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