From 4663c6c0a06307cae527c52bdc058a8790a22b62 Mon Sep 17 00:00:00 2001
From: Martynas <martynas@atomgraph.com>
Date: Tue, 14 Nov 2023 22:09:45 +0100
Subject: [PATCH] New `ldh:href` function that takes `$graph`

---
 .../xsl/bootstrap/2.3.2/client/content.xsl    |  2 +-
 .../xsl/bootstrap/2.3.2/imports/default.xsl   | 33 +++++++++++++++++++
 2 files changed, 34 insertions(+), 1 deletion(-)

diff --git a/src/main/webapp/static/com/atomgraph/linkeddatahub/xsl/bootstrap/2.3.2/client/content.xsl b/src/main/webapp/static/com/atomgraph/linkeddatahub/xsl/bootstrap/2.3.2/client/content.xsl
index 5cb987dd4..9cad2391b 100644
--- a/src/main/webapp/static/com/atomgraph/linkeddatahub/xsl/bootstrap/2.3.2/client/content.xsl
+++ b/src/main/webapp/static/com/atomgraph/linkeddatahub/xsl/bootstrap/2.3.2/client/content.xsl
@@ -1051,7 +1051,7 @@ exclude-result-prefixes="#all"
         </xsl:for-each>
 
         <!-- don't use base-uri() because it's value comes from the last HTML document load -->
-        <xsl:variable name="request-uri" select="ldh:href($ldt:base, if (starts-with($graph, $ldt:base)) then $graph else ac:absolute-path(xs:anyURI(ixsl:location())), map{}, $content-value)" as="xs:anyURI"/>
+        <xsl:variable name="request-uri" select="ldh:href($ldt:base, if (starts-with($graph, $ldt:base)) then $graph else ac:absolute-path(xs:anyURI(ixsl:location())), map{}, $content-value, $graph, ())" as="xs:anyURI"/>
         <xsl:variable name="request" as="item()*">
             <ixsl:schedule-action http-request="map{ 'method': 'GET', 'href': ac:document-uri($request-uri), 'headers': map{ 'Accept': 'application/rdf+xml' } }">
                 <xsl:call-template name="onContentValueLoad">
diff --git a/src/main/webapp/static/com/atomgraph/linkeddatahub/xsl/bootstrap/2.3.2/imports/default.xsl b/src/main/webapp/static/com/atomgraph/linkeddatahub/xsl/bootstrap/2.3.2/imports/default.xsl
index 26e5e31c6..0b0c76d75 100644
--- a/src/main/webapp/static/com/atomgraph/linkeddatahub/xsl/bootstrap/2.3.2/imports/default.xsl
+++ b/src/main/webapp/static/com/atomgraph/linkeddatahub/xsl/bootstrap/2.3.2/imports/default.xsl
@@ -88,6 +88,7 @@ exclude-result-prefixes="#all"
         <xsl:param name="absolute-path" as="xs:anyURI"/>
         <xsl:param name="query-params" as="map(xs:string, xs:string*)"/>
         <xsl:param name="uri" as="xs:anyURI?"/>
+        <xsl:param name="graph" select="if ($uri) then ac:absolute-path($uri) else ()" as="xs:anyURI?"/>
         <xsl:param name="fragment" as="xs:string?"/>
 
         <xsl:choose>
@@ -109,6 +110,38 @@ exclude-result-prefixes="#all"
         </xsl:choose>
     </xsl:function>
     
+    <xsl:function name="ldh:href" as="xs:anyURI">
+        <xsl:param name="base" as="xs:anyURI"/>
+        <xsl:param name="absolute-path" as="xs:anyURI"/>
+        <xsl:param name="query-params" as="map(xs:string, xs:string*)"/>
+        <xsl:param name="uri" as="xs:anyURI?"/>
+        <xsl:param name="graph" as="xs:anyURI?"/>
+        <xsl:param name="fragment" as="xs:string?"/>
+
+        <xsl:choose>
+            <!-- do not proxy $uri via ?uri= if it is relative to the $base -->
+            <xsl:when test="$uri and starts-with($uri, $base)">
+                <xsl:variable name="absolute-path" select="xs:anyURI(if (contains($uri, '#')) then substring-before($uri, '#') else $uri)" as="xs:anyURI"/>
+                <xsl:variable name="fragment" select="if ($fragment) then $fragment else if (contains($uri, '#')) then substring-after($uri, '#') else ()" as="xs:string?"/>
+                <xsl:sequence select="xs:anyURI(ac:build-uri($absolute-path, $query-params) || (if ($fragment) then ('#' || $fragment) else ()))"/>
+            </xsl:when>
+            <!-- proxy external URI/graph -->
+            <xsl:when test="$uri and $graph">
+                <xsl:variable name="fragment" select="if ($fragment) then $fragment else encode-for-uri($uri)" as="xs:string?"/>
+                <xsl:sequence select="xs:anyURI(ac:build-uri($absolute-path, map:merge((map{ 'uri': string($uri), 'graph': string($graph) }, $query-params))) || (if ($fragment) then ('#' || $fragment) else ()))"/>
+            </xsl:when>
+            <!-- proxy external URI -->
+            <xsl:when test="$uri">
+                <xsl:variable name="fragment" select="if ($fragment) then $fragment else encode-for-uri($uri)" as="xs:string?"/>
+                <xsl:sequence select="xs:anyURI(ac:build-uri($absolute-path, map:merge((map{ 'uri': string($uri), 'graph': string($absolute-path) }, $query-params))) || (if ($fragment) then ('#' || $fragment) else ()))"/>
+            </xsl:when>
+            <!-- no URI supplied -->
+            <xsl:otherwise>
+                <xsl:sequence select="xs:anyURI(ac:build-uri($absolute-path, $query-params) || (if ($fragment) then ('#' || $fragment) else ()))"/>
+            </xsl:otherwise>
+        </xsl:choose>
+    </xsl:function>
+    
     <xsl:function name="ldh:query-params" as="map(xs:string, xs:string*)">
         <xsl:param name="mode" as="xs:anyURI*"/>