Moved code from clixon_xml.c to namespace and io functions to reduce size of core xml file
This commit is contained in:
Olof hagsand
parent
2d521d52c8
commit
75b20936d3
22 changed files with 1162 additions and 1011 deletions
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@ -66,6 +66,7 @@
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#include "clixon_log.h"
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#include "clixon_yang.h"
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#include "clixon_xml.h"
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#include "clixon_yang_module.h"
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#include "clixon_xml_nsctx.h"
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/*! Create and initialize XML namespace context
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@ -408,3 +409,224 @@ xml_nsctx_yangspec(yang_stmt *yspec,
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done:
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return retval;
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}
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/*! Given an xml tree return URI namespace recursively : default or localname given
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*
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* Given an XML tree and a prefix (or NULL) return URI namespace.
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* @param[in] x XML tree
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* @param[in] prefix prefix/ns localname. If NULL then return default.
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* @param[out] namespace URI namespace (or NULL). Note pointer into xml tree
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* @retval 0 OK
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* @retval -1 Error
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* @code
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* if (xml2ns(xt, NULL, &namespace) < 0)
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* err;
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* @endcode
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* @see xmlns_check
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* @see xmlns_set cache is set
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* @note, this function uses a cache.
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*/
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int
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xml2ns(cxobj *x,
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char *prefix,
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char **namespace)
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{
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int retval = -1;
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char *ns = NULL;
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cxobj *xp;
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if ((ns = nscache_get(x, prefix)) != NULL)
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goto ok;
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if (prefix != NULL) /* xmlns:<prefix>="<uri>" */
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ns = xml_find_type_value(x, "xmlns", prefix, CX_ATTR);
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else{ /* xmlns="<uri>" */
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ns = xml_find_type_value(x, NULL, "xmlns", CX_ATTR);
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}
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/* namespace not found, try parent */
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if (ns == NULL){
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if ((xp = xml_parent(x)) != NULL){
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if (xml2ns(xp, prefix, &ns) < 0)
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goto done;
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}
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/* If no parent, return default namespace if defined */
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#ifdef USE_NETCONF_NS_AS_DEFAULT
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else{
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if (prefix == NULL)
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ns = NETCONF_BASE_NAMESPACE;
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else
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ns = NULL;
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}
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#endif
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}
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/* Set default namespace cache (since code is at this point,
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* no cache was found */
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if (ns && nscache_set(x, prefix, ns) < 0)
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goto done;
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ok:
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if (namespace)
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*namespace = ns;
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retval = 0;
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done:
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return retval;
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}
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/*! Add a namespace attribute to an XML node, either default or specific prefix
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* @param[in] x XML tree
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* @param[in] prefix prefix/ns localname. If NULL then set default xmlns
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* @param[in] ns URI namespace (or NULL). Will be copied
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* @retval 0 OK
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* @retval -1 Error
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* @see xml2ns
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*/
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int
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xmlns_set(cxobj *x,
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char *prefix,
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char *ns)
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{
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int retval = -1;
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cxobj *xa;
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if (prefix != NULL){ /* xmlns:<prefix>="<uri>" */
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if ((xa = xml_new(prefix, x, NULL)) == NULL)
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goto done;
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if (xml_prefix_set(xa, "xmlns") < 0)
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goto done;
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}
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else{ /* xmlns="<uri>" */
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if ((xa = xml_new("xmlns", x, NULL)) == NULL)
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goto done;
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}
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xml_type_set(xa, CX_ATTR);
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if (xml_value_set(xa, ns) < 0)
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goto done;
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/* (re)set namespace cache (as used in xml2ns) */
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if (ns && nscache_set(x, prefix, ns) < 0)
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goto done;
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retval = 0;
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done:
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return retval;
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}
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/*! Get namespace given prefix recursively
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* @param[in] xn XML node
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* @param[in] namespace Namespace
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* @param[out] prefixp Pointer to prefix if found
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* @retval -1 Error
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* @retval 0 No namespace found
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* @retval 1 Namespace found, prefix returned in prefixp
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*/
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int
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xml2prefix(cxobj *xn,
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char *namespace,
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char **prefixp)
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{
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int retval = -1;
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cxobj *xa = NULL;
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cxobj *xp;
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char *prefix = NULL;
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char *xaprefix;
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int ret;
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if (nscache_get_prefix(xn, namespace, &prefix) == 1) /* found */
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goto found;
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xa = NULL;
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while ((xa = xml_child_each(xn, xa, CX_ATTR)) != NULL) {
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/* xmlns=namespace */
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if (strcmp("xmlns", xml_name(xa)) == 0){
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if (strcmp(xml_value(xa), namespace) == 0){
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if (nscache_set(xn, NULL, namespace) < 0)
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goto done;
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prefix = NULL; /* Maybe should set all caches in ns:s children? */
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goto found;
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}
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}
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/* xmlns:prefix=namespace */
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else if ((xaprefix=xml_prefix(xa)) != NULL &&
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strcmp("xmlns", xaprefix) == 0){
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if (strcmp(xml_value(xa), namespace) == 0){
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prefix = xml_name(xa);
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if (nscache_set(xn, prefix, namespace) < 0)
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goto done;
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goto found;
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}
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}
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}
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if ((xp = xml_parent(xn)) != NULL){
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if ((ret = xml2prefix(xp, namespace, &prefix)) < 0)
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goto done;
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if (ret == 1){
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if (nscache_set(xn, prefix, namespace) < 0)
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goto done;
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goto found;
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}
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}
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retval = 0;
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done:
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return retval;
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found:
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*prefixp = prefix;
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retval = 1;
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goto done;
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}
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/*! See if xmlns:[<localname>=]<uri> exists, if so return <uri>
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*
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* @param[in] xn XML node
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* @param[in] nsn Namespace name
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* @retval URI return associated URI if found
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* @retval NULL No namespace name binding found for nsn
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* @see xml2ns XXX coordinate
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*/
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static char *
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xmlns_check(cxobj *xn,
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char *nsn)
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{
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cxobj *x = NULL;
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char *xns;
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while ((x = xml_child_each(xn, x, CX_ATTR)) != NULL)
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if ((xns = xml_prefix(x)) && strcmp(xns, "xmlns")==0 &&
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strcmp(xml_name(x), nsn) == 0)
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return xml_value(x);
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return NULL;
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}
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/*! Check namespace of xml node by searching recursively among ancestors
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* @param[in] xn xml node
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* @param[in] namespace check validity of namespace
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* @retval 0 Found / validated or no yang spec
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* @retval -1 Not found
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* @note This function is grossly inefficient
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*/
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int
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xml_localname_check(cxobj *xn,
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void *arg)
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{
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cxobj *xp = NULL;
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char *nsn;
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char *n;
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yang_stmt *ys = xml_spec(xn);
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/* No namespace name - comply */
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if ((nsn = xml_prefix(xn)) == NULL)
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return 0;
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/* Check if NSN defined in same node */
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if (xmlns_check(xn, nsn) != NULL)
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return 0;
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/* Check if NSN defined in some ancestor */
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while ((xp = xml_parent(xn)) != NULL) {
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if (xmlns_check(xp, nsn) != NULL)
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return 0;
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xn = xp;
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}
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/* Check if my namespace */
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if ((n = yang_find_myprefix(ys)) != NULL && strcmp(nsn,n)==0)
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return 0;
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/* Check if any imported module */
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if (yang_find_module_by_prefix(ys, nsn) != NULL)
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return 0;
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/* Not found, error */
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clicon_err(OE_XML, ENOENT, "Namespace name %s in %s:%s not found",
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nsn, nsn, xml_name(xn));
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return -1;
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}
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