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annotate src/luan/modules/http/impl/HttpServicer.java @ 1160:4beabb087be6

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add http/impl
author Franklin Schmidt <fschmidt@gmail.com>
date Mon, 05 Feb 2018 22:33:59 -0700
parents src/luan/modules/http/jetty/HttpServicer.java@3ef883468fd0
children fef8f0742da9
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1 package luan.modules.http.impl;
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2
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3 import java.io.Closeable;
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4 import java.io.IOException;
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5 import java.util.Map;
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6 import java.util.HashMap;
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7 import org.slf4j.Logger;
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8 import org.slf4j.LoggerFactory;
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9 import luan.webserver.Request;
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10 import luan.webserver.Response;
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11 import luan.webserver.Status;
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12 import luan.Luan;
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13 import luan.LuanState;
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14 import luan.LuanFunction;
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15 import luan.LuanException;
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16 import luan.LuanTable;
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17 import luan.LuanCloner;
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18 import luan.modules.PackageLuan;
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20
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21 public final class HttpServicer {
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22 private static final Logger logger = LoggerFactory.getLogger(HttpServicer.class);
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23
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24 public static Response service(LuanState luan,Request request)
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25 throws LuanException
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26 {
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27 if( request.path.endsWith("/") )
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28 return null;
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29 LuanFunction fn;
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30 synchronized(luan) {
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31 String modName = "site:" + request.path +".luan";
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32 PackageLuan.enableLoad(luan,"luan:http/Http.luan",modName);
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33 LuanTable module = (LuanTable)PackageLuan.require(luan,"luan:http/Http.luan");
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34 Object mod = PackageLuan.load(luan,modName);
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35 if( mod.equals(Boolean.FALSE) )
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36 return null;
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37 if( !(mod instanceof LuanFunction) )
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38 throw new LuanException( "module '"+modName+"' must return a function" );
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39 LuanCloner cloner = new LuanCloner(LuanCloner.Type.INCREMENTAL);
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40 luan = (LuanState)cloner.clone(luan);
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41 fn = (LuanFunction)cloner.get(mod);
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42 }
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43
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44 LuanTable module = (LuanTable)PackageLuan.require(luan,"luan:http/Http.luan");
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46 // request
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47 LuanFunction newRequestFn = (LuanFunction)module.rawGet("new_request");
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48 newRequestFn.call( luan, new Object[]{request} );
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49
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50 // response
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51 Response response = new Response();
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52 LuanFunction newResponseFn = (LuanFunction)module.rawGet("new_response");
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53 LuanTable responseTbl = (LuanTable)newResponseFn.call( luan, new Object[]{response} );
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54
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55 fn.call(luan);
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56
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57 response.status = Status.getStatus( Luan.asInteger(responseTbl.rawGet("status")) );
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58 LuanTable headersTbl = (LuanTable)responseTbl.rawGet("headers");
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59 if( !headersTbl.rawIsEmpty() ) {
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60 Map headers = (Map)Luan.toJava(headersTbl);
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61 for( Object obj : headers.entrySet() ) {
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62 Map.Entry entry = (Map.Entry)obj;
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63 String name = (String)entry.getKey();
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64 Object value = entry.getValue();
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65 response.headers.put(name,value);
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66 }
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67 }
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68 Closeable writer = (Closeable)responseTbl.rawGet("writer");
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69 if( writer != null ) {
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70 try {
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71 ((Closeable)writer).close();
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72 } catch(IOException e) {
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73 throw new RuntimeException(e);
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74 }
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75 }
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77 return response;
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78 }
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80 public static void setCookie(LuanState luan,Response response,String name,String value,LuanTable attributesTbl)
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81 throws LuanException
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82 {
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83 Map<String,String> attributes = new HashMap<String,String>();
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84 if( attributesTbl != null ) {
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85 for( Map.Entry entry : attributesTbl.iterable(luan) ) {
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86 String key = (String)entry.getKey();
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87 if( !(key instanceof String) )
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88 throw new LuanException("cookie attribute name must be string");
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89 String val = (String)entry.getValue();
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90 if( !(val instanceof String) )
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91 throw new LuanException("cookie attribute value must be string");
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92 attributes.put(key,val);
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93 }
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94 }
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95 response.setCookie(name,value,attributes);
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96 }
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98 }