return "http://$hostname/appfs/$method/$hash"
	}

	# User-replaceable function get the home directory of the current user
	proc get_homedir {} {
		return [::appfsd::get_homedir]
	}

	# User-replacable function to update permissions
	proc change_perms {file perms} {
		if {[info exists ::appfs::user::add_perms($file)]} {
			append perms $::appfs::user::add_perms($file)
		}

		return $perms
	}
}

namespace eval ::appfs {
	variable cachedir "/tmp/appfs-cache"
	variable ttl 3600
	variable nttl 60
	variable trusted_cas [list]

							"directory" {
								set retval(type) "directory"
								set retval(childcount) [llength [getchildren $path]]
							}
							"file" {
								set retval(type) "file"
								set retval(size) $localpathinfo(size)

								# Once the user writes to a file, all its other
								# attributes (such as suid) are lost

								_as_user {
									if {[file executable $localpath]} {
										set retval(perms) "x-"
									} else {
										set retval(perms) "-"
									}
								}

						set file [lindex $work end]

						if {$directory == "" && $file == ""} {
							array set retval [list type directory]
						}

						::appfs::db eval {SELECT type, time, source, size, perms FROM files WHERE package_sha1 = $pathinfo(package_sha1) AND file_directory = $directory AND file_name = $file;} retval {}

						# Allow an administrator to supply additional permissions to remote files
						if {[info exists retval(perms)]} {
							set retval(perms) [::appfs::user::change_perms $path $retval(perms)]
						}

						if {[info exists retval(type)] && $retval(type) == "directory"} {
							set retval(childcount) [llength [getchildren $path]]
						}

						unset -nocomplain retval(*)
					}