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comparison src/nabble/view/web/template/UrlMapperNamespace.java @ 0:7ecd1a4ef557

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author Franklin Schmidt <fschmidt@gmail.com>
date Thu, 21 Mar 2019 19:15:52 -0600
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-1:000000000000 0:7ecd1a4ef557
1 package nabble.view.web.template;
2
3 import fschmidt.util.servlet.UrlMapping;
4 import nabble.model.ModelHome;
5 import nabble.model.Node;
6 import nabble.model.Site;
7 import nabble.naml.namespaces.BasicNamespace;
8 import nabble.naml.compiler.Command;
9 import nabble.naml.compiler.IPrintWriter;
10 import nabble.naml.compiler.Interpreter;
11 import nabble.naml.compiler.CommandSpec;
12 import nabble.naml.compiler.Template;
13 import nabble.naml.compiler.TemplatePrintWriter;
14 import nabble.naml.compiler.Namespace;
15 import nabble.view.lib.Jtp;
16
17 import javax.servlet.http.HttpServletRequest;
18 import java.net.MalformedURLException;
19 import java.net.URL;
20 import java.util.Collections;
21 import java.util.HashMap;
22 import java.util.Map;
23
24
25 @Namespace (
26 name = "url_mapper",
27 global = true
28 )
29 public final class UrlMapperNamespace {
30 private final String path;
31 private final Map<String,String[]> params = new HashMap<String,String[]>();
32
33 private UrlMapperNamespace(HttpServletRequest request) {
34 this( request.getServletPath() + Jtp.hideNull(request.getPathInfo()) );
35 }
36
37 private UrlMapperNamespace(String path) {
38 this.path = path;
39 }
40
41 @Command("path") public void _path(IPrintWriter out,Interpreter interp) {
42 out.print( path );
43 }
44
45 public static final CommandSpec set_parameter = new CommandSpec.Builder()
46 .parameters("name")
47 .dotParameter("value")
48 .outputtedParameters()
49 .build()
50 ;
51
52 @Command public void set_parameter(IPrintWriter out,Interpreter interp) {
53 String name = interp.getArgString("name");
54 String value = interp.getArgString("value");
55 params.put(name,new String[]{value});
56 }
57
58 public static UrlMapping getUrlMapping(HttpServletRequest request) {
59 Site site = Jtp.getSite(request);
60 if( site == null )
61 return null;
62 Template template = site.getTemplate( "url mapper" ,
63 BasicNamespace.class, NabbleNamespace.class, UrlMapperNamespace.class
64 );
65 if( template == null )
66 return null;
67 UrlMapperNamespace umn = new UrlMapperNamespace(request);
68 template.run( TemplatePrintWriter.NULL, Collections.<String,Object>emptyMap(),
69 new BasicNamespace(template), new NabbleNamespace(site), umn
70 );
71 if( umn.params.isEmpty() )
72 return null;
73 return new UrlMapping(NamlServlet.class,umn.params);
74 }
75
76 public static Map<String,String> getParams(String urlStr) {
77 try {
78 URL url = new URL(urlStr);
79 String domain = url.getHost();
80 Long siteId = Jtp.getSiteIdFromDomain(domain);
81 if( siteId == null )
82 return null;
83 Site site = ModelHome.getSite(siteId);
84 Template template = site.getTemplate( "url mapper" ,
85 BasicNamespace.class, NabbleNamespace.class, UrlMapperNamespace.class
86 );
87 if( template == null )
88 return null;
89 UrlMapperNamespace umn = new UrlMapperNamespace(url.getPath());
90 template.run( TemplatePrintWriter.NULL, Collections.<String,Object>emptyMap(),
91 new BasicNamespace(template), new NabbleNamespace(site), umn
92 );
93 Map<String,String> params = new HashMap<String,String>();
94 for( Map.Entry<String,String[]> entry : umn.params.entrySet() ) {
95 params.put( entry.getKey(), entry.getValue()[0] );
96 }
97 return params;
98 } catch(MalformedURLException e) {
99 return null;
100 }
101 }
102
103 public static Node getNodeFromUrl(String url) {
104 Site site = Jtp.getSiteFromUrl(url);
105 if( site == null )
106 return null;
107 Map<String,String> params = getParams(url);
108 if( params == null )
109 return null;
110 try {
111 return site.getNode( Long.parseLong( params.get("node") ) );
112 } catch(NumberFormatException e) {
113 return null;
114 }
115 }
116
117 }