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|
# rivet_ncgi.tcl -- Rivet ncgi compatibility layer
# $Id: rivet_ncgi.tcl 265411 2004-08-23 21:52:35Z davidw $
package provide ncgi 1.0
package require fileutil
package require http
namespace eval ncgi {
}
# ::ncgi::parse --
#
# Mostly a no-op for Rivet, although it loads up the ::env
# variable.
#
# Arguments:
# None.
#
# Side Effects:
# Modifies ::env environment to include stuff from the request.
#
# Results:
# None.
proc ::ncgi::parse {} {
load_env ::env
}
# ::ncgi::value --
#
# Returns the value of a 'cgi' variable.
#
# Arguments:
# key - variable name.
# default - default value should it not exist.
#
# Side Effects:
# None.
#
# Results:
# The value of the specified variable, or {} if it is empty.
proc ::ncgi::value {key {default {}}} {
if { [var exists $key] } {
return [var get $key]
} else {
return $default
}
}
# ::ncgi::encode --
#
# HTML encode a string.
#
# Arguments:
# string - text to encode.
#
# Side Effects:
# None.
#
# Results:
# Encoded string.
proc ::ncgi::encode {string} {
return [http::formatQuery $string]
}
# ::ncgi::importFile --
#
# See the ncgi documentation.
proc ::ncgi::importFile {cmd var {filename {}}} {
switch -exact -- $cmd {
-server {
if { $filename == {} } {
set filename [::fileutil::tempfile ncgi]
}
upload save $var $filename
return $filename
}
-client {
return [upload filename $var]
}
-type {
return [upload type]
}
-data {
return [upload data $var]
}
default {
error "Unknown subcommand to ncgi::import_file: $cmd"
}
}
}
# ::ncgi::empty --
#
# Returns 1 if the CGI variable in question is not set, 0 if it
# is set.
#
# Arguments:
# name - variable name.
#
# Side Effects:
# None.
#
# Results:
# 1 or 0.
proc ::ncgi::empty {name} {
expr {! [var exists $name]}
}
# ::ncgi::::redirect --
#
# Generate a redirect.
#
# Arguments:
# uri - new URL to go to.
#
# Side Effects:
# Must be done before puts statements.
#
# Results:
# None.
proc ::ncgi::::redirect {uri} {
headers redirect $uri
}
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