--- parser3/src/classes/Attic/dom.C 2001/09/07 16:51:24 1.3 +++ parser3/src/classes/Attic/dom.C 2001/09/14 15:41:59 1.20 @@ -5,7 +5,7 @@ Author: Alexander Petrosyan (http://design.ru/paf) */ -static const char *RCSId="$Id: dom.C,v 1.3 2001/09/07 16:51:24 parser Exp $"; +static const char *RCSId="$Id: dom.C,v 1.20 2001/09/14 15:41:59 parser Exp $"; #if _MSC_VER # pragma warning(disable:4291) // disable warning @@ -15,20 +15,42 @@ static const char *RCSId="$Id: dom.C,v 1 #include "classes.h" #include "pa_request.h" #include "pa_vdom.h" +#include "pa_vfile.h" +#include "pa_xslt_stylesheet_manager.h" +#include "pa_stylesheet_connection.h" +#include #include #include +#include #include +#include +#include +#include +#include +#include +#include +#include +#include // defines -#define Dom_CLASS_NAME "dom" +#define DOM_CLASS_NAME "dom" + +#define DOM_OUTPUT_METHOD_OPTION_NAME "method" +#define DOM_OUTPUT_METHOD_OPTION_VALUE_XML "xml" +#define DOM_OUTPUT_METHOD_OPTION_VALUE_HTML "html" +#define DOM_OUTPUT_METHOD_OPTION_VALUE_TEXT "text" + +#define DOM_OUTPUT_ENCODING_OPTION_NAME "encoding" + +#define DOM_OUTPUT_DEFAULT_INDENT 4 // class class MDom : public Methoded { public: // VStateless_class - Value *create_new_value(Pool& pool) { return new(pool) VDOM(pool, 0); } + Value *create_new_value(Pool& pool) { return new(pool) VDom(pool); } public: MDom(Pool& pool); @@ -39,64 +61,325 @@ public: // Methoded // methods -static void _load(Request& r, const String& method_name, MethodParams *params) { +static void _set(Request& r, const String& method_name, MethodParams *params) { Pool& pool=r.pool(); - VDOM& vDOM=*static_cast(r.self); + VDom& vDom=*static_cast(r.self); - // filename - const String& filename=params->as_string(0, "file name must not be code"); + Value& vxml=params->as_junction(0, "xml must be code"); + Temp_lang temp_lang(r, String::UL_XML); + const String& xml=r.process(vxml).as_string(); + + std::istrstream stream(xml.cstr()); + XalanParsedSource* parsedSource; + int error=vDom.get_transformer().parseSource(&stream, parsedSource); + + if(error) + PTHROW(0, 0, + &method_name, + vDom.get_transformer().getLastError()); + + // replace any previous parsed source + vDom.set_parsed_source(*parsedSource); +} + +static void _load(Request& r, const String& method_name, MethodParams *params) { + Pool& pool=r.pool(); + VDom& vDom=*static_cast(r.self); // filespec - const char *filespec=r.absolute(filename).cstr(String::UL_FILE_NAME); + const String& file_name=params->as_string(0, "file name must not be code"); + const char *filespec=r.absolute(file_name).cstr(String::UL_FILE_SPEC); -// XSLTInputSource::XSLTInputSource ( std::istream * stream ) -// XalanNode *node=inputSource.getNode(); - XSLTInputSource inputSource(filespec); XalanParsedSource* parsedSource; - int error=vDOM.getXalanTransformer().parseSource(inputSource, parsedSource); + int error=vDom.get_transformer().parseSource(filespec, parsedSource); if(error) PTHROW(0, 0, - &filename, - vDOM.getXalanTransformer().getLastError()); + &file_name, + vDom.get_transformer().getLastError()); + + // replace any previous parsed source + vDom.set_parsed_source(*parsedSource); +} + +const char *strX(const XalanDOMString& s) { + return XMLString::transcode(s.c_str()); +} - // replace any previous node value - vDOM.setParsedSource(parsedSource); +static void _throw(Pool& pool, const String *source, const XSLException& e) { + if(e.getURI().empty()) + PTHROW(0, 0, + source, + "%s (%s)", + strX(e.getMessage()), // message for exception + strX(e.getType()) // type of exception + ); + else + PTHROW(0, 0, + source, + "%s (%s) %s(%d:%d)'", + strX(e.getMessage()), // message for exception + strX(e.getType()), // type of exception + + strX(e.getURI()), // URI for the associated document, if any + e.getLineNumber(), // line number, or -1 if unknown + e.getColumnNumber() // column number, or -1 if unknown + ); +} + +class ParserStringXalanOutputStream: public XalanOutputStream { +public: + + explicit ParserStringXalanOutputStream(String& astring) : fstring(astring) {} + +protected: // XalanOutputStream + + virtual void writeData(const char *theBuffer, unsigned long theBufferLength) { + char *copy=(char *)fstring.malloc((size_t)theBufferLength); + memcpy(copy, theBuffer, (size_t)theBufferLength); + fstring.APPEND_CLEAN(copy, (size_t)theBufferLength, "dom", -1); + } + + virtual void doFlush() {} + +private: + + String& fstring; + +}; + + +void create_optioned_listener( + const char *& content_type, const char *& charset, FormatterListener *& listener, + Pool& pool, + const String& method_name, MethodParams *params, int index, Writer& writer) { + charset=0; + const String *method=0; + XalanDOMString xalan_encoding; + + Value& voptions=params->as_no_junction(index, "options must not be code"); + if(voptions.is_defined()) { + if(Hash *options=voptions.get_hash()) { + // $.method[xml|html|text] + if(Value *vmethod=static_cast(options->get(*new(pool) + String(pool, DOM_OUTPUT_METHOD_OPTION_NAME)))) + method=&vmethod->as_string(); + + // $.encoding[windows-1251|...] + if(Value *vencoding=static_cast(options->get(*new(pool) + String(pool, DOM_OUTPUT_ENCODING_OPTION_NAME)))) { + charset=vencoding->as_string().cstr(); + xalan_encoding.append(charset, strlen(charset)); + } + } else + PTHROW(0, 0, + &method_name, + "options must be hash"); + } + + if(!method/*default='xml'*/ || *method == DOM_OUTPUT_METHOD_OPTION_VALUE_XML) { + content_type="text/xml"; + listener=new FormatterToXML(writer, + XalanDOMString(), // version + true, // doIndent + DOM_OUTPUT_DEFAULT_INDENT, // indent + xalan_encoding // encoding + ); + } else if(*method == DOM_OUTPUT_METHOD_OPTION_VALUE_HTML) { + content_type="text/html"; + listener=new FormatterToHTML(writer, + xalan_encoding, // encoding + XalanDOMString(), // mediaType + XalanDOMString(), // doctypeSystem; String to be printed at the top of the document + XalanDOMString(), // doctypePublic + true, // doIndent + DOM_OUTPUT_DEFAULT_INDENT // indent + ); + } else if(*method == DOM_OUTPUT_METHOD_OPTION_VALUE_TEXT) { + content_type="text/plain"; + listener=new FormatterToText(writer, + xalan_encoding // encoding + ); + } else + PTHROW(0, 0, + method, + DOM_OUTPUT_METHOD_OPTION_NAME " option is invalid; valid methods are: " + "'" DOM_OUTPUT_METHOD_OPTION_VALUE_XML "', " + "'" DOM_OUTPUT_METHOD_OPTION_VALUE_HTML "', " + "'" DOM_OUTPUT_METHOD_OPTION_VALUE_TEXT "'"); + + // never reached } static void _save(Request& r, const String& method_name, MethodParams *params) { Pool& pool=r.pool(); - VDOM& vDOM=*static_cast(r.self); - - // filename - const String& filename=params->as_string(0, "file name must not be code"); + VDom& vDom=*static_cast(r.self); // filespec - const char *filespec=r.absolute(filename).cstr(String::UL_FILE_NAME); + const String& file_name=params->as_string(1, "file name must not be code"); + const char *filespec=r.absolute(file_name).cstr(String::UL_FILE_SPEC); - XSLTInputSource inputSource(filespec); - XalanParsedSource* parsedSource; - int error=vDOM.getXalanTransformer().parseSource(inputSource, parsedSource); + // document + XalanDocument& document=vDom.get_document(pool, &method_name); + + try { + XalanFileOutputStream stream(XalanDOMString(filespec, strlen(filespec))); + XalanOutputStreamPrintWriter writer(stream); + const char *content_type, *charset; + FormatterListener *formatterListener; + create_optioned_listener(content_type, charset, formatterListener, + pool, method_name, params, 0, writer); + FormatterTreeWalker treeWalker(*formatterListener); + treeWalker.traverse(&document); // Walk the document and produce the XML... + } catch(const XSLException& e) { + _throw(pool, &method_name, e); + } +} + +static void _string(Request& r, const String& method_name, MethodParams *params) { + Pool& pool=r.pool(); + VDom& vDom=*static_cast(r.self); + + // document + XalanDocument& document=vDom.get_document(pool, &method_name); + + try { + String parserString=*new(pool) String(pool); + ParserStringXalanOutputStream stream(parserString); + XalanOutputStreamPrintWriter writer(stream); + const char *content_type, *charset; + FormatterListener *formatterListener; + create_optioned_listener(content_type, charset, formatterListener, + pool, method_name, params, 0, writer); + FormatterTreeWalker treeWalker(*formatterListener); + treeWalker.traverse(&document); // Walk the document and produce the XML... + + // write out result + r.write_no_lang(parserString); + } catch(const XSLException& e) { + _throw(pool, &method_name, e); + } +} + +static void _file(Request& r, const String& method_name, MethodParams *params) { + Pool& pool=r.pool(); + VDom& vDom=*static_cast(r.self); + + // document + XalanDocument& document=vDom.get_document(pool, &method_name); + + try { + String& parserString=*new(pool) String(pool); + ParserStringXalanOutputStream stream(parserString); + XalanOutputStreamPrintWriter writer(stream); + const char *content_type, *charset; + FormatterListener *formatterListener; + create_optioned_listener(content_type, charset, formatterListener, + pool, method_name, params, 0, writer); + FormatterTreeWalker treeWalker(*formatterListener); + treeWalker.traverse(&document); // Walk the document and produce the XML... + + // write out result + VFile& vfile=*new(pool) VFile(pool); + const char *cstr=parserString.cstr(); + String *scontent_type=new(pool) String(pool, content_type); + Value *vcontent_type; + if(charset) { + VHash *vhcontent_type=new(pool) VHash(pool); + vhcontent_type->hash().put(*value_name, new(pool) VString(*scontent_type)); + String *scharset=new(pool) String(pool, charset); + vhcontent_type->hash().put(*new(pool) String(pool, "charset"), new(pool) VString(*scharset)); + vcontent_type=vhcontent_type; + } else + vcontent_type=new(pool) VString(*scontent_type); + vfile.set(false/*tainted*/, cstr, strlen(cstr), 0/*file_name*/, vcontent_type); + r.write_no_lang(vfile); + } catch(const XSLException& e) { + _throw(pool, &method_name, e); + } +} + + +static void add_xslt_param(const Hash::Key& aattribute, Hash::Val *ameaning, + void *info) { + XalanTransformer& transformer=*static_cast(info); + const char *attribute_cstr=aattribute.cstr(); + const char *meaning_cstr=static_cast(ameaning)->as_string().cstr(); + + transformer.setStylesheetParam( + XalanDOMString(attribute_cstr, strlen(attribute_cstr)), + XalanDOMString(meaning_cstr, strlen(meaning_cstr))); +} +static void _xslt(Request& r, const String& method_name, MethodParams *params) { + Pool& pool=r.pool(); + VDom& vDom=*static_cast(r.self); + + // params + if(params->size()>1) { + Value& vparams=params->as_no_junction(1, "transform parameters parameter must not be code"); + if(vparams.is_defined()) + if(Hash *params=vparams.get_hash()) + params->for_each(add_xslt_param, &vDom.get_transformer()); + else + PTHROW(0, 0, + &method_name, + "transform parameters parameter must be hash"); + } + + // source + XalanParsedSource &parsed_source=vDom.get_parsed_source(pool, &method_name); + + // stylesheet + const String& stylesheet_file_name=params->as_string(0, "file name must not be code"); + const String& stylesheet_filespec=r.absolute(stylesheet_file_name); + //_asm int 3; + Stylesheet_connection& connection=XSLT_stylesheet_manager->get_connection(stylesheet_filespec); + + // target + XalanDocument* target=vDom.get_parser_liaison().createDocument(); + XSLTResultTarget domResultTarget(target); + + // transform + int error=vDom.get_transformer().transform( + parsed_source, + &connection.stylesheet(), + domResultTarget); + connection.close(); if(error) PTHROW(0, 0, - &filename, - vDOM.getXalanTransformer().getLastError()); + &stylesheet_file_name, + vDom.get_transformer().getLastError()); - // replace any previous node value - vDOM.setParsedSource(parsedSource); + // write out result + VDom& result=*new(pool) VDom(pool); + result.set_document(*target); + r.write_no_lang(result); } // constructor MDom::MDom(Pool& apool) : Methoded(apool) { - set_name(*NEW String(pool(), Dom_CLASS_NAME)); + set_name(*NEW String(pool(), DOM_CLASS_NAME)); + + // ^dom::set[xml] + add_native_method("set", Method::CT_DYNAMIC, _set, 1, 1); // ^dom::load[some.xml] add_native_method("load", Method::CT_DYNAMIC, _load, 1, 1); - // ^dom.save[some.xml] - add_native_method("save", Method::CT_DYNAMIC, _save, 1, 1); + // ^dom.save[options hash;some.xml] + add_native_method("save", Method::CT_DYNAMIC, _save, 2, 2); + + // ^dom.string[options hash] + add_native_method("string", Method::CT_DYNAMIC, _string, 1, 1); + + // ^dom.file[options hash] file with "" + add_native_method("file", Method::CT_DYNAMIC, _file, 1, 1); + + // ^dom.xslt[stylesheet file_name] + // ^dom.xslt[stylesheet file_name;params hash] + add_native_method("xslt", Method::CT_DYNAMIC, _xslt, 1, 2); } // global variable @@ -111,6 +394,5 @@ Methoded *MDom_create(Pool& pool) { XMLPlatformUtils::Initialize(); XalanTransformer::initialize(); - return Dom_class=new(pool) MDom(pool); }