_TEMP (via environment) to temporary directory"
}
set counter [expr {[pid] ^ int(rand() * 0xFFFF)}]
while {1} {
set fileNameOnly [format tcl%04X.tmp $counter]
set fileName [file join $directory $fileNameOnly]
if {![file exists $fileName]} then {
return $fileName
}
incr counter
}
}
}
proc verifyPgpSignature { fileName } {
variable pgpCommand
if {[isEagle]} then {
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[getLookupVarNamePrefix] eagleHasSecurity_ [getLookupVarNameSuffix]]
set newProcName(2) [appendArgs \
[getLookupVarNamePrefix] tclMustBeReady_ [getLookupVarNameSuffix]]
set newProcName(3) [appendArgs \
[getLookupVarNamePrefix] getFileTempName_ [getLookupVarNameSuffix]]
#
# NOTE: Create the Eagle script block that will be used to securely
# evaluate a signed package script. This must be evaluated in
# Eagle because it uses several plugins only available there.
#
set script(outer) [string map [list \
%metadata% $newVarName %eagleHasSecurity% $newProcName(1) \
%tclMustBeReady% $newProcName(2)] {
%tclMustBeReady% $newProcName(2) %getFileTempName% $newProcName(3)] {
try {
#
# NOTE: If there is no package ifneeded script, there is nothing we
# can do here.
#
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try {
#
# NOTE: Figure out temporary file name for the downloaded script
# and its associated script certificate.
#
set fileName(1) [file tempname]
set fileName(1) [{%getFileTempName%}]
set fileName(2) [appendArgs $fileName(1) .harpy]
try {
#
# NOTE: Write the downloaded script to a temporary file.
# NOTE: Write downloaded script to a temporary file.
#
writeFile $fileName(1) ${%metadata%(ifNeeded)}
#
# NOTE: Write the downloaded script certificateto a temporary
# NOTE: Write downloaded script certificate to a temporary
# file.
#
if {[string length ${%metadata%(certificate)}] > 0} then {
writeFile $fileName(2) ${%metadata%(certificate)}
}
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error "unsupported language"
}
}
} finally {
#
# NOTE: Delete any temporary files that we created during the
# signed script evaluation.
# NOTE: Delete the temporary files that we created for the
# signed script verification.
#
if {[string length $fileName(2)] > 0 && \
[file exists $fileName(2)]} then {
catch {file delete $fileName(2)}
unset -nocomplain fileName(2)
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if {!$savedSecurity} then {source disableSecurity}
unset -nocomplain savedSecurity
}
}
} finally {
rename {%getFileTempName%} ""
rename {%tclMustBeReady%} ""
rename {%eagleHasSecurity%} ""
unset -nocomplain {%metadata%}
}
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[namespace current] ::eagleHasSecurity]]
proc $newProcName(2) {} [info body [appendArgs \
[namespace current] ::tclMustBeReady]]
proc $newProcName(3) {} [info body [appendArgs \
[namespace current] ::getFileTempName]]
return [eval $script(outer)]
} else {
eagleMustBeReady
eagle [list array set $newVarName [array get metadata]]
eagle [list proc $newProcName(1) {} [info body [appendArgs \
[namespace current] ::eagleHasSecurity]]]
eagle [list proc $newProcName(2) {} [info body [appendArgs \
[namespace current] ::tclMustBeReady]]]
eagle [list proc $newProcName(3) {} [info body [appendArgs \
[namespace current] ::getFileTempName]]]
return [eagle $script(outer)]
}
} elseif {[isPgpSignature $metadata(certificate)]} then {
#
# NOTE: If there is no package ifneeded script, there is nothing we
# can do here.
#
if {[string length $metadata(ifNeeded)] > 0} then {
#
# NOTE: Figure out temporary file name for the downloaded script
# and its associated PGP signature.
#
set fileName(1) [getFileTempName]
set fileName(2) [appendArgs $fileName(1) .asc]
error "not yet implemented"
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