X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=src%2Forg%2Fxwt%2FXMLRPC.java;h=7290e20d272a79d986bed11b68fb344a428bc387;hb=1520bffb91aed116c109133503f21082951e7d09;hp=7f5355b030b33e42eb46476b208c516080efc782;hpb=a1c5591968de1f1aff5fdd497e0410a77b6281d3;p=org.ibex.core.git diff --git a/src/org/xwt/XMLRPC.java b/src/org/xwt/XMLRPC.java index 7f5355b..7290e20 100644 --- a/src/org/xwt/XMLRPC.java +++ b/src/org/xwt/XMLRPC.java @@ -1,16 +1,16 @@ -// Copyright 2002 Adam Megacz, see the COPYING file for licensing [GPL] +// Copyright 2003 Adam Megacz, see the COPYING file for licensing [GPL] package org.xwt; import java.io.*; import java.net.*; import java.util.*; -import org.mozilla.javascript.*; +import org.xwt.js.*; import org.xwt.util.*; import org.bouncycastle.util.encoders.Base64; /** - * An XML-RPC client implemented as a Rhino JavaScript Host - * Object. See the XWT spec for information on its behavior. + * An XML-RPC client implemented as a JavaScript Host Object. See the + * XWT spec for information on its behavior. * * NOTE: this client is EXTREMELY lenient in the responses it will * accept; there are many, many invalid responses that it will @@ -30,16 +30,21 @@ import org.bouncycastle.util.encoders.Base64; * convert. * */ -class XMLRPC extends XML implements Function { +class XMLRPC extends JS { - /** the url to connect to */ - protected String url = null; + public XMLRPC(String url, String method) { this(url, method, new HTTP(url)); } + public XMLRPC(String url, String method, HTTP http) { this.http = http; this.url = url; this.method = method; } + public Object get(Object name) { return new XMLRPC(url, (method.equals("") ? "" : method + ".") + name.toString(), http); } - /** the method name to invoke on the remove server */ - protected String methodname = null; /** this holds character content as we read it in -- since there is only one per instance, we don't support mixed content */ protected AccessibleCharArrayWriter content = new AccessibleCharArrayWriter(100); + protected String url = null; ///< the url to connect to + protected String method = null; ///< the method name to invoke on the remove server + protected HTTP http = null; ///< the HTTP connection to use + private Hash tracker; ///< used to detect multi-ref data + protected boolean fault = false; ///< True iff the return value is a fault (and should be thrown as an exception) + /** The object stack. As we process xml elements, pieces of the * return value are pushed onto and popped off of this stack. @@ -52,10 +57,10 @@ class XMLRPC extends XML implements Function { * * If an <array> tag is encountered, a null is pushed onto the * stack. When a </data> is encountered, we search back on the - * stack to the last null, replace it with a NativeArray, and + * stack to the last null, replace it with a NativeJSArray, and * insert into it all elements above it on the stack. * - * If a <struct> tag is encountered, a JSObject is pushed + * If a <struct> tag is encountered, a JSect is pushed * onto the stack. If a <name> tag is encountered, its CDATA is * pushed onto the stack. When a </member> is encountered, the * name (second element on stack) and value (top of stack) are @@ -64,108 +69,121 @@ class XMLRPC extends XML implements Function { */ protected Vec objects = null; - /** used to detect multi-ref data */ - private Hash tracker; - - /** True iff the return value is a fault (and should be thrown as an exception) */ - protected boolean fault = false; - - - // Methods to Recieve and parse XML-RPC Response //////////////////////////////////////////////////// - - public void startElement(String name, String[] keys, Object[] vals, int line, int col) { - content.reset(); - if (name.equals("fault")) fault = true; - else if (name.equals("struct")) objects.setElementAt(new JSObject(false), objects.size() - 1); - else if (name.equals("array")) objects.setElementAt(null, objects.size() - 1); - else if (name.equals("value")) objects.addElement(""); - } - - public void endElement(String name, int line, int col) { - - if (name.equals("int") || name.equals("i4")) - objects.setElementAt(new Integer(new String(content.getBuf(), 0, content.size())), objects.size() - 1); - - else if (name.equals("boolean")) - objects.setElementAt(content.getBuf()[0] == '1' ? Boolean.TRUE : Boolean.FALSE, objects.size() - 1); - - else if (name.equals("string")) - objects.setElementAt(new String(content.getBuf(), 0, content.size()), objects.size() - 1); - - else if (name.equals("double")) - objects.setElementAt(new Double(new String(content.getBuf(), 0, content.size())), objects.size() - 1); - else if (name.equals("base64")) - objects.setElementAt(new ByteStream(Base64.decode(new String(content.getBuf(), 0, content.size()))), objects.size() - 1); + // Recieve //////////////////////////////////////////////////////////////// - else if (name.equals("name")) - objects.addElement(new String(content.getBuf(), 0, content.size())); + private class Helper extends XML { + public Helper() { super(BUFFER_SIZE); } - else if (name.equals("value") && "".equals(objects.lastElement())) - objects.setElementAt(new String(content.getBuf(), 0, content.size()), objects.size() - 1); - - else if (name.equals("dateTime.iso8601")) { - String s = new String(content.getBuf(), 0, content.size()); - - // strip whitespace - int i=0; - while(Character.isWhitespace(s.charAt(i))) i++; - if (i > 0) s = s.substring(i); - - try { - NativeDate nd = (NativeDate)Context.enter().newObject(org.xwt.util.JSObject.defaultObjects, "Date"); - double date = NativeDate.date_msecFromDate(Double.valueOf(s.substring(0, 4)).doubleValue(), - Double.valueOf(s.substring(4, 6)).doubleValue() - 1, - Double.valueOf(s.substring(6, 8)).doubleValue(), - Double.valueOf(s.substring(9, 11)).doubleValue(), - Double.valueOf(s.substring(12, 14)).doubleValue(), - Double.valueOf(s.substring(15, 17)).doubleValue(), - (double)0 - ); - nd.jsFunction_setTime(NativeDate.internalUTC(date)); - objects.setElementAt(nd, objects.size() - 1); - - } catch (Exception e) { - if (Log.on) Log.log(this, "error parsing date : " + s); - if (Log.on) Log.log(this, e); + public void startElement(XML.Element c) { + content.reset(); + //#switch(c.getLocalName()) + case "fault": fault = true; + case "struct": objects.setElementAt(new JS(), objects.size() - 1); + case "array": objects.setElementAt(null, objects.size() - 1); + case "value": objects.addElement(""); + //#end + } + + public void endElement(XML.Element c) { + //#switch(c.getLocalName()) + case "int": objects.setElementAt(new Integer(new String(content.getBuf(), 0, content.size())), objects.size() - 1); + case "i4": objects.setElementAt(new Integer(new String(content.getBuf(), 0, content.size())), objects.size() - 1); + case "boolean": objects.setElementAt(content.getBuf()[0] == '1' ? Boolean.TRUE : Boolean.FALSE, objects.size() - 1); + case "string": objects.setElementAt(new String(content.getBuf(), 0, content.size()), objects.size() - 1); + case "double": objects.setElementAt(new Double(new String(content.getBuf(), 0, content.size())), objects.size() - 1); + case "base64": objects.setElementAt(new Stream.ByteArray(Base64.decode(new String(content.getBuf(), 0, content.size())), + null), objects.size() - 1); + case "name": objects.addElement(new String(content.getBuf(), 0, content.size())); + case "value": if ("".equals(objects.lastElement())) + objects.setElementAt(new String(content.getBuf(), 0, content.size()), objects.size() - 1); + case "dateTime.iso8601": + String s = new String(content.getBuf(), 0, content.size()); + + // strip whitespace + int i=0; + while(Character.isWhitespace(s.charAt(i))) i++; + if (i > 0) s = s.substring(i); + + try { + JSDate nd = new JSDate(); + double date = JSDate.date_msecFromDate(Double.valueOf(s.substring(0, 4)).doubleValue(), + Double.valueOf(s.substring(4, 6)).doubleValue() - 1, + Double.valueOf(s.substring(6, 8)).doubleValue(), + Double.valueOf(s.substring(9, 11)).doubleValue(), + Double.valueOf(s.substring(12, 14)).doubleValue(), + Double.valueOf(s.substring(15, 17)).doubleValue(), + (double)0 + ); + nd.setTime(JSDate.internalUTC(date)); + objects.setElementAt(nd, objects.size() - 1); + + } catch (Exception e) { + if (Log.on) Log.info(this, "error parsing date : " + s); + if (Log.on) Log.info(this, e); + } + case "member": + Object memberValue = objects.elementAt(objects.size() - 1); + String memberName = (String)objects.elementAt(objects.size() - 2); + JS struct = (JS)objects.elementAt(objects.size() - 3); + try { + struct.put(memberName, memberValue); + } catch (JSExn e) { + throw new Error("this should never happen"); + } + objects.setSize(objects.size() - 2); + case "data": + int i; + for(i=objects.size() - 1; objects.elementAt(i) != null; i--); + JSArray arr = new JSArray(); + try { + for(int j = i + 1; j\n"); + content.append(" \n"); + content.append(" "); + content.append(method); + content.append("\n"); + content.append(" \n"); + for(int i=0; i\n"); + appendObject(args.elementAt(i), content); + content.append(" \n"); } + content.append(" \n"); + content.append(" "); + return content.toString(); } - - // Methods to make outbound XML-RPC request /////////////////////////////////////////////////// - /** Appends the XML-RPC representation of o to sb */ - void appendObject(Object o, StringBuffer sb) throws JavaScriptException { + void appendObject(Object o, StringBuffer sb) throws JSExn { if (o == null) { - throw new JavaScriptException("attempted to send a null value via XML-RPC"); + throw new JSExn("attempted to send a null value via XML-RPC"); } else if (o instanceof Number) { if ((double)((Number)o).intValue() == ((Number)o).doubleValue()) { @@ -183,10 +201,10 @@ class XMLRPC extends XML implements Function { sb.append(((Boolean)o).booleanValue() ? "1" : "0"); sb.append("\n"); - } else if (o instanceof ByteStream) { + } else if (o instanceof Stream) { try { sb.append(" \n"); - InputStream is = ((ByteStream)o).getInputStream(); + InputStream is = ((Stream)o).getInputStream(); byte[] buf = new byte[54]; while(true) { int numread = is.read(buf, 0, 54); @@ -202,9 +220,9 @@ class XMLRPC extends XML implements Function { } sb.append("\n \n"); } catch (IOException e) { - if (Log.on) Log.log(this, "caught IOException while attempting to send a ByteStream via XML-RPC"); - if (Log.on) Log.log(this, e); - throw new JavaScriptException("caught IOException while attempting to send a ByteStream via XML-RPC"); + if (Log.on) Log.info(this, "caught IOException while attempting to send a ByteStream via XML-RPC"); + if (Log.on) Log.info(this, e); + throw new JSExn("caught IOException while attempting to send a ByteStream via XML-RPC"); } } else if (o instanceof String) { @@ -227,10 +245,9 @@ class XMLRPC extends XML implements Function { } sb.append("\n"); - } else if (o instanceof NativeDate) { + } else if (o instanceof JSDate) { sb.append(" "); - NativeDate nd = (NativeDate)o; - Date d = new Date(nd.getRawTime()); + java.util.Date d = new java.util.Date(((JSDate)o).getRawTime()); sb.append(d.getYear() + 1900); if (d.getMonth() + 1 < 10) sb.append('0'); sb.append(d.getMonth() + 1); @@ -247,198 +264,76 @@ class XMLRPC extends XML implements Function { sb.append(d.getSeconds()); sb.append("\n"); - } else if (o instanceof NativeArray) { - if (tracker.get(o) != null) throw new JavaScriptException("attempted to send multi-ref data structure via XML-RPC"); + } else if (o instanceof JSArray) { + if (tracker.get(o) != null) throw new JSExn("attempted to send multi-ref data structure via XML-RPC"); tracker.put(o, Boolean.TRUE); sb.append(" \n"); - NativeArray na = (NativeArray)o; - for(int i=0; i\n"); - } else if (o instanceof Scriptable && !(o instanceof Undefined)) { - if (tracker.get(o) != null) throw new JavaScriptException("attempted to send multi-ref data structure via XML-RPC"); + } else if (o instanceof JS) { + if (tracker.get(o) != null) throw new JSExn("attempted to send multi-ref data structure via XML-RPC"); tracker.put(o, Boolean.TRUE); - Scriptable s = (Scriptable)o; + JS j = (JS)o; sb.append(" \n"); - Object[] ids = s.getIds(); - for(int i=0; i" + ids[i] + "\n"); - appendObject(s.get(ids[i].toString(), s), sb); + Enumeration e = j.keys(); + while(e.hasMoreElements()) { + Object key = e.nextElement(); + sb.append(" " + key + "\n"); + appendObject(j.get(key), sb); sb.append(" \n"); } sb.append(" \n"); } else { - throw new JavaScriptException("attempt to send object of type " + o.getClass().getName() + " via XML-RPC"); + throw new JSExn("attempt to send object of type " + o.getClass().getName() + " via XML-RPC"); } } - // this is synchronized in case multiple threads try to make a call on the same object... in the future, change this - // behavior to use pipelining. - public synchronized Object call(Object[] args) throws JavaScriptException, IOException { - if (Log.verbose) Log.log(this, "call to " + url + " : " + methodname); - - if (tracker == null) tracker = new Hash(); - else tracker.clear(); - if (objects == null) objects = new Vec(); - else objects.setSize(0); + // Call Sequence ////////////////////////////////////////////////////////////////////////// - HTTP http = new HTTP(url); - String content = send(args, http); - OutputStream os = new BufferedOutputStream(http.getOutputStream(content.length(), "text/xml"), 4000); - PrintWriter ps = !Log.verbose ? - new PrintWriter(os) : - new PrintWriter(new FilterWriter(new OutputStreamWriter(os)) { - public void write(int i) throws IOException { - super.write(i); - if (Log.on) Log.log(this, "send: " + ((char)i)); - } - public void write(String s, int start, int len) throws IOException { - super.write(s, start, len); - if (Log.on) Log.log(this, "send: " + s.substring(start, start + len)); - } - public void write(char[] c, int start, int len) throws IOException { - super.write(c, start, len); - if (Log.on) Log.log(this, "send: " + new String(c, start, len)); - } - }); - ps.print(content.toString()); - ps.flush(); - - BufferedReader br = !Log.verbose ? - new BufferedReader(new InputStreamReader(new Filter(http.getInputStream()))) : - new BufferedReader(new FilterReader(new InputStreamReader(new Filter(http.getInputStream()))) { - public int read() throws IOException { - int i = super.read(); - if (Log.on) Log.log(this, "recv: " + ((char)i)); - return i; - } - public int read(char[] c, int off, int len) throws IOException { - int ret = super.read(c, off, len); - if (ret == -1) return ret; - if (Log.on) Log.log(this, "recv: " + new String(c, off, ret)); - return ret; - } - }); - return recieve(br); + public final Object call(Object a0, Object a1, Object a2, Object[] rest, int nargs) throws JSExn { + JSArray args = new JSArray(); + for(int i=0; i\n"); - content.append(" \n"); - content.append(" "); - content.append(methodname); - content.append("\n"); - content.append(" \n"); - for(int i=0; i\n"); - appendObject(args[i], content); - content.append(" \n"); - } - content.append(" \n"); - content.append(" "); - return content.toString(); - } - - protected Object recieve(BufferedReader br) throws JavaScriptException, IOException { - // parse XML reply + public final Object call(final JSArray args) throws JSExn { try { - parse(br); - } catch (XML.SAXException e) { - if (Log.on) Log.log(this, "reply from server was not well-formed XML: " + e); - throw new JavaScriptException("reply from server was not well-formed XML: " + e); + final JS.UnpauseCallback callback = JS.pause(); + new java.lang.Thread() { public void run() { call(callback, args); } }.start(); + return null; // doesn't matter since we paused + } catch (NotPauseableException npe) { + throw new JSExn("cannot invoke an XML-RPC call in the foreground thread"); } - - if (fault) throw new JavaScriptException(objects.elementAt(0)); - if (objects.size() == 0) return null; - return objects.elementAt(0); } - public final Object call(Context cx, Scriptable scope, Scriptable thisObj, java.lang.Object[] args) throws JavaScriptException { - - if (!ThreadMessage.suspendThread()) return null; - + final void call(final JS.UnpauseCallback callback, final JSArray args) { try { - return call(args); - } catch (IOException se) { - if (Log.on) Log.log(this, se); - if (Log.on) Log.log(this, " at " + cx.interpreterSourceFile + ":" + cx.interpreterLine); - throw new JavaScriptException("socket exception: " + se); - - } catch (JavaScriptException jse) { - Object val = jse.getValue(); - if (val instanceof String) { - if (Log.on) Log.log(this, val.toString()); - if (Log.on) Log.log(this, " at " + cx.interpreterSourceFile + ":" + cx.interpreterLine); + if (Log.verbose) Log.info(this, "call to " + url + " : " + method); + String request = buildRequest(args); + if (Log.verbose) Log.info(this, "send:\n" + request); + InputStream is = http.POST("text/xml", request); + BufferedReader br = new BufferedReader(new InputStreamReader(is)); + if (tracker == null) tracker = new Hash(); + if (objects == null) objects = new Vec(); + try { + new Helper().parse(br); + final Object result = fault ? new JSExn(objects.elementAt(0)) : objects.size() == 0 ? null : objects.elementAt(0); + Scheduler.add(new Scheduler.Task() { public void perform() throws Exception { callback.unpause(result); }}); + } finally { + tracker.clear(); + objects.setSize(0); } - throw jse; - } finally { - ThreadMessage.resumeThread(); - } - - } - - /** When you get a property from an XMLRPC, it just returns another XMLRPC with the property name tacked onto methodname. */ - public Object get(String name, Scriptable start) { - return new XMLRPC(url, (methodname.equals("") ? "" : methodname + ".") + name); - } - - public XMLRPC(String url, String methodname) { - this.url = url; - this.methodname = methodname; - } - - - // Helper Classes /////////////////////////////////////////////////////////////////////////////////// - - /** CharArrayWriter that lets us touch its buffer */ - protected static class AccessibleCharArrayWriter extends CharArrayWriter { - public char[] getBuf() { return buf; } - public AccessibleCharArrayWriter(int i) { super(i); } - } - - /** private filter class to make sure that network transfers don't interfere with UI responsiveness */ - private static class Filter extends FilterInputStream { - public Filter(InputStream is) { super(is); } - public int read() throws IOException { - Thread.yield(); - while(MessageQueue.nonThreadEventsInQueue > 0) try { Thread.sleep(100); } catch (Exception e) { }; - return super.read(); - } - public int read(byte[] b) throws IOException { - Thread.yield(); - while(MessageQueue.nonThreadEventsInQueue > 0) try { Thread.sleep(100); } catch (Exception e) { }; - return super.read(b); - } - public int read(byte[] b, int i, int j) throws IOException { - Thread.yield(); - while(MessageQueue.nonThreadEventsInQueue > 0) try { Thread.sleep(100); } catch (Exception e) { }; - return super.read(b, i, j); + } catch (final JSExn e) { + Scheduler.add(new Scheduler.Task() { public void perform() throws Exception { callback.unpause(e); }}); + } catch (final IOException e) { + Scheduler.add(new Scheduler.Task() { public void perform() throws Exception { callback.unpause(new JSExn(e)); }}); + } catch (final XML.Exn e) { + Scheduler.add(new Scheduler.Task() { public void perform() throws Exception { callback.unpause(new JSExn(e)); }}); } } - - - // Methods Required by Rhino //////////////////////////////////////////////////////// - - public String getClassName() { return "XMLRPC"; } - public Scriptable construct(Context cx, Scriptable scope, java.lang.Object[] args) { return null; } - public void delete(String name) { } - public Scriptable getParentScope() { return null; } - public void setParentScope(Scriptable p) { } - public boolean hasInstance(Scriptable value) { return false; } - public Scriptable getPrototype() { return null; } - public void setPrototype(Scriptable p) { } - public void delete(int i) { } - public Object getDefaultValue(Class hint) { return "XML-RPC"; } - public void put(int i, Scriptable start, Object value) { } - public Object get(int i, Scriptable start) { return null; } - public void put(String name, Scriptable start, Object value) { } - public boolean has(String name, Scriptable start) { return true; } - public boolean has(int i, Scriptable start) { return false; } - public Object[] getIds() { return new Object[] { }; } - }