# 
# Copyright for the Uniform Repository Service (c) 1995 - 2025
# by Gerald Banon. All rights reserved.
# Version 2.1
# resolve.tcl
#
# Created by GJFB in 2025-09-06 from an old version of from.tcl
#
# If the document is in the current local collection, it is returned,
# otherwise it is searched within the scope of the whole URLib
# collection and of the local bibliographic mirror
# (unless the call is done from another mirror) and the
# document corresponding to the official version or the most recent
# metadata last update is returned.
#
# Examples:
if 0 {
	http://mtc-m12.sid.inpe.br/urn:doi:10.17487/RFC8141?ibiurl.clientinformation.citingitem=urlib.net/www/2023/06.03.21.17&linktype=relative
	http://gjfb0520.sid.inpe.br/urn:doi:10.1590/0001-3765202320210807?ibiurl.clientinformation.citingitem=urlib.net/www/2023/11.16.13.37&linktype=relative
	http://gjfb:1905/urn:doi:10.1590/0001-3765202320210807?ibiurl.clientinformation.citingitem=urlib.net/www/2023/11.16.13.37&linktype=relative
# both URL below are not processed by Resolve
	http://gjfb:1905/upn:4CR88AP:QABCDSTQQW/4BT93R5?ibiurl.clientinformation.citingitem=iconet.com.br/banon/2001/04.28.19.50&linktype=relative
	http://gjfb:1905/upn:4CR88AP-:QABCDSTQQW/4BT93R5?ibiurl.clientinformation.citingitem=iconet.com.br/banon/2001/04.28.19.50&linktype=relative
}
# this sort of URL must call the solve cgi script

proc Resolve {} {
if [catch {
	global env

# OBS: resolverID == uriPrefix

# resolverID  and destination
	regexp {^/(.+:.+):(.+)$} $env(PATH_INFO) m resolverID destination

# ibiResolver (localSite)
	set ibiResolver $env(SERVER_NAME):$env(SERVER_PORT)
# homePath
	set homePath $env(DOCUMENT_ROOT)
# URLibServiceRepository
	set URLibServiceRepository $env(URLIB_SERVICE_REP)
	
	source $homePath/col/$URLibServiceRepository/doc/utilities1.tcl	;# StoreArray
		
if 0 {	 	
	puts {Content-Type: text/html}
	puts {}
	puts $env(PATH_INFO)	;# => /urn:doi:10.17487/RFC8141

	puts 

	puts $resolverID		;# => urn:doi
	puts 

	puts $destination		;# 10.17487/RFC8141
}

# Store xxx C:/tmp/bbb.txt auto 0 a


	if ![info exists resolverID] {
		puts "Location: http://$ibiResolver/customizeerror.cgi/603"
		puts ""
		return
	}
	
	if [string equal {urn:ibi} $resolverID] {
		puts "Location: http://$ibiResolver/customizeerror.cgi/602"
		puts ""
	}
	
	if {[info exists env(QUERY_STRING)] && [string compare {} $env(QUERY_STRING)] != 0} {
		set queryString ?$env(QUERY_STRING)
	} else {
		set queryString {}
	}

if 0 {	 	
	puts 

	puts --$queryString--	;# => --?ibiurl.clientinformation.citingitem=urlib.net/www/2023/06.03.21.17--
}

	package require http

if 0 {	
# manual update of uriPrefixXresolverURLarray
	set uriPrefixXresolverURLarray(upn:4CR88AP) $ibiResolver	;# added by GJFB in 2025-06-11
	set uriPrefixXresolverURLarray(upn:4CR88AP-) $ibiResolver	;# added by GJFB in 2025-06-11
	set uriPrefixXresolverURLarray(urn:doi) doi.org	;# added by GJFB in 2023-12-26
#	set uriPrefixXresolverURLarray(purl) purl.org
} else {
# automatic update of uriPrefixXresolverURLarray
	if [file exists $homePath/col/$URLibServiceRepository/auxdoc/uriPrefixXresolverURLarray.tcl] {
		source $homePath/col/$URLibServiceRepository/auxdoc/uriPrefixXresolverURLarray.tcl	;# set uriPrefixXresolverURLarray cache
	}
# see: Returning the resolver URL of a given URN or UPN
#	set url http://gjfb:1905/col/urlib.net/www/2025/09.08.04.08/doc/script.cgi?upn:4CR88AP
#	set url http://$ibiResolver/col/urlib.net/www/2025/09.08.04.08/doc/script.cgi?$resolverID
	set url http://urlib.net/col/urlib.net/www/2025/09.08.04.08/doc/script.cgi?$resolverID
	if [catch {http::geturl $url} token] {
# nothing to do		
	} else {
		if {[http::ncode $token] == 200} {
			set uriPrefixXresolverURLarray($resolverID) [string trim [http::data $token]]	;# trim is a must - update uriPrefixXresolverURLarray cache
			if ![string equal {} $uriPrefixXresolverURLarray($resolverID)] {
				StoreArray uriPrefixXresolverURLarray $homePath/col/$URLibServiceRepository/auxdoc/uriPrefixXresolverURLarray.tcl w list array 1
			}
		}
	http::cleanup $token
	}
}
		
	if {![info exists uriPrefixXresolverURLarray($resolverID)] || [string equal {} $uriPrefixXresolverURLarray($resolverID)]} {
		puts "Location: http://$ibiResolver/customizeerror.cgi/603"
		puts ""
		return
	}
	
	if [regexp {upn:4CR88AP-?} $resolverID] {
# upn:4CR88AP or upn:4CR88AP-
		set link $uriPrefixXresolverURLarray($resolverID)/$resolverID:$destination$queryString
	} elseif {[regexp {urn:doi} $resolverID]} {	;# added by GJFB in 2023-11-11 to display a copy (if any) of the item identified by its doi - added by GJFB in 2025-06-29
# urn:doi
		global serverAddress	;# used by SetFieldValue
#		source $homePath/col/$URLibServiceRepository/doc/utilities1.tcl
		source $homePath/col/$URLibServiceRepository/doc/utilitiesMirror.tcl
		source $homePath/col/$URLibServiceRepository/doc/cgi/mirrorfind-.tcl
# serverAddress
		set serverAddress [list $env(SERVER_NAME) $env(URLIB_PORT)]
		
		set resultList [FindMetadataRepositories "doi $destination" 0 {} {} no no 1]
if 0 {	 	
	puts {Content-Type: text/html}
	puts {}
	puts --$resultList--
}		
		if [string equal {} $resultList] {
# no copies of the item identified by its doi were found in the URLib collection
			set link $uriPrefixXresolverURLarray($resolverID)/$destination$queryString	;# use doi
		} else {
# a copy was found
			if [catch {http::geturl http://doi.org/} token] {	;# if added by GJFB in 2025-06-29
# site not found - use the copy
				foreach {site rep-i} [lindex $resultList 0] {break}			
#				puts --$site--
#				puts --${rep-i}--
				SetFieldValue $site ${rep-i} identifier
#				puts --$identifier--
				set link $uriPrefixXresolverURLarray(upn:4CR88AP)/upn:4CR88AP:$identifier$queryString	;# use ibi copy
			} else {
# use the original - added by GJFB in 2025-06-29
				http::cleanup $token
				set link $uriPrefixXresolverURLarray($resolverID)/$destination	;# use doi
			}
		}		
	} else {
# purl...
		return
	}

if 0 {
# testing 'Example of robust hypertext and authentic data' (QABCDSTQQW/4AEFPDB)	when GetOptimizedListOfSites was executed using MultipleExecute
	if [file exists $homePath/fileFlag] {
#		set xWaitQueue 0; after 1000 {set xWaitQueue 1}; vwait xWaitQueue
		set xWaitQueue 0; after 2000 {set xWaitQueue 1}; vwait xWaitQueue	;# OK
	} else {
		set x x
		Store x $homePath/fileFlag
	}
}
	
# location http://doi.org/10.17487/RFC8141 gerado em solve
	puts "Location: http://$link"
	puts ""
# => Location: http://doi.org/10.1590/0001-3765202320210807?ibiurl.clientinformation.citingitem=urlib.net/www/2023/11.16.13.37&linktype=relative 

	} m] {
	if ![string equal {} $m] {
		puts {Content-Type: text/html}
		puts {}
		puts "
Resolve: $m
"
		if 0 {global errorInfo; puts 
$errorInfo
}
	}
}
}
#