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-rw-r--r--storage/connect/libdoc.cpp1250
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diff --git a/storage/connect/libdoc.cpp b/storage/connect/libdoc.cpp
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+++ b/storage/connect/libdoc.cpp
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+/******************************************************************/
+/* Implementation of XML document processing using libxml2 */
+/* Author: Olivier Bertrand 2007-2016 */
+/******************************************************************/
+#include "my_global.h"
+#include <string.h>
+#include <stdio.h>
+#include <libxml/parser.h>
+#include <libxml/tree.h>
+#include <libxml/xpath.h>
+#include <libxml/xpathInternals.h>
+#include <libxml/catalog.h>
+#include <libxml/xmlschemastypes.h>
+#include <libxml/relaxng.h>
+
+#if !defined(LIBXML_TREE_ENABLED) || !defined(LIBXML_OUTPUT_ENABLED)
+#error "tree support not compiled in"
+#endif
+
+#if !defined(LIBXML_XPATH_ENABLED) || !defined(LIBXML_SAX1_ENABLED)
+#error "XPath not supported"
+#endif
+
+#include "global.h"
+#include "plgdbsem.h"
+#include "xobject.h"
+#include "libdoc.h"
+
+#include "sql_string.h"
+
+/******************************************************************/
+/* Declaration of XML document processing using libxml2 */
+/* Author: Olivier Bertrand 2007-2012 */
+/******************************************************************/
+#include "plgxml.h"
+
+typedef class LIBXMLDOC *PXDOC2;
+typedef class XML2NODE *PNODE2;
+typedef class XML2ATTR *PATTR2;
+typedef class XML2NODELIST *PLIST2;
+
+/******************************************************************/
+/* XML2 block. Must have the same layout than FBLOCK up to Type. */
+/******************************************************************/
+typedef struct _x2block { /* Loaded XML file block */
+ struct _x2block *Next;
+ LPCSTR Fname; /* Point on file name */
+ size_t Length; /* Used to tell if read mode */
+ short Count; /* Nb of times file is used */
+ short Type; /* TYPE_FB_XML */
+ int Retcode; /* Return code from Load */
+ xmlDocPtr Docp; /* Document interface pointer */
+ } X2BLOCK, *PX2BLOCK;
+
+/******************************************************************/
+/* Declaration of libxml2 document. */
+/******************************************************************/
+class LIBXMLDOC : public XMLDOCUMENT {
+ friend class XML2NODE;
+ friend class XML2ATTR;
+ public:
+ // Constructor
+ LIBXMLDOC(char *nsl, char *nsdf, char *enc, PFBLOCK fp);
+
+ // Properties
+ virtual short GetDocType(void) {return TYPE_FB_XML2;}
+ virtual void *GetDocPtr(void) {return Docp;}
+ virtual void SetNofree(bool b) {Nofreelist = b;}
+
+ // Methods
+ virtual bool Initialize(PGLOBAL g, PCSZ entry, bool zipped);
+ virtual bool ParseFile(PGLOBAL g, char *fn);
+ virtual bool NewDoc(PGLOBAL g, PCSZ ver);
+ virtual void AddComment(PGLOBAL g, char *com);
+ virtual PXNODE GetRoot(PGLOBAL g);
+ virtual PXNODE NewRoot(PGLOBAL g, char *name);
+ virtual PXNODE NewPnode(PGLOBAL g, char *name);
+ virtual PXATTR NewPattr(PGLOBAL g);
+ virtual PXLIST NewPlist(PGLOBAL g);
+ virtual int DumpDoc(PGLOBAL g, char *ofn);
+ virtual void CloseDoc(PGLOBAL g, PFBLOCK xp);
+ virtual PFBLOCK LinkXblock(PGLOBAL g, MODE m, int rc, char *fn);
+
+ protected:
+// bool CheckDocument(FILE *of, xmlNodePtr np);
+ xmlNodeSetPtr GetNodeList(PGLOBAL g, xmlNodePtr np, char *xp);
+ int Decode(xmlChar *cnt, char *buf, int n);
+ xmlChar *Encode(PGLOBAL g, char *txt);
+
+ // Members
+ xmlDocPtr Docp;
+ xmlNodeSetPtr Nlist;
+ xmlXPathContextPtr Ctxp;
+ xmlXPathObjectPtr Xop;
+ xmlXPathObjectPtr NlXop;
+ xmlErrorPtr Xerr;
+ char *Buf; // Temporary
+ bool Nofreelist;
+}; // end of class LIBXMLDOC
+
+/******************************************************************/
+/* Declaration of libxml2 node. */
+/******************************************************************/
+class XML2NODE : public XMLNODE {
+ friend class LIBXMLDOC;
+ friend class XML2NODELIST;
+ public:
+ // Properties
+ virtual char *GetName(PGLOBAL g) {return (char*)Nodep->name;}
+ virtual int GetType(void);
+ virtual PXNODE GetNext(PGLOBAL g);
+ virtual PXNODE GetChild(PGLOBAL g);
+
+ // Methods
+ virtual RCODE GetContent(PGLOBAL g, char *buf, int len);
+ virtual bool SetContent(PGLOBAL g, char *txtp, int len);
+ virtual PXNODE Clone(PGLOBAL g, PXNODE np);
+ virtual PXLIST GetChildElements(PGLOBAL g, char *xp, PXLIST lp);
+ virtual PXLIST SelectNodes(PGLOBAL g, char *xp, PXLIST lp);
+ virtual PXNODE SelectSingleNode(PGLOBAL g, char *xp, PXNODE np);
+ virtual PXATTR GetAttribute(PGLOBAL g, char *name, PXATTR ap);
+ virtual PXNODE AddChildNode(PGLOBAL g, PCSZ name, PXNODE np);
+ virtual PXATTR AddProperty(PGLOBAL g, char *name, PXATTR ap);
+ virtual void AddText(PGLOBAL g, PCSZ txtp);
+ virtual void DeleteChild(PGLOBAL g, PXNODE dnp);
+
+ protected:
+ // Constructor
+ XML2NODE(PXDOC dp, xmlNodePtr np);
+
+ // Members
+ xmlDocPtr Docp;
+ xmlChar *Content;
+ xmlNodePtr Nodep;
+}; // end of class XML2NODE
+
+/******************************************************************/
+/* Declaration of libxml2 node list. */
+/******************************************************************/
+class XML2NODELIST : public XMLNODELIST {
+ friend class LIBXMLDOC;
+ friend class XML2NODE;
+ public:
+ // Methods
+ virtual int GetLength(void);
+ virtual PXNODE GetItem(PGLOBAL g, int n, PXNODE np);
+ virtual bool DropItem(PGLOBAL g, int n);
+
+ protected:
+ // Constructor
+ XML2NODELIST(PXDOC dp, xmlNodeSetPtr lp);
+
+ // Members
+ xmlNodeSetPtr Listp;
+}; // end of class XML2NODELIST
+
+/******************************************************************/
+/* Declaration of libxml2 attribute. */
+/******************************************************************/
+class XML2ATTR : public XMLATTRIBUTE {
+ friend class LIBXMLDOC;
+ friend class XML2NODE;
+ public:
+ // Properties
+ virtual char *GetName(PGLOBAL g) {return (char*)Atrp->name;}
+ virtual PXATTR GetNext(PGLOBAL g);
+
+ // Methods
+ virtual RCODE GetText(PGLOBAL g, char *bufp, int len);
+ virtual bool SetText(PGLOBAL g, char *txtp, int len);
+
+ protected:
+ // Constructor
+ XML2ATTR(PXDOC dp, xmlAttrPtr ap, xmlNodePtr np);
+
+ // Members
+ xmlAttrPtr Atrp;
+ xmlNodePtr Parent;
+}; // end of class XML2ATTR
+
+
+
+extern "C" {
+extern char version[];
+} // "C"
+
+#if defined(MEMORY_TRACE)
+static int m = 0;
+static char s[500];
+/**************************************************************************/
+/* Tracing output function. */
+/**************************************************************************/
+void xtrc(char const *fmt, ...)
+ {
+ va_list ap;
+ va_start (ap, fmt);
+ ;
+//vfprintf(stderr, fmt, ap);
+ vsprintf(s, fmt, ap);
+ if (s[strlen(s)-1] == '\n')
+ s[strlen(s)-1] = 0;
+ va_end (ap);
+ } // end of htrc
+
+static xmlFreeFunc Free;
+static xmlMallocFunc Malloc;
+static xmlMallocFunc MallocA;
+static xmlReallocFunc Realloc;
+static xmlStrdupFunc Strdup;
+
+void xmlMyFree(void *mem)
+{
+ if (trace(1)) {
+ htrc("%.4d Freeing at %p %-.256s\n", ++m, mem, s);
+ *s = 0;
+ } // endif trace
+ Free(mem);
+} // end of xmlMyFree
+
+void *xmlMyMalloc(size_t size)
+{
+ void *p = Malloc(size);
+ if (trace(1)) {
+ htrc("%.4d Allocating %.5d at %p %-.256s\n", ++m, size, p, s);
+ *s = 0;
+ } // endif trace
+ return p;
+} // end of xmlMyMalloc
+
+void *xmlMyMallocAtomic(size_t size)
+{
+ void *p = MallocA(size);
+ if (trace(1)) {
+ htrc("%.4d Atom alloc %.5d at %p %-.256s\n", ++m, size, p, s);
+ *s = 0;
+ } // endif trace
+ return p;
+} // end of xmlMyMallocAtomic
+
+void *xmlMyRealloc(void *mem, size_t size)
+{
+ void *p = Realloc(mem, size);
+ if (trace(1)) {
+ htrc("%.4d ReAlloc %.5d to %p from %p %-.256s\n", ++m, size, p, mem, s);
+ *s = 0;
+ } // endif trace
+ return p;
+} // end of xmlMyRealloc
+
+char *xmlMyStrdup(const char *str)
+{
+ char *p = Strdup(str);
+ if (trace(1)) {
+ htrc("%.4d Duplicating to %p from %p %-.256s %-.256s\n", ++m, p, str, str, s);
+ *s = 0;
+ } // endif trace
+ return p;
+} // end of xmlMyStrdup
+#define htrc xtrc
+#endif // MEMORY_TRACE
+
+/******************************************************************/
+/* Return a LIBXMLDOC as a XMLDOC. */
+/******************************************************************/
+PXDOC GetLibxmlDoc(PGLOBAL g, char *nsl, char *nsdf,
+ char *enc, PFBLOCK fp)
+ {
+ return (PXDOC) new(g) LIBXMLDOC(nsl, nsdf, enc, fp);
+ } // end of GetLibxmlDoc
+
+/******************************************************************/
+/* XML library initialization function. */
+/******************************************************************/
+void XmlInitParserLib(void)
+ {
+#if defined(MEMORY_TRACE)
+int rc = xmlGcMemGet(&Free, &Malloc, &MallocA, &Realloc, &Strdup);
+
+if (!rc)
+ rc = xmlGcMemSetup(xmlMyFree,
+ xmlMyMalloc,
+ xmlMyMallocAtomic,
+ xmlMyRealloc,
+ xmlMyStrdup);
+
+#endif // MEMORY_TRACE
+ xmlInitParser();
+ } // end of XmlInitParserLib
+
+/******************************************************************/
+/* XML library cleanup function. */
+/******************************************************************/
+void XmlCleanupParserLib(void)
+ {
+ } // end of XmlCleanupParserLib
+
+/******************************************************************/
+/* Close a loaded libxml2 XML file. */
+/******************************************************************/
+void CloseXML2File(PGLOBAL g, PFBLOCK fp, bool all)
+ {
+ PX2BLOCK xp = (PX2BLOCK)fp;
+
+ if (trace(1))
+ htrc("CloseXML2File: xp=%p count=%d\n", xp, (xp) ? xp->Count : 0);
+
+ if (xp && xp->Count > 1 && !all) {
+ xp->Count--;
+ } else if (xp && xp->Count > 0) {
+ xmlFreeDoc(xp->Docp);
+ xp->Count = 0;
+ } // endif
+
+ } // end of CloseXML2File
+
+/* ---------------------- class LIBXMLDOC ----------------------- */
+
+/******************************************************************/
+/* LIBXMLDOC constructor. */
+/******************************************************************/
+LIBXMLDOC::LIBXMLDOC(char *nsl, char *nsdf, char *enc, PFBLOCK fp)
+ : XMLDOCUMENT(nsl, nsdf, enc)
+ {
+ assert (!fp || fp->Type == TYPE_FB_XML2);
+ Docp = (fp) ? ((PX2BLOCK)fp)->Docp : NULL;
+ Nlist = NULL;
+ Ctxp = NULL;
+ Xop = NULL;
+ NlXop = NULL;
+ Xerr = NULL;
+ Buf = NULL;
+ Nofreelist = false;
+ } // end of LIBXMLDOC constructor
+
+/******************************************************************/
+/* Initialize XML parser and check library compatibility. */
+/******************************************************************/
+bool LIBXMLDOC::Initialize(PGLOBAL g, PCSZ entry, bool zipped)
+{
+ if (zipped && InitZip(g, entry))
+ return true;
+
+ xmlKeepBlanksDefault(1);
+ return MakeNSlist(g);
+} // end of Initialize
+
+/******************************************************************/
+/* Parse the XML file and construct node tree in memory. */
+/******************************************************************/
+bool LIBXMLDOC::ParseFile(PGLOBAL g, char *fn)
+ {
+ if (trace(1))
+ htrc("ParseFile\n");
+
+ if (zip) {
+ // Parse an in memory document
+ char *xdoc = GetMemDoc(g, fn);
+
+ Docp = (xdoc) ? xmlParseDoc((const xmlChar *)xdoc) : NULL;
+ } else
+ Docp = xmlParseFile(fn);
+
+ if (Docp) {
+ if (Docp->encoding)
+ Encoding = (char*)Docp->encoding;
+
+ return false;
+ } else if ((Xerr = xmlGetLastError()))
+ xmlResetError(Xerr);
+
+ return true;
+ } // end of ParseFile
+
+/******************************************************************/
+/* Create or reuse an Xblock for this document. */
+/******************************************************************/
+PFBLOCK LIBXMLDOC::LinkXblock(PGLOBAL g, MODE m, int rc, char *fn)
+ {
+ PDBUSER dup = (PDBUSER)g->Activityp->Aptr;
+ PX2BLOCK xp = (PX2BLOCK)PlugSubAlloc(g, NULL, sizeof(X2BLOCK));
+
+ memset(xp, 0, sizeof(X2BLOCK));
+ xp->Next = (PX2BLOCK)dup->Openlist;
+ dup->Openlist = (PFBLOCK)xp;
+ xp->Type = TYPE_FB_XML2;
+ xp->Fname = (LPCSTR)PlugDup(g, fn);
+ xp->Count = 1;
+ xp->Length = (m == MODE_READ) ? 1 : 0;
+ xp->Retcode = rc;
+ xp->Docp = Docp;
+
+ // Return xp as a fp
+ return (PFBLOCK)xp;
+ } // end of LinkXblock
+
+/******************************************************************/
+/* Construct and add the XML processing instruction node. */
+/******************************************************************/
+bool LIBXMLDOC::NewDoc(PGLOBAL g, PCSZ ver)
+ {
+ if (trace(1))
+ htrc("NewDoc\n");
+
+ return ((Docp = xmlNewDoc(BAD_CAST ver)) == NULL);
+ } // end of NewDoc
+
+/******************************************************************/
+/* Add a new comment node to the document. */
+/******************************************************************/
+void LIBXMLDOC::AddComment(PGLOBAL g, char *txtp)
+ {
+ if (trace(1))
+ htrc("AddComment: %-.256s\n", txtp);
+
+ xmlNodePtr cp = xmlNewDocComment(Docp, BAD_CAST txtp);
+ xmlAddChild((xmlNodePtr)Docp, cp);
+ } // end of AddText
+
+/******************************************************************/
+/* Return the node class of the root of the document. */
+/******************************************************************/
+PXNODE LIBXMLDOC::GetRoot(PGLOBAL g)
+ {
+ if (trace(1))
+ htrc("GetRoot\n");
+
+ xmlNodePtr root = xmlDocGetRootElement(Docp);
+
+ if (!root)
+ return NULL;
+
+ return new(g) XML2NODE(this, root);
+ } // end of GetRoot
+
+/******************************************************************/
+/* Create a new root element and return its class node. */
+/******************************************************************/
+PXNODE LIBXMLDOC::NewRoot(PGLOBAL g, char *name)
+ {
+ if (trace(1))
+ htrc("NewRoot: %-.256s\n", name);
+
+ xmlNodePtr root = xmlNewDocNode(Docp, NULL, BAD_CAST name, NULL);
+
+ if (root) {
+ xmlDocSetRootElement(Docp, root);
+ return new(g) XML2NODE(this, root);
+ } else
+ return NULL;
+
+ } // end of NewRoot
+
+/******************************************************************/
+/* Return a void XML2NODE node class. */
+/******************************************************************/
+PXNODE LIBXMLDOC::NewPnode(PGLOBAL g, char *name)
+ {
+ if (trace(1))
+ htrc("NewNode: %-.256s\n", name);
+
+ xmlNodePtr nop;
+
+ if (name) {
+ nop = xmlNewDocNode(Docp, NULL, BAD_CAST name, NULL);
+
+ if (nop == NULL)
+ return NULL;
+
+ } else
+ nop = NULL;
+
+ return new(g) XML2NODE(this, nop);
+ } // end of NewPnode
+
+/******************************************************************/
+/* Return a void XML2ATTR node class. */
+/******************************************************************/
+PXATTR LIBXMLDOC::NewPattr(PGLOBAL g)
+ {
+ return new(g) XML2ATTR(this, NULL, NULL);
+ } // end of NewPattr
+
+/******************************************************************/
+/* Return a void XML2ATTR node class. */
+/******************************************************************/
+PXLIST LIBXMLDOC::NewPlist(PGLOBAL g)
+ {
+ return new(g) XML2NODELIST(this, NULL);
+ } // end of NewPlist
+
+/******************************************************************/
+/* Dump the node tree to a new XML file. */
+/******************************************************************/
+int LIBXMLDOC::DumpDoc(PGLOBAL g, char *ofn)
+ {
+ int rc = 0;
+ FILE *of;
+
+ if (trace(1))
+ htrc("DumpDoc: %-.256s\n", ofn);
+
+ if (!(of= global_fopen(g, MSGID_CANNOT_OPEN, ofn, "w")))
+ return -1;
+
+#if 1
+ // This function does not crash (
+ if (xmlSaveFormatFileEnc((const char *)ofn, Docp, Encoding, 0) < 0) {
+ xmlErrorPtr err = xmlGetLastError();
+ strcpy(g->Message, (err) ? err->message : "Error saving XML doc");
+ xmlResetError(Xerr);
+ rc = -1;
+ } // endif Save
+// rc = xmlDocDump(of, Docp);
+#else // 0
+ // Until this function is fixed, do the job ourself
+ xmlNodePtr Rootp;
+
+ // Save the modified document
+ fprintf(of, "<?xml version=\"1.0\" encoding=\"%-.256s\"?>\n", Encoding);
+ fprintf(of, "<!-- Created by CONNECT %-.256s -->\n", version);
+
+ if (!(Rootp = xmlDocGetRootElement(Docp)))
+ return 1;
+
+ Buf = (char*)PlugSubAlloc(g, NULL, 1024);
+ rc = iconv_close(Cd2);
+ Cd2 = iconv_open(Encoding, "UTF-8");
+ rc = CheckDocument(of, Rootp);
+#endif // 0
+
+ fclose(of);
+ return rc;
+ } // end of Dump
+
+/******************************************************************/
+/* Free the document, cleanup the XML library, and */
+/* debug memory for regression tests. */
+/******************************************************************/
+void LIBXMLDOC::CloseDoc(PGLOBAL g, PFBLOCK xp)
+ {
+ if (trace(1))
+ htrc("CloseDoc: xp=%p count=%d\n", xp, (xp) ? xp->Count : 0);
+
+//if (xp && xp->Count == 1) {
+ if (xp) {
+ if (Nlist) {
+ xmlXPathFreeNodeSet(Nlist);
+
+ if ((Xerr = xmlGetLastError()))
+ xmlResetError(Xerr);
+
+ Nlist = NULL;
+ } // endif Nlist
+
+ if (Xop) {
+ xmlXPathFreeObject(Xop);
+
+ if ((Xerr = xmlGetLastError()))
+ xmlResetError(Xerr);
+
+ Xop = NULL;
+ } // endif Xop
+
+ if (NlXop) {
+ xmlXPathFreeObject(NlXop);
+
+ if ((Xerr = xmlGetLastError()))
+ xmlResetError(Xerr);
+
+ NlXop = NULL;
+ } // endif NlXop
+
+ if (Ctxp) {
+ xmlXPathFreeContext(Ctxp);
+
+ if ((Xerr = xmlGetLastError()))
+ xmlResetError(Xerr);
+
+ Ctxp = NULL;
+ } // endif Ctxp
+
+ } // endif xp
+
+ CloseXML2File(g, xp, false);
+ CloseZip();
+ } // end of Close
+
+/******************************************************************/
+/* Evaluate the passed Xpath from the passed context node. */
+/******************************************************************/
+xmlNodeSetPtr LIBXMLDOC::GetNodeList(PGLOBAL g, xmlNodePtr np, char *xp)
+ {
+ xmlNodeSetPtr nl;
+
+ if (trace(1))
+ htrc("GetNodeList: %-.256s np=%p\n", xp, np);
+
+ if (!Ctxp) {
+ // Init Xpath
+ if (trace(1))
+ htrc("Calling xmlPathInit\n");
+
+ xmlInitParser();
+
+ if (trace(1))
+ htrc("Calling xmlXPathNewContext Docp=%p\n", Docp);
+
+ // Create xpath evaluation context
+ if (!(Ctxp = xmlXPathNewContext(Docp))) {
+ strcpy(g->Message, MSG(XPATH_CNTX_ERR));
+
+ if (trace(1))
+ htrc("Context error: %-.256s\n", g->Message);
+
+ return NULL;
+ } // endif xpathCtx
+
+ // Register namespaces from list (if any)
+ for (PNS nsp = Namespaces; nsp; nsp = nsp->Next) {
+ if (trace(1))
+ htrc("Calling xmlXPathRegisterNs Prefix=%-.256s Uri=%-.512s\n",
+ nsp->Prefix, nsp->Uri);
+
+ if (xmlXPathRegisterNs(Ctxp, BAD_CAST nsp->Prefix,
+ BAD_CAST nsp->Uri)) {
+ snprintf(g->Message, sizeof(g->Message), MSG(REGISTER_ERR), nsp->Prefix, nsp->Uri);
+
+ if (trace(1))
+ htrc("Ns error: %-.256s\n", g->Message);
+
+ return NULL;
+ } // endif Registering
+
+ } // endfor nsp
+
+ } // endif Ctxp
+
+ if (Xop) {
+ if (trace(1))
+ htrc("Calling xmlXPathFreeNodeSetList Xop=%p NOFREE=%d\n",
+ Xop, Nofreelist);
+
+ if (Nofreelist) {
+ // Making Nlist that must not be freed yet
+// xmlXPathFreeNodeSetList(Xop); // Caused memory leak
+ assert(!NlXop);
+ NlXop = Xop; // Freed on closing
+ Nofreelist = false;
+ } else
+ xmlXPathFreeObject(Xop); // Caused node not found
+
+ if ((Xerr = xmlGetLastError())) {
+ strcpy(g->Message, Xerr->message);
+ xmlResetError(Xerr);
+ return NULL;
+ } // endif Xerr
+
+ } // endif Xop
+
+ // Set the context to the calling node
+ Ctxp->node = np;
+
+ if (trace(1))
+ htrc("Calling xmlXPathEval %-.256s Ctxp=%p\n", xp, Ctxp);
+
+ // Evaluate table xpath
+ if (!(Xop = xmlXPathEval(BAD_CAST xp, Ctxp))) {
+ snprintf(g->Message, sizeof(g->Message), MSG(XPATH_EVAL_ERR), xp);
+
+ if (trace(1))
+ htrc("Path error: %-.256s\n", g->Message);
+
+ return NULL;
+ } else
+ nl = Xop->nodesetval;
+
+ if (trace(1))
+ htrc("GetNodeList nl=%p n=%p\n", nl, (nl) ? nl->nodeNr : 0);
+
+ return nl;
+ } // end of GetNodeList
+
+#if 0 // Not used anymore
+/******************************************************************/
+/* CheckDocument: check if the document is ok to dump. */
+/* Currently this does the dumping of the document. */
+/******************************************************************/
+bool LIBXMLDOC::CheckDocument(FILE *of, xmlNodePtr np)
+ {
+ int n;
+ bool b;
+
+ if (!np)
+ return true;
+
+ if (np->type == XML_ELEMENT_NODE) {
+ n = fprintf(of, "<%s", np->name);
+ b = CheckDocument(of, (xmlNodePtr)np->properties);
+
+ if (np->children)
+ n = fprintf(of, ">");
+ else
+ n = fprintf(of, "/>");
+
+ } else if (np->type == XML_ATTRIBUTE_NODE)
+ n = fprintf(of, " %s=\"", np->name);
+ else if (np->type == XML_TEXT_NODE)
+ n = fprintf(of, "%s", Encode(NULL, (char*)np->content));
+ else if (np->type == XML_COMMENT_NODE)
+ n = fprintf(of, "%s", Encode(NULL, (char*)np->content));
+
+ b = CheckDocument(of, np->children);
+
+ if (np->type == XML_ATTRIBUTE_NODE)
+ n = fprintf(of, "\"");
+ else if (!b && np->type == XML_ELEMENT_NODE)
+ n = fprintf(of, "</%s>", np->name);
+
+ b = CheckDocument(of, np->next);
+ return false;
+ } // end of CheckDocument
+
+/******************************************************************/
+/* Convert node or attribute content to latin characters. */
+/******************************************************************/
+int LIBXMLDOC::Decode(xmlChar *cnt, char *buf, int n)
+ {
+ const char *txt = (const char *)cnt;
+ uint dummy_errors;
+ uint32 len= copy_and_convert(buf, n, &my_charset_utf8mb3_general_ci, txt,
+ strlen(txt), &my_charset_utf8mb3_general_ci,
+ &dummy_errors);
+ buf[len]= '\0';
+ return 0;
+ } // end of Decode
+
+/******************************************************************/
+/* Convert node or attribute content to latin characters. */
+/******************************************************************/
+xmlChar *LIBXMLDOC::Encode(PGLOBAL g, char *txt)
+ {
+ const CHARSET_INFO *ics= &my_charset_utf8mb3_general_ci;
+ const CHARSET_INFO *ocs= &my_charset_utf8mb3_general_ci;
+ size_t i = strlen(txt);
+ size_t o = i * ocs->mbmaxlen / ics->mbmaxlen + 1;
+ char *buf;
+ if (g) {
+ buf = (char*)PlugSubAlloc(g, NULL, o);
+ } else {
+ o = 1024;
+ buf = Buf;
+ } // endif g
+ uint dummy_errors;
+ uint32 len= copy_and_convert(buf, o, ocs,
+ txt, i, ics,
+ &dummy_errors);
+ buf[len]= '\0';
+ return BAD_CAST buf;
+ } // end of Encode
+#endif // 0
+
+/* ---------------------- class XML2NODE ------------------------ */
+
+/******************************************************************/
+/* XML2NODE constructor. */
+/******************************************************************/
+XML2NODE::XML2NODE(PXDOC dp, xmlNodePtr np) : XMLNODE(dp)
+ {
+ Docp = ((PXDOC2)dp)->Docp;
+ Content = NULL;
+ Nodep = np;
+ } // end of XML2NODE constructor
+
+int XML2NODE::GetType(void)
+ {
+ if (trace(1))
+ htrc("GetType type=%d\n", Nodep->type);
+
+ return Nodep->type;
+ } // end of GetType
+
+/******************************************************************/
+/* Return the node class of next sibling of the node. */
+/******************************************************************/
+PXNODE XML2NODE::GetNext(PGLOBAL g)
+ {
+ if (trace(1))
+ htrc("GetNext\n");
+
+ if (!Nodep->next)
+ Next = NULL;
+ else // if (!Next)
+ Next = new(g) XML2NODE(Doc, Nodep->next);
+
+ return Next;
+ } // end of GetNext
+
+/******************************************************************/
+/* Return the node class of first children of the node. */
+/******************************************************************/
+PXNODE XML2NODE::GetChild(PGLOBAL g)
+ {
+ if (trace(1))
+ htrc("GetChild\n");
+
+ if (!Nodep->children)
+ Children = NULL;
+ else // if (!Children)
+ Children = new(g) XML2NODE(Doc, Nodep->children);
+
+ return Children;
+ } // end of GetChild
+
+/******************************************************************/
+/* Return the content of a node and subnodes. */
+/******************************************************************/
+RCODE XML2NODE::GetContent(PGLOBAL g, char *buf, int len)
+ {
+ RCODE rc = RC_OK;
+
+ if (trace(1))
+ htrc("GetContent\n");
+
+ if (Content)
+ xmlFree(Content);
+
+ if ((Content = xmlNodeGetContent(Nodep))) {
+ char *p1 = (char*)Content, *p2 = buf;
+ bool b = false;
+
+ // Copy content eliminating extra characters
+ for (; *p1; p1++)
+ if ((p2 - buf) < len) {
+ if (strchr(" \t\r\n", *p1)) {
+ if (b) {
+ // This to have one blank between sub-nodes
+ *p2++ = ' ';
+ b = false;
+ } // endif b
+
+ } else {
+ *p2++ = *p1;
+ b = true;
+ } // endif p1
+
+ } else {
+ snprintf(g->Message, sizeof(g->Message), "Truncated %-.256s content", Nodep->name);
+ rc = RC_INFO;
+ } // endif len
+
+ *p2 = 0;
+
+ if (trace(1))
+ htrc("GetText buf='%-.256s' len=%d\n", buf, len);
+
+ xmlFree(Content);
+ Content = NULL;
+ } else
+ *buf = '\0';
+
+ if (trace(1))
+ htrc("GetContent: %-.256s\n", buf);
+
+ return rc;
+ } // end of GetContent
+
+/******************************************************************/
+/* Set the content of a node. */
+/******************************************************************/
+bool XML2NODE::SetContent(PGLOBAL g, char *txtp, int len)
+ {
+ if (trace(1))
+ htrc("SetContent: %-.256s\n", txtp);
+
+ xmlChar *buf = xmlEncodeEntitiesReentrant(Docp, BAD_CAST txtp);
+
+ if (trace(1))
+ htrc("SetContent: %-.256s -> %-.256s\n", txtp, buf);
+
+ xmlNodeSetContent(Nodep, buf);
+ xmlFree(buf);
+ return false;
+ } // end of SetContent
+
+/******************************************************************/
+/* Return a clone of this node. */
+/******************************************************************/
+PXNODE XML2NODE::Clone(PGLOBAL g, PXNODE np)
+ {
+ if (trace(1))
+ htrc("Clone: np=%p\n", np);
+
+ if (np) {
+ ((PNODE2)np)->Nodep = Nodep;
+ return np;
+ } else
+ return new(g) XML2NODE(Doc, Nodep);
+
+ } // end of Clone
+
+/******************************************************************/
+/* Return the list of all or matching children that are elements.*/
+/******************************************************************/
+PXLIST XML2NODE::GetChildElements(PGLOBAL g, char *xp, PXLIST lp)
+ {
+ if (trace(1))
+ htrc("GetChildElements: %-.256s\n", xp);
+
+ return SelectNodes(g, (xp) ? xp : (char*)"*", lp);
+ } // end of GetChildElements
+
+/******************************************************************/
+/* Return the list of nodes verifying the passed Xpath. */
+/******************************************************************/
+PXLIST XML2NODE::SelectNodes(PGLOBAL g, char *xp, PXLIST lp)
+ {
+ if (trace(1))
+ htrc("SelectNodes: %-.256s\n", xp);
+
+ xmlNodeSetPtr nl = ((PXDOC2)Doc)->GetNodeList(g, Nodep, xp);
+
+ if (lp) {
+ ((PLIST2)lp)->Listp = nl;
+ return lp;
+ } else
+ return new(g) XML2NODELIST(Doc, nl);
+
+ } // end of SelectNodes
+
+/******************************************************************/
+/* Return the first node verifying the passed Xapth. */
+/******************************************************************/
+PXNODE XML2NODE::SelectSingleNode(PGLOBAL g, char *xp, PXNODE np)
+ {
+ if (trace(1))
+ htrc("SelectSingleNode: %-.256s\n", xp);
+
+ xmlNodeSetPtr nl = ((PXDOC2)Doc)->GetNodeList(g, Nodep, xp);
+
+ if (nl && nl->nodeNr) {
+ if (np) {
+ ((PNODE2)np)->Nodep = nl->nodeTab[0];
+ return np;
+ } else
+ return new(g) XML2NODE(Doc, nl->nodeTab[0]);
+
+ } else
+ return NULL;
+
+ } // end of SelectSingleNode
+
+/******************************************************************/
+/* Return the node attribute with the specified name. */
+/******************************************************************/
+PXATTR XML2NODE::GetAttribute(PGLOBAL g, char *name, PXATTR ap)
+ {
+ xmlAttrPtr atp;
+
+ if (trace(1))
+ htrc("GetAttribute: %-.256s\n", SVP(name));
+
+ if (name)
+ atp = xmlHasProp(Nodep, BAD_CAST name);
+ else
+ atp = Nodep->properties;
+
+
+ if (atp) {
+ if (ap) {
+ ((PATTR2)ap)->Atrp = atp;
+ ((PATTR2)ap)->Parent = Nodep;
+ return ap;
+ } else
+ return new(g) XML2ATTR(Doc, atp, Nodep);
+
+ } else
+ return NULL;
+
+ } // end of GetAttribute
+
+/******************************************************************/
+/* Add a new child node to this node and return it. */
+/******************************************************************/
+PXNODE XML2NODE::AddChildNode(PGLOBAL g, PCSZ name, PXNODE np)
+ {
+ char *p, *pn, *pf = NULL, *nmp = PlugDup(g, name);
+
+ if (trace(1))
+ htrc("AddChildNode: %-.256s\n", name);
+
+ // Is a prefix specified
+ if ((pn = strchr(nmp, ':'))) {
+ pf = nmp;
+ *pn++ = '\0'; // Separate name from prefix
+ } else
+ pn = nmp;
+
+ // If name has the format m[n] only m is taken as node name
+ if ((p = strchr(pn, '[')))
+ p = BufAlloc(g, pn, int(p - pn));
+ else
+ p = pn;
+
+ xmlNodePtr nop = xmlNewChild(Nodep, NULL, BAD_CAST p, NULL);
+
+ if (!nop)
+ return NULL;
+
+ if (pf) {
+ // Prefixed name, is it the default NS prefix?
+ if (Doc->DefNs && !strcmp(pf, Doc->DefNs))
+ pf = NULL; // Default namespace
+
+ xmlNsPtr nsp = xmlSearchNs(Docp, nop, BAD_CAST pf);
+
+ if (!nsp)
+ nsp = xmlNewNs(nop, NULL, BAD_CAST pf);
+
+ // Set node namespace
+ nop->ns = nsp;
+ *(--p) = ':'; // Restore Xname
+ } else if (Doc->DefNs && xmlSearchNs(Docp, nop, NULL))
+ // Not in default namespace
+ nop->ns = xmlNewNs(nop, BAD_CAST "", NULL);
+
+ if (np)
+ ((PNODE2)np)->Nodep = nop;
+ else
+ np = new(g) XML2NODE(Doc, nop);
+
+ return NewChild(np);
+ } // end of AddChildNode
+
+/******************************************************************/
+/* Add a new property to this node and return it. */
+/******************************************************************/
+PXATTR XML2NODE::AddProperty(PGLOBAL g, char *name, PXATTR ap)
+ {
+ if (trace(1))
+ htrc("AddProperty: %-.256s\n", name);
+
+ xmlAttrPtr atp = xmlNewProp(Nodep, BAD_CAST name, NULL);
+
+ if (atp) {
+ if (ap) {
+ ((PATTR2)ap)->Atrp = atp;
+ ((PATTR2)ap)->Parent = Nodep;
+ return ap;
+ } else
+ return new(g) XML2ATTR(Doc, atp, Nodep);
+
+ } else
+ return NULL;
+
+ } // end of AddProperty
+
+/******************************************************************/
+/* Add a new text node to this node. */
+/******************************************************************/
+void XML2NODE::AddText(PGLOBAL g, PCSZ txtp)
+ {
+ if (trace(1))
+ htrc("AddText: %-.256s\n", txtp);
+
+ // This is to avoid a blank line when inserting a new line
+ xmlNodePtr np = xmlGetLastChild(Nodep);
+
+ if (np && np->type == XML_TEXT_NODE) {
+ xmlUnlinkNode(np);
+ xmlFreeNode(np);
+ } // endif type
+
+ // Add the new text
+ xmlAddChild(Nodep, xmlNewText(BAD_CAST txtp));
+ } // end of AddText
+
+/******************************************************************/
+/* Remove a child node from this node. */
+/******************************************************************/
+void XML2NODE::DeleteChild(PGLOBAL g, PXNODE dnp)
+ {
+ xmlErrorPtr xerr;
+
+ if (trace(1))
+ htrc("DeleteChild: node=%p\n", dnp);
+
+ xmlNodePtr np = ((PNODE2)dnp)->Nodep;
+ xmlNodePtr text = np->next;
+
+ // This is specific to row nodes
+ if (text && text->type == XML_TEXT_NODE) {
+ xmlUnlinkNode(text);
+
+ if ((xerr = xmlGetLastError()))
+ goto err;
+
+ xmlFreeNode(text);
+
+ if ((xerr = xmlGetLastError()))
+ goto err;
+
+ } // endif type
+
+ xmlUnlinkNode(np);
+
+ if ((xerr = xmlGetLastError()))
+ goto err;
+
+ xmlFreeNode(np);
+
+ if ((xerr = xmlGetLastError()))
+ goto err;
+
+ Delete(dnp);
+
+ if ((xerr = xmlGetLastError()))
+ goto err;
+
+ return;
+
+err:
+ if (trace(1))
+ htrc("DeleteChild: errmsg=%-.256s\n", xerr->message);
+
+ xmlResetError(xerr);
+ } // end of DeleteChild
+
+/* -------------------- class XML2NODELIST ---------------------- */
+
+/******************************************************************/
+/* XML2NODELIST constructor. */
+/******************************************************************/
+XML2NODELIST::XML2NODELIST(PXDOC dp, xmlNodeSetPtr lp)
+ : XMLNODELIST(dp)
+ {
+ Listp = lp;
+ } // end of XML2NODELIST constructor
+
+/******************************************************************/
+/* Return the length of the list. */
+/******************************************************************/
+int XML2NODELIST::GetLength(void)
+ {
+ return (Listp) ? Listp->nodeNr : 0;
+ } // end of GetLength
+
+/******************************************************************/
+/* Return the nth element of the list. */
+/******************************************************************/
+PXNODE XML2NODELIST::GetItem(PGLOBAL g, int n, PXNODE np)
+ {
+ if (trace(1))
+ htrc("GetItem: %d\n", n);
+
+ if (!Listp || Listp->nodeNr <= n)
+ return NULL;
+
+ if (np) {
+ ((PNODE2)np)->Nodep = Listp->nodeTab[n];
+ return np;
+ } else
+ return new(g) XML2NODE(Doc, Listp->nodeTab[n]);
+
+ } // end of GetItem
+
+/******************************************************************/
+/* Reset the pointer on the deleted item. */
+/******************************************************************/
+bool XML2NODELIST::DropItem(PGLOBAL g, int n)
+ {
+ if (trace(1))
+ htrc("DropItem: n=%d\n", n);
+
+ // We should do something here
+ if (!Listp || Listp->nodeNr <= n)
+ return true;
+
+ Listp->nodeTab[n] = NULL; // This was causing Valgrind warning
+ return false;
+ } // end of DropItem
+
+/* ---------------------- class XML2ATTR ------------------------ */
+
+/******************************************************************/
+/* XML2ATTR constructor. */
+/******************************************************************/
+XML2ATTR::XML2ATTR(PXDOC dp, xmlAttrPtr ap, xmlNodePtr np)
+ : XMLATTRIBUTE(dp)
+ {
+ Atrp = ap;
+ Parent = np;
+ } // end of XML2ATTR constructor
+
+/******************************************************************/
+/* Return the next sibling of the attribute. */
+/******************************************************************/
+PXATTR XML2ATTR::GetNext(PGLOBAL g)
+ {
+ if (trace(1))
+ htrc("Attr GetNext\n");
+
+ if (!Atrp->next)
+ return NULL;
+ else
+ return new(g) XML2ATTR(Doc, Atrp->next, Atrp->parent);
+
+ } // end of GetNext
+
+/******************************************************************/
+/* Return the text of an attribute. */
+/******************************************************************/
+RCODE XML2ATTR::GetText(PGLOBAL g, char *buf, int len)
+ {
+ RCODE rc = RC_OK;
+ xmlChar *txt;
+
+ if (trace(1))
+ htrc("GetText\n");
+
+ if ((txt = xmlGetProp(Atrp->parent, Atrp->name))) {
+ // Copy the text to the buffer
+ if (strlen((char*)txt) >= (unsigned)len) {
+ memcpy(buf, txt, len - 1);
+ buf[len - 1] = 0;
+ snprintf(g->Message, sizeof(g->Message), "Truncated %-.256s content", Atrp->name);
+ rc = RC_INFO;
+ } else
+ strcpy(buf, (const char*)txt);
+
+ xmlFree(txt);
+ } else
+ *buf = '\0';
+
+ if (trace(1))
+ htrc("GetText: %-.256s\n", buf);
+
+ return rc;
+ } // end of GetText
+
+/******************************************************************/
+/* Set the content of an attribute. */
+/******************************************************************/
+bool XML2ATTR::SetText(PGLOBAL g, char *txtp, int len)
+ {
+ if (trace(1))
+ htrc("SetText: %-.256s %d\n", txtp, len);
+
+ xmlSetProp(Parent, Atrp->name, BAD_CAST txtp);
+ return false;
+ } // end of SetText
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-30 00:05:54 +0000