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# TODO: this is only viable behind a reverse proxy.
namespace eval ::httpd {
variable log [logger::init httpd]
variable routes
# routes: {path proc}
proc ::httpd::router {name iroutes} {
variable routes
variable log
if [info exists ::httpd::routes($name)] {
return -code error "Can't create duplicate router!"
}
if {[llength $iroutes] % 2 != 0} {
return -code error "Incorrect number of routes!"
}
set routes($name) $iroutes
}
proc ::httpd::listen {parent port} {
socket -server [list ::httpd::accept $parent] $port
}
proc ::httpd::accept {parent sock addr port} {
variable routes
fconfigure $sock -translation crlf
gets $sock line
lassign $line method path version
if {$method != "GET"} {
puts $sock "HTTP/1.0 405 Method Not Allowed"
puts $sock ""
flush $sock
close $sock
return
}
set query {}
if {[string first ? $path] != -1} {
lassign [split $path ?] path params
foreach param [split $params &] {
set value [join [lassign [split $param =] key] =]
dict lappend query $key $value
}
}
set headers {}
while {[gets $sock header] != -1} {
if {$header == ""} break
lassign [split header :] key value
set key [string tolower [string trim $key]]
set value [string trim $value]
dict lappend $key $value
}
foreach {pathpat proc} [set routes($parent)] {
if [string match $pathpat $path] {
if [catch {{*}$proc $parent $sock $path $query $headers} result] {
puts $sock "HTTP/1.0 500 Internal Server Error"
puts $sock "Content-Type: text/plain"
puts $sock ""
puts $sock "Route Handler: $result"
puts $sock ""
flush $sock
close $sock
return
}
return
}
}
puts $sock "HTTP/1.0 404 Not Found"
puts $sock "Content-Type: text/plain"
puts $sock ""
puts $sock "No route handler available."
puts $sock ""
flush $sock
close $sock
}
}