2020-10-04 05:44:43 -04:00
|
|
|
/* Icecast
|
|
|
|
*
|
|
|
|
* This program is distributed under the GNU General Public License, version 2.
|
|
|
|
* A copy of this license is included with this source.
|
|
|
|
*
|
|
|
|
* Copyright 2018-2020, Philipp "ph3-der-loewe" Schafft <lion@lion.leolix.org>,
|
|
|
|
*/
|
|
|
|
|
|
|
|
/**
|
|
|
|
* This file contains functions for rendering XML as JSON.
|
|
|
|
*/
|
|
|
|
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
|
|
#include <config.h>
|
|
|
|
#endif
|
|
|
|
|
2020-10-04 11:51:29 -04:00
|
|
|
#include <string.h>
|
|
|
|
|
2020-10-04 05:44:43 -04:00
|
|
|
#include "xml2json.h"
|
|
|
|
#include "json.h"
|
|
|
|
|
2020-10-07 07:56:58 -04:00
|
|
|
/* For XMLSTR() */
|
|
|
|
#include "cfgfile.h"
|
|
|
|
|
2020-10-04 05:44:43 -04:00
|
|
|
#include "logging.h"
|
|
|
|
#define CATMODULE "xml2json"
|
2020-10-04 11:30:50 -04:00
|
|
|
|
2020-10-04 11:51:29 -04:00
|
|
|
struct xml2json_cache {
|
2020-10-06 17:00:53 -04:00
|
|
|
const char *default_namespace;
|
2020-10-04 11:51:29 -04:00
|
|
|
xmlNsPtr ns;
|
|
|
|
void (*render)(json_renderer_t *renderer, xmlDocPtr doc, xmlNodePtr node, xmlNodePtr parent, struct xml2json_cache *cache);
|
|
|
|
};
|
|
|
|
|
|
|
|
static void render_node(json_renderer_t *renderer, xmlDocPtr doc, xmlNodePtr node, xmlNodePtr parent, struct xml2json_cache *cache);
|
2020-10-07 07:56:58 -04:00
|
|
|
static void render_node_generic(json_renderer_t *renderer, xmlDocPtr doc, xmlNodePtr node, xmlNodePtr parent, struct xml2json_cache *cache);
|
|
|
|
|
|
|
|
static void render_node_legacyresponse(json_renderer_t *renderer, xmlDocPtr doc, xmlNodePtr node, xmlNodePtr parent, struct xml2json_cache *cache)
|
|
|
|
{
|
|
|
|
int handled = 0;
|
|
|
|
|
|
|
|
if (node->type == XML_ELEMENT_NODE) {
|
|
|
|
const char *nodename = (const char *)node->name;
|
|
|
|
handled = 1;
|
|
|
|
if (strcmp(nodename, "iceresponse") == 0) {
|
|
|
|
json_renderer_begin(renderer, JSON_ELEMENT_TYPE_OBJECT);
|
|
|
|
if (node->xmlChildrenNode) {
|
|
|
|
xmlNodePtr cur = node->xmlChildrenNode;
|
|
|
|
|
|
|
|
do {
|
|
|
|
int handled_child = 1;
|
|
|
|
|
|
|
|
if (cur->type == XML_ELEMENT_NODE && cur->name) {
|
|
|
|
if (strcmp((const char *)cur->name, "message") == 0) {
|
|
|
|
xmlChar *value = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
|
|
|
|
if (value) {
|
|
|
|
json_renderer_write_key(renderer, "message", JSON_RENDERER_FLAGS_NONE);
|
|
|
|
json_renderer_write_string(renderer, (const char*)value, JSON_RENDERER_FLAGS_NONE);
|
|
|
|
xmlFree(value);
|
|
|
|
}
|
|
|
|
} else if (strcmp((const char *)cur->name, "return") == 0) {
|
|
|
|
xmlChar *value = xmlNodeListGetString(doc, cur->xmlChildrenNode, 1);
|
|
|
|
if (value) {
|
|
|
|
json_renderer_write_key(renderer, "success", JSON_RENDERER_FLAGS_NONE);
|
|
|
|
json_renderer_write_boolean(renderer, strcmp((const char *)value, "1") == 0);
|
|
|
|
xmlFree(value);
|
|
|
|
}
|
|
|
|
} else if (strcmp((const char *)cur->name, "modules") == 0) {
|
|
|
|
json_renderer_write_key(renderer, "modules", JSON_RENDERER_FLAGS_NONE);
|
|
|
|
render_node(renderer, doc, cur, node, cache);
|
|
|
|
} else {
|
|
|
|
handled_child = 0;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
handled_child = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!handled_child) {
|
|
|
|
json_renderer_write_key(renderer, "unhandled-child", JSON_RENDERER_FLAGS_NONE);
|
|
|
|
render_node(renderer, doc, cur, node, cache);
|
|
|
|
}
|
|
|
|
cur = cur->next;
|
|
|
|
} while (cur);
|
|
|
|
}
|
|
|
|
json_renderer_end(renderer);
|
|
|
|
} else if (strcmp(nodename, "modules") == 0) {
|
|
|
|
json_renderer_begin(renderer, JSON_ELEMENT_TYPE_OBJECT);
|
|
|
|
if (node->xmlChildrenNode) {
|
|
|
|
xmlNodePtr cur = node->xmlChildrenNode;
|
|
|
|
|
|
|
|
do {
|
|
|
|
if (cur->type == XML_ELEMENT_NODE && cur->name && strcmp((const char *)cur->name, "module") == 0) {
|
|
|
|
xmlChar *name = xmlGetProp(cur, XMLSTR("name"));
|
|
|
|
if (name) {
|
|
|
|
json_renderer_write_key(renderer, (const char *)name, JSON_RENDERER_FLAGS_NONE);
|
|
|
|
json_renderer_begin(renderer, JSON_ELEMENT_TYPE_OBJECT);
|
|
|
|
if (node->properties) {
|
|
|
|
xmlAttrPtr prop = node->properties;
|
|
|
|
|
|
|
|
do {
|
|
|
|
xmlChar *value = xmlNodeListGetString(doc, prop->children, 1);
|
|
|
|
if (value) {
|
|
|
|
json_renderer_write_key(renderer, (const char*)cur->name, JSON_RENDERER_FLAGS_NONE);
|
|
|
|
json_renderer_write_string(renderer, (const char*)value, JSON_RENDERER_FLAGS_NONE);
|
|
|
|
xmlFree(value);
|
|
|
|
}
|
|
|
|
} while ((prop = prop->next));
|
|
|
|
}
|
|
|
|
json_renderer_end(renderer);
|
|
|
|
xmlFree(name);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
json_renderer_write_key(renderer, "unhandled-child", JSON_RENDERER_FLAGS_NONE);
|
|
|
|
render_node(renderer, doc, cur, node, cache);
|
|
|
|
}
|
|
|
|
cur = cur->next;
|
|
|
|
} while (cur);
|
|
|
|
}
|
|
|
|
json_renderer_end(renderer);
|
|
|
|
} else {
|
|
|
|
handled = 0;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!handled)
|
|
|
|
render_node_generic(renderer, doc, node, parent, cache);
|
|
|
|
}
|
2020-10-04 11:51:29 -04:00
|
|
|
|
|
|
|
static void render_node_generic(json_renderer_t *renderer, xmlDocPtr doc, xmlNodePtr node, xmlNodePtr parent, struct xml2json_cache *cache)
|
2020-10-04 11:30:50 -04:00
|
|
|
{
|
|
|
|
json_renderer_begin(renderer, JSON_ELEMENT_TYPE_OBJECT);
|
|
|
|
|
|
|
|
json_renderer_write_key(renderer, "type", JSON_RENDERER_FLAGS_NONE);
|
|
|
|
switch (node->type) {
|
|
|
|
case XML_ELEMENT_NODE:
|
|
|
|
json_renderer_write_string(renderer, "element", JSON_RENDERER_FLAGS_NONE);
|
|
|
|
if (node->name) {
|
|
|
|
json_renderer_write_key(renderer, "name", JSON_RENDERER_FLAGS_NONE);
|
|
|
|
json_renderer_write_string(renderer, (const char *)node->name, JSON_RENDERER_FLAGS_NONE);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
case XML_TEXT_NODE:
|
|
|
|
json_renderer_write_string(renderer, "text", JSON_RENDERER_FLAGS_NONE);
|
|
|
|
break;
|
|
|
|
case XML_COMMENT_NODE:
|
|
|
|
json_renderer_write_string(renderer, "comment", JSON_RENDERER_FLAGS_NONE);
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
json_renderer_write_null(renderer);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (node->content) {
|
|
|
|
json_renderer_write_key(renderer, "text", JSON_RENDERER_FLAGS_NONE);
|
|
|
|
json_renderer_write_string(renderer, (const char *)node->content, JSON_RENDERER_FLAGS_NONE);
|
|
|
|
}
|
|
|
|
|
|
|
|
json_renderer_write_key(renderer, "ns", JSON_RENDERER_FLAGS_NONE);
|
|
|
|
if (node->ns && node->ns->href) {
|
|
|
|
json_renderer_write_string(renderer, (const char *)node->ns->href, JSON_RENDERER_FLAGS_NONE);
|
|
|
|
if (node->ns->prefix) {
|
|
|
|
json_renderer_write_key(renderer, "nsprefix", JSON_RENDERER_FLAGS_NONE);
|
|
|
|
json_renderer_write_string(renderer, (const char *)node->ns->prefix, JSON_RENDERER_FLAGS_NONE);
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
json_renderer_write_null(renderer);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (node->properties) {
|
|
|
|
xmlAttrPtr cur = node->properties;
|
|
|
|
|
|
|
|
json_renderer_write_key(renderer, "properties", JSON_RENDERER_FLAGS_NONE);
|
|
|
|
json_renderer_begin(renderer, JSON_ELEMENT_TYPE_OBJECT);
|
|
|
|
do {
|
|
|
|
xmlChar *value = xmlNodeListGetString(doc, cur->children, 1);
|
|
|
|
if (value) {
|
|
|
|
json_renderer_write_key(renderer, (const char*)cur->name, JSON_RENDERER_FLAGS_NONE);
|
|
|
|
json_renderer_write_string(renderer, (const char*)value, JSON_RENDERER_FLAGS_NONE);
|
|
|
|
xmlFree(value);
|
|
|
|
}
|
|
|
|
} while ((cur = cur->next));
|
|
|
|
json_renderer_end(renderer);
|
|
|
|
}
|
|
|
|
|
|
|
|
if (node->xmlChildrenNode) {
|
|
|
|
xmlNodePtr cur = node->xmlChildrenNode;
|
|
|
|
|
|
|
|
json_renderer_write_key(renderer, "children", JSON_RENDERER_FLAGS_NONE);
|
|
|
|
json_renderer_begin(renderer, JSON_ELEMENT_TYPE_ARRAY);
|
|
|
|
do {
|
2020-10-04 11:51:29 -04:00
|
|
|
render_node(renderer, doc, cur, node, cache);
|
2020-10-04 11:30:50 -04:00
|
|
|
cur = cur->next;
|
|
|
|
} while (cur);
|
|
|
|
json_renderer_end(renderer);
|
|
|
|
}
|
|
|
|
|
|
|
|
json_renderer_end(renderer);
|
|
|
|
}
|
|
|
|
|
2020-10-04 11:51:29 -04:00
|
|
|
|
|
|
|
static void render_node(json_renderer_t *renderer, xmlDocPtr doc, xmlNodePtr node, xmlNodePtr parent, struct xml2json_cache *cache)
|
|
|
|
{
|
|
|
|
void (*render)(json_renderer_t *renderer, xmlDocPtr doc, xmlNodePtr node, xmlNodePtr parent, struct xml2json_cache *cache) = NULL;
|
|
|
|
|
|
|
|
if (node->ns == cache->ns)
|
|
|
|
render = cache->render;
|
|
|
|
|
|
|
|
if (render == NULL) {
|
2020-10-06 17:00:53 -04:00
|
|
|
const char *href = cache->default_namespace;
|
|
|
|
|
|
|
|
if (node->ns && node->ns->href)
|
|
|
|
href = (const char *)node->ns->href;
|
2020-10-04 11:51:29 -04:00
|
|
|
|
2020-10-06 17:00:53 -04:00
|
|
|
if (href) {
|
2020-10-07 07:56:58 -04:00
|
|
|
if (strcmp(href, "http://icecast.org/specs/legacyresponse-0.0.1") == 0) {
|
|
|
|
render = render_node_legacyresponse;
|
|
|
|
}
|
2020-10-04 11:51:29 -04:00
|
|
|
}
|
|
|
|
|
2020-10-06 17:00:53 -04:00
|
|
|
if (render == NULL)
|
|
|
|
render = render_node_generic;
|
|
|
|
|
|
|
|
cache->ns = node->ns;
|
|
|
|
cache->render = render;
|
|
|
|
}
|
2020-10-04 11:51:29 -04:00
|
|
|
|
|
|
|
render(renderer, doc, node, parent, cache);
|
|
|
|
}
|
|
|
|
|
2020-10-04 16:37:16 -04:00
|
|
|
char * xml2json_render_doc_simple(xmlDocPtr doc, const char *default_namespace)
|
2020-10-04 11:30:50 -04:00
|
|
|
{
|
2020-10-04 11:51:29 -04:00
|
|
|
struct xml2json_cache cache;
|
2020-10-04 11:30:50 -04:00
|
|
|
json_renderer_t *renderer;
|
|
|
|
xmlNodePtr xmlroot;
|
|
|
|
|
|
|
|
if (!doc)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
renderer = json_renderer_create(JSON_RENDERER_FLAGS_NONE);
|
|
|
|
if (!renderer)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
xmlroot = xmlDocGetRootElement(doc);
|
|
|
|
if (!xmlroot)
|
|
|
|
return NULL;
|
|
|
|
|
2020-10-04 11:51:29 -04:00
|
|
|
memset(&cache, 0, sizeof(cache));
|
2020-10-06 17:00:53 -04:00
|
|
|
cache.default_namespace = default_namespace;
|
2020-10-04 11:51:29 -04:00
|
|
|
|
|
|
|
render_node(renderer, doc, xmlroot, NULL, &cache);
|
2020-10-04 11:30:50 -04:00
|
|
|
|
|
|
|
return json_renderer_finish(&renderer);
|
|
|
|
}
|