/*
* virjson.c: JSON object parsing/formatting
*
* Copyright (C) 2009-2010, 2012-2013 Red Hat, Inc.
* Copyright (C) 2009 Daniel P. Berrange
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* .
*
*/
#include
#include "virjson.h"
#include "viralloc.h"
#include "virerror.h"
#include "virlog.h"
#include "virstring.h"
#include "virutil.h"
#if WITH_YAJL
# include
# include
# ifdef WITH_YAJL2
# define yajl_size_t size_t
# else
# define yajl_size_t unsigned int
# endif
#endif
/* XXX fixme */
#define VIR_FROM_THIS VIR_FROM_NONE
typedef struct _virJSONParserState virJSONParserState;
typedef virJSONParserState *virJSONParserStatePtr;
struct _virJSONParserState {
virJSONValuePtr value;
char *key;
};
typedef struct _virJSONParser virJSONParser;
typedef virJSONParser *virJSONParserPtr;
struct _virJSONParser {
virJSONValuePtr head;
virJSONParserStatePtr state;
unsigned int nstate;
};
void virJSONValueFree(virJSONValuePtr value)
{
int i;
if (!value || value->protect)
return;
switch ((virJSONType) value->type) {
case VIR_JSON_TYPE_OBJECT:
for (i = 0 ; i < value->data.object.npairs; i++) {
VIR_FREE(value->data.object.pairs[i].key);
virJSONValueFree(value->data.object.pairs[i].value);
}
VIR_FREE(value->data.object.pairs);
break;
case VIR_JSON_TYPE_ARRAY:
for (i = 0 ; i < value->data.array.nvalues ; i++)
virJSONValueFree(value->data.array.values[i]);
VIR_FREE(value->data.array.values);
break;
case VIR_JSON_TYPE_STRING:
VIR_FREE(value->data.string);
break;
case VIR_JSON_TYPE_NUMBER:
VIR_FREE(value->data.number);
break;
case VIR_JSON_TYPE_BOOLEAN:
case VIR_JSON_TYPE_NULL:
break;
}
VIR_FREE(value);
}
virJSONValuePtr virJSONValueNewString(const char *data)
{
virJSONValuePtr val;
if (!data)
return virJSONValueNewNull();
if (VIR_ALLOC(val) < 0)
return NULL;
val->type = VIR_JSON_TYPE_STRING;
if (!(val->data.string = strdup(data))) {
VIR_FREE(val);
return NULL;
}
return val;
}
virJSONValuePtr virJSONValueNewStringLen(const char *data, size_t length)
{
virJSONValuePtr val;
if (!data)
return virJSONValueNewNull();
if (VIR_ALLOC(val) < 0)
return NULL;
val->type = VIR_JSON_TYPE_STRING;
if (!(val->data.string = strndup(data, length))) {
VIR_FREE(val);
return NULL;
}
return val;
}
static virJSONValuePtr virJSONValueNewNumber(const char *data)
{
virJSONValuePtr val;
if (VIR_ALLOC(val) < 0)
return NULL;
val->type = VIR_JSON_TYPE_NUMBER;
if (!(val->data.number = strdup(data))) {
VIR_FREE(val);
return NULL;
}
return val;
}
virJSONValuePtr virJSONValueNewNumberInt(int data)
{
virJSONValuePtr val = NULL;
char *str;
if (virAsprintf(&str, "%i", data) < 0)
return NULL;
val = virJSONValueNewNumber(str);
VIR_FREE(str);
return val;
}
virJSONValuePtr virJSONValueNewNumberUint(unsigned int data)
{
virJSONValuePtr val = NULL;
char *str;
if (virAsprintf(&str, "%u", data) < 0)
return NULL;
val = virJSONValueNewNumber(str);
VIR_FREE(str);
return val;
}
virJSONValuePtr virJSONValueNewNumberLong(long long data)
{
virJSONValuePtr val = NULL;
char *str;
if (virAsprintf(&str, "%lld", data) < 0)
return NULL;
val = virJSONValueNewNumber(str);
VIR_FREE(str);
return val;
}
virJSONValuePtr virJSONValueNewNumberUlong(unsigned long long data)
{
virJSONValuePtr val = NULL;
char *str;
if (virAsprintf(&str, "%llu", data) < 0)
return NULL;
val = virJSONValueNewNumber(str);
VIR_FREE(str);
return val;
}
virJSONValuePtr virJSONValueNewNumberDouble(double data)
{
virJSONValuePtr val = NULL;
char *str;
if (virDoubleToStr(&str, data) < 0)
return NULL;
val = virJSONValueNewNumber(str);
VIR_FREE(str);
return val;
}
virJSONValuePtr virJSONValueNewBoolean(int boolean_)
{
virJSONValuePtr val;
if (VIR_ALLOC(val) < 0)
return NULL;
val->type = VIR_JSON_TYPE_BOOLEAN;
val->data.boolean = boolean_;
return val;
}
virJSONValuePtr virJSONValueNewNull(void)
{
virJSONValuePtr val;
if (VIR_ALLOC(val) < 0)
return NULL;
val->type = VIR_JSON_TYPE_NULL;
return val;
}
virJSONValuePtr virJSONValueNewArray(void)
{
virJSONValuePtr val;
if (VIR_ALLOC(val) < 0)
return NULL;
val->type = VIR_JSON_TYPE_ARRAY;
return val;
}
virJSONValuePtr virJSONValueNewObject(void)
{
virJSONValuePtr val;
if (VIR_ALLOC(val) < 0)
return NULL;
val->type = VIR_JSON_TYPE_OBJECT;
return val;
}
int virJSONValueObjectAppend(virJSONValuePtr object, const char *key, virJSONValuePtr value)
{
char *newkey;
if (object->type != VIR_JSON_TYPE_OBJECT)
return -1;
if (virJSONValueObjectHasKey(object, key))
return -1;
if (!(newkey = strdup(key)))
return -1;
if (VIR_REALLOC_N(object->data.object.pairs,
object->data.object.npairs + 1) < 0) {
VIR_FREE(newkey);
return -1;
}
object->data.object.pairs[object->data.object.npairs].key = newkey;
object->data.object.pairs[object->data.object.npairs].value = value;
object->data.object.npairs++;
return 0;
}
int virJSONValueObjectAppendString(virJSONValuePtr object, const char *key, const char *value)
{
virJSONValuePtr jvalue = virJSONValueNewString(value);
if (!jvalue)
return -1;
if (virJSONValueObjectAppend(object, key, jvalue) < 0) {
virJSONValueFree(jvalue);
return -1;
}
return 0;
}
int virJSONValueObjectAppendNumberInt(virJSONValuePtr object, const char *key, int number)
{
virJSONValuePtr jvalue = virJSONValueNewNumberInt(number);
if (!jvalue)
return -1;
if (virJSONValueObjectAppend(object, key, jvalue) < 0) {
virJSONValueFree(jvalue);
return -1;
}
return 0;
}
int virJSONValueObjectAppendNumberUint(virJSONValuePtr object, const char *key, unsigned int number)
{
virJSONValuePtr jvalue = virJSONValueNewNumberUint(number);
if (!jvalue)
return -1;
if (virJSONValueObjectAppend(object, key, jvalue) < 0) {
virJSONValueFree(jvalue);
return -1;
}
return 0;
}
int virJSONValueObjectAppendNumberLong(virJSONValuePtr object, const char *key, long long number)
{
virJSONValuePtr jvalue = virJSONValueNewNumberLong(number);
if (!jvalue)
return -1;
if (virJSONValueObjectAppend(object, key, jvalue) < 0) {
virJSONValueFree(jvalue);
return -1;
}
return 0;
}
int virJSONValueObjectAppendNumberUlong(virJSONValuePtr object, const char *key, unsigned long long number)
{
virJSONValuePtr jvalue = virJSONValueNewNumberUlong(number);
if (!jvalue)
return -1;
if (virJSONValueObjectAppend(object, key, jvalue) < 0) {
virJSONValueFree(jvalue);
return -1;
}
return 0;
}
int virJSONValueObjectAppendNumberDouble(virJSONValuePtr object, const char *key, double number)
{
virJSONValuePtr jvalue = virJSONValueNewNumberDouble(number);
if (!jvalue)
return -1;
if (virJSONValueObjectAppend(object, key, jvalue) < 0) {
virJSONValueFree(jvalue);
return -1;
}
return 0;
}
int virJSONValueObjectAppendBoolean(virJSONValuePtr object, const char *key, int boolean_)
{
virJSONValuePtr jvalue = virJSONValueNewBoolean(boolean_);
if (!jvalue)
return -1;
if (virJSONValueObjectAppend(object, key, jvalue) < 0) {
virJSONValueFree(jvalue);
return -1;
}
return 0;
}
int virJSONValueObjectAppendNull(virJSONValuePtr object, const char *key)
{
virJSONValuePtr jvalue = virJSONValueNewNull();
if (!jvalue)
return -1;
if (virJSONValueObjectAppend(object, key, jvalue) < 0) {
virJSONValueFree(jvalue);
return -1;
}
return 0;
}
int virJSONValueArrayAppend(virJSONValuePtr array, virJSONValuePtr value)
{
if (array->type != VIR_JSON_TYPE_ARRAY)
return -1;
if (VIR_REALLOC_N(array->data.array.values,
array->data.array.nvalues + 1) < 0)
return -1;
array->data.array.values[array->data.array.nvalues] = value;
array->data.array.nvalues++;
return 0;
}
int virJSONValueObjectHasKey(virJSONValuePtr object, const char *key)
{
int i;
if (object->type != VIR_JSON_TYPE_OBJECT)
return -1;
for (i = 0 ; i < object->data.object.npairs ; i++) {
if (STREQ(object->data.object.pairs[i].key, key))
return 1;
}
return 0;
}
virJSONValuePtr virJSONValueObjectGet(virJSONValuePtr object, const char *key)
{
int i;
if (object->type != VIR_JSON_TYPE_OBJECT)
return NULL;
for (i = 0 ; i < object->data.object.npairs ; i++) {
if (STREQ(object->data.object.pairs[i].key, key))
return object->data.object.pairs[i].value;
}
return NULL;
}
int virJSONValueObjectKeysNumber(virJSONValuePtr object)
{
if (object->type != VIR_JSON_TYPE_OBJECT)
return -1;
return object->data.object.npairs;
}
const char *virJSONValueObjectGetKey(virJSONValuePtr object, unsigned int n)
{
if (object->type != VIR_JSON_TYPE_OBJECT)
return NULL;
if (n >= object->data.object.npairs)
return NULL;
return object->data.object.pairs[n].key;
}
/* Remove the key-value pair tied to @key out of @object. If @value is
* not NULL, the dropped value object is returned instead of freed.
* Returns 1 on success, 0 if no key was found, and -1 on error. */
int
virJSONValueObjectRemoveKey(virJSONValuePtr object, const char *key,
virJSONValuePtr *value)
{
int i;
if (value)
*value = NULL;
if (object->type != VIR_JSON_TYPE_OBJECT)
return -1;
for (i = 0 ; i < object->data.object.npairs ; i++) {
if (STREQ(object->data.object.pairs[i].key, key)) {
if (value) {
*value = object->data.object.pairs[i].value;
object->data.object.pairs[i].value = NULL;
}
VIR_FREE(object->data.object.pairs[i].key);
virJSONValueFree(object->data.object.pairs[i].value);
VIR_DELETE_ELEMENT(object->data.object.pairs, i,
object->data.object.npairs);
return 1;
}
}
return 0;
}
virJSONValuePtr virJSONValueObjectGetValue(virJSONValuePtr object, unsigned int n)
{
if (object->type != VIR_JSON_TYPE_OBJECT)
return NULL;
if (n >= object->data.object.npairs)
return NULL;
return object->data.object.pairs[n].value;
}
int virJSONValueArraySize(virJSONValuePtr array)
{
if (array->type != VIR_JSON_TYPE_ARRAY)
return -1;
return array->data.array.nvalues;
}
virJSONValuePtr virJSONValueArrayGet(virJSONValuePtr array, unsigned int element)
{
if (array->type != VIR_JSON_TYPE_ARRAY)
return NULL;
if (element >= array->data.array.nvalues)
return NULL;
return array->data.array.values[element];
}
const char *virJSONValueGetString(virJSONValuePtr string)
{
if (string->type != VIR_JSON_TYPE_STRING)
return NULL;
return string->data.string;
}
int virJSONValueGetNumberInt(virJSONValuePtr number, int *value)
{
if (number->type != VIR_JSON_TYPE_NUMBER)
return -1;
return virStrToLong_i(number->data.number, NULL, 10, value);
}
int virJSONValueGetNumberUint(virJSONValuePtr number, unsigned int *value)
{
if (number->type != VIR_JSON_TYPE_NUMBER)
return -1;
return virStrToLong_ui(number->data.number, NULL, 10, value);
}
int virJSONValueGetNumberLong(virJSONValuePtr number, long long *value)
{
if (number->type != VIR_JSON_TYPE_NUMBER)
return -1;
return virStrToLong_ll(number->data.number, NULL, 10, value);
}
int virJSONValueGetNumberUlong(virJSONValuePtr number, unsigned long long *value)
{
if (number->type != VIR_JSON_TYPE_NUMBER)
return -1;
return virStrToLong_ull(number->data.number, NULL, 10, value);
}
int virJSONValueGetNumberDouble(virJSONValuePtr number, double *value)
{
if (number->type != VIR_JSON_TYPE_NUMBER)
return -1;
return virStrToDouble(number->data.number, NULL, value);
}
int virJSONValueGetBoolean(virJSONValuePtr val, bool *value)
{
if (val->type != VIR_JSON_TYPE_BOOLEAN)
return -1;
*value = val->data.boolean;
return 0;
}
int virJSONValueIsNull(virJSONValuePtr val)
{
if (val->type != VIR_JSON_TYPE_NULL)
return 0;
return 1;
}
const char *virJSONValueObjectGetString(virJSONValuePtr object, const char *key)
{
virJSONValuePtr val;
if (object->type != VIR_JSON_TYPE_OBJECT)
return NULL;
val = virJSONValueObjectGet(object, key);
if (!val)
return NULL;
return virJSONValueGetString(val);
}
int virJSONValueObjectGetNumberInt(virJSONValuePtr object, const char *key, int *value)
{
virJSONValuePtr val;
if (object->type != VIR_JSON_TYPE_OBJECT)
return -1;
val = virJSONValueObjectGet(object, key);
if (!val)
return -1;
return virJSONValueGetNumberInt(val, value);
}
int virJSONValueObjectGetNumberUint(virJSONValuePtr object, const char *key, unsigned int *value)
{
virJSONValuePtr val;
if (object->type != VIR_JSON_TYPE_OBJECT)
return -1;
val = virJSONValueObjectGet(object, key);
if (!val)
return -1;
return virJSONValueGetNumberUint(val, value);
}
int virJSONValueObjectGetNumberLong(virJSONValuePtr object, const char *key, long long *value)
{
virJSONValuePtr val;
if (object->type != VIR_JSON_TYPE_OBJECT)
return -1;
val = virJSONValueObjectGet(object, key);
if (!val)
return -1;
return virJSONValueGetNumberLong(val, value);
}
int virJSONValueObjectGetNumberUlong(virJSONValuePtr object, const char *key, unsigned long long *value)
{
virJSONValuePtr val;
if (object->type != VIR_JSON_TYPE_OBJECT)
return -1;
val = virJSONValueObjectGet(object, key);
if (!val)
return -1;
return virJSONValueGetNumberUlong(val, value);
}
int virJSONValueObjectGetNumberDouble(virJSONValuePtr object, const char *key, double *value)
{
virJSONValuePtr val;
if (object->type != VIR_JSON_TYPE_OBJECT)
return -1;
val = virJSONValueObjectGet(object, key);
if (!val)
return -1;
return virJSONValueGetNumberDouble(val, value);
}
int virJSONValueObjectGetBoolean(virJSONValuePtr object, const char *key, bool *value)
{
virJSONValuePtr val;
if (object->type != VIR_JSON_TYPE_OBJECT)
return -1;
val = virJSONValueObjectGet(object, key);
if (!val)
return -1;
return virJSONValueGetBoolean(val, value);
}
int virJSONValueObjectIsNull(virJSONValuePtr object, const char *key)
{
virJSONValuePtr val;
if (object->type != VIR_JSON_TYPE_OBJECT)
return -1;
val = virJSONValueObjectGet(object, key);
if (!val)
return -1;
return virJSONValueIsNull(val);
}
#if WITH_YAJL
static int virJSONParserInsertValue(virJSONParserPtr parser,
virJSONValuePtr value)
{
if (!parser->head) {
parser->head = value;
} else {
virJSONParserStatePtr state;
if (!parser->nstate) {
VIR_DEBUG("got a value to insert without a container");
return -1;
}
state = &parser->state[parser->nstate-1];
switch (state->value->type) {
case VIR_JSON_TYPE_OBJECT: {
if (!state->key) {
VIR_DEBUG("missing key when inserting object value");
return -1;
}
if (virJSONValueObjectAppend(state->value,
state->key,
value) < 0)
return -1;
VIR_FREE(state->key);
} break;
case VIR_JSON_TYPE_ARRAY: {
if (state->key) {
VIR_DEBUG("unexpected key when inserting array value");
return -1;
}
if (virJSONValueArrayAppend(state->value,
value) < 0)
return -1;
} break;
default:
VIR_DEBUG("unexpected value type, not a container");
return -1;
}
}
return 0;
}
static int virJSONParserHandleNull(void *ctx)
{
virJSONParserPtr parser = ctx;
virJSONValuePtr value = virJSONValueNewNull();
VIR_DEBUG("parser=%p", parser);
if (!value)
return 0;
if (virJSONParserInsertValue(parser, value) < 0) {
virJSONValueFree(value);
return 0;
}
return 1;
}
static int virJSONParserHandleBoolean(void *ctx, int boolean_)
{
virJSONParserPtr parser = ctx;
virJSONValuePtr value = virJSONValueNewBoolean(boolean_);
VIR_DEBUG("parser=%p boolean=%d", parser, boolean_);
if (!value)
return 0;
if (virJSONParserInsertValue(parser, value) < 0) {
virJSONValueFree(value);
return 0;
}
return 1;
}
static int virJSONParserHandleNumber(void *ctx,
const char *s,
yajl_size_t l)
{
virJSONParserPtr parser = ctx;
char *str = strndup(s, l);
virJSONValuePtr value;
if (!str)
return -1;
value = virJSONValueNewNumber(str);
VIR_FREE(str);
VIR_DEBUG("parser=%p str=%s", parser, str);
if (!value)
return 0;
if (virJSONParserInsertValue(parser, value) < 0) {
virJSONValueFree(value);
return 0;
}
return 1;
}
static int virJSONParserHandleString(void *ctx,
const unsigned char *stringVal,
yajl_size_t stringLen)
{
virJSONParserPtr parser = ctx;
virJSONValuePtr value = virJSONValueNewStringLen((const char *)stringVal,
stringLen);
VIR_DEBUG("parser=%p str=%p", parser, (const char *)stringVal);
if (!value)
return 0;
if (virJSONParserInsertValue(parser, value) < 0) {
virJSONValueFree(value);
return 0;
}
return 1;
}
static int virJSONParserHandleMapKey(void *ctx,
const unsigned char *stringVal,
yajl_size_t stringLen)
{
virJSONParserPtr parser = ctx;
virJSONParserStatePtr state;
VIR_DEBUG("parser=%p key=%p", parser, (const char *)stringVal);
if (!parser->nstate)
return 0;
state = &parser->state[parser->nstate-1];
if (state->key)
return 0;
state->key = strndup((const char *)stringVal, stringLen);
if (!state->key)
return 0;
return 1;
}
static int virJSONParserHandleStartMap(void *ctx)
{
virJSONParserPtr parser = ctx;
virJSONValuePtr value = virJSONValueNewObject();
VIR_DEBUG("parser=%p", parser);
if (!value)
return 0;
if (virJSONParserInsertValue(parser, value) < 0) {
virJSONValueFree(value);
return 0;
}
if (VIR_REALLOC_N(parser->state,
parser->nstate + 1) < 0) {
virJSONValueFree(value);
return 0;
}
parser->state[parser->nstate].value = value;
parser->state[parser->nstate].key = NULL;
parser->nstate++;
return 1;
}
static int virJSONParserHandleEndMap(void *ctx)
{
virJSONParserPtr parser = ctx;
virJSONParserStatePtr state;
VIR_DEBUG("parser=%p", parser);
if (!parser->nstate)
return 0;
state = &(parser->state[parser->nstate-1]);
if (state->key) {
VIR_FREE(state->key);
return 0;
}
if (VIR_REALLOC_N(parser->state,
parser->nstate - 1) < 0)
return 0;
parser->nstate--;
return 1;
}
static int virJSONParserHandleStartArray(void *ctx)
{
virJSONParserPtr parser = ctx;
virJSONValuePtr value = virJSONValueNewArray();
VIR_DEBUG("parser=%p", parser);
if (!value)
return 0;
if (virJSONParserInsertValue(parser, value) < 0) {
virJSONValueFree(value);
return 0;
}
if (VIR_REALLOC_N(parser->state,
parser->nstate + 1) < 0)
return 0;
parser->state[parser->nstate].value = value;
parser->state[parser->nstate].key = NULL;
parser->nstate++;
return 1;
}
static int virJSONParserHandleEndArray(void *ctx)
{
virJSONParserPtr parser = ctx;
virJSONParserStatePtr state;
VIR_DEBUG("parser=%p", parser);
if (!parser->nstate)
return 0;
state = &(parser->state[parser->nstate-1]);
if (state->key) {
VIR_FREE(state->key);
return 0;
}
if (VIR_REALLOC_N(parser->state,
parser->nstate - 1) < 0)
return 0;
parser->nstate--;
return 1;
}
static const yajl_callbacks parserCallbacks = {
virJSONParserHandleNull,
virJSONParserHandleBoolean,
NULL,
NULL,
virJSONParserHandleNumber,
virJSONParserHandleString,
virJSONParserHandleStartMap,
virJSONParserHandleMapKey,
virJSONParserHandleEndMap,
virJSONParserHandleStartArray,
virJSONParserHandleEndArray
};
/* XXX add an incremental streaming parser - yajl trivially supports it */
virJSONValuePtr virJSONValueFromString(const char *jsonstring)
{
yajl_handle hand;
virJSONParser parser = { NULL, NULL, 0 };
virJSONValuePtr ret = NULL;
# ifndef WITH_YAJL2
yajl_parser_config cfg = { 1, 1 };
# endif
VIR_DEBUG("string=%s", jsonstring);
# ifdef WITH_YAJL2
hand = yajl_alloc(&parserCallbacks, NULL, &parser);
if (hand) {
yajl_config(hand, yajl_allow_comments, 1);
yajl_config(hand, yajl_dont_validate_strings, 0);
}
# else
hand = yajl_alloc(&parserCallbacks, &cfg, NULL, &parser);
# endif
if (!hand) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Unable to create JSON parser"));
goto cleanup;
}
if (yajl_parse(hand,
(const unsigned char *)jsonstring,
strlen(jsonstring)) != yajl_status_ok) {
unsigned char *errstr = yajl_get_error(hand, 1,
(const unsigned char*)jsonstring,
strlen(jsonstring));
virReportError(VIR_ERR_INTERNAL_ERROR,
_("cannot parse json %s: %s"),
jsonstring, (const char*) errstr);
VIR_FREE(errstr);
virJSONValueFree(parser.head);
goto cleanup;
}
ret = parser.head;
cleanup:
yajl_free(hand);
if (parser.nstate) {
int i;
for (i = 0 ; i < parser.nstate ; i++) {
VIR_FREE(parser.state[i].key);
}
}
VIR_DEBUG("result=%p", parser.head);
return ret;
}
static int virJSONValueToStringOne(virJSONValuePtr object,
yajl_gen g)
{
int i;
VIR_DEBUG("object=%p type=%d gen=%p", object, object->type, g);
switch (object->type) {
case VIR_JSON_TYPE_OBJECT:
if (yajl_gen_map_open(g) != yajl_gen_status_ok)
return -1;
for (i = 0; i < object->data.object.npairs ; i++) {
if (yajl_gen_string(g,
(unsigned char *)object->data.object.pairs[i].key,
strlen(object->data.object.pairs[i].key))
!= yajl_gen_status_ok)
return -1;
if (virJSONValueToStringOne(object->data.object.pairs[i].value, g) < 0)
return -1;
}
if (yajl_gen_map_close(g) != yajl_gen_status_ok)
return -1;
break;
case VIR_JSON_TYPE_ARRAY:
if (yajl_gen_array_open(g) != yajl_gen_status_ok)
return -1;
for (i = 0; i < object->data.array.nvalues ; i++) {
if (virJSONValueToStringOne(object->data.array.values[i], g) < 0)
return -1;
}
if (yajl_gen_array_close(g) != yajl_gen_status_ok)
return -1;
break;
case VIR_JSON_TYPE_STRING:
if (yajl_gen_string(g, (unsigned char *)object->data.string,
strlen(object->data.string)) != yajl_gen_status_ok)
return -1;
break;
case VIR_JSON_TYPE_NUMBER:
if (yajl_gen_number(g, object->data.number,
strlen(object->data.number)) != yajl_gen_status_ok)
return -1;
break;
case VIR_JSON_TYPE_BOOLEAN:
if (yajl_gen_bool(g, object->data.boolean) != yajl_gen_status_ok)
return -1;
break;
case VIR_JSON_TYPE_NULL:
if (yajl_gen_null(g) != yajl_gen_status_ok)
return -1;
break;
default:
return -1;
}
return 0;
}
char *virJSONValueToString(virJSONValuePtr object,
bool pretty)
{
yajl_gen g;
const unsigned char *str;
char *ret = NULL;
yajl_size_t len;
# ifndef WITH_YAJL2
yajl_gen_config conf = { pretty ? 1 : 0, pretty ? " " : " "};
# endif
VIR_DEBUG("object=%p", object);
# ifdef WITH_YAJL2
g = yajl_gen_alloc(NULL);
if (g) {
yajl_gen_config(g, yajl_gen_beautify, pretty ? 1 : 0);
yajl_gen_config(g, yajl_gen_indent_string, pretty ? " " : " ");
yajl_gen_config(g, yajl_gen_validate_utf8, 1);
}
# else
g = yajl_gen_alloc(&conf, NULL);
# endif
if (!g) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Unable to create JSON formatter"));
goto cleanup;
}
if (virJSONValueToStringOne(object, g) < 0) {
virReportOOMError();
goto cleanup;
}
if (yajl_gen_get_buf(g, &str, &len) != yajl_gen_status_ok) {
virReportOOMError();
goto cleanup;
}
if (!(ret = strdup((const char *)str)))
virReportOOMError();
cleanup:
yajl_gen_free(g);
VIR_DEBUG("result=%s", NULLSTR(ret));
return ret;
}
#else
virJSONValuePtr virJSONValueFromString(const char *jsonstring ATTRIBUTE_UNUSED)
{
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("No JSON parser implementation is available"));
return NULL;
}
char *virJSONValueToString(virJSONValuePtr object ATTRIBUTE_UNUSED,
bool pretty ATTRIBUTE_UNUSED)
{
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("No JSON parser implementation is available"));
return NULL;
}
#endif