Mercurial Hosting > luan
annotate src/luan/host/WebHandler.java @ 1185:94cf2576a922
implement WebHandler for nginx
| author | Franklin Schmidt <fschmidt@gmail.com> |
|---|---|
| date | Wed, 21 Feb 2018 21:22:16 -0700 |
| parents | src/luan/host/jetty/WebHandler.java@0b55a1af5a44 |
| children | 83c8a5a47f70 |
| rev | line source |
|---|---|
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1185
94cf2576a922
implement WebHandler for nginx
Franklin Schmidt <fschmidt@gmail.com>
parents:
1182
diff
changeset
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1 package luan.host; |
| 1135 | 2 |
| 3 import java.io.File; | |
| 4 import java.io.IOException; | |
| 5 import java.util.Map; | |
| 6 import java.util.HashMap; | |
| 7 import org.slf4j.Logger; | |
| 8 import org.slf4j.LoggerFactory; | |
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1185
94cf2576a922
implement WebHandler for nginx
Franklin Schmidt <fschmidt@gmail.com>
parents:
1182
diff
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9 import luan.webserver.Handler; |
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94cf2576a922
implement WebHandler for nginx
Franklin Schmidt <fschmidt@gmail.com>
parents:
1182
diff
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10 import luan.webserver.Server; |
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94cf2576a922
implement WebHandler for nginx
Franklin Schmidt <fschmidt@gmail.com>
parents:
1182
diff
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11 import luan.webserver.Request; |
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94cf2576a922
implement WebHandler for nginx
Franklin Schmidt <fschmidt@gmail.com>
parents:
1182
diff
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12 import luan.webserver.Response; |
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94cf2576a922
implement WebHandler for nginx
Franklin Schmidt <fschmidt@gmail.com>
parents:
1182
diff
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13 import luan.webserver.handlers.IndexHandler; |
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94cf2576a922
implement WebHandler for nginx
Franklin Schmidt <fschmidt@gmail.com>
parents:
1182
diff
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14 import luan.webserver.handlers.ListHandler; |
| 1135 | 15 import luan.Luan; |
| 16 import luan.LuanState; | |
| 17 import luan.LuanException; | |
| 18 import luan.LuanTable; | |
| 19 import luan.LuanFunction; | |
| 20 import luan.modules.IoLuan; | |
| 21 import luan.modules.JavaLuan; | |
| 22 import luan.modules.PackageLuan; | |
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1185
94cf2576a922
implement WebHandler for nginx
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parents:
1182
diff
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23 import luan.modules.http.LuanHandler; |
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94cf2576a922
implement WebHandler for nginx
Franklin Schmidt <fschmidt@gmail.com>
parents:
1182
diff
changeset
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24 import luan.modules.http.NotFound; |
| 1135 | 25 |
| 26 | |
|
1185
94cf2576a922
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Franklin Schmidt <fschmidt@gmail.com>
parents:
1182
diff
changeset
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27 public class WebHandler implements Handler { |
| 1135 | 28 private static final Logger logger = LoggerFactory.getLogger(WebHandler.class); |
| 29 | |
| 30 private static class Site { | |
| 31 final Handler handler; | |
| 32 final LuanHandler luanHandler; | |
| 33 | |
| 34 Site(Handler handler,LuanHandler luanHandler) { | |
| 35 this.handler = handler; | |
| 36 this.luanHandler = luanHandler; | |
| 37 } | |
| 38 } | |
| 39 | |
| 40 public static String allowJavaFileName = "allow_java"; // change for security | |
| 41 private static final Map<String,Site> siteMap = new HashMap<String,Site>(); | |
| 42 private static String sitesDir = null; | |
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1185
94cf2576a922
implement WebHandler for nginx
Franklin Schmidt <fschmidt@gmail.com>
parents:
1182
diff
changeset
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43 public static Server server; |
| 1135 | 44 |
| 45 public static boolean isServing() { | |
| 46 return sitesDir != null; | |
| 47 } | |
| 48 | |
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1185
94cf2576a922
implement WebHandler for nginx
Franklin Schmidt <fschmidt@gmail.com>
parents:
1182
diff
changeset
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49 public WebHandler(String dir) { |
| 1135 | 50 if( sitesDir != null ) |
| 51 throw new RuntimeException("already set"); | |
| 52 if( !new File(dir).exists() ) | |
| 53 throw new RuntimeException(); | |
| 54 this.sitesDir = dir; | |
| 55 } | |
| 56 | |
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1185
94cf2576a922
implement WebHandler for nginx
Franklin Schmidt <fschmidt@gmail.com>
parents:
1182
diff
changeset
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57 public Response handle(Request request) { |
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94cf2576a922
implement WebHandler for nginx
Franklin Schmidt <fschmidt@gmail.com>
parents:
1182
diff
changeset
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58 String host = (String)request.headers.get("host"); |
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94cf2576a922
implement WebHandler for nginx
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parents:
1182
diff
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59 int i = host.indexOf(':'); |
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94cf2576a922
implement WebHandler for nginx
Franklin Schmidt <fschmidt@gmail.com>
parents:
1182
diff
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60 String domain = i == -1 ? host : host.substring(0,i); |
| 1135 | 61 // System.out.println("handle "+domain); |
| 62 Site site = getSite(domain); | |
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1185
94cf2576a922
implement WebHandler for nginx
Franklin Schmidt <fschmidt@gmail.com>
parents:
1182
diff
changeset
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63 return site==null ? null : site.handler.handle(request); |
| 1135 | 64 } |
| 65 | |
| 66 public static Object runLuan(String domain,String sourceText,String sourceName) throws LuanException { | |
| 67 return getSite(domain).luanHandler.runLuan(sourceText,sourceName); | |
| 68 } | |
| 69 | |
| 70 public static Object callSite(String domain,String fnName,Object... args) throws LuanException { | |
| 71 return getSite(domain).luanHandler.call_rpc(fnName,args); | |
| 72 } | |
| 73 | |
| 74 private static Site getSite(String domain) { | |
| 75 synchronized(siteMap) { | |
| 76 Site site = siteMap.get(domain); | |
| 77 if( site == null ) { | |
| 78 if( sitesDir==null ) | |
| 79 throw new NullPointerException("sitesDir"); | |
| 80 File dir = new File(sitesDir,domain); | |
| 81 if( !dir.exists() /* && !recover(dir) */ ) | |
| 82 return null; | |
| 83 site = newSite(dir.toString(),domain); | |
| 84 siteMap.put(domain,site); | |
| 85 } | |
| 86 return site; | |
| 87 } | |
| 88 } | |
| 89 /* | |
| 90 private static boolean recover(File dir) { | |
| 91 File backups = new File(dir.getParentFile().getParentFile(),"backups"); | |
| 92 if( !backups.exists() ) | |
| 93 return false; | |
| 94 String name = dir.getName(); | |
| 95 File from = null; | |
| 96 for( File backup : backups.listFiles() ) { | |
| 97 File d = new File(backup,"current/"+name); | |
| 98 if( d.exists() && (from==null || from.lastModified() < d.lastModified()) ) | |
| 99 from = d; | |
| 100 } | |
| 101 if( from == null ) | |
| 102 return false; | |
| 103 if( !from.renameTo(dir) ) | |
| 104 throw new RuntimeException("couldn't rename "+from+" to "+dir); | |
| 105 logger.info("recovered "+name+" from "+from); | |
| 106 return true; | |
| 107 } | |
| 108 */ | |
| 109 static LuanTable initLuan(LuanState luan,String dir,String domain) { | |
| 110 LuanTable init; | |
| 111 try { | |
| 112 init = (LuanTable)luan.eval( | |
| 113 "local Luan = require 'luan:Luan.luan'\n" | |
| 114 +"local f = Luan.load_file 'classpath:luan/host/Init.luan'\n" | |
| 115 +"return f('"+dir+"','"+domain+"')\n" | |
| 116 ); | |
| 117 } catch(LuanException e) { | |
| 118 throw new RuntimeException(e); | |
| 119 } | |
| 120 File allowJavaFile = new File(dir,"site/private/"+allowJavaFileName); | |
| 121 if( !allowJavaFile.exists() ) { | |
| 122 JavaLuan.setSecurity( luan, javaSecurity ); | |
| 123 IoLuan.setSecurity( luan, ioSecurity(dir) ); | |
| 124 } | |
| 125 return init; | |
| 126 } | |
| 127 | |
| 128 private static Site newSite(String dir,String domain) { | |
| 129 LuanState luan = new LuanState(); | |
| 130 LuanTable init = initLuan(luan,dir,domain); | |
| 131 | |
| 132 String loggerRoot = (String)init.rawGet("logger_root"); | |
| 133 LuanHandler luanHandler = new LuanHandler(luan,loggerRoot); | |
|
1185
94cf2576a922
implement WebHandler for nginx
Franklin Schmidt <fschmidt@gmail.com>
parents:
1182
diff
changeset
|
134 NotFound notFoundHandler = new NotFound(luanHandler); |
| 1135 | 135 |
|
1185
94cf2576a922
implement WebHandler for nginx
Franklin Schmidt <fschmidt@gmail.com>
parents:
1182
diff
changeset
|
136 Handler handler = luanHandler; |
|
94cf2576a922
implement WebHandler for nginx
Franklin Schmidt <fschmidt@gmail.com>
parents:
1182
diff
changeset
|
137 handler = new IndexHandler(handler); |
|
94cf2576a922
implement WebHandler for nginx
Franklin Schmidt <fschmidt@gmail.com>
parents:
1182
diff
changeset
|
138 handler = new ListHandler( handler, notFoundHandler ); |
| 1135 | 139 |
| 140 String logDir = dir+"/site/private/local/logs/web"; | |
| 141 new File(logDir).mkdirs(); | |
| 142 | |
|
1185
94cf2576a922
implement WebHandler for nginx
Franklin Schmidt <fschmidt@gmail.com>
parents:
1182
diff
changeset
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143 return new Site(handler,luanHandler); |
| 1135 | 144 } |
| 145 | |
| 146 public static void removeHandler(String domain) throws Exception { | |
| 147 synchronized(siteMap) { | |
| 148 Site site = siteMap.remove(domain); | |
| 149 if( site != null ) { | |
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1185
94cf2576a922
implement WebHandler for nginx
Franklin Schmidt <fschmidt@gmail.com>
parents:
1182
diff
changeset
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150 site.luanHandler.close(); |
| 1135 | 151 } |
| 152 } | |
| 153 } | |
| 154 | |
| 155 public static void loadHandler(String domain) { | |
| 156 getSite(domain); | |
| 157 } | |
| 158 | |
| 159 private static final IoLuan.Security ioSecurity(String dir) { | |
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1174
bdf27aa2a65c
fix luanhost security bug
Franklin Schmidt <fschmidt@gmail.com>
parents:
1136
diff
changeset
|
160 final String siteUri = "file:" + dir + "/site"; |
| 1135 | 161 return new IoLuan.Security() { |
| 162 public void check(LuanState luan,String name) throws LuanException { | |
| 163 if( name.startsWith("file:") ) { | |
| 164 if( name.contains("..") ) | |
| 165 throw new LuanException("Security violation - '"+name+"' contains '..'"); | |
|
1174
bdf27aa2a65c
fix luanhost security bug
Franklin Schmidt <fschmidt@gmail.com>
parents:
1136
diff
changeset
|
166 if( !(name.equals(siteUri) || name.startsWith(siteUri+"/")) ) |
| 1135 | 167 throw new LuanException("Security violation - '"+name+"' outside of site dir"); |
| 168 } | |
| 169 else if( name.startsWith("classpath:luan/host/") ) { | |
| 170 throw new LuanException("Security violation"); | |
| 171 } | |
| 172 else if( name.startsWith("os:") || name.startsWith("bash:") ) { | |
| 173 throw new LuanException("Security violation"); | |
| 174 } | |
| 175 } | |
| 176 }; | |
| 177 } | |
| 178 | |
| 179 private static final JavaLuan.Security javaSecurity = new JavaLuan.Security() { | |
| 180 public void check(LuanState luan,String name) throws LuanException { | |
| 181 if( !name.startsWith("luan:") ) | |
| 182 throw new LuanException("Security violation - only luan:* modules can load Java"); | |
| 183 if( name.equals("luan:logging/Logging") ) | |
| 184 throw new LuanException("Security violation - cannot reload Logging"); | |
| 185 } | |
| 186 }; | |
| 187 } |