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Feature: Added a basic renderer for <icestats>

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This commit is contained in:
Philipp Schafft 2020-10-07 19:11:13 +00:00
parent 9be721723c
commit 30f9e89e26
1 changed files with 214 additions and 0 deletions
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214
src/xml2json.c
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@ -215,6 +215,218 @@ static void render_node_legacyresponse(json_renderer_t *renderer, xmlDocPtr doc,
render_node_generic(renderer, doc, node, parent, cache);
}
static int handle_simple_child(json_renderer_t *renderer, xmlDocPtr doc, xmlNodePtr node, xmlNodePtr parent, struct xml2json_cache *cache, xmlNodePtr child, const char * number_keys[], const char * boolean_keys[])
{
if (child->type == XML_ELEMENT_NODE && child->name) {
size_t i;
for (i = 0; number_keys[i]; i++) {
if (strcmp((const char *)child->name, number_keys[i]) == 0) {
xmlChar *value = xmlNodeListGetString(doc, child->xmlChildrenNode, 1);
if (value) {
json_renderer_write_key(renderer, (const char *)child->name, JSON_RENDERER_FLAGS_NONE);
json_renderer_write_int(renderer, strtoll((const char*)value, NULL, 10));
xmlFree(value);
return 1;
}
}
}
for (i = 0; boolean_keys[i]; i++) {
if (strcmp((const char *)child->name, boolean_keys[i]) == 0) {
handle_booleanchildnode(renderer, doc, child, node, cache);
return 1;
}
}
if (child->xmlChildrenNode && !child->xmlChildrenNode->next && child->xmlChildrenNode->type == XML_TEXT_NODE) {
handle_textchildnode(renderer, doc, child, node, cache);
return 1;
}
}
return 0;
}
static void render_node_legacystats(json_renderer_t *renderer, xmlDocPtr doc, xmlNodePtr node, xmlNodePtr parent, struct xml2json_cache *cache)
{
static const char * number_keys_global[] = {
"listeners", "clients", "client_connections", "connections", "file_connections", "listener_connections",
"source_client_connections", "source_relay_connections", "source_total_connections", "sources", "stats", "stats_connections", NULL
};
static const char * boolean_keys_global[] = {
NULL
};
static const char * number_keys_source[] = {
"audio_bitrate", "audio_channels", "audio_samplerate", "ice-bitrate", "listener_peak", "listeners", "slow_listeners",
"total_bytes_read", "total_bytes_sent", NULL
};
static const char * boolean_keys_source[] = {
"public", NULL
};
int handled = 0;
if (node->type == XML_ELEMENT_NODE) {
const char *nodename = (const char *)node->name;
handled = 1;
if (strcmp(nodename, "icestats") == 0 || strcmp(nodename, "source") == 0) {
int is_icestats = strcmp(nodename, "icestats") == 0;
struct nodelist nodelist;
size_t i;
size_t len;
nodelist_init(&nodelist);
if (is_icestats)
json_renderer_begin(renderer, JSON_ELEMENT_TYPE_ARRAY);
json_renderer_begin(renderer, JSON_ELEMENT_TYPE_OBJECT);
if (node->xmlChildrenNode) {
xmlNodePtr cur = node->xmlChildrenNode;
do {
if (!handle_simple_child(renderer, doc, node, parent, cache, cur,
is_icestats ? number_keys_global : number_keys_source,
is_icestats ? boolean_keys_global : boolean_keys_source
)) {
nodelist_push(&nodelist, cur);
}
cur = cur->next;
} while (cur);
}
len = nodelist_fill(&nodelist);
for (i = 0; i < len; i++) {
xmlNodePtr cur = nodelist_get(&nodelist, i);
if (cur == NULL)
continue;
if (cur->type == XML_ELEMENT_NODE && cur->name) {
if (strcmp((const char *)cur->name, "modules") == 0) {
json_renderer_write_key(renderer, (const char *)cur->name, JSON_RENDERER_FLAGS_NONE);
handle_node_modules(renderer, doc, cur, node, cache);
nodelist_unset(&nodelist, i);
} else if (strcmp((const char *)cur->name, "source") == 0) {
size_t j;
json_renderer_write_key(renderer, (const char *)cur->name, JSON_RENDERER_FLAGS_NONE);
json_renderer_begin(renderer, JSON_ELEMENT_TYPE_OBJECT);
for (j = i; j < len; j++) {
xmlNodePtr subcur = nodelist_get(&nodelist, j);
if (subcur == NULL)
continue;
if (subcur->type == XML_ELEMENT_NODE && subcur->name && strcmp((const char *)cur->name, (const char *)subcur->name) == 0) {
xmlChar *mount = xmlGetProp(subcur, XMLSTR("mount"));
if (mount) {
json_renderer_write_key(renderer, (const char *)mount, JSON_RENDERER_FLAGS_NONE);
xmlFree(mount);
nodelist_unset(&nodelist, j);
render_node_legacystats(renderer, doc, cur, node, cache);
}
}
}
json_renderer_end(renderer);
nodelist_unset(&nodelist, i);
} else if (strcmp((const char *)cur->name, "metadata") == 0) {
size_t j;
json_renderer_write_key(renderer, (const char *)cur->name, JSON_RENDERER_FLAGS_NONE);
json_renderer_begin(renderer, JSON_ELEMENT_TYPE_OBJECT);
for (j = i; j < len; j++) {
xmlNodePtr subcur = nodelist_get(&nodelist, j);
if (subcur == NULL)
continue;
if (subcur->type == XML_ELEMENT_NODE && subcur->name && strcmp((const char *)cur->name, (const char *)subcur->name) == 0) {
xmlNodePtr child = subcur->xmlChildrenNode;
while (child) {
handle_textchildnode(renderer, doc, child, subcur, cache);
child = child->next;
}
nodelist_unset(&nodelist, j);
}
}
json_renderer_end(renderer);
} else if (strcmp((const char *)cur->name, "authentication") == 0) {
size_t j;
json_renderer_write_key(renderer, (const char *)cur->name, JSON_RENDERER_FLAGS_NONE);
json_renderer_begin(renderer, JSON_ELEMENT_TYPE_ARRAY);
for (j = i; j < len; j++) {
xmlNodePtr subcur = nodelist_get(&nodelist, j);
if (subcur == NULL)
continue;
if (subcur->type == XML_ELEMENT_NODE && subcur->name && strcmp((const char *)cur->name, (const char *)subcur->name) == 0) {
xmlNodePtr child = subcur->xmlChildrenNode;
while (child) {
render_node_legacystats(renderer, doc, child, subcur, cache);
child = child->next;
}
nodelist_unset(&nodelist, j);
}
}
json_renderer_end(renderer);
} else if (strcmp((const char *)cur->name, "playlist") == 0) {
json_renderer_write_key(renderer, (const char *)cur->name, JSON_RENDERER_FLAGS_NONE);
render_node(renderer, doc, cur, node, cache);
nodelist_unset(&nodelist, i);
}
}
//render_node_generic(renderer, doc, node, parent, cache);
}
if (!nodelist_is_empty(&nodelist)) {
json_renderer_write_key(renderer, "unhandled-child", JSON_RENDERER_FLAGS_NONE);
json_renderer_begin(renderer, JSON_ELEMENT_TYPE_ARRAY);
len = nodelist_fill(&nodelist);
for (i = 0; i < len; i++) {
xmlNodePtr cur = nodelist_get(&nodelist, i);
if (cur == NULL)
continue;
render_node(renderer, doc, cur, node, cache);
}
json_renderer_end(renderer);
}
json_renderer_end(renderer);
if (is_icestats)
json_renderer_end(renderer);
nodelist_free(&nodelist);
} else if (strcmp(nodename, "role") == 0) {
json_renderer_begin(renderer, JSON_ELEMENT_TYPE_OBJECT);
if (node->properties) {
xmlAttrPtr cur = node->properties;
do {
const char *name = (const char*)cur->name;
xmlChar *value = xmlNodeListGetString(doc, cur->children, 1);
if (value) {
json_renderer_write_key(renderer, name, JSON_RENDERER_FLAGS_NONE);
if (strncmp(name, "can-", 4) == 0) {
json_renderer_write_boolean(renderer, util_str_to_bool((const char *)value));
} else {
json_renderer_write_string(renderer, (const char*)value, JSON_RENDERER_FLAGS_NONE);
}
xmlFree(value);
}
} while ((cur = cur->next));
}
json_renderer_end(renderer);
} else {
handled = 0;
}
}
if (!handled)
render_node_generic(renderer, doc, node, parent, cache);
}
static void render_node_generic(json_renderer_t *renderer, xmlDocPtr doc, xmlNodePtr node, xmlNodePtr parent, struct xml2json_cache *cache)
{
json_renderer_begin(renderer, JSON_ELEMENT_TYPE_OBJECT);
@ -303,6 +515,8 @@ static void render_node(json_renderer_t *renderer, xmlDocPtr doc, xmlNodePtr nod
if (href) {
if (strcmp(href, "http://icecast.org/specs/legacyresponse-0.0.1") == 0) {
render = render_node_legacyresponse;
} else if (strcmp(href, "http://icecast.org/specs/legacystats-0.0.1") == 0) {
render = render_node_legacystats;
}
}