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- #define IN_LIBXML
- #include "libxml.h"
- #ifdef LIBXML_C14N_ENABLED
- #ifdef LIBXML_OUTPUT_ENABLED
- #ifdef HAVE_STDLIB_H
- #include <stdlib.h>
- #endif
- #include <string.h>
- #include <libxml/tree.h>
- #include <libxml/parser.h>
- #include <libxml/uri.h>
- #include <libxml/xmlerror.h>
- #include <libxml/globals.h>
- #include <libxml/xpathInternals.h>
- #include <libxml/c14n.h>
- typedef enum {
- XMLC14N_BEFORE_DOCUMENT_ELEMENT = 0,
- XMLC14N_INSIDE_DOCUMENT_ELEMENT = 1,
- XMLC14N_AFTER_DOCUMENT_ELEMENT = 2
- } xmlC14NPosition;
- typedef struct _xmlC14NVisibleNsStack {
- int nsCurEnd;
- int nsPrevStart;
- int nsPrevEnd;
- int nsMax;
- xmlNsPtr *nsTab;
- xmlNodePtr *nodeTab;
- } xmlC14NVisibleNsStack, *xmlC14NVisibleNsStackPtr;
- typedef struct _xmlC14NCtx {
-
- xmlDocPtr doc;
- xmlC14NIsVisibleCallback is_visible_callback;
- void* user_data;
- int with_comments;
- xmlOutputBufferPtr buf;
-
- xmlC14NPosition pos;
- int parent_is_doc;
- xmlC14NVisibleNsStackPtr ns_rendered;
-
-
- xmlC14NMode mode;
-
- xmlChar **inclusive_ns_prefixes;
-
- int error;
- } xmlC14NCtx, *xmlC14NCtxPtr;
- static xmlC14NVisibleNsStackPtr xmlC14NVisibleNsStackCreate (void);
- static void xmlC14NVisibleNsStackDestroy (xmlC14NVisibleNsStackPtr cur);
- static void xmlC14NVisibleNsStackAdd (xmlC14NVisibleNsStackPtr cur,
- xmlNsPtr ns,
- xmlNodePtr node);
- static void xmlC14NVisibleNsStackSave (xmlC14NVisibleNsStackPtr cur,
- xmlC14NVisibleNsStackPtr state);
- static void xmlC14NVisibleNsStackRestore (xmlC14NVisibleNsStackPtr cur,
- xmlC14NVisibleNsStackPtr state);
- static void xmlC14NVisibleNsStackShift (xmlC14NVisibleNsStackPtr cur);
- static int xmlC14NVisibleNsStackFind (xmlC14NVisibleNsStackPtr cur,
- xmlNsPtr ns);
- static int xmlExcC14NVisibleNsStackFind (xmlC14NVisibleNsStackPtr cur,
- xmlNsPtr ns,
- xmlC14NCtxPtr ctx);
- static int xmlC14NIsNodeInNodeset (xmlNodeSetPtr nodes,
- xmlNodePtr node,
- xmlNodePtr parent);
- static int xmlC14NProcessNode(xmlC14NCtxPtr ctx, xmlNodePtr cur);
- static int xmlC14NProcessNodeList(xmlC14NCtxPtr ctx, xmlNodePtr cur);
- typedef enum {
- XMLC14N_NORMALIZE_ATTR = 0,
- XMLC14N_NORMALIZE_COMMENT = 1,
- XMLC14N_NORMALIZE_PI = 2,
- XMLC14N_NORMALIZE_TEXT = 3
- } xmlC14NNormalizationMode;
- static xmlChar *xmlC11NNormalizeString(const xmlChar * input,
- xmlC14NNormalizationMode mode);
- #define xmlC11NNormalizeAttr( a ) \
- xmlC11NNormalizeString((a), XMLC14N_NORMALIZE_ATTR)
- #define xmlC11NNormalizeComment( a ) \
- xmlC11NNormalizeString((a), XMLC14N_NORMALIZE_COMMENT)
- #define xmlC11NNormalizePI( a ) \
- xmlC11NNormalizeString((a), XMLC14N_NORMALIZE_PI)
- #define xmlC11NNormalizeText( a ) \
- xmlC11NNormalizeString((a), XMLC14N_NORMALIZE_TEXT)
- #define xmlC14NIsVisible( ctx, node, parent ) \
- (((ctx)->is_visible_callback != NULL) ? \
- (ctx)->is_visible_callback((ctx)->user_data, \
- (xmlNodePtr)(node), (xmlNodePtr)(parent)) : 1)
- #define xmlC14NIsExclusive( ctx ) \
- ( (ctx)->mode == XML_C14N_EXCLUSIVE_1_0 )
- static void
- xmlC14NErrMemory(const char *extra)
- {
- __xmlRaiseError(NULL, NULL, NULL, NULL, NULL, XML_FROM_C14N,
- XML_ERR_NO_MEMORY, XML_ERR_ERROR, NULL, 0, extra,
- NULL, NULL, 0, 0,
- "Memory allocation failed : %s\n", extra);
- }
- static void
- xmlC14NErrParam(const char *extra)
- {
- __xmlRaiseError(NULL, NULL, NULL, NULL, NULL, XML_FROM_C14N,
- XML_ERR_INTERNAL_ERROR, XML_ERR_ERROR, NULL, 0, extra,
- NULL, NULL, 0, 0,
- "Invalid parameter : %s\n", extra);
- }
- static void
- xmlC14NErrInternal(const char *extra)
- {
- __xmlRaiseError(NULL, NULL, NULL, NULL, NULL, XML_FROM_C14N,
- XML_ERR_INTERNAL_ERROR, XML_ERR_ERROR, NULL, 0, extra,
- NULL, NULL, 0, 0,
- "Internal error : %s\n", extra);
- }
- static void
- xmlC14NErrInvalidNode(const char *node_type, const char *extra)
- {
- __xmlRaiseError(NULL, NULL, NULL, NULL, NULL, XML_FROM_C14N,
- XML_C14N_INVALID_NODE, XML_ERR_ERROR, NULL, 0, extra,
- NULL, NULL, 0, 0,
- "Node %s is invalid here : %s\n", node_type, extra);
- }
- static void
- xmlC14NErrUnknownNode(int node_type, const char *extra)
- {
- __xmlRaiseError(NULL, NULL, NULL, NULL, NULL, XML_FROM_C14N,
- XML_C14N_UNKNOW_NODE, XML_ERR_ERROR, NULL, 0, extra,
- NULL, NULL, 0, 0,
- "Unknown node type %d found : %s\n", node_type, extra);
- }
- static void
- xmlC14NErrRelativeNamespace(const char *ns_uri)
- {
- __xmlRaiseError(NULL, NULL, NULL, NULL, NULL, XML_FROM_C14N,
- XML_C14N_RELATIVE_NAMESPACE, XML_ERR_ERROR, NULL, 0, NULL,
- NULL, NULL, 0, 0,
- "Relative namespace UR is invalid here : %s\n", ns_uri);
- }
- static void
- xmlC14NErr(xmlC14NCtxPtr ctxt, xmlNodePtr node, int error,
- const char * msg)
- {
- if (ctxt != NULL)
- ctxt->error = error;
- __xmlRaiseError(NULL, NULL, NULL,
- ctxt, node, XML_FROM_C14N, error,
- XML_ERR_ERROR, NULL, 0,
- NULL, NULL, NULL, 0, 0, "%s", msg);
- }
- #define XML_NAMESPACES_DEFAULT 16
- static int
- xmlC14NIsNodeInNodeset(xmlNodeSetPtr nodes, xmlNodePtr node, xmlNodePtr parent) {
- if((nodes != NULL) && (node != NULL)) {
- if(node->type != XML_NAMESPACE_DECL) {
- return(xmlXPathNodeSetContains(nodes, node));
- } else {
- xmlNs ns;
-
- memcpy(&ns, node, sizeof(ns));
-
-
- if((parent != NULL) && (parent->type == XML_ATTRIBUTE_NODE)) {
- ns.next = (xmlNsPtr)parent->parent;
- } else {
- ns.next = (xmlNsPtr)parent;
- }
-
- return(xmlXPathNodeSetContains(nodes, (xmlNodePtr)&ns));
- }
- }
- return(1);
- }
- static xmlC14NVisibleNsStackPtr
- xmlC14NVisibleNsStackCreate(void) {
- xmlC14NVisibleNsStackPtr ret;
- ret = (xmlC14NVisibleNsStackPtr) xmlMalloc(sizeof(xmlC14NVisibleNsStack));
- if (ret == NULL) {
- xmlC14NErrMemory("creating namespaces stack");
- return(NULL);
- }
- memset(ret, 0 , (size_t) sizeof(xmlC14NVisibleNsStack));
- return(ret);
- }
- static void
- xmlC14NVisibleNsStackDestroy(xmlC14NVisibleNsStackPtr cur) {
- if(cur == NULL) {
- xmlC14NErrParam("destroying namespaces stack");
- return;
- }
- if(cur->nsTab != NULL) {
- memset(cur->nsTab, 0, cur->nsMax * sizeof(xmlNsPtr));
- xmlFree(cur->nsTab);
- }
- if(cur->nodeTab != NULL) {
- memset(cur->nodeTab, 0, cur->nsMax * sizeof(xmlNodePtr));
- xmlFree(cur->nodeTab);
- }
- memset(cur, 0, sizeof(xmlC14NVisibleNsStack));
- xmlFree(cur);
-
- }
- static void
- xmlC14NVisibleNsStackAdd(xmlC14NVisibleNsStackPtr cur, xmlNsPtr ns, xmlNodePtr node) {
- if((cur == NULL) ||
- ((cur->nsTab == NULL) && (cur->nodeTab != NULL)) ||
- ((cur->nsTab != NULL) && (cur->nodeTab == NULL))) {
- xmlC14NErrParam("adding namespace to stack");
- return;
- }
- if ((cur->nsTab == NULL) && (cur->nodeTab == NULL)) {
- cur->nsTab = (xmlNsPtr*) xmlMalloc(XML_NAMESPACES_DEFAULT * sizeof(xmlNsPtr));
- cur->nodeTab = (xmlNodePtr*) xmlMalloc(XML_NAMESPACES_DEFAULT * sizeof(xmlNodePtr));
- if ((cur->nsTab == NULL) || (cur->nodeTab == NULL)) {
- xmlC14NErrMemory("adding node to stack");
- return;
- }
- memset(cur->nsTab, 0 , XML_NAMESPACES_DEFAULT * sizeof(xmlNsPtr));
- memset(cur->nodeTab, 0 , XML_NAMESPACES_DEFAULT * sizeof(xmlNodePtr));
- cur->nsMax = XML_NAMESPACES_DEFAULT;
- } else if(cur->nsMax == cur->nsCurEnd) {
- void *tmp;
- int tmpSize;
-
- tmpSize = 2 * cur->nsMax;
- tmp = xmlRealloc(cur->nsTab, tmpSize * sizeof(xmlNsPtr));
- if (tmp == NULL) {
- xmlC14NErrMemory("adding node to stack");
- return;
- }
- cur->nsTab = (xmlNsPtr*)tmp;
- tmp = xmlRealloc(cur->nodeTab, tmpSize * sizeof(xmlNodePtr));
- if (tmp == NULL) {
- xmlC14NErrMemory("adding node to stack");
- return;
- }
- cur->nodeTab = (xmlNodePtr*)tmp;
- cur->nsMax = tmpSize;
- }
- cur->nsTab[cur->nsCurEnd] = ns;
- cur->nodeTab[cur->nsCurEnd] = node;
- ++cur->nsCurEnd;
- }
- static void
- xmlC14NVisibleNsStackSave(xmlC14NVisibleNsStackPtr cur, xmlC14NVisibleNsStackPtr state) {
- if((cur == NULL) || (state == NULL)) {
- xmlC14NErrParam("saving namespaces stack");
- return;
- }
-
- state->nsCurEnd = cur->nsCurEnd;
- state->nsPrevStart = cur->nsPrevStart;
- state->nsPrevEnd = cur->nsPrevEnd;
- }
- static void
- xmlC14NVisibleNsStackRestore(xmlC14NVisibleNsStackPtr cur, xmlC14NVisibleNsStackPtr state) {
- if((cur == NULL) || (state == NULL)) {
- xmlC14NErrParam("restoring namespaces stack");
- return;
- }
- cur->nsCurEnd = state->nsCurEnd;
- cur->nsPrevStart = state->nsPrevStart;
- cur->nsPrevEnd = state->nsPrevEnd;
- }
- static void
- xmlC14NVisibleNsStackShift(xmlC14NVisibleNsStackPtr cur) {
- if(cur == NULL) {
- xmlC14NErrParam("shifting namespaces stack");
- return;
- }
- cur->nsPrevStart = cur->nsPrevEnd;
- cur->nsPrevEnd = cur->nsCurEnd;
- }
- static int
- xmlC14NStrEqual(const xmlChar *str1, const xmlChar *str2) {
- if (str1 == str2) return(1);
- if (str1 == NULL) return((*str2) == '\0');
- if (str2 == NULL) return((*str1) == '\0');
- do {
- if (*str1++ != *str2) return(0);
- } while (*str2++);
- return(1);
- }
- static int
- xmlC14NVisibleNsStackFind(xmlC14NVisibleNsStackPtr cur, xmlNsPtr ns)
- {
- int i;
- const xmlChar *prefix;
- const xmlChar *href;
- int has_empty_ns;
-
- if(cur == NULL) {
- xmlC14NErrParam("searching namespaces stack (c14n)");
- return (0);
- }
-
- prefix = ((ns == NULL) || (ns->prefix == NULL)) ? BAD_CAST "" : ns->prefix;
- href = ((ns == NULL) || (ns->href == NULL)) ? BAD_CAST "" : ns->href;
- has_empty_ns = (xmlC14NStrEqual(prefix, NULL) && xmlC14NStrEqual(href, NULL));
- if (cur->nsTab != NULL) {
- int start = (has_empty_ns) ? 0 : cur->nsPrevStart;
- for (i = cur->nsCurEnd - 1; i >= start; --i) {
- xmlNsPtr ns1 = cur->nsTab[i];
-
- if(xmlC14NStrEqual(prefix, (ns1 != NULL) ? ns1->prefix : NULL)) {
- return(xmlC14NStrEqual(href, (ns1 != NULL) ? ns1->href : NULL));
- }
- }
- }
- return(has_empty_ns);
- }
- static int
- xmlExcC14NVisibleNsStackFind(xmlC14NVisibleNsStackPtr cur, xmlNsPtr ns, xmlC14NCtxPtr ctx) {
- int i;
- const xmlChar *prefix;
- const xmlChar *href;
- int has_empty_ns;
-
- if(cur == NULL) {
- xmlC14NErrParam("searching namespaces stack (exc c14n)");
- return (0);
- }
-
- prefix = ((ns == NULL) || (ns->prefix == NULL)) ? BAD_CAST "" : ns->prefix;
- href = ((ns == NULL) || (ns->href == NULL)) ? BAD_CAST "" : ns->href;
- has_empty_ns = (xmlC14NStrEqual(prefix, NULL) && xmlC14NStrEqual(href, NULL));
- if (cur->nsTab != NULL) {
- int start = 0;
- for (i = cur->nsCurEnd - 1; i >= start; --i) {
- xmlNsPtr ns1 = cur->nsTab[i];
-
- if(xmlC14NStrEqual(prefix, (ns1 != NULL) ? ns1->prefix : NULL)) {
- if(xmlC14NStrEqual(href, (ns1 != NULL) ? ns1->href : NULL)) {
- return(xmlC14NIsVisible(ctx, ns1, cur->nodeTab[i]));
- } else {
- return(0);
- }
- }
- }
- }
- return(has_empty_ns);
- }
- static int
- xmlC14NIsXmlNs(xmlNsPtr ns)
- {
- return ((ns != NULL) &&
- (xmlStrEqual(ns->prefix, BAD_CAST "xml")) &&
- (xmlStrEqual(ns->href, XML_XML_NAMESPACE)));
- }
- static int
- xmlC14NNsCompare(xmlNsPtr ns1, xmlNsPtr ns2)
- {
- if (ns1 == ns2)
- return (0);
- if (ns1 == NULL)
- return (-1);
- if (ns2 == NULL)
- return (1);
- return (xmlStrcmp(ns1->prefix, ns2->prefix));
- }
- static int
- xmlC14NPrintNamespaces(const xmlNsPtr ns, xmlC14NCtxPtr ctx)
- {
- if ((ns == NULL) || (ctx == NULL)) {
- xmlC14NErrParam("writing namespaces");
- return 0;
- }
- if (ns->prefix != NULL) {
- xmlOutputBufferWriteString(ctx->buf, " xmlns:");
- xmlOutputBufferWriteString(ctx->buf, (const char *) ns->prefix);
- xmlOutputBufferWriteString(ctx->buf, "=\"");
- } else {
- xmlOutputBufferWriteString(ctx->buf, " xmlns=\"");
- }
- if(ns->href != NULL) {
- xmlOutputBufferWriteString(ctx->buf, (const char *) ns->href);
- }
- xmlOutputBufferWriteString(ctx->buf, "\"");
- return (1);
- }
- static int
- xmlC14NProcessNamespacesAxis(xmlC14NCtxPtr ctx, xmlNodePtr cur, int visible)
- {
- xmlNodePtr n;
- xmlNsPtr ns, tmp;
- xmlListPtr list;
- int already_rendered;
- int has_empty_ns = 0;
-
- if ((ctx == NULL) || (cur == NULL) || (cur->type != XML_ELEMENT_NODE)) {
- xmlC14NErrParam("processing namespaces axis (c14n)");
- return (-1);
- }
-
- list = xmlListCreate(NULL, (xmlListDataCompare) xmlC14NNsCompare);
- if (list == NULL) {
- xmlC14NErrInternal("creating namespaces list (c14n)");
- return (-1);
- }
-
- for(n = cur; n != NULL; n = n->parent) {
- for(ns = n->nsDef; ns != NULL; ns = ns->next) {
- tmp = xmlSearchNs(cur->doc, cur, ns->prefix);
-
- if((tmp == ns) && !xmlC14NIsXmlNs(ns) && xmlC14NIsVisible(ctx, ns, cur)) {
- already_rendered = xmlC14NVisibleNsStackFind(ctx->ns_rendered, ns);
- if(visible) {
- xmlC14NVisibleNsStackAdd(ctx->ns_rendered, ns, cur);
- }
- if(!already_rendered) {
- xmlListInsert(list, ns);
- }
- if(xmlStrlen(ns->prefix) == 0) {
- has_empty_ns = 1;
- }
- }
- }
- }
-
-
- if(visible && !has_empty_ns) {
- static xmlNs ns_default;
- memset(&ns_default, 0, sizeof(ns_default));
- if(!xmlC14NVisibleNsStackFind(ctx->ns_rendered, &ns_default)) {
- xmlC14NPrintNamespaces(&ns_default, ctx);
- }
- }
-
-
-
- xmlListWalk(list, (xmlListWalker) xmlC14NPrintNamespaces, (const void *) ctx);
-
- xmlListDelete(list);
- return (0);
- }
- static int
- xmlExcC14NProcessNamespacesAxis(xmlC14NCtxPtr ctx, xmlNodePtr cur, int visible)
- {
- xmlNsPtr ns;
- xmlListPtr list;
- xmlAttrPtr attr;
- int already_rendered;
- int has_empty_ns = 0;
- int has_visibly_utilized_empty_ns = 0;
- int has_empty_ns_in_inclusive_list = 0;
-
- if ((ctx == NULL) || (cur == NULL) || (cur->type != XML_ELEMENT_NODE)) {
- xmlC14NErrParam("processing namespaces axis (exc c14n)");
- return (-1);
- }
- if(!xmlC14NIsExclusive(ctx)) {
- xmlC14NErrParam("processing namespaces axis (exc c14n)");
- return (-1);
- }
-
- list = xmlListCreate(NULL, (xmlListDataCompare) xmlC14NNsCompare);
- if (list == NULL) {
- xmlC14NErrInternal("creating namespaces list (exc c14n)");
- return (-1);
- }
-
- if(ctx->inclusive_ns_prefixes != NULL) {
- xmlChar *prefix;
- int i;
-
- for (i = 0; ctx->inclusive_ns_prefixes[i] != NULL; ++i) {
- prefix = ctx->inclusive_ns_prefixes[i];
-
- if (xmlStrEqual(prefix, BAD_CAST "#default")
- || xmlStrEqual(prefix, BAD_CAST "")) {
- prefix = NULL;
- has_empty_ns_in_inclusive_list = 1;
- }
-
- ns = xmlSearchNs(cur->doc, cur, prefix);
- if((ns != NULL) && !xmlC14NIsXmlNs(ns) && xmlC14NIsVisible(ctx, ns, cur)) {
- already_rendered = xmlC14NVisibleNsStackFind(ctx->ns_rendered, ns);
- if(visible) {
- xmlC14NVisibleNsStackAdd(ctx->ns_rendered, ns, cur);
- }
- if(!already_rendered) {
- xmlListInsert(list, ns);
- }
- if(xmlStrlen(ns->prefix) == 0) {
- has_empty_ns = 1;
- }
- }
- }
- }
-
-
- if(cur->ns != NULL) {
- ns = cur->ns;
- } else {
- ns = xmlSearchNs(cur->doc, cur, NULL);
- has_visibly_utilized_empty_ns = 1;
- }
- if((ns != NULL) && !xmlC14NIsXmlNs(ns)) {
- if(visible && xmlC14NIsVisible(ctx, ns, cur)) {
- if(!xmlExcC14NVisibleNsStackFind(ctx->ns_rendered, ns, ctx)) {
- xmlListInsert(list, ns);
- }
- }
- if(visible) {
- xmlC14NVisibleNsStackAdd(ctx->ns_rendered, ns, cur);
- }
- if(xmlStrlen(ns->prefix) == 0) {
- has_empty_ns = 1;
- }
- }
-
-
-
- for(attr = cur->properties; attr != NULL; attr = attr->next) {
-
- if((attr->ns != NULL) && !xmlC14NIsXmlNs(attr->ns) && xmlC14NIsVisible(ctx, attr, cur)) {
- already_rendered = xmlExcC14NVisibleNsStackFind(ctx->ns_rendered, attr->ns, ctx);
- xmlC14NVisibleNsStackAdd(ctx->ns_rendered, attr->ns, cur);
- if(!already_rendered && visible) {
- xmlListInsert(list, attr->ns);
- }
- if(xmlStrlen(attr->ns->prefix) == 0) {
- has_empty_ns = 1;
- }
- } else if((attr->ns != NULL) && (xmlStrlen(attr->ns->prefix) == 0) && (xmlStrlen(attr->ns->href) == 0)) {
- has_visibly_utilized_empty_ns = 1;
- }
- }
-
- if(visible && has_visibly_utilized_empty_ns &&
- !has_empty_ns && !has_empty_ns_in_inclusive_list) {
- static xmlNs ns_default;
- memset(&ns_default, 0, sizeof(ns_default));
-
- already_rendered = xmlExcC14NVisibleNsStackFind(ctx->ns_rendered, &ns_default, ctx);
- if(!already_rendered) {
- xmlC14NPrintNamespaces(&ns_default, ctx);
- }
- } else if(visible && !has_empty_ns && has_empty_ns_in_inclusive_list) {
- static xmlNs ns_default;
- memset(&ns_default, 0, sizeof(ns_default));
- if(!xmlC14NVisibleNsStackFind(ctx->ns_rendered, &ns_default)) {
- xmlC14NPrintNamespaces(&ns_default, ctx);
- }
- }
-
-
- xmlListWalk(list, (xmlListWalker) xmlC14NPrintNamespaces, (const void *) ctx);
-
- xmlListDelete(list);
- return (0);
- }
- static int
- xmlC14NIsXmlAttr(xmlAttrPtr attr)
- {
- return ((attr->ns != NULL) &&
- (xmlC14NIsXmlNs(attr->ns) != 0));
- }
- static int
- xmlC14NAttrsCompare(xmlAttrPtr attr1, xmlAttrPtr attr2)
- {
- int ret = 0;
-
- if (attr1 == attr2)
- return (0);
- if (attr1 == NULL)
- return (-1);
- if (attr2 == NULL)
- return (1);
- if (attr1->ns == attr2->ns) {
- return (xmlStrcmp(attr1->name, attr2->name));
- }
-
- if (attr1->ns == NULL)
- return (-1);
- if (attr2->ns == NULL)
- return (1);
- if (attr1->ns->prefix == NULL)
- return (-1);
- if (attr2->ns->prefix == NULL)
- return (1);
- ret = xmlStrcmp(attr1->ns->href, attr2->ns->href);
- if (ret == 0) {
- ret = xmlStrcmp(attr1->name, attr2->name);
- }
- return (ret);
- }
- static int
- xmlC14NPrintAttrs(const xmlAttrPtr attr, xmlC14NCtxPtr ctx)
- {
- xmlChar *value;
- xmlChar *buffer;
- if ((attr == NULL) || (ctx == NULL)) {
- xmlC14NErrParam("writing attributes");
- return (0);
- }
- xmlOutputBufferWriteString(ctx->buf, " ");
- if (attr->ns != NULL && xmlStrlen(attr->ns->prefix) > 0) {
- xmlOutputBufferWriteString(ctx->buf,
- (const char *) attr->ns->prefix);
- xmlOutputBufferWriteString(ctx->buf, ":");
- }
- xmlOutputBufferWriteString(ctx->buf, (const char *) attr->name);
- xmlOutputBufferWriteString(ctx->buf, "=\"");
- value = xmlNodeListGetString(ctx->doc, attr->children, 1);
-
- if (value != NULL) {
- buffer = xmlC11NNormalizeAttr(value);
- xmlFree(value);
- if (buffer != NULL) {
- xmlOutputBufferWriteString(ctx->buf, (const char *) buffer);
- xmlFree(buffer);
- } else {
- xmlC14NErrInternal("normalizing attributes axis");
- return (0);
- }
- }
- xmlOutputBufferWriteString(ctx->buf, "\"");
- return (1);
- }
- static xmlAttrPtr
- xmlC14NFindHiddenParentAttr(xmlC14NCtxPtr ctx, xmlNodePtr cur, const xmlChar * name, const xmlChar * ns)
- {
- xmlAttrPtr res;
- while((cur != NULL) && (!xmlC14NIsVisible(ctx, cur, cur->parent))) {
- res = xmlHasNsProp(cur, name, ns);
- if(res != NULL) {
- return res;
- }
- cur = cur->parent;
- }
- return NULL;
- }
- static xmlAttrPtr
- xmlC14NFixupBaseAttr(xmlC14NCtxPtr ctx, xmlAttrPtr xml_base_attr)
- {
- xmlChar * res = NULL;
- xmlNodePtr cur;
- xmlAttrPtr attr;
- xmlChar * tmp_str;
- xmlChar * tmp_str2;
- int tmp_str_len;
- if ((ctx == NULL) || (xml_base_attr == NULL) || (xml_base_attr->parent == NULL)) {
- xmlC14NErrParam("processing xml:base attribute");
- return (NULL);
- }
-
- res = xmlNodeListGetString(ctx->doc, xml_base_attr->children, 1);
- if(res == NULL) {
- xmlC14NErrInternal("processing xml:base attribute - can't get attr value");
- return (NULL);
- }
-
- cur = xml_base_attr->parent->parent;
- while((cur != NULL) && (!xmlC14NIsVisible(ctx, cur, cur->parent))) {
- attr = xmlHasNsProp(cur, BAD_CAST "base", XML_XML_NAMESPACE);
- if(attr != NULL) {
-
- tmp_str = xmlNodeListGetString(ctx->doc, attr->children, 1);
- if(tmp_str == NULL) {
- xmlFree(res);
- xmlC14NErrInternal("processing xml:base attribute - can't get attr value");
- return (NULL);
- }
-
- tmp_str_len = xmlStrlen(tmp_str);
- if(tmp_str_len > 1 && tmp_str[tmp_str_len - 2] == '.') {
- tmp_str2 = xmlStrcat(tmp_str, BAD_CAST "/");
- if(tmp_str2 == NULL) {
- xmlFree(tmp_str);
- xmlFree(res);
- xmlC14NErrInternal("processing xml:base attribute - can't modify uri");
- return (NULL);
- }
- tmp_str = tmp_str2;
- }
-
- tmp_str2 = xmlBuildURI(res, tmp_str);
- if(tmp_str2 == NULL) {
- xmlFree(tmp_str);
- xmlFree(res);
- xmlC14NErrInternal("processing xml:base attribute - can't construct uri");
- return (NULL);
- }
-
- xmlFree(tmp_str);
- xmlFree(res);
- res = tmp_str2;
- }
-
- cur = cur->parent;
- }
-
- if((res == NULL) || xmlStrEqual(res, BAD_CAST "")) {
- xmlFree(res);
- return (NULL);
- }
-
- attr = xmlNewNsProp(NULL, xml_base_attr->ns, BAD_CAST "base", res);
- if(attr == NULL) {
- xmlFree(res);
- xmlC14NErrInternal("processing xml:base attribute - can't construct attribute");
- return (NULL);
- }
-
-
- xmlFree(res);
- return (attr);
- }
- static int
- xmlC14NProcessAttrsAxis(xmlC14NCtxPtr ctx, xmlNodePtr cur, int parent_visible)
- {
- xmlAttrPtr attr;
- xmlListPtr list;
- xmlAttrPtr attrs_to_delete = NULL;
-
-
- xmlAttrPtr xml_base_attr = NULL;
- xmlAttrPtr xml_lang_attr = NULL;
- xmlAttrPtr xml_space_attr = NULL;
- if ((ctx == NULL) || (cur == NULL) || (cur->type != XML_ELEMENT_NODE)) {
- xmlC14NErrParam("processing attributes axis");
- return (-1);
- }
-
- list = xmlListCreate(NULL, (xmlListDataCompare) xmlC14NAttrsCompare);
- if (list == NULL) {
- xmlC14NErrInternal("creating attributes list");
- return (-1);
- }
- switch(ctx->mode) {
- case XML_C14N_1_0:
-
-
-
- attr = cur->properties;
- while (attr != NULL) {
-
- if (xmlC14NIsVisible(ctx, attr, cur)) {
- xmlListInsert(list, attr);
- }
- attr = attr->next;
- }
-
- if (parent_visible && (cur->parent != NULL) &&
- (!xmlC14NIsVisible(ctx, cur->parent, cur->parent->parent)))
- {
- xmlNodePtr tmp;
-
- tmp = cur->parent;
- while (tmp != NULL) {
- attr = tmp->properties;
- while (attr != NULL) {
- if (xmlC14NIsXmlAttr(attr) != 0) {
- if (xmlListSearch(list, attr) == NULL) {
- xmlListInsert(list, attr);
- }
- }
- attr = attr->next;
- }
- tmp = tmp->parent;
- }
- }
-
- break;
- case XML_C14N_EXCLUSIVE_1_0:
-
-
- attr = cur->properties;
- while (attr != NULL) {
-
- if (xmlC14NIsVisible(ctx, attr, cur)) {
- xmlListInsert(list, attr);
- }
- attr = attr->next;
- }
-
- break;
- case XML_C14N_1_1:
-
-
- attr = cur->properties;
- while (attr != NULL) {
-
- if ((!parent_visible) || (xmlC14NIsXmlAttr(attr) == 0)) {
-
- if (xmlC14NIsVisible(ctx, attr, cur)) {
- xmlListInsert(list, attr);
- }
- } else {
- int matched = 0;
-
- if((!matched) && (xml_lang_attr == NULL) && xmlStrEqual(attr->name, BAD_CAST "lang")) {
- xml_lang_attr = attr;
- matched = 1;
- }
- if((!matched) && (xml_space_attr == NULL) && xmlStrEqual(attr->name, BAD_CAST "space")) {
- xml_space_attr = attr;
- matched = 1;
- }
-
- if((!matched) && (xml_base_attr == NULL) && xmlStrEqual(attr->name, BAD_CAST "base")) {
- xml_base_attr = attr;
- matched = 1;
- }
-
- if((!matched) && xmlC14NIsVisible(ctx, attr, cur)) {
- xmlListInsert(list, attr);
- }
- }
-
-
- attr = attr->next;
- }
-
-
- if ((parent_visible)) {
-
- if(xml_lang_attr == NULL) {
- xml_lang_attr = xmlC14NFindHiddenParentAttr(ctx, cur->parent, BAD_CAST "lang", XML_XML_NAMESPACE);
- }
- if(xml_lang_attr != NULL) {
- xmlListInsert(list, xml_lang_attr);
- }
- if(xml_space_attr == NULL) {
- xml_space_attr = xmlC14NFindHiddenParentAttr(ctx, cur->parent, BAD_CAST "space", XML_XML_NAMESPACE);
- }
- if(xml_space_attr != NULL) {
- xmlListInsert(list, xml_space_attr);
- }
-
- if(xml_base_attr == NULL) {
-
- xml_base_attr = xmlC14NFindHiddenParentAttr(ctx, cur->parent, BAD_CAST "base", XML_XML_NAMESPACE);
- }
- if(xml_base_attr != NULL) {
- xml_base_attr = xmlC14NFixupBaseAttr(ctx, xml_base_attr);
- if(xml_base_attr != NULL) {
- xmlListInsert(list, xml_base_attr);
-
- xml_base_attr->next = attrs_to_delete;
- attrs_to_delete = xml_base_attr;
- }
- }
- }
-
- break;
- }
-
- xmlListWalk(list, (xmlListWalker) xmlC14NPrintAttrs, (const void *) ctx);
-
- xmlFreePropList(attrs_to_delete);
- xmlListDelete(list);
- return (0);
- }
- static int
- xmlC14NCheckForRelativeNamespaces(xmlC14NCtxPtr ctx, xmlNodePtr cur)
- {
- xmlNsPtr ns;
- if ((ctx == NULL) || (cur == NULL) || (cur->type != XML_ELEMENT_NODE)) {
- xmlC14NErrParam("checking for relative namespaces");
- return (-1);
- }
- ns = cur->nsDef;
- while (ns != NULL) {
- if (xmlStrlen(ns->href) > 0) {
- xmlURIPtr uri;
- uri = xmlParseURI((const char *) ns->href);
- if (uri == NULL) {
- xmlC14NErrInternal("parsing namespace uri");
- return (-1);
- }
- if (xmlStrlen((const xmlChar *) uri->scheme) == 0) {
- xmlC14NErrRelativeNamespace(uri->scheme);
- xmlFreeURI(uri);
- return (-1);
- }
- if ((xmlStrcasecmp((const xmlChar *) uri->scheme, BAD_CAST "urn") != 0)
- && (xmlStrcasecmp((const xmlChar *) uri->scheme, BAD_CAST "dav") !=0)
- && (xmlStrlen((const xmlChar *) uri->server) == 0)) {
- xmlC14NErrRelativeNamespace(uri->scheme);
- xmlFreeURI(uri);
- return (-1);
- }
- xmlFreeURI(uri);
- }
- ns = ns->next;
- }
- return (0);
- }
- static int
- xmlC14NProcessElementNode(xmlC14NCtxPtr ctx, xmlNodePtr cur, int visible)
- {
- int ret;
- xmlC14NVisibleNsStack state;
- int parent_is_doc = 0;
- if ((ctx == NULL) || (cur == NULL) || (cur->type != XML_ELEMENT_NODE)) {
- xmlC14NErrParam("processing element node");
- return (-1);
- }
-
- if (xmlC14NCheckForRelativeNamespaces(ctx, cur) < 0) {
- xmlC14NErrInternal("checking for relative namespaces");
- return (-1);
- }
-
- memset(&state, 0, sizeof(state));
- xmlC14NVisibleNsStackSave(ctx->ns_rendered, &state);
- if (visible) {
- if (ctx->parent_is_doc) {
-
- parent_is_doc = ctx->parent_is_doc;
- ctx->parent_is_doc = 0;
- ctx->pos = XMLC14N_INSIDE_DOCUMENT_ELEMENT;
- }
- xmlOutputBufferWriteString(ctx->buf, "<");
- if ((cur->ns != NULL) && (xmlStrlen(cur->ns->prefix) > 0)) {
- xmlOutputBufferWriteString(ctx->buf,
- (const char *) cur->ns->prefix);
- xmlOutputBufferWriteString(ctx->buf, ":");
- }
- xmlOutputBufferWriteString(ctx->buf, (const char *) cur->name);
- }
- if (!xmlC14NIsExclusive(ctx)) {
- ret = xmlC14NProcessNamespacesAxis(ctx, cur, visible);
- } else {
- ret = xmlExcC14NProcessNamespacesAxis(ctx, cur, visible);
- }
- if (ret < 0) {
- xmlC14NErrInternal("processing namespaces axis");
- return (-1);
- }
-
- if(visible) {
- xmlC14NVisibleNsStackShift(ctx->ns_rendered);
- }
-
- ret = xmlC14NProcessAttrsAxis(ctx, cur, visible);
- if (ret < 0) {
- xmlC14NErrInternal("processing attributes axis");
- return (-1);
- }
- if (visible) {
- xmlOutputBufferWriteString(ctx->buf, ">");
- }
- if (cur->children != NULL) {
- ret = xmlC14NProcessNodeList(ctx, cur->children);
- if (ret < 0) {
- xmlC14NErrInternal("processing childrens list");
- return (-1);
- }
- }
- if (visible) {
- xmlOutputBufferWriteString(ctx->buf, "</");
- if ((cur->ns != NULL) && (xmlStrlen(cur->ns->prefix) > 0)) {
- xmlOutputBufferWriteString(ctx->buf,
- (const char *) cur->ns->prefix);
- xmlOutputBufferWriteString(ctx->buf, ":");
- }
- xmlOutputBufferWriteString(ctx->buf, (const char *) cur->name);
- xmlOutputBufferWriteString(ctx->buf, ">");
- if (parent_is_doc) {
-
- ctx->parent_is_doc = parent_is_doc;
- ctx->pos = XMLC14N_AFTER_DOCUMENT_ELEMENT;
- }
- }
-
- xmlC14NVisibleNsStackRestore(ctx->ns_rendered, &state);
- return (0);
- }
- static int
- xmlC14NProcessNode(xmlC14NCtxPtr ctx, xmlNodePtr cur)
- {
- int ret = 0;
- int visible;
- if ((ctx == NULL) || (cur == NULL)) {
- xmlC14NErrParam("processing node");
- return (-1);
- }
- visible = xmlC14NIsVisible(ctx, cur, cur->parent);
- switch (cur->type) {
- case XML_ELEMENT_NODE:
- ret = xmlC14NProcessElementNode(ctx, cur, visible);
- break;
- case XML_CDATA_SECTION_NODE:
- case XML_TEXT_NODE:
-
-
-
- if ((visible) && (cur->content != NULL)) {
- xmlChar *buffer;
- buffer = xmlC11NNormalizeText(cur->content);
- if (buffer != NULL) {
- xmlOutputBufferWriteString(ctx->buf,
- (const char *) buffer);
- xmlFree(buffer);
- } else {
- xmlC14NErrInternal("normalizing text node");
- return (-1);
- }
- }
- break;
- case XML_PI_NODE:
-
- if (visible) {
- if (ctx->pos == XMLC14N_AFTER_DOCUMENT_ELEMENT) {
- xmlOutputBufferWriteString(ctx->buf, "\x0A<?");
- } else {
- xmlOutputBufferWriteString(ctx->buf, "<?");
- }
- xmlOutputBufferWriteString(ctx->buf,
- (const char *) cur->name);
- if ((cur->content != NULL) && (*(cur->content) != '\0')) {
- xmlChar *buffer;
- xmlOutputBufferWriteString(ctx->buf, " ");
-
- buffer = xmlC11NNormalizePI(cur->content);
- if (buffer != NULL) {
- xmlOutputBufferWriteString(ctx->buf,
- (const char *) buffer);
- xmlFree(buffer);
- } else {
- xmlC14NErrInternal("normalizing pi node");
- return (-1);
- }
- }
- if (ctx->pos == XMLC14N_BEFORE_DOCUMENT_ELEMENT) {
- xmlOutputBufferWriteString(ctx->buf, "?>\x0A");
- } else {
- xmlOutputBufferWriteString(ctx->buf, "?>");
- }
- }
- break;
- case XML_COMMENT_NODE:
-
- if (visible && ctx->with_comments) {
- if (ctx->pos == XMLC14N_AFTER_DOCUMENT_ELEMENT) {
- xmlOutputBufferWriteString(ctx->buf, "\x0A<!--");
- } else {
- xmlOutputBufferWriteString(ctx->buf, "<!--");
- }
- if (cur->content != NULL) {
- xmlChar *buffer;
-
- buffer = xmlC11NNormalizeComment(cur->content);
- if (buffer != NULL) {
- xmlOutputBufferWriteString(ctx->buf,
- (const char *) buffer);
- xmlFree(buffer);
- } else {
- xmlC14NErrInternal("normalizing comment node");
- return (-1);
- }
- }
- if (ctx->pos == XMLC14N_BEFORE_DOCUMENT_ELEMENT) {
- xmlOutputBufferWriteString(ctx->buf, "-->\x0A");
- } else {
- xmlOutputBufferWriteString(ctx->buf, "-->");
- }
- }
- break;
- case XML_DOCUMENT_NODE:
- case XML_DOCUMENT_FRAG_NODE:
- #ifdef LIBXML_DOCB_ENABLED
- case XML_DOCB_DOCUMENT_NODE:
- #endif
- #ifdef LIBXML_HTML_ENABLED
- case XML_HTML_DOCUMENT_NODE:
- #endif
- if (cur->children != NULL) {
- ctx->pos = XMLC14N_BEFORE_DOCUMENT_ELEMENT;
- ctx->parent_is_doc = 1;
- ret = xmlC14NProcessNodeList(ctx, cur->children);
- }
- break;
- case XML_ATTRIBUTE_NODE:
- xmlC14NErrInvalidNode("XML_ATTRIBUTE_NODE", "processing node");
- return (-1);
- case XML_NAMESPACE_DECL:
- xmlC14NErrInvalidNode("XML_NAMESPACE_DECL", "processing node");
- return (-1);
- case XML_ENTITY_REF_NODE:
- xmlC14NErrInvalidNode("XML_ENTITY_REF_NODE", "processing node");
- return (-1);
- case XML_ENTITY_NODE:
- xmlC14NErrInvalidNode("XML_ENTITY_NODE", "processing node");
- return (-1);
- case XML_DOCUMENT_TYPE_NODE:
- case XML_NOTATION_NODE:
- case XML_DTD_NODE:
- case XML_ELEMENT_DECL:
- case XML_ATTRIBUTE_DECL:
- case XML_ENTITY_DECL:
- #ifdef LIBXML_XINCLUDE_ENABLED
- case XML_XINCLUDE_START:
- case XML_XINCLUDE_END:
- #endif
-
- break;
- default:
- xmlC14NErrUnknownNode(cur->type, "processing node");
- return (-1);
- }
- return (ret);
- }
- static int
- xmlC14NProcessNodeList(xmlC14NCtxPtr ctx, xmlNodePtr cur)
- {
- int ret;
- if (ctx == NULL) {
- xmlC14NErrParam("processing node list");
- return (-1);
- }
- for (ret = 0; cur != NULL && ret >= 0; cur = cur->next) {
- ret = xmlC14NProcessNode(ctx, cur);
- }
- return (ret);
- }
- static void
- xmlC14NFreeCtx(xmlC14NCtxPtr ctx)
- {
- if (ctx == NULL) {
- xmlC14NErrParam("freeing context");
- return;
- }
- if (ctx->ns_rendered != NULL) {
- xmlC14NVisibleNsStackDestroy(ctx->ns_rendered);
- }
- xmlFree(ctx);
- }
- static xmlC14NCtxPtr
- xmlC14NNewCtx(xmlDocPtr doc,
- xmlC14NIsVisibleCallback is_visible_callback, void* user_data,
- xmlC14NMode mode, xmlChar ** inclusive_ns_prefixes,
- int with_comments, xmlOutputBufferPtr buf)
- {
- xmlC14NCtxPtr ctx = NULL;
- if ((doc == NULL) || (buf == NULL)) {
- xmlC14NErrParam("creating new context");
- return (NULL);
- }
-
- if (buf->encoder != NULL) {
- xmlC14NErr(ctx, (xmlNodePtr) doc, XML_C14N_REQUIRES_UTF8,
- "xmlC14NNewCtx: output buffer encoder != NULL but C14N requires UTF8 output\n");
- return (NULL);
- }
-
- if (doc->charset != XML_CHAR_ENCODING_UTF8) {
- xmlC14NErr(ctx, (xmlNodePtr) doc, XML_C14N_REQUIRES_UTF8,
- "xmlC14NNewCtx: source document not in UTF8\n");
- return (NULL);
- }
-
- ctx = (xmlC14NCtxPtr) xmlMalloc(sizeof(xmlC14NCtx));
- if (ctx == NULL) {
- xmlC14NErrMemory("creating context");
- return (NULL);
- }
- memset(ctx, 0, sizeof(xmlC14NCtx));
-
- ctx->doc = doc;
- ctx->with_comments = with_comments;
- ctx->is_visible_callback = is_visible_callback;
- ctx->user_data = user_data;
- ctx->buf = buf;
- ctx->parent_is_doc = 1;
- ctx->pos = XMLC14N_BEFORE_DOCUMENT_ELEMENT;
- ctx->ns_rendered = xmlC14NVisibleNsStackCreate();
- if(ctx->ns_rendered == NULL) {
- xmlC14NErr(ctx, (xmlNodePtr) doc, XML_C14N_CREATE_STACK,
- "xmlC14NNewCtx: xmlC14NVisibleNsStackCreate failed\n");
- xmlC14NFreeCtx(ctx);
- return (NULL);
- }
-
- ctx->mode = mode;
- if(xmlC14NIsExclusive(ctx)) {
- ctx->inclusive_ns_prefixes = inclusive_ns_prefixes;
- }
- return (ctx);
- }
- int
- xmlC14NExecute(xmlDocPtr doc, xmlC14NIsVisibleCallback is_visible_callback,
- void* user_data, int mode, xmlChar **inclusive_ns_prefixes,
- int with_comments, xmlOutputBufferPtr buf) {
- xmlC14NCtxPtr ctx;
- xmlC14NMode c14n_mode = XML_C14N_1_0;
- int ret;
- if ((buf == NULL) || (doc == NULL)) {
- xmlC14NErrParam("executing c14n");
- return (-1);
- }
-
- switch(mode) {
- case XML_C14N_1_0:
- case XML_C14N_EXCLUSIVE_1_0:
- case XML_C14N_1_1:
- c14n_mode = (xmlC14NMode)mode;
- break;
- default:
- xmlC14NErrParam("invalid mode for executing c14n");
- return (-1);
- }
-
- if (buf->encoder != NULL) {
- xmlC14NErr(NULL, (xmlNodePtr) doc, XML_C14N_REQUIRES_UTF8,
- "xmlC14NExecute: output buffer encoder != NULL but C14N requires UTF8 output\n");
- return (-1);
- }
- ctx = xmlC14NNewCtx(doc, is_visible_callback, user_data,
- c14n_mode, inclusive_ns_prefixes,
- with_comments, buf);
- if (ctx == NULL) {
- xmlC14NErr(NULL, (xmlNodePtr) doc, XML_C14N_CREATE_CTXT,
- "xmlC14NExecute: unable to create C14N context\n");
- return (-1);
- }
-
- if (doc->children != NULL) {
- ret = xmlC14NProcessNodeList(ctx, doc->children);
- if (ret < 0) {
- xmlC14NErrInternal("processing docs children list");
- xmlC14NFreeCtx(ctx);
- return (-1);
- }
- }
-
- ret = xmlOutputBufferFlush(buf);
- if (ret < 0) {
- xmlC14NErrInternal("flushing output buffer");
- xmlC14NFreeCtx(ctx);
- return (-1);
- }
-
- xmlC14NFreeCtx(ctx);
- return (ret);
- }
- int
- xmlC14NDocSaveTo(xmlDocPtr doc, xmlNodeSetPtr nodes,
- int mode, xmlChar ** inclusive_ns_prefixes,
- int with_comments, xmlOutputBufferPtr buf) {
- return(xmlC14NExecute(doc,
- (xmlC14NIsVisibleCallback)xmlC14NIsNodeInNodeset,
- nodes,
- mode,
- inclusive_ns_prefixes,
- with_comments,
- buf));
- }
- int
- xmlC14NDocDumpMemory(xmlDocPtr doc, xmlNodeSetPtr nodes,
- int mode, xmlChar ** inclusive_ns_prefixes,
- int with_comments, xmlChar ** doc_txt_ptr)
- {
- int ret;
- xmlOutputBufferPtr buf;
- if (doc_txt_ptr == NULL) {
- xmlC14NErrParam("dumping doc to memory");
- return (-1);
- }
- *doc_txt_ptr = NULL;
-
- buf = xmlAllocOutputBuffer(NULL);
- if (buf == NULL) {
- xmlC14NErrMemory("creating output buffer");
- return (-1);
- }
-
- ret = xmlC14NDocSaveTo(doc, nodes, mode, inclusive_ns_prefixes,
- with_comments, buf);
- if (ret < 0) {
- xmlC14NErrInternal("saving doc to output buffer");
- (void) xmlOutputBufferClose(buf);
- return (-1);
- }
- ret = buf->buffer->use;
- if (ret > 0) {
- *doc_txt_ptr = xmlStrndup(buf->buffer->content, ret);
- }
- (void) xmlOutputBufferClose(buf);
- if ((*doc_txt_ptr == NULL) && (ret > 0)) {
- xmlC14NErrMemory("coping canonicanized document");
- return (-1);
- }
- return (ret);
- }
- int
- xmlC14NDocSave(xmlDocPtr doc, xmlNodeSetPtr nodes,
- int mode, xmlChar ** inclusive_ns_prefixes,
- int with_comments, const char *filename, int compression)
- {
- xmlOutputBufferPtr buf;
- int ret;
- if (filename == NULL) {
- xmlC14NErrParam("saving doc");
- return (-1);
- }
- #ifdef HAVE_ZLIB_H
- if (compression < 0)
- compression = xmlGetCompressMode();
- #endif
-
- buf = xmlOutputBufferCreateFilename(filename, NULL, compression);
- if (buf == NULL) {
- xmlC14NErrInternal("creating temporary filename");
- return (-1);
- }
-
- ret = xmlC14NDocSaveTo(doc, nodes, mode, inclusive_ns_prefixes,
- with_comments, buf);
- if (ret < 0) {
- xmlC14NErrInternal("cannicanize document to buffer");
- (void) xmlOutputBufferClose(buf);
- return (-1);
- }
-
- ret = xmlOutputBufferClose(buf);
- return (ret);
- }
- #define growBufferReentrant() { \
- buffer_size *= 2; \
- buffer = (xmlChar *) \
- xmlRealloc(buffer, buffer_size * sizeof(xmlChar)); \
- if (buffer == NULL) { \
- xmlC14NErrMemory("growing buffer"); \
- return(NULL); \
- } \
- }
- static xmlChar *
- xmlC11NNormalizeString(const xmlChar * input,
- xmlC14NNormalizationMode mode)
- {
- const xmlChar *cur = input;
- xmlChar *buffer = NULL;
- xmlChar *out = NULL;
- int buffer_size = 0;
- if (input == NULL)
- return (NULL);
-
- buffer_size = 1000;
- buffer = (xmlChar *) xmlMallocAtomic(buffer_size * sizeof(xmlChar));
- if (buffer == NULL) {
- xmlC14NErrMemory("allocating buffer");
- return (NULL);
- }
- out = buffer;
- while (*cur != '\0') {
- if ((out - buffer) > (buffer_size - 10)) {
- int indx = out - buffer;
- growBufferReentrant();
- out = &buffer[indx];
- }
- if ((*cur == '<') && ((mode == XMLC14N_NORMALIZE_ATTR) ||
- (mode == XMLC14N_NORMALIZE_TEXT))) {
- *out++ = '&';
- *out++ = 'l';
- *out++ = 't';
- *out++ = ';';
- } else if ((*cur == '>') && (mode == XMLC14N_NORMALIZE_TEXT)) {
- *out++ = '&';
- *out++ = 'g';
- *out++ = 't';
- *out++ = ';';
- } else if ((*cur == '&') && ((mode == XMLC14N_NORMALIZE_ATTR) ||
- (mode == XMLC14N_NORMALIZE_TEXT))) {
- *out++ = '&';
- *out++ = 'a';
- *out++ = 'm';
- *out++ = 'p';
- *out++ = ';';
- } else if ((*cur == '"') && (mode == XMLC14N_NORMALIZE_ATTR)) {
- *out++ = '&';
- *out++ = 'q';
- *out++ = 'u';
- *out++ = 'o';
- *out++ = 't';
- *out++ = ';';
- } else if ((*cur == '\x09') && (mode == XMLC14N_NORMALIZE_ATTR)) {
- *out++ = '&';
- *out++ = '#';
- *out++ = 'x';
- *out++ = '9';
- *out++ = ';';
- } else if ((*cur == '\x0A') && (mode == XMLC14N_NORMALIZE_ATTR)) {
- *out++ = '&';
- *out++ = '#';
- *out++ = 'x';
- *out++ = 'A';
- *out++ = ';';
- } else if ((*cur == '\x0D') && ((mode == XMLC14N_NORMALIZE_ATTR) ||
- (mode == XMLC14N_NORMALIZE_TEXT) ||
- (mode == XMLC14N_NORMALIZE_COMMENT) ||
- (mode == XMLC14N_NORMALIZE_PI))) {
- *out++ = '&';
- *out++ = '#';
- *out++ = 'x';
- *out++ = 'D';
- *out++ = ';';
- } else {
-
- *out++ = *cur;
- }
- cur++;
- }
- *out = 0;
- return (buffer);
- }
- #endif
- #define bottom_c14n
- #include "elfgcchack.h"
- #endif
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