blob: 355b5449f18428be81b94eb52d5a45c51ad8676c [file] [log] [blame]
Michal Vasko90932a92020-02-12 14:33:03 +01001/**
2 * @file parser_json.c
3 * @author Radek Krejci <rkrejci@cesnet.cz>
4 * @brief JSON data parser for libyang
5 *
Radek Krejci1798aae2020-07-14 13:26:06 +02006 * Copyright (c) 2020 CESNET, z.s.p.o.
Michal Vasko90932a92020-02-12 14:33:03 +01007 *
8 * This source code is licensed under BSD 3-Clause License (the "License").
9 * You may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
11 *
12 * https://opensource.org/licenses/BSD-3-Clause
13 */
14
Radek Krejci535ea9f2020-05-29 16:01:05 +020015#define _GNU_SOURCE
Michal Vasko90932a92020-02-12 14:33:03 +010016
Radek Krejci1798aae2020-07-14 13:26:06 +020017#include <assert.h>
Radek Krejci47fab892020-11-05 17:02:41 +010018#include <stdint.h>
Michal Vasko90932a92020-02-12 14:33:03 +010019#include <stdlib.h>
20#include <string.h>
21
Radek Krejci535ea9f2020-05-29 16:01:05 +020022#include "common.h"
Michal Vaskoca0b23b2022-01-06 11:40:10 +010023#include "compat.h"
Michal Vasko90932a92020-02-12 14:33:03 +010024#include "context.h"
Radek Krejci47fab892020-11-05 17:02:41 +010025#include "dict.h"
Michal Vaskoafac7822020-10-20 14:22:26 +020026#include "in_internal.h"
Radek Krejci1798aae2020-07-14 13:26:06 +020027#include "json.h"
Radek Krejci47fab892020-11-05 17:02:41 +010028#include "log.h"
Radek Krejci77114102021-03-10 15:21:57 +010029#include "parser_data.h"
Radek Krejci1798aae2020-07-14 13:26:06 +020030#include "parser_internal.h"
Radek Krejci47fab892020-11-05 17:02:41 +010031#include "set.h"
32#include "tree.h"
Radek Krejci1798aae2020-07-14 13:26:06 +020033#include "tree_data.h"
34#include "tree_data_internal.h"
35#include "tree_schema.h"
Radek Krejci47fab892020-11-05 17:02:41 +010036#include "tree_schema_internal.h"
Radek Krejci1798aae2020-07-14 13:26:06 +020037#include "validation.h"
Michal Vasko90932a92020-02-12 14:33:03 +010038
39/**
Radek Krejci1798aae2020-07-14 13:26:06 +020040 * @brief Free the JSON data parser context.
41 *
42 * JSON implementation of lyd_ctx_free_clb().
43 */
44static void
45lyd_json_ctx_free(struct lyd_ctx *lydctx)
46{
47 struct lyd_json_ctx *ctx = (struct lyd_json_ctx *)lydctx;
48
49 if (lydctx) {
50 lyd_ctx_free(lydctx);
51 lyjson_ctx_free(ctx->jsonctx);
52 free(ctx);
53 }
54}
55
56/**
aPiecekd2c39372021-06-16 14:03:12 +020057 * @brief Submit the responsibility for releasing the dynamic values to @p dst.
58 *
59 * @param[in] jsonctx JSON context which contains the dynamic value.
60 * @param[in,out] dst Pointer to which the responsibility will be submited.
61 * If the pointer is already pointing to some allocated memory,
62 * it is released beforehand.
63 */
64static void
65lyjson_ctx_submit_dynamic_value(struct lyjson_ctx *jsonctx, char **dst)
66{
67 assert(jsonctx && dst);
68
69 if (!jsonctx->dynamic) {
70 return;
71 }
72
73 if (dst) {
74 free(*dst);
75 }
76 *dst = NULL;
77
78 /* Submit the dynamic value. */
79 *dst = (char *)jsonctx->value;
80
81 /* Responsibility for the release is now passed to @p dst. */
82 jsonctx->dynamic = 0;
83}
84
85/**
Radek Krejci1798aae2020-07-14 13:26:06 +020086 * @brief Parse JSON member-name as [\@][prefix:][name]
87 *
Michal Vaskocabe0702020-08-12 10:14:36 +020088 * \@ - metadata flag, maps to 1 in @p is_meta_p
Radek Krejci1798aae2020-07-14 13:26:06 +020089 * prefix - name of the module of the data node
90 * name - name of the data node
91 *
92 * All the output parameter are mandatory. Function only parse the member-name, all the appropriate checks are up to the caller.
93 *
94 * @param[in] value String to parse
95 * @param[in] value_len Length of the @p str.
96 * @param[out] name_p Pointer to the beginning of the parsed name.
97 * @param[out] name_len_p Pointer to the length of the parsed name.
98 * @param[out] prefix_p Pointer to the beginning of the parsed prefix. If the member-name does not contain prefix, result is NULL.
99 * @param[out] prefix_len_p Pointer to the length of the parsed prefix. If the member-name does not contain prefix, result is 0.
Michal Vaskocabe0702020-08-12 10:14:36 +0200100 * @param[out] is_meta_p Pointer to the metadata flag, set to 1 if the member-name contains \@, 0 otherwise.
Radek Krejci1798aae2020-07-14 13:26:06 +0200101 */
102static void
Michal Vaskocabe0702020-08-12 10:14:36 +0200103lydjson_parse_name(const char *value, size_t value_len, const char **name_p, size_t *name_len_p, const char **prefix_p,
Radek Krejci857189e2020-09-01 13:26:36 +0200104 size_t *prefix_len_p, ly_bool *is_meta_p)
Radek Krejci1798aae2020-07-14 13:26:06 +0200105{
106 const char *name, *prefix = NULL;
107 size_t name_len, prefix_len = 0;
Radek Krejci857189e2020-09-01 13:26:36 +0200108 ly_bool is_meta = 0;
Radek Krejci1798aae2020-07-14 13:26:06 +0200109
110 name = memchr(value, ':', value_len);
111 if (name != NULL) {
112 prefix = value;
113 if (*prefix == '@') {
Michal Vaskocabe0702020-08-12 10:14:36 +0200114 is_meta = 1;
Radek Krejci1798aae2020-07-14 13:26:06 +0200115 prefix++;
116 }
117 prefix_len = name - prefix;
118 name++;
Michal Vaskocabe0702020-08-12 10:14:36 +0200119 name_len = value_len - (prefix_len + 1) - is_meta;
Radek Krejci1798aae2020-07-14 13:26:06 +0200120 } else {
121 name = value;
122 if (name[0] == '@') {
Michal Vaskocabe0702020-08-12 10:14:36 +0200123 is_meta = 1;
Radek Krejci1798aae2020-07-14 13:26:06 +0200124 name++;
125 }
Michal Vaskocabe0702020-08-12 10:14:36 +0200126 name_len = value_len - is_meta;
Michal Vasko90932a92020-02-12 14:33:03 +0100127 }
128
Radek Krejci1798aae2020-07-14 13:26:06 +0200129 *name_p = name;
130 *name_len_p = name_len;
131 *prefix_p = prefix;
132 *prefix_len_p = prefix_len;
Michal Vaskocabe0702020-08-12 10:14:36 +0200133 *is_meta_p = is_meta;
Radek Krejci1798aae2020-07-14 13:26:06 +0200134}
135
136/**
137 * @brief Get correct prefix (module_name) inside the @p node.
138 *
139 * @param[in] node Data node to get inherited prefix.
140 * @param[in] local_prefix Local prefix to replace the inherited prefix.
141 * @param[in] local_prefix_len Length of the @p local_prefix string. In case of 0, the inherited prefix is taken.
142 * @param[out] prefix_p Pointer to the resulting prefix string, Note that the result can be NULL in case of no local prefix
143 * and no context @p node to get inherited prefix.
144 * @param[out] prefix_len_p Pointer to the length of the resulting @p prefix_p string. Note that the result can be 0 in case
145 * of no local prefix and no context @p node to get inherited prefix.
146 * @return LY_ERR value.
147 */
148static LY_ERR
Michal Vaskoa5da3292020-08-12 13:10:50 +0200149lydjson_get_node_prefix(struct lyd_node *node, const char *local_prefix, size_t local_prefix_len, const char **prefix_p,
Radek Krejci0f969882020-08-21 16:56:47 +0200150 size_t *prefix_len_p)
Radek Krejci1798aae2020-07-14 13:26:06 +0200151{
152 struct lyd_node_opaq *onode;
153 const char *module_name = NULL;
154
155 assert(prefix_p && prefix_len_p);
156
157 if (local_prefix_len) {
158 *prefix_p = local_prefix;
159 *prefix_len_p = local_prefix_len;
160 return LY_SUCCESS;
161 }
162
163 *prefix_p = NULL;
164 while (node) {
165 if (node->schema) {
166 *prefix_p = node->schema->module->name;
167 break;
168 }
Michal Vasko22df3f02020-08-24 13:29:22 +0200169 onode = (struct lyd_node_opaq *)node;
Michal Vaskoad92b672020-11-12 13:11:31 +0100170 if (onode->name.module_name) {
171 *prefix_p = onode->name.module_name;
Radek Krejci1798aae2020-07-14 13:26:06 +0200172 break;
Michal Vaskoad92b672020-11-12 13:11:31 +0100173 } else if (onode->name.prefix) {
174 *prefix_p = onode->name.prefix;
Radek Krejci1798aae2020-07-14 13:26:06 +0200175 break;
176 }
Michal Vasko9e685082021-01-29 14:49:09 +0100177 node = lyd_parent(node);
Radek Krejci1798aae2020-07-14 13:26:06 +0200178 }
179 *prefix_len_p = ly_strlen(module_name);
180
181 return LY_SUCCESS;
182}
183
184/**
185 * @brief Get schema node corresponding to the input parameters.
186 *
187 * @param[in] lydctx JSON data parser context.
188 * @param[in] is_attr Flag if the reference to the node is an attribute, for logging only.
189 * @param[in] prefix Requested node's prefix (module name).
190 * @param[in] prefix_len Length of the @p prefix.
191 * @param[in] name Requested node's name.
192 * @param[in] name_len Length of the @p name.
Michal Vasko2552ea32020-12-08 15:32:34 +0100193 * @param[in] parent Parent of the node being processed, can be NULL in case of top-level.
Radek Krejci1798aae2020-07-14 13:26:06 +0200194 * @param[out] snode_p Pointer to the found schema node corresponding to the input parameters.
195 * @return LY_SUCCES on success, note that even in this case the returned value of @p snode_p can be NULL, so the data are expected to be parsed as opaq.
196 * @return LY_EVALID on failure, error message is logged
197 * @return LY_ENOT in case the input data are expected to be skipped
198 */
199static LY_ERR
Radek Krejci857189e2020-09-01 13:26:36 +0200200lydjson_get_snode(const struct lyd_json_ctx *lydctx, ly_bool is_attr, const char *prefix, size_t prefix_len, const char *name,
Radek Krejci0f969882020-08-21 16:56:47 +0200201 size_t name_len, const struct lyd_node_inner *parent, const struct lysc_node **snode_p)
Radek Krejci1798aae2020-07-14 13:26:06 +0200202{
Radek Krejci2efc45b2020-12-22 16:25:44 +0100203 LY_ERR ret = LY_SUCCESS;
Radek Krejci1798aae2020-07-14 13:26:06 +0200204 struct lys_module *mod = NULL;
Michal Vasko7b1ad1a2020-11-02 15:41:27 +0100205 uint32_t getnext_opts = lydctx->int_opts & LYD_INTOPT_REPLY ? LYS_GETNEXT_OUTPUT : 0;
Radek Krejci1798aae2020-07-14 13:26:06 +0200206
207 /* init return value */
208 *snode_p = NULL;
209
Michal Vasko9e543402021-06-11 13:55:30 +0200210 LOG_LOCSET(NULL, parent ? &parent->node : NULL, NULL, NULL);
Radek Krejci2efc45b2020-12-22 16:25:44 +0100211
Radek Krejci1798aae2020-07-14 13:26:06 +0200212 /* get the element module */
Michal Vasko2552ea32020-12-08 15:32:34 +0100213 if (prefix_len) {
Radek Krejci1798aae2020-07-14 13:26:06 +0200214 mod = ly_ctx_get_module_implemented2(lydctx->jsonctx->ctx, prefix, prefix_len);
215 } else if (parent) {
216 if (parent->schema) {
217 mod = parent->schema->module;
218 }
219 } else {
Radek Krejci2efc45b2020-12-22 16:25:44 +0100220 LOGVAL(lydctx->jsonctx->ctx, LYVE_SYNTAX_JSON, "Top-level JSON object member \"%.*s\" must be namespace-qualified.",
Radek Krejci422afb12021-03-04 16:38:16 +0100221 (int)(is_attr ? name_len + 1 : name_len), is_attr ? name - 1 : name);
Radek Krejci2efc45b2020-12-22 16:25:44 +0100222 ret = LY_EVALID;
223 goto cleanup;
Radek Krejci1798aae2020-07-14 13:26:06 +0200224 }
225 if (!mod) {
Michal Vaskoe0665742021-02-11 11:08:44 +0100226 if (lydctx->parse_opts & LYD_PARSE_STRICT) {
Radek Krejci422afb12021-03-04 16:38:16 +0100227 LOGVAL(lydctx->jsonctx->ctx, LYVE_REFERENCE, "No module named \"%.*s\" in the context.", (int)prefix_len, prefix);
Radek Krejci2efc45b2020-12-22 16:25:44 +0100228 ret = LY_EVALID;
229 goto cleanup;
Radek Krejci1798aae2020-07-14 13:26:06 +0200230 }
Michal Vaskoe0665742021-02-11 11:08:44 +0100231 if (!(lydctx->parse_opts & LYD_PARSE_OPAQ)) {
Radek Krejci2efc45b2020-12-22 16:25:44 +0100232 ret = LY_ENOT;
233 goto cleanup;
Radek Krejci1798aae2020-07-14 13:26:06 +0200234 }
235 }
236
Radek Krejci1798aae2020-07-14 13:26:06 +0200237 /* get the schema node */
Michal Vasko5d54ad72021-07-22 15:36:01 +0200238 if (mod && (!parent || parent->schema)) {
Radek Krejcif16e2542021-02-17 15:39:23 +0100239 if (!parent && lydctx->ext) {
Radek Krejciba05eab2021-03-10 13:19:29 +0100240 *snode_p = lysc_ext_find_node(lydctx->ext, mod, name, name_len, 0, getnext_opts);
Radek Krejcif16e2542021-02-17 15:39:23 +0100241 } else {
242 *snode_p = lys_find_child(parent ? parent->schema : NULL, mod, name, name_len, 0, getnext_opts);
243 }
Radek Krejci1798aae2020-07-14 13:26:06 +0200244 if (!*snode_p) {
Michal Vaskoe0665742021-02-11 11:08:44 +0100245 if (lydctx->parse_opts & LYD_PARSE_STRICT) {
Radek Krejcif16e2542021-02-17 15:39:23 +0100246 if (lydctx->ext) {
247 if (lydctx->ext->argument) {
248 LOGVAL(lydctx->jsonctx->ctx, LYVE_REFERENCE, "Node \"%.*s\" not found in the \"%s\" %s extension instance.",
Radek Krejci422afb12021-03-04 16:38:16 +0100249 (int)name_len, name, lydctx->ext->argument, lydctx->ext->def->name);
Radek Krejcif16e2542021-02-17 15:39:23 +0100250 } else {
251 LOGVAL(lydctx->jsonctx->ctx, LYVE_REFERENCE, "Node \"%.*s\" not found in the %s extension instance.",
Radek Krejci422afb12021-03-04 16:38:16 +0100252 (int)name_len, name, lydctx->ext->def->name);
Radek Krejcif16e2542021-02-17 15:39:23 +0100253 }
254 } else {
255 LOGVAL(lydctx->jsonctx->ctx, LYVE_REFERENCE, "Node \"%.*s\" not found in the \"%s\" module.",
Radek Krejci422afb12021-03-04 16:38:16 +0100256 (int)name_len, name, mod->name);
Radek Krejcif16e2542021-02-17 15:39:23 +0100257 }
Radek Krejci2efc45b2020-12-22 16:25:44 +0100258 ret = LY_EVALID;
259 goto cleanup;
Michal Vaskoe0665742021-02-11 11:08:44 +0100260 } else if (!(lydctx->parse_opts & LYD_PARSE_OPAQ)) {
Radek Krejci1798aae2020-07-14 13:26:06 +0200261 /* skip element with children */
Radek Krejci2efc45b2020-12-22 16:25:44 +0100262 ret = LY_ENOT;
263 goto cleanup;
Radek Krejci1798aae2020-07-14 13:26:06 +0200264 }
265 } else {
266 /* check that schema node is valid and can be used */
Radek Krejci2efc45b2020-12-22 16:25:44 +0100267 ret = lyd_parser_check_schema((struct lyd_ctx *)lydctx, *snode_p);
Radek Krejci1798aae2020-07-14 13:26:06 +0200268 }
269 }
270
Radek Krejci2efc45b2020-12-22 16:25:44 +0100271cleanup:
Radek Krejciddace2c2021-01-08 11:30:56 +0100272 LOG_LOCBACK(0, parent ? 1 : 0, 0, 0);
Radek Krejci2efc45b2020-12-22 16:25:44 +0100273 return ret;
Radek Krejci1798aae2020-07-14 13:26:06 +0200274}
275
276/**
277 * @brief Skip the currently open JSON object/array
278 * @param[in] jsonctx JSON context with the input data to skip.
279 * @return LY_ERR value.
280 */
281static LY_ERR
282lydjson_data_skip(struct lyjson_ctx *jsonctx)
283{
284 enum LYJSON_PARSER_STATUS status, current;
285 size_t sublevels = 1;
286
287 status = lyjson_ctx_status(jsonctx, 0);
288
289 /* skip after the content */
290 do {
Juraj Vijtiuk2e883682021-09-20 17:00:56 +0200291 uint32_t prev_depth = jsonctx->depth;
292
Radek Krejci1798aae2020-07-14 13:26:06 +0200293 LY_CHECK_RET(lyjson_ctx_next(jsonctx, &current));
Juraj Vijtiuk2e883682021-09-20 17:00:56 +0200294
Radek Krejci1798aae2020-07-14 13:26:06 +0200295 if (current == status) {
Juraj Vijtiuk2e883682021-09-20 17:00:56 +0200296 /* lyjson_ctx_next() can return LYSJON_OBJECT in two cases, either when
297 * a new object is encountered, or when it finishes parsing a value from a
298 * previous key-value pair. In the latter case the sublevel shouldn't increase.
299 */
300 if ((status == LYJSON_OBJECT) && (prev_depth == jsonctx->depth)) {
301 continue;
302 }
303
Radek Krejci1798aae2020-07-14 13:26:06 +0200304 sublevels++;
Juraj Vijtiuk2e883682021-09-20 17:00:56 +0200305 } else if ((status == LYJSON_OBJECT) && (current == LYJSON_OBJECT_CLOSED)) {
Juraj Vijtiuk46eb15e2021-09-06 15:38:36 +0200306 sublevels--;
Radek Krejci1798aae2020-07-14 13:26:06 +0200307 }
Michal Vaskoc2da3072022-01-03 11:13:25 +0100308 } while ((current != status + 1) || sublevels);
Radek Krejci1798aae2020-07-14 13:26:06 +0200309
310 return LY_SUCCESS;
311}
312
313/**
Radek Krejci1798aae2020-07-14 13:26:06 +0200314 * @brief Check that the input data are parseable as the @p list.
315 *
316 * Checks for all the list's keys. Function does not revert the context state.
317 *
318 * @param[in] jsonctx JSON parser context.
319 * @param[in] list List schema node corresponding to the input data object.
320 * @return LY_SUCCESS in case the data are ok for the @p list
321 * @return LY_ENOT in case the input data are not sufficient to fully parse the list instance.
322 */
323static LY_ERR
324lydjson_check_list(struct lyjson_ctx *jsonctx, const struct lysc_node *list)
325{
326 LY_ERR ret = LY_SUCCESS;
327 enum LYJSON_PARSER_STATUS status = lyjson_ctx_status(jsonctx, 0);
328 struct ly_set key_set = {0};
329 const struct lysc_node *snode;
330 uint32_t i, status_count;
331
332 assert(list && (list->nodetype == LYS_LIST));
333 assert(status == LYJSON_OBJECT);
334
335 /* get all keys into a set (keys do not have if-features or anything) */
336 snode = NULL;
Michal Vasko7b1ad1a2020-11-02 15:41:27 +0100337 while ((snode = lys_getnext(snode, list, NULL, 0)) && (snode->flags & LYS_KEY)) {
Radek Krejci3d92e442020-10-12 12:48:13 +0200338 ret = ly_set_add(&key_set, (void *)snode, 1, NULL);
Radek Krejciba03a5a2020-08-27 14:40:41 +0200339 LY_CHECK_GOTO(ret, cleanup);
Radek Krejci1798aae2020-07-14 13:26:06 +0200340 }
341
342 if (status != LYJSON_OBJECT_EMPTY) {
343 status_count = jsonctx->status.count;
344
345 while (key_set.count && status != LYJSON_OBJECT_CLOSED) {
346 const char *name, *prefix;
347 size_t name_len, prefix_len;
Radek Krejci857189e2020-09-01 13:26:36 +0200348 ly_bool is_attr;
Radek Krejci1798aae2020-07-14 13:26:06 +0200349
350 /* match the key */
351 snode = NULL;
352 lydjson_parse_name(jsonctx->value, jsonctx->value_len, &name, &name_len, &prefix, &prefix_len, &is_attr);
353
354 if (!is_attr && !prefix) {
355 for (i = 0; i < key_set.count; ++i) {
356 snode = (const struct lysc_node *)key_set.objs[i];
357 if (!ly_strncmp(snode->name, name, name_len)) {
358 break;
359 }
360 }
361 /* go into the item to a) process it as a key or b) start skipping it as another list child */
362 ret = lyjson_ctx_next(jsonctx, &status);
363 LY_CHECK_GOTO(ret, cleanup);
364
365 if (snode) {
366 /* we have the key, validate the value */
367 if (status < LYJSON_NUMBER) {
368 /* not a terminal */
369 ret = LY_ENOT;
370 goto cleanup;
371 }
372
Radek Krejci8df109d2021-04-23 12:19:08 +0200373 ret = lys_value_validate(NULL, snode, jsonctx->value, jsonctx->value_len, LY_VALUE_JSON, NULL);
Radek Krejci1798aae2020-07-14 13:26:06 +0200374 LY_CHECK_GOTO(ret, cleanup);
375
376 /* key with a valid value, remove from the set */
377 ly_set_rm_index(&key_set, i, NULL);
378 }
379 } else {
380 /* start skipping the member we are not interested in */
381 ret = lyjson_ctx_next(jsonctx, &status);
382 LY_CHECK_GOTO(ret, cleanup);
383 }
384 /* move to the next child */
385 while (status_count < jsonctx->status.count) {
386 ret = lyjson_ctx_next(jsonctx, &status);
387 LY_CHECK_GOTO(ret, cleanup);
388 }
389 }
390 }
391
392 if (key_set.count) {
393 /* some keys are missing/did not validate */
394 ret = LY_ENOT;
395 }
396
397cleanup:
398 ly_set_erase(&key_set, NULL);
399 return ret;
400}
401
402/**
403 * @brief Get the hint for the data type parsers according to the current JSON parser context.
404 *
405 * @param[in] lydctx JSON data parser context. The context is supposed to be on a value.
406 * @param[in,out] status Pointer to the current context status,
407 * in some circumstances the function manipulates with the context so the status is updated.
408 * @param[out] type_hint_p Pointer to the variable to store the result.
409 * @return LY_SUCCESS in case of success.
410 * @return LY_EINVAL in case of invalid context status not referring to a value.
411 */
412static LY_ERR
Radek Krejci1deb5be2020-08-26 16:43:36 +0200413lydjson_value_type_hint(struct lyd_json_ctx *lydctx, enum LYJSON_PARSER_STATUS *status_p, uint32_t *type_hint_p)
Radek Krejci1798aae2020-07-14 13:26:06 +0200414{
415 *type_hint_p = 0;
416
417 if (*status_p == LYJSON_ARRAY) {
418 /* only [null] */
419 LY_CHECK_RET(lyjson_ctx_next(lydctx->jsonctx, status_p));
420 LY_CHECK_RET(*status_p != LYJSON_NULL, LY_EINVAL);
421
422 LY_CHECK_RET(lyjson_ctx_next(lydctx->jsonctx, NULL));
423 LY_CHECK_RET(lyjson_ctx_status(lydctx->jsonctx, 0) != LYJSON_ARRAY_CLOSED, LY_EINVAL);
424
Michal Vaskofeca4fb2020-10-05 08:58:40 +0200425 *type_hint_p = LYD_VALHINT_EMPTY;
Radek Krejci1798aae2020-07-14 13:26:06 +0200426 } else if (*status_p == LYJSON_STRING) {
Michal Vaskofeca4fb2020-10-05 08:58:40 +0200427 *type_hint_p = LYD_VALHINT_STRING | LYD_VALHINT_NUM64;
Radek Krejci1798aae2020-07-14 13:26:06 +0200428 } else if (*status_p == LYJSON_NUMBER) {
Michal Vaskofeca4fb2020-10-05 08:58:40 +0200429 *type_hint_p = LYD_VALHINT_DECNUM;
Michal Vasko69730152020-10-09 16:30:07 +0200430 } else if ((*status_p == LYJSON_FALSE) || (*status_p == LYJSON_TRUE)) {
Michal Vaskofeca4fb2020-10-05 08:58:40 +0200431 *type_hint_p = LYD_VALHINT_BOOLEAN;
Radek Krejci1798aae2020-07-14 13:26:06 +0200432 } else if (*status_p == LYJSON_NULL) {
433 *type_hint_p = 0;
434 } else {
435 return LY_EINVAL;
436 }
437
438 return LY_SUCCESS;
439}
440
441/**
442 * @brief Check in advance if the input data are parsable according to the provided @p snode.
443 *
444 * Note that the checks are done only in case the LYD_PARSE_OPAQ is allowed. Otherwise the same checking
445 * is naturally done when the data are really parsed.
446 *
447 * @param[in] lydctx JSON data parser context. When the function returns, the context is in the same state
448 * as before calling, despite it is necessary to process input data for checking.
449 * @param[in] snode Schema node corresponding to the member currently being processed in the context.
450 * @param[out] type_hint_p Pointer to a variable to store detected value type hint in case of leaf or leaf-list.
451 * @return LY_SUCCESS in case the data are ok for the @p snode or the LYD_PARSE_OPAQ is not enabled.
452 * @return LY_ENOT in case the input data are not sufficient to fully parse the list instance
453 * @return LY_EINVAL in case of invalid leaf JSON encoding
454 * and they are expected to be parsed as opaq nodes.
455 */
456static LY_ERR
Radek Krejci1deb5be2020-08-26 16:43:36 +0200457lydjson_data_check_opaq(struct lyd_json_ctx *lydctx, const struct lysc_node *snode, uint32_t *type_hint_p)
Radek Krejci1798aae2020-07-14 13:26:06 +0200458{
459 LY_ERR ret = LY_SUCCESS;
460 struct lyjson_ctx *jsonctx = lydctx->jsonctx;
461 enum LYJSON_PARSER_STATUS status;
462
463 assert(snode);
Radek Krejci1798aae2020-07-14 13:26:06 +0200464
Michal Vasko32ac9942020-08-12 14:35:12 +0200465 if (!(snode->nodetype & (LYD_NODE_TERM | LYS_LIST))) {
466 /* can always be parsed as a data node if we have the schema node */
467 return LY_SUCCESS;
468 }
469
Michal Vasko85430702021-07-21 14:29:56 +0200470 /* backup parser */
471 lyjson_ctx_backup(jsonctx);
472 status = lyjson_ctx_status(jsonctx, 0);
Radek Krejci1798aae2020-07-14 13:26:06 +0200473
Michal Vasko85430702021-07-21 14:29:56 +0200474 if (lydctx->parse_opts & LYD_PARSE_OPAQ) {
Michal Vasko32ac9942020-08-12 14:35:12 +0200475 /* check if the node is parseable. if not, NULL the snode to announce that it is supposed to be parsed
476 * as an opaq node */
Radek Krejci1798aae2020-07-14 13:26:06 +0200477 switch (snode->nodetype) {
478 case LYS_LEAFLIST:
479 case LYS_LEAF:
480 /* value may not be valid in which case we parse it as an opaque node */
481 ret = lydjson_value_type_hint(lydctx, &status, type_hint_p);
482 if (ret) {
483 break;
484 }
485
Radek Krejci8df109d2021-04-23 12:19:08 +0200486 if (lys_value_validate(NULL, snode, jsonctx->value, jsonctx->value_len, LY_VALUE_JSON, NULL)) {
Radek Krejci1798aae2020-07-14 13:26:06 +0200487 ret = LY_ENOT;
488 }
489 break;
490 case LYS_LIST:
491 /* lists may not have all its keys */
492 if (lydjson_check_list(jsonctx, snode)) {
493 /* invalid list, parse as opaque if it missing/has invalid some keys */
494 ret = LY_ENOT;
495 }
Michal Vasko32ac9942020-08-12 14:35:12 +0200496 break;
Radek Krejci1798aae2020-07-14 13:26:06 +0200497 }
Michal Vasko32ac9942020-08-12 14:35:12 +0200498 } else if (snode->nodetype & LYD_NODE_TERM) {
Radek Krejci1798aae2020-07-14 13:26:06 +0200499 status = lyjson_ctx_status(jsonctx, 0);
500 ret = lydjson_value_type_hint(lydctx, &status, type_hint_p);
501 }
502
Michal Vasko85430702021-07-21 14:29:56 +0200503 /* restore parser */
504 lyjson_ctx_restore(jsonctx);
505
Radek Krejci1798aae2020-07-14 13:26:06 +0200506 return ret;
507}
508
509/**
510 * @brief Join the forward-referencing metadata with their target data nodes.
511 *
512 * Note that JSON encoding for YANG data allows forward-referencing metadata only for leafs/leaf-lists.
513 *
514 * @param[in] lydctx JSON data parser context.
515 * @param[in,out] first_p Pointer to the first sibling node variable (top-level or in a particular parent node)
516 * as a starting point to search for the metadata's target data node
517 * @return LY_SUCCESS on success
518 * @return LY_EVALID in case there are some metadata with unresolved target data node instance
519 */
520static LY_ERR
521lydjson_metadata_finish(struct lyd_json_ctx *lydctx, struct lyd_node **first_p)
522{
523 LY_ERR ret = LY_SUCCESS;
aPiecek5057c2e2021-05-17 10:28:03 +0200524 struct lyd_node *node, *attr, *next, *meta_iter;
Radek Krejci1deb5be2020-08-26 16:43:36 +0200525 uint64_t instance = 0;
Radek Krejci1798aae2020-07-14 13:26:06 +0200526 const char *prev = NULL;
Radek Krejci2efc45b2020-12-22 16:25:44 +0100527 uint32_t log_location_items = 0;
Radek Krejci1798aae2020-07-14 13:26:06 +0200528
529 /* finish linking metadata */
530 LY_LIST_FOR_SAFE(*first_p, next, attr) {
Michal Vasko22df3f02020-08-24 13:29:22 +0200531 struct lyd_node_opaq *meta_container = (struct lyd_node_opaq *)attr;
Radek Krejci1deb5be2020-08-26 16:43:36 +0200532 uint64_t match = 0;
Radek Krejci857189e2020-09-01 13:26:36 +0200533 ly_bool is_attr;
Radek Krejci1798aae2020-07-14 13:26:06 +0200534 const char *name, *prefix;
535 size_t name_len, prefix_len;
536 const struct lysc_node *snode;
537
Michal Vaskoad92b672020-11-12 13:11:31 +0100538 if (attr->schema || (meta_container->name.name[0] != '@')) {
Radek Krejci1798aae2020-07-14 13:26:06 +0200539 /* not an opaq metadata node */
540 continue;
541 }
542
Radek Krejciddace2c2021-01-08 11:30:56 +0100543 LOG_LOCSET(NULL, attr, NULL, NULL);
Radek Krejci2efc45b2020-12-22 16:25:44 +0100544 log_location_items++;
545
Michal Vaskoad92b672020-11-12 13:11:31 +0100546 if (prev != meta_container->name.name) {
Radek Krejci1798aae2020-07-14 13:26:06 +0200547 /* metas' names are stored in dictionary, so checking pointers must works */
548 lydict_remove(lydctx->jsonctx->ctx, prev);
Michal Vaskoad92b672020-11-12 13:11:31 +0100549 LY_CHECK_GOTO(ret = lydict_insert(lydctx->jsonctx->ctx, meta_container->name.name, 0, &prev), cleanup);
Radek Krejci1798aae2020-07-14 13:26:06 +0200550 instance = 1;
551 } else {
552 instance++;
553 }
554
aPiecek5057c2e2021-05-17 10:28:03 +0200555 /* find the corresponding data node */
556 LY_LIST_FOR(*first_p, node) {
Radek Krejci1798aae2020-07-14 13:26:06 +0200557 if (!node->schema) {
558 /* opaq node - we are going to put into it just a generic attribute. */
Michal Vaskoad92b672020-11-12 13:11:31 +0100559 if (strcmp(&meta_container->name.name[1], ((struct lyd_node_opaq *)node)->name.name)) {
Radek Krejci1798aae2020-07-14 13:26:06 +0200560 continue;
561 }
562
Michal Vaskofeca4fb2020-10-05 08:58:40 +0200563 if (((struct lyd_node_opaq *)node)->hints & LYD_NODEHINT_LIST) {
Radek Krejci2efc45b2020-12-22 16:25:44 +0100564 LOGVAL(lydctx->jsonctx->ctx, LYVE_SYNTAX, "Metadata container references a sibling list node %s.",
565 ((struct lyd_node_opaq *)node)->name.name);
Radek Krejci1798aae2020-07-14 13:26:06 +0200566 ret = LY_EVALID;
567 goto cleanup;
568 }
569
570 /* match */
571 match++;
572 if (match != instance) {
573 continue;
574 }
575
576 LY_LIST_FOR(meta_container->child, meta_iter) {
577 /* convert opaq node to a attribute of the opaq node */
Michal Vasko22df3f02020-08-24 13:29:22 +0200578 struct lyd_node_opaq *meta = (struct lyd_node_opaq *)meta_iter;
Radek Krejcibb27df32020-11-13 15:39:16 +0100579
Michal Vaskoad92b672020-11-12 13:11:31 +0100580 ret = lyd_create_attr(node, NULL, lydctx->jsonctx->ctx, meta->name.name, strlen(meta->name.name),
581 meta->name.prefix, ly_strlen(meta->name.prefix), meta->name.module_name,
Radek Krejci8df109d2021-04-23 12:19:08 +0200582 ly_strlen(meta->name.module_name), meta->value, ly_strlen(meta->value), NULL, LY_VALUE_JSON,
Michal Vaskoad92b672020-11-12 13:11:31 +0100583 NULL, meta->hints);
Radek Krejci1798aae2020-07-14 13:26:06 +0200584 LY_CHECK_GOTO(ret, cleanup);
585 }
586
587 /* done */
588 break;
589 } else {
590 /* this is the second time we are resolving the schema node, so it must succeed,
591 * but remember that snode can be still NULL */
Michal Vaskoad92b672020-11-12 13:11:31 +0100592 lydjson_parse_name(meta_container->name.name, strlen(meta_container->name.name), &name, &name_len,
593 &prefix, &prefix_len, &is_attr);
Radek Krejci1798aae2020-07-14 13:26:06 +0200594 assert(is_attr);
595 ret = lydjson_get_snode(lydctx, is_attr, prefix, prefix_len, name, name_len, (*first_p)->parent, &snode);
596 assert(ret == LY_SUCCESS);
597
598 if (snode != node->schema) {
599 continue;
600 }
601
602 /* match */
603 match++;
604 if (match != instance) {
605 continue;
606 }
607
608 LY_LIST_FOR(meta_container->child, meta_iter) {
609 /* convert opaq node to a metadata of the node */
Michal Vasko22df3f02020-08-24 13:29:22 +0200610 struct lyd_node_opaq *meta = (struct lyd_node_opaq *)meta_iter;
Radek Krejci1798aae2020-07-14 13:26:06 +0200611 struct lys_module *mod = NULL;
Radek Krejci1798aae2020-07-14 13:26:06 +0200612
Michal Vaskoad92b672020-11-12 13:11:31 +0100613 mod = ly_ctx_get_module_implemented(lydctx->jsonctx->ctx, meta->name.prefix);
Radek Krejci1798aae2020-07-14 13:26:06 +0200614 if (mod) {
Michal Vasko22df3f02020-08-24 13:29:22 +0200615 ret = lyd_parser_create_meta((struct lyd_ctx *)lydctx, node, NULL, mod,
Michal Vaskoad92b672020-11-12 13:11:31 +0100616 meta->name.name, strlen(meta->name.name), meta->value, ly_strlen(meta->value),
Michal Vasko02cf2662021-07-22 15:36:29 +0200617 NULL, LY_VALUE_JSON, NULL, meta->hints);
Radek Krejci1798aae2020-07-14 13:26:06 +0200618 LY_CHECK_GOTO(ret, cleanup);
Michal Vaskoe0665742021-02-11 11:08:44 +0100619 } else if (lydctx->parse_opts & LYD_PARSE_STRICT) {
Michal Vasko4eab5622021-07-22 15:36:45 +0200620 if (meta->name.prefix) {
621 LOGVAL(lydctx->jsonctx->ctx, LYVE_REFERENCE,
622 "Unknown (or not implemented) YANG module \"%s\" of metadata \"%s%s%s\".",
623 meta->name.prefix, meta->name.prefix, ly_strlen(meta->name.prefix) ? ":" : "",
624 meta->name.name);
625 } else {
626 LOGVAL(lydctx->jsonctx->ctx, LYVE_REFERENCE, "Missing YANG module of metadata \"%s\".",
627 meta->name.name);
628 }
Radek Krejci1798aae2020-07-14 13:26:06 +0200629 ret = LY_EVALID;
630 goto cleanup;
631 }
632 }
633 /* add/correct flags */
Radek Krejci4f2e3e52021-03-30 14:20:28 +0200634 lyd_parse_set_data_flags(node, &lydctx->node_when, &lydctx->node_exts, &node->meta, lydctx->parse_opts);
Radek Krejci1798aae2020-07-14 13:26:06 +0200635
636 /* done */
637 break;
638 }
639 }
640
641 if (match != instance) {
642 /* there is no corresponding data node for the metadata */
643 if (instance > 1) {
Michal Vasko54ba8912021-07-23 12:46:23 +0200644 LOGVAL(lydctx->jsonctx->ctx, LYVE_REFERENCE, "Missing JSON data instance #%" PRIu64 " to be coupled with %s metadata.",
645 instance, meta_container->name.name);
Radek Krejci1798aae2020-07-14 13:26:06 +0200646 } else {
Radek Krejci2efc45b2020-12-22 16:25:44 +0100647 LOGVAL(lydctx->jsonctx->ctx, LYVE_REFERENCE, "Missing JSON data instance to be coupled with %s metadata.",
648 meta_container->name.name);
Radek Krejci1798aae2020-07-14 13:26:06 +0200649 }
650 ret = LY_EVALID;
651 } else {
652 /* remove the opaq attr */
653 if (attr == (*first_p)) {
aPiecek5057c2e2021-05-17 10:28:03 +0200654 *first_p = attr->next;
Radek Krejci1798aae2020-07-14 13:26:06 +0200655 }
656 lyd_free_tree(attr);
657 }
Radek Krejci2efc45b2020-12-22 16:25:44 +0100658
Radek Krejciddace2c2021-01-08 11:30:56 +0100659 LOG_LOCBACK(0, log_location_items, 0, 0);
Radek Krejci2efc45b2020-12-22 16:25:44 +0100660 log_location_items = 0;
Radek Krejci1798aae2020-07-14 13:26:06 +0200661 }
662
663cleanup:
664 lydict_remove(lydctx->jsonctx->ctx, prev);
665
Radek Krejciddace2c2021-01-08 11:30:56 +0100666 LOG_LOCBACK(0, log_location_items, 0, 0);
Radek Krejci1798aae2020-07-14 13:26:06 +0200667 return ret;
668}
669
670/**
671 * @brief Parse a metadata member.
672 *
673 * @param[in] lydctx JSON data parser context.
674 * @param[in] snode Schema node of the metadata parent.
675 * @param[in] node Parent node in case the metadata is not forward-referencing (only LYD_NODE_TERM)
676 * so the data node does not exists. In such a case the metadata is stored in the context for the later
677 * processing by lydjson_metadata_finish().
678 * @return LY_SUCCESS on success
679 * @return Various LY_ERR values in case of failure.
680 */
681static LY_ERR
682lydjson_metadata(struct lyd_json_ctx *lydctx, const struct lysc_node *snode, struct lyd_node *node)
683{
684 LY_ERR ret = LY_SUCCESS;
685 enum LYJSON_PARSER_STATUS status;
686 const char *expected;
Radek Krejci857189e2020-09-01 13:26:36 +0200687 ly_bool in_parent = 0;
Radek Krejci1798aae2020-07-14 13:26:06 +0200688 const char *name, *prefix = NULL;
aPiecek303fb252021-06-16 11:54:26 +0200689 char *dynamic_prefname = NULL;
Radek Krejci1798aae2020-07-14 13:26:06 +0200690 size_t name_len, prefix_len = 0;
691 struct lys_module *mod;
692 struct lyd_meta *meta = NULL;
693 const struct ly_ctx *ctx = lydctx->jsonctx->ctx;
Radek Krejci857189e2020-09-01 13:26:36 +0200694 ly_bool is_attr = 0;
Radek Krejci1798aae2020-07-14 13:26:06 +0200695 struct lyd_node *prev = node;
Radek Krejci1deb5be2020-08-26 16:43:36 +0200696 uint32_t instance = 0;
Radek Krejci1798aae2020-07-14 13:26:06 +0200697 uint16_t nodetype;
698
699 assert(snode || node);
700
701 nodetype = snode ? snode->nodetype : LYS_CONTAINER;
702
703 /* move to the second item in the name/X pair */
704 ret = lyjson_ctx_next(lydctx->jsonctx, &status);
705 LY_CHECK_GOTO(ret, cleanup);
706
707 /* check attribute encoding */
708 switch (nodetype) {
709 case LYS_LEAFLIST:
710 expected = "@name/array of objects/nulls";
711
712 LY_CHECK_GOTO(status != LYJSON_ARRAY, representation_error);
713
714next_entry:
715 instance++;
716
717 /* move into array / next entry */
718 ret = lyjson_ctx_next(lydctx->jsonctx, &status);
719 LY_CHECK_GOTO(ret, cleanup);
720
721 if (status == LYJSON_ARRAY_CLOSED) {
722 /* we are done, move after the array */
723 ret = lyjson_ctx_next(lydctx->jsonctx, NULL);
724 goto cleanup;
725 }
726 LY_CHECK_GOTO(status != LYJSON_OBJECT && status != LYJSON_NULL, representation_error);
727
Michal Vasko69730152020-10-09 16:30:07 +0200728 if (!node || (node->schema != prev->schema)) {
Michal Vasko54ba8912021-07-23 12:46:23 +0200729 LOGVAL(lydctx->jsonctx->ctx, LYVE_REFERENCE, "Missing JSON data instance #%u of %s:%s to be coupled with metadata.",
Michal Vasko69730152020-10-09 16:30:07 +0200730 instance, prev->schema->module->name, prev->schema->name);
Radek Krejci1798aae2020-07-14 13:26:06 +0200731 ret = LY_EVALID;
732 goto cleanup;
733 }
734
735 if (status == LYJSON_NULL) {
736 /* continue with the next entry in the leaf-list array */
737 prev = node;
738 node = node->next;
739 goto next_entry;
740 }
741 break;
742 case LYS_LEAF:
743 case LYS_ANYXML:
744 expected = "@name/object";
745
aPiecek5b115fc2021-05-24 14:32:42 +0200746 LY_CHECK_GOTO(status != LYJSON_OBJECT, representation_error);
Radek Krejci1798aae2020-07-14 13:26:06 +0200747 break;
748 case LYS_CONTAINER:
749 case LYS_LIST:
750 case LYS_ANYDATA:
751 case LYS_NOTIF:
752 case LYS_ACTION:
753 case LYS_RPC:
754 in_parent = 1;
755 expected = "@/object";
756 LY_CHECK_GOTO(status != LYJSON_OBJECT, representation_error);
757 break;
Radek Krejci8f5fad22020-09-15 16:50:54 +0200758 default:
759 LOGINT_RET(ctx);
Radek Krejci1798aae2020-07-14 13:26:06 +0200760 }
761
762 /* process all the members inside a single metadata object */
763 assert(status == LYJSON_OBJECT);
764
Radek Krejciddace2c2021-01-08 11:30:56 +0100765 LOG_LOCSET(snode, NULL, NULL, NULL);
Radek Krejci2efc45b2020-12-22 16:25:44 +0100766
Radek Krejci1798aae2020-07-14 13:26:06 +0200767 while (status != LYJSON_OBJECT_CLOSED) {
aPiecekd2c39372021-06-16 14:03:12 +0200768 lydjson_parse_name(lydctx->jsonctx->value, lydctx->jsonctx->value_len, &name, &name_len, &prefix, &prefix_len, &is_attr);
769 lyjson_ctx_submit_dynamic_value(lydctx->jsonctx, &dynamic_prefname);
aPiecek303fb252021-06-16 11:54:26 +0200770
Michal Vasko69d0ca12021-07-23 10:22:03 +0200771 if (!name_len) {
772 LOGVAL(ctx, LYVE_SYNTAX_JSON, "Metadata in JSON found with an empty name, followed by: %.10s", name);
773 ret = LY_EVALID;
774 goto cleanup;
775 } else if (!prefix_len) {
Radek Krejci2efc45b2020-12-22 16:25:44 +0100776 LOGVAL(ctx, LYVE_SYNTAX_JSON, "Metadata in JSON must be namespace-qualified, missing prefix for \"%.*s\".",
Radek Krejci422afb12021-03-04 16:38:16 +0100777 (int)lydctx->jsonctx->value_len, lydctx->jsonctx->value);
Radek Krejci1798aae2020-07-14 13:26:06 +0200778 ret = LY_EVALID;
779 goto cleanup;
780 } else if (is_attr) {
Radek Krejci2efc45b2020-12-22 16:25:44 +0100781 LOGVAL(ctx, LYVE_SYNTAX_JSON, "Invalid format of the Metadata identifier in JSON, unexpected '@' in \"%.*s\"",
Radek Krejci422afb12021-03-04 16:38:16 +0100782 (int)lydctx->jsonctx->value_len, lydctx->jsonctx->value);
Radek Krejci1798aae2020-07-14 13:26:06 +0200783 ret = LY_EVALID;
784 goto cleanup;
785 }
786
787 /* get the element module */
788 mod = ly_ctx_get_module_implemented2(ctx, prefix, prefix_len);
789 if (!mod) {
Michal Vaskoe0665742021-02-11 11:08:44 +0100790 if (lydctx->parse_opts & LYD_PARSE_STRICT) {
Radek Krejci2efc45b2020-12-22 16:25:44 +0100791 LOGVAL(ctx, LYVE_REFERENCE, "Prefix \"%.*s\" of the metadata \"%.*s\" does not match any module in the context.",
Radek Krejci422afb12021-03-04 16:38:16 +0100792 (int)prefix_len, prefix, (int)name_len, name);
Radek Krejci1798aae2020-07-14 13:26:06 +0200793 ret = LY_EVALID;
794 goto cleanup;
795 }
Michal Vaskoe0665742021-02-11 11:08:44 +0100796 if (!(lydctx->parse_opts & LYD_PARSE_OPAQ)) {
Radek Krejci1798aae2020-07-14 13:26:06 +0200797 /* skip element with children */
798 ret = lydjson_data_skip(lydctx->jsonctx);
799 LY_CHECK_GOTO(ret, cleanup);
800 status = lyjson_ctx_status(lydctx->jsonctx, 0);
801 /* end of the item */
802 continue;
803 }
804 }
805
806 /* get the value */
807 ret = lyjson_ctx_next(lydctx->jsonctx, NULL);
808 LY_CHECK_GOTO(ret, cleanup);
809
810 if (node->schema) {
811 /* create metadata */
812 meta = NULL;
Michal Vasko22df3f02020-08-24 13:29:22 +0200813 ret = lyd_parser_create_meta((struct lyd_ctx *)lydctx, node, &meta, mod, name, name_len, lydctx->jsonctx->value,
Radek Krejci8df109d2021-04-23 12:19:08 +0200814 lydctx->jsonctx->value_len, &lydctx->jsonctx->dynamic, LY_VALUE_JSON, NULL,
Michal Vasko69730152020-10-09 16:30:07 +0200815 LYD_HINT_DATA);
Radek Krejci1798aae2020-07-14 13:26:06 +0200816 LY_CHECK_GOTO(ret, cleanup);
817
818 /* add/correct flags */
Radek Krejci4f2e3e52021-03-30 14:20:28 +0200819 lyd_parse_set_data_flags(node, &lydctx->node_when, &lydctx->node_exts, &meta, lydctx->parse_opts);
Radek Krejci1798aae2020-07-14 13:26:06 +0200820 } else {
821 /* create attribute */
Radek Krejci1798aae2020-07-14 13:26:06 +0200822 const char *module_name;
823 size_t module_name_len;
824
825 lydjson_get_node_prefix(node, prefix, prefix_len, &module_name, &module_name_len);
826
Radek Krejci1798aae2020-07-14 13:26:06 +0200827 /* attr2 is always changed to the created attribute */
Michal Vasko501af032020-11-11 20:27:44 +0100828 ret = lyd_create_attr(node, NULL, lydctx->jsonctx->ctx, name, name_len, prefix, prefix_len, module_name,
829 module_name_len, lydctx->jsonctx->value, lydctx->jsonctx->value_len, &lydctx->jsonctx->dynamic,
Radek Krejci8df109d2021-04-23 12:19:08 +0200830 LY_VALUE_JSON, NULL, 0);
Radek Krejci1798aae2020-07-14 13:26:06 +0200831 LY_CHECK_GOTO(ret, cleanup);
832 }
833 /* next member */
834 ret = lyjson_ctx_next(lydctx->jsonctx, &status);
835 LY_CHECK_GOTO(ret, cleanup);
aPiecekde3c6922021-05-24 14:42:10 +0200836 LY_CHECK_GOTO((status != LYJSON_OBJECT) && (status != LYJSON_OBJECT_CLOSED), representation_error);
Radek Krejci1798aae2020-07-14 13:26:06 +0200837 }
838
839 if (nodetype == LYS_LEAFLIST) {
840 /* continue by processing another metadata object for the following
841 * leaf-list instance since they are allways instantiated in JSON array */
842 prev = node;
843 node = node->next;
844 goto next_entry;
845 }
846
847 /* move after the metadata */
848 ret = lyjson_ctx_next(lydctx->jsonctx, NULL);
849 LY_CHECK_GOTO(ret, cleanup);
850
Radek Krejci5813c362021-01-05 10:51:57 +0100851 /* success */
852 goto cleanup;
Radek Krejci1798aae2020-07-14 13:26:06 +0200853
854representation_error:
Radek Krejci2efc45b2020-12-22 16:25:44 +0100855 LOGVAL(ctx, LYVE_SYNTAX_JSON,
Michal Vasko69730152020-10-09 16:30:07 +0200856 "The attribute(s) of %s \"%s\" is expected to be represented as JSON %s, but input data contains @%s/%s.",
Michal Vaskoad92b672020-11-12 13:11:31 +0100857 lys_nodetype2str(nodetype), node->schema ? node->schema->name : ((struct lyd_node_opaq *)node)->name.name,
Michal Vasko69730152020-10-09 16:30:07 +0200858 expected, lyjson_token2str(status), in_parent ? "" : "name");
Radek Krejci1798aae2020-07-14 13:26:06 +0200859
Radek Krejci2efc45b2020-12-22 16:25:44 +0100860 ret = LY_EVALID;
Radek Krejci5813c362021-01-05 10:51:57 +0100861
862cleanup:
aPiecek303fb252021-06-16 11:54:26 +0200863 free(dynamic_prefname);
Radek Krejciddace2c2021-01-08 11:30:56 +0100864 LOG_LOCBACK(1, 0, 0, 0);
Radek Krejci5813c362021-01-05 10:51:57 +0100865 return ret;
Radek Krejci1798aae2020-07-14 13:26:06 +0200866}
867
868/**
Michal Vasko6ee6f432021-07-16 09:49:14 +0200869 * @brief Eat the node pointed by @p node_p by inserting it into @p parent and maintain the @p first_p pointing
870 * to the first child node.
Radek Krejci1798aae2020-07-14 13:26:06 +0200871 *
872 * @param[in] parent Parent node to insert to, can be NULL in case of top-level (or provided first_p).
Michal Vasko6ee6f432021-07-16 09:49:14 +0200873 * @param[in,out] first_p Pointer to the first sibling node in case of top-level.
874 * @param[in,out] node_p pointer to the new node to insert, after the insert is done, pointer is set to NULL.
875 * @param[in] last If set, always insert at the end.
Radek Krejci1798aae2020-07-14 13:26:06 +0200876 */
877static void
Michal Vasko6ee6f432021-07-16 09:49:14 +0200878lydjson_maintain_children(struct lyd_node_inner *parent, struct lyd_node **first_p, struct lyd_node **node_p, ly_bool last)
Radek Krejci1798aae2020-07-14 13:26:06 +0200879{
880 if (*node_p) {
881 /* insert, keep first pointer correct */
Michal Vasko6ee6f432021-07-16 09:49:14 +0200882 lyd_insert_node(parent ? &parent->node : NULL, first_p, *node_p, last);
Radek Krejci1798aae2020-07-14 13:26:06 +0200883 if (first_p) {
884 if (parent) {
885 *first_p = parent->child;
886 } else {
887 while ((*first_p)->prev->next) {
888 *first_p = (*first_p)->prev;
889 }
890 }
891 }
892 *node_p = NULL;
893 }
894}
895
aPiecek4bf47212021-05-27 10:55:47 +0200896/**
897 * @brief Wrapper for ::lyd_create_opaq().
898 *
899 * @param[in] lydctx JSON data parser context.
900 * @param[in] name Name of the opaq node to create.
901 * @param[in] name_len Length of the @p name string.
902 * @param[in] prefix Prefix of the opaq node to create.
903 * @param[in] prefix_len Length of the @p prefx string.
904 * @param[in] parent Data parent of the opaq node to create, can be NULL in case of top level,
905 * but must be set if @p first is not.
906 * @param[in,out] status_inner_p In case of processing JSON array, this parameter points to a standalone
907 * context status of the array content. Otherwise, it is supposed to be the same as @p status_p.
908 * @param[out] node_p Pointer to the created opaq node.
909 * @return LY_ERR value.
910 */
911static LY_ERR
912lydjson_create_opaq(struct lyd_json_ctx *lydctx, const char *name, size_t name_len, const char *prefix, size_t prefix_len,
913 struct lyd_node_inner *parent, enum LYJSON_PARSER_STATUS *status_inner_p, struct lyd_node **node_p)
914{
915 LY_ERR ret = LY_SUCCESS;
916 const char *value = NULL, *module_name;
917 size_t value_len = 0, module_name_len = 0;
918 ly_bool dynamic = 0;
919 uint32_t type_hint = 0;
920
921 if ((*status_inner_p != LYJSON_OBJECT) && (*status_inner_p != LYJSON_OBJECT_EMPTY)) {
922 /* prepare for creating opaq node with a value */
923 value = lydctx->jsonctx->value;
924 value_len = lydctx->jsonctx->value_len;
925 dynamic = lydctx->jsonctx->dynamic;
926 lydctx->jsonctx->dynamic = 0;
927
928 LY_CHECK_RET(lydjson_value_type_hint(lydctx, status_inner_p, &type_hint));
929 }
930
931 /* create node */
Michal Vaskod8e774e2021-06-15 14:58:07 +0200932 lydjson_get_node_prefix(parent ? &parent->node : NULL, prefix, prefix_len, &module_name, &module_name_len);
aPiecek4bf47212021-05-27 10:55:47 +0200933 ret = lyd_create_opaq(lydctx->jsonctx->ctx, name, name_len, prefix, prefix_len, module_name, module_name_len, value,
934 value_len, &dynamic, LY_VALUE_JSON, NULL, type_hint, node_p);
935 if (dynamic) {
936 free((char *)value);
937 }
938
939 return ret;
940}
941
Michal Vaskoe0665742021-02-11 11:08:44 +0100942static LY_ERR lydjson_subtree_r(struct lyd_json_ctx *lydctx, struct lyd_node *parent, struct lyd_node **first_p,
943 struct ly_set *parsed);
Radek Krejci1798aae2020-07-14 13:26:06 +0200944
945/**
946 * @brief Parse opaq node from the input.
947 *
948 * In case of processing array, the whole array is being processed and the resulting @p node_p is the last item of the array.
949 *
950 * @param[in] lydctx JSON data parser context.
951 * @param[in] name Name of the opaq node to create.
952 * @param[in] name_len Length of the @p name string.
953 * @param[in] prefix Prefix of the opaq node to create.
954 * @param[in] prefix_len Length of the @p prefx string.
955 * @param[in] parent Data parent of the opaq node to create, can be NULL in case of top level,
956 * but must be set if @p first is not.
957 * @param[in,out] status_p Pointer to the current status of the parser context,
958 * since the function manipulates with the context and process the input, the status can be updated.
959 * @param[in,out] status_inner_p In case of processing JSON array, this parameter points to a standalone
960 * context status of the array content. Otherwise, it is supposed to be the same as @p status_p.
961 * @param[in,out] first_p First top-level/parent sibling, must be set if @p parent is not.
962 * @param[out] node_p Pointer to the created opaq node.
963 * @return LY_ERR value.
964 */
965static LY_ERR
Michal Vaskoa5da3292020-08-12 13:10:50 +0200966lydjson_parse_opaq(struct lyd_json_ctx *lydctx, const char *name, size_t name_len, const char *prefix, size_t prefix_len,
Radek Krejci0f969882020-08-21 16:56:47 +0200967 struct lyd_node_inner *parent, enum LYJSON_PARSER_STATUS *status_p,
968 enum LYJSON_PARSER_STATUS *status_inner_p, struct lyd_node **first_p, struct lyd_node **node_p)
Radek Krejci1798aae2020-07-14 13:26:06 +0200969{
970 LY_ERR ret = LY_SUCCESS;
Radek Krejci1798aae2020-07-14 13:26:06 +0200971
aPiecek4bf47212021-05-27 10:55:47 +0200972 ret = lydjson_create_opaq(lydctx, name, name_len, prefix, prefix_len, parent, status_inner_p, node_p);
Radek Krejcid46e46a2020-09-15 14:22:42 +0200973 LY_CHECK_RET(ret);
Radek Krejci1798aae2020-07-14 13:26:06 +0200974
Michal Vasko1a85d332021-08-27 10:35:28 +0200975 if ((*status_p == LYJSON_ARRAY) && (*status_inner_p == LYJSON_NULL)) {
976 /* special array null value */
977 ((struct lyd_node_opaq *)*node_p)->hints |= LYD_VALHINT_EMPTY;
978
979 /* must be the only item */
980 LY_CHECK_RET(lyjson_ctx_next(lydctx->jsonctx, status_inner_p));
981 if (*status_inner_p != LYJSON_ARRAY_CLOSED) {
982 LOGVAL(lydctx->jsonctx->ctx, LYVE_SYNTAX, "Array \"null\" member with another member.");
983 return LY_EVALID;
984 }
985
986 goto finish;
987 }
988
aPiecekdbb8baf2021-05-27 11:01:51 +0200989 while ((*status_p == LYJSON_ARRAY) || (*status_p == LYJSON_ARRAY_EMPTY)) {
Radek Krejci1798aae2020-07-14 13:26:06 +0200990 /* process another instance of the same node */
Radek Krejci1798aae2020-07-14 13:26:06 +0200991
Michal Vasko69730152020-10-09 16:30:07 +0200992 if ((*status_inner_p == LYJSON_OBJECT) || (*status_inner_p == LYJSON_OBJECT_EMPTY)) {
Michal Vasko1a85d332021-08-27 10:35:28 +0200993 /* array with objects, list */
994 ((struct lyd_node_opaq *)*node_p)->hints |= LYD_NODEHINT_LIST;
995
Radek Krejci1798aae2020-07-14 13:26:06 +0200996 /* but first process children of the object in the array */
Michal Vasko1a85d332021-08-27 10:35:28 +0200997 while ((*status_inner_p != LYJSON_OBJECT_CLOSED) && (*status_inner_p != LYJSON_OBJECT_EMPTY)) {
Michal Vaskoe0665742021-02-11 11:08:44 +0100998 LY_CHECK_RET(lydjson_subtree_r(lydctx, *node_p, lyd_node_child_p(*node_p), NULL));
Radek Krejci1798aae2020-07-14 13:26:06 +0200999 *status_inner_p = lyjson_ctx_status(lydctx->jsonctx, 0);
1000 }
Michal Vasko1a85d332021-08-27 10:35:28 +02001001 } else {
1002 /* array with values, leaf-list */
1003 ((struct lyd_node_opaq *)*node_p)->hints |= LYD_NODEHINT_LEAFLIST;
Radek Krejci1798aae2020-07-14 13:26:06 +02001004 }
1005
1006 LY_CHECK_RET(lyjson_ctx_next(lydctx->jsonctx, status_inner_p));
aPiecekdbb8baf2021-05-27 11:01:51 +02001007 if (*status_inner_p == LYJSON_ARRAY_CLOSED) {
1008 goto finish;
1009 }
Radek Krejci1798aae2020-07-14 13:26:06 +02001010
1011 /* continue with the next instance */
aPiecekdbb8baf2021-05-27 11:01:51 +02001012 assert(node_p);
Michal Vasko6ee6f432021-07-16 09:49:14 +02001013 lydjson_maintain_children(parent, first_p, node_p, lydctx->parse_opts & LYD_PARSE_ORDERED ? 1 : 0);
aPiecekdbb8baf2021-05-27 11:01:51 +02001014 ret = lydjson_create_opaq(lydctx, name, name_len, prefix, prefix_len, parent, status_inner_p, node_p);
1015 LY_CHECK_RET(ret);
1016 }
1017
1018 if ((*status_p == LYJSON_OBJECT) || (*status_p == LYJSON_OBJECT_EMPTY)) {
1019 /* process children */
1020 while (*status_p != LYJSON_OBJECT_CLOSED && *status_p != LYJSON_OBJECT_EMPTY) {
1021 LY_CHECK_RET(lydjson_subtree_r(lydctx, *node_p, lyd_node_child_p(*node_p), NULL));
1022 *status_p = lyjson_ctx_status(lydctx->jsonctx, 0);
Radek Krejci1798aae2020-07-14 13:26:06 +02001023 }
1024 }
1025
aPiecekdbb8baf2021-05-27 11:01:51 +02001026finish:
Radek Krejci1798aae2020-07-14 13:26:06 +02001027 /* finish linking metadata */
Michal Vaskoe0665742021-02-11 11:08:44 +01001028 LY_CHECK_RET(lydjson_metadata_finish(lydctx, lyd_node_child_p(*node_p)));
Radek Krejci1798aae2020-07-14 13:26:06 +02001029
1030 /* move after the item */
1031 return lyjson_ctx_next(lydctx->jsonctx, status_p);
1032}
1033
1034/**
aPiecek6cee5d02021-05-12 10:32:00 +02001035 * @brief Move to the second item in the name/X pair and parse opaq node from the input.
1036 *
1037 * This function is basically the wrapper of the ::lydjson_parse_opaq().
1038 * In addition, it calls the ::json_ctx_next() and prepares the status_inner_p parameter
1039 * for ::lydjson_parse_opaq().
1040 *
1041 * @param[in] lydctx JSON data parser context.
1042 * @param[in] name Name of the opaq node to create.
1043 * @param[in] name_len Length of the @p name string.
1044 * @param[in] prefix Prefix of the opaq node to create.
1045 * @param[in] prefix_len Length of the @p prefx string.
1046 * @param[in] parent Data parent of the opaq node to create, can be NULL in case of top level,
1047 * but must be set if @p first is not.
1048 * @param[in,out] status_p Pointer to the current status of the parser context,
1049 * since the function manipulates with the context and process the input, the status can be updated.
1050 * @param[in,out] first_p First top-level/parent sibling, must be set if @p parent is not.
1051 * @param[out] node_p Pointer to the created opaq node.
1052 * @return LY_ERR value.
1053 */
1054static LY_ERR
1055lydjson_ctx_next_parse_opaq(struct lyd_json_ctx *lydctx, const char *name, size_t name_len,
1056 const char *prefix, size_t prefix_len, struct lyd_node_inner *parent, enum LYJSON_PARSER_STATUS *status_p,
1057 struct lyd_node **first_p, struct lyd_node **node_p)
1058{
1059 enum LYJSON_PARSER_STATUS status_inner = 0;
1060
1061 /* move to the second item in the name/X pair */
1062 LY_CHECK_RET(lyjson_ctx_next(lydctx->jsonctx, status_p));
1063
1064 if (*status_p == LYJSON_ARRAY) {
1065 /* move into the array */
1066 LY_CHECK_RET(lyjson_ctx_next(lydctx->jsonctx, &status_inner));
1067 } else {
1068 /* just a flag to pass correct parameters into lydjson_parse_opaq() */
1069 status_inner = LYJSON_ERROR;
1070 }
1071
1072 if (status_inner == LYJSON_ERROR) {
1073 status_inner = *status_p;
1074 }
1075
1076 /* parse opaq node from the input */
1077 LY_CHECK_RET(lydjson_parse_opaq(lydctx, name, name_len, prefix, prefix_len, parent, status_p, &status_inner, first_p, node_p));
1078
1079 return LY_SUCCESS;
1080}
1081
1082/**
Radek Krejci1798aae2020-07-14 13:26:06 +02001083 * @brief Process the attribute container (starting by @)
1084 *
1085 * @param[in] lydctx JSON data parser context.
1086 * @param[in] attr_node The data node referenced by the attribute container, if already known.
1087 * @param[in] snode The schema node of the data node referenced by the attribute container, if known.
1088 * @param[in] name Name of the opaq node to create.
1089 * @param[in] name_len Length of the @p name string.
1090 * @param[in] prefix Prefix of the opaq node to create.
1091 * @param[in] prefix_len Length of the @p prefx string.
1092 * @param[in] parent Data parent of the opaq node to create, can be NULL in case of top level,
1093 * but must be set if @p first is not.
1094 * @param[in,out] status_p Pointer to the current status of the parser context,
1095 * since the function manipulates with the context and process the input, the status can be updated.
1096 * @param[in,out] first_p First top-level/parent sibling, must be set if @p parent is not.
1097 * @param[out] node_p Pointer to the created opaq node.
1098 * @return LY_ERR value.
1099 */
1100static LY_ERR
1101lydjson_parse_attribute(struct lyd_json_ctx *lydctx, struct lyd_node *attr_node, const struct lysc_node *snode,
Michal Vaskoe0665742021-02-11 11:08:44 +01001102 const char *name, size_t name_len, const char *prefix, size_t prefix_len, struct lyd_node *parent,
1103 enum LYJSON_PARSER_STATUS *status_p, struct lyd_node **first_p, struct lyd_node **node_p)
Radek Krejci1798aae2020-07-14 13:26:06 +02001104{
1105 LY_ERR ret = LY_SUCCESS;
Radek Krejci1798aae2020-07-14 13:26:06 +02001106
1107 /* parse as an attribute to a node */
1108 if (!attr_node && snode) {
1109 /* try to find the instance */
1110 for (struct lyd_node *iter = *first_p; iter; iter = iter->next) {
1111 if (iter->schema == snode) {
1112 attr_node = iter;
1113 break;
1114 }
1115 }
1116 }
1117 if (!attr_node) {
1118 /* parse just as an opaq node with the name beginning with @,
1119 * later we have to check that it belongs to a standard node
1120 * and it is supposed to be converted to a metadata */
1121 uint32_t prev_opts;
1122
Radek Krejci1798aae2020-07-14 13:26:06 +02001123 /* backup parser options to parse unknown metadata as opaq nodes and try to resolve them later */
Michal Vaskoe0665742021-02-11 11:08:44 +01001124 prev_opts = lydctx->parse_opts;
1125 lydctx->parse_opts &= ~LYD_PARSE_STRICT;
1126 lydctx->parse_opts |= LYD_PARSE_OPAQ;
Radek Krejci1798aae2020-07-14 13:26:06 +02001127
aPiecek6cee5d02021-05-12 10:32:00 +02001128 ret = lydjson_ctx_next_parse_opaq(lydctx, prefix ? prefix - 1 : name - 1, prefix ? prefix_len + name_len + 2 : name_len + 1,
1129 NULL, 0, (struct lyd_node_inner *)parent, status_p, first_p, node_p);
Radek Krejci1798aae2020-07-14 13:26:06 +02001130
1131 /* restore the parser options */
Michal Vaskoe0665742021-02-11 11:08:44 +01001132 lydctx->parse_opts = prev_opts;
Radek Krejci1798aae2020-07-14 13:26:06 +02001133 } else {
1134 ret = lydjson_metadata(lydctx, snode, attr_node);
1135 }
1136
1137 return ret;
1138}
1139
1140/**
Michal Vasko32ac9942020-08-12 14:35:12 +02001141 * @brief Parse a single instance of a node.
1142 *
1143 * @param[in] lydctx JSON data parser context. When the function returns, the context is in the same state
1144 * as before calling, despite it is necessary to process input data for checking.
1145 * @param[in] parent Data parent of the subtree, must be set if @p first is not.
1146 * @param[in,out] first_p Pointer to the variable holding the first top-level sibling, must be set if @p parent is not.
1147 * @param[in] snode Schema node corresponding to the member currently being processed in the context.
1148 * @param[in] name Parsed JSON node name.
1149 * @param[in] name_len Lenght of @p name.
1150 * @param[in] prefix Parsed JSON node prefix.
1151 * @param[in] prefix_len Length of @p prefix.
1152 * @param[in,out] status JSON parser status, is updated.
1153 * @param[out] node Parsed data (or opaque) node.
1154 * @return LY_SUCCESS if a node was successfully parsed,
1155 * @return LY_EINVAL in case of invalid JSON encoding,
1156 * @return LY_ERR on other errors.
1157 */
1158static LY_ERR
1159lydjson_parse_instance(struct lyd_json_ctx *lydctx, struct lyd_node_inner *parent, struct lyd_node **first_p,
Radek Krejci0f969882020-08-21 16:56:47 +02001160 const struct lysc_node *snode, const char *name, size_t name_len, const char *prefix, size_t prefix_len,
1161 enum LYJSON_PARSER_STATUS *status, struct lyd_node **node)
Michal Vasko32ac9942020-08-12 14:35:12 +02001162{
1163 LY_ERR ret;
Michal Vaskoca0b23b2022-01-06 11:40:10 +01001164 uint32_t type_hints = 0, prev_parse_opts, prev_int_opts;
1165 char *val;
Michal Vasko32ac9942020-08-12 14:35:12 +02001166 struct lyd_node *tree = NULL;
1167
Michal Vaskofeca4fb2020-10-05 08:58:40 +02001168 ret = lydjson_data_check_opaq(lydctx, snode, &type_hints);
Michal Vasko32ac9942020-08-12 14:35:12 +02001169 if (ret == LY_SUCCESS) {
1170 assert(snode->nodetype & (LYD_NODE_TERM | LYD_NODE_INNER | LYD_NODE_ANY));
1171 if (snode->nodetype & LYD_NODE_TERM) {
Michal Vaskoca0b23b2022-01-06 11:40:10 +01001172 LY_CHECK_RET((*status != LYJSON_ARRAY) && (*status != LYJSON_NUMBER) && (*status != LYJSON_STRING) &&
1173 (*status != LYJSON_FALSE) && (*status != LYJSON_TRUE) && (*status != LYJSON_NULL), LY_EINVAL);
1174
Michal Vasko32ac9942020-08-12 14:35:12 +02001175 /* create terminal node */
1176 ret = lyd_parser_create_term((struct lyd_ctx *)lydctx, snode, lydctx->jsonctx->value,
Radek Krejci8df109d2021-04-23 12:19:08 +02001177 lydctx->jsonctx->value_len, &lydctx->jsonctx->dynamic, LY_VALUE_JSON, NULL,
Michal Vasko69730152020-10-09 16:30:07 +02001178 type_hints, node);
Michal Vasko32ac9942020-08-12 14:35:12 +02001179 LY_CHECK_RET(ret);
1180
1181 /* move JSON parser */
Michal Vasko85430702021-07-21 14:29:56 +02001182 if (*status == LYJSON_ARRAY) {
1183 /* only [null], 2 more moves are needed */
1184 LY_CHECK_RET(lyjson_ctx_next(lydctx->jsonctx, status));
1185 assert(*status == LYJSON_NULL);
1186 LY_CHECK_RET(lyjson_ctx_next(lydctx->jsonctx, status));
1187 assert(*status == LYJSON_ARRAY_CLOSED);
1188 }
1189 LY_CHECK_RET(lyjson_ctx_next(lydctx->jsonctx, status));
Michal Vaskoca0b23b2022-01-06 11:40:10 +01001190 } else if (snode->nodetype == LYS_ANYXML) {
1191 LY_CHECK_RET((*status != LYJSON_STRING) && (*status != LYJSON_NULL), LY_EINVAL);
1192
1193 /* create anyxml node */
1194 if (*status == LYJSON_NULL) {
1195 ret = lyd_create_any(snode, NULL, LYD_ANYDATA_STRING, 1, node);
1196 LY_CHECK_RET(ret);
1197 } else if (lydctx->jsonctx->dynamic) {
1198 ret = lyd_create_any(snode, lydctx->jsonctx->value, LYD_ANYDATA_STRING, 1, node);
1199 LY_CHECK_RET(ret);
1200 lydctx->jsonctx->dynamic = 0;
1201 } else {
1202 val = strndup(lydctx->jsonctx->value, lydctx->jsonctx->value_len);
1203 LY_CHECK_ERR_RET(!val, LOGMEM(lydctx->jsonctx->ctx), LY_EMEM);
1204 ret = lyd_create_any(snode, val, LYD_ANYDATA_STRING, 1, node);
1205 if (ret) {
1206 free(val);
1207 return ret;
1208 }
1209 }
1210
1211 /* move JSON parser */
1212 LY_CHECK_RET(lyjson_ctx_next(lydctx->jsonctx, status));
Michal Vasko32ac9942020-08-12 14:35:12 +02001213 } else if (snode->nodetype & LYD_NODE_INNER) {
1214 /* create inner node */
Michal Vaskoca0b23b2022-01-06 11:40:10 +01001215 LY_CHECK_RET((*status != LYJSON_OBJECT) && (*status != LYJSON_OBJECT_EMPTY), LY_EINVAL);
Michal Vasko32ac9942020-08-12 14:35:12 +02001216
1217 ret = lyd_create_inner(snode, node);
1218 LY_CHECK_RET(ret);
1219
Radek Krejciddace2c2021-01-08 11:30:56 +01001220 LOG_LOCSET(snode, *node, NULL, NULL);
Radek Krejci2efc45b2020-12-22 16:25:44 +01001221
Michal Vasko32ac9942020-08-12 14:35:12 +02001222 /* process children */
Michal Vaskoca0b23b2022-01-06 11:40:10 +01001223 while ((*status != LYJSON_OBJECT_CLOSED) && (*status != LYJSON_OBJECT_EMPTY)) {
Michal Vaskoe0665742021-02-11 11:08:44 +01001224 ret = lydjson_subtree_r(lydctx, *node, lyd_node_child_p(*node), NULL);
Radek Krejciddace2c2021-01-08 11:30:56 +01001225 LY_CHECK_ERR_RET(ret, LOG_LOCBACK(1, 1, 0, 0), ret);
Michal Vasko32ac9942020-08-12 14:35:12 +02001226 *status = lyjson_ctx_status(lydctx->jsonctx, 0);
1227 }
1228
1229 /* finish linking metadata */
Michal Vaskoe0665742021-02-11 11:08:44 +01001230 ret = lydjson_metadata_finish(lydctx, lyd_node_child_p(*node));
Radek Krejciddace2c2021-01-08 11:30:56 +01001231 LY_CHECK_ERR_RET(ret, LOG_LOCBACK(1, 1, 0, 0), ret);
Michal Vasko32ac9942020-08-12 14:35:12 +02001232
1233 if (snode->nodetype == LYS_LIST) {
1234 /* check all keys exist */
1235 ret = lyd_parse_check_keys(*node);
Radek Krejciddace2c2021-01-08 11:30:56 +01001236 LY_CHECK_ERR_RET(ret, LOG_LOCBACK(1, 1, 0, 0), ret);
Michal Vasko32ac9942020-08-12 14:35:12 +02001237 }
1238
Michal Vaskoe0665742021-02-11 11:08:44 +01001239 if (!(lydctx->parse_opts & LYD_PARSE_ONLY)) {
Michal Vasko32ac9942020-08-12 14:35:12 +02001240 /* new node validation, autodelete CANNOT occur, all nodes are new */
Michal Vaskoe0665742021-02-11 11:08:44 +01001241 ret = lyd_validate_new(lyd_node_child_p(*node), snode, NULL, NULL);
Radek Krejciddace2c2021-01-08 11:30:56 +01001242 LY_CHECK_ERR_RET(ret, LOG_LOCBACK(1, 1, 0, 0), ret);
Michal Vasko32ac9942020-08-12 14:35:12 +02001243
1244 /* add any missing default children */
Radek Krejci4f2e3e52021-03-30 14:20:28 +02001245 ret = lyd_new_implicit_r(*node, lyd_node_child_p(*node), NULL, NULL, &lydctx->node_when, &lydctx->node_exts,
1246 &lydctx->node_types, (lydctx->val_opts & LYD_VALIDATE_NO_STATE) ? LYD_IMPLICIT_NO_STATE : 0, NULL);
Radek Krejciddace2c2021-01-08 11:30:56 +01001247 LY_CHECK_ERR_RET(ret, LOG_LOCBACK(1, 1, 0, 0), ret);
Michal Vasko32ac9942020-08-12 14:35:12 +02001248 }
1249
Radek Krejciddace2c2021-01-08 11:30:56 +01001250 LOG_LOCBACK(1, 1, 0, 0);
Radek Krejci2efc45b2020-12-22 16:25:44 +01001251
Michal Vasko32ac9942020-08-12 14:35:12 +02001252 /* move JSON parser */
1253 ret = lyjson_ctx_next(lydctx->jsonctx, status);
1254 LY_CHECK_RET(ret);
Michal Vaskoca0b23b2022-01-06 11:40:10 +01001255 } else if (snode->nodetype == LYS_ANYDATA) {
Michal Vasko32ac9942020-08-12 14:35:12 +02001256 /* create any node */
Michal Vaskoca0b23b2022-01-06 11:40:10 +01001257 LY_CHECK_RET((*status != LYJSON_OBJECT) && (*status != LYJSON_OBJECT_EMPTY), LY_EINVAL);
Michal Vasko32ac9942020-08-12 14:35:12 +02001258
1259 /* parse any data tree with correct options */
1260 /* first backup the current options and then make the parser to process data as opaq nodes */
Michal Vasko02ed9d82021-07-15 14:58:04 +02001261 prev_parse_opts = lydctx->parse_opts;
Michal Vaskoe0665742021-02-11 11:08:44 +01001262 lydctx->parse_opts &= ~LYD_PARSE_STRICT;
1263 lydctx->parse_opts |= LYD_PARSE_OPAQ;
Michal Vasko02ed9d82021-07-15 14:58:04 +02001264 prev_int_opts = lydctx->int_opts;
1265 lydctx->int_opts |= LYD_INTOPT_ANY | LYD_INTOPT_WITH_SIBLINGS;
Michal Vasko32ac9942020-08-12 14:35:12 +02001266
1267 /* process the anydata content */
Michal Vaskoca0b23b2022-01-06 11:40:10 +01001268 while ((*status != LYJSON_OBJECT_CLOSED) && (*status != LYJSON_OBJECT_EMPTY)) {
Michal Vaskoe0665742021-02-11 11:08:44 +01001269 ret = lydjson_subtree_r(lydctx, NULL, &tree, NULL);
Michal Vasko32ac9942020-08-12 14:35:12 +02001270 LY_CHECK_RET(ret);
1271 *status = lyjson_ctx_status(lydctx->jsonctx, 0);
1272 }
1273
1274 /* restore parser options */
Michal Vasko02ed9d82021-07-15 14:58:04 +02001275 lydctx->parse_opts = prev_parse_opts;
1276 lydctx->int_opts = prev_int_opts;
Michal Vasko32ac9942020-08-12 14:35:12 +02001277
1278 /* finish linking metadata */
1279 ret = lydjson_metadata_finish(lydctx, &tree);
1280 LY_CHECK_RET(ret);
1281
Michal Vasko366a4a12020-12-04 16:23:57 +01001282 ret = lyd_create_any(snode, tree, LYD_ANYDATA_DATATREE, 1, node);
Michal Vasko32ac9942020-08-12 14:35:12 +02001283 LY_CHECK_RET(ret);
1284 }
Michal Vaskocaf608d2021-07-23 13:51:23 +02001285
1286 /* add/correct flags */
1287 lyd_parse_set_data_flags(*node, &lydctx->node_when, &lydctx->node_exts, &(*node)->meta, lydctx->parse_opts);
Michal Vasko32ac9942020-08-12 14:35:12 +02001288 } else if (ret == LY_ENOT) {
1289 /* parse it again as an opaq node */
1290 ret = lydjson_parse_opaq(lydctx, name, name_len, prefix, prefix_len, parent,
Michal Vasko69730152020-10-09 16:30:07 +02001291 status, status, first_p, node);
Michal Vasko32ac9942020-08-12 14:35:12 +02001292 LY_CHECK_RET(ret);
1293
Michal Vaskofeca4fb2020-10-05 08:58:40 +02001294 if (snode->nodetype == LYS_LIST) {
1295 ((struct lyd_node_opaq *)*node)->hints |= LYD_NODEHINT_LIST;
1296 } else if (snode->nodetype == LYS_LEAFLIST) {
1297 ((struct lyd_node_opaq *)*node)->hints |= LYD_NODEHINT_LEAFLIST;
Michal Vasko32ac9942020-08-12 14:35:12 +02001298 }
1299 }
1300
1301 return ret;
1302}
1303
1304/**
Michal Vaskoa5da3292020-08-12 13:10:50 +02001305 * @brief Parse JSON subtree. All leaf-list and list instances of a node are considered one subtree.
Radek Krejci1798aae2020-07-14 13:26:06 +02001306 *
1307 * @param[in] lydctx JSON data parser context.
1308 * @param[in] parent Data parent of the subtree, must be set if @p first is not.
1309 * @param[in,out] first_p Pointer to the variable holding the first top-level sibling, must be set if @p parent is not.
Michal Vaskoe0665742021-02-11 11:08:44 +01001310 * @param[in,out] parsed Optional set to add all the parsed siblings into.
Radek Krejci1798aae2020-07-14 13:26:06 +02001311 * @return LY_ERR value.
1312 */
1313static LY_ERR
Michal Vaskoe0665742021-02-11 11:08:44 +01001314lydjson_subtree_r(struct lyd_json_ctx *lydctx, struct lyd_node *parent, struct lyd_node **first_p, struct ly_set *parsed)
Radek Krejci1798aae2020-07-14 13:26:06 +02001315{
1316 LY_ERR ret = LY_SUCCESS;
1317 enum LYJSON_PARSER_STATUS status = lyjson_ctx_status(lydctx->jsonctx, 0);
aPiecek49e2a3a2021-05-13 10:36:46 +02001318 const char *name, *prefix = NULL, *expected = NULL;
Radek Krejci1798aae2020-07-14 13:26:06 +02001319 size_t name_len, prefix_len = 0;
Radek Krejci857189e2020-09-01 13:26:36 +02001320 ly_bool is_meta = 0;
Michal Vaskocabe0702020-08-12 10:14:36 +02001321 const struct lysc_node *snode = NULL;
Michal Vasko32ac9942020-08-12 14:35:12 +02001322 struct lyd_node *node = NULL, *attr_node = NULL;
Radek Krejci1798aae2020-07-14 13:26:06 +02001323 const struct ly_ctx *ctx = lydctx->jsonctx->ctx;
aPiecek49e2a3a2021-05-13 10:36:46 +02001324 char *value = NULL;
Radek Krejci1798aae2020-07-14 13:26:06 +02001325
1326 assert(parent || first_p);
1327 assert(status == LYJSON_OBJECT);
1328
1329 /* process the node name */
aPiecekd2c39372021-06-16 14:03:12 +02001330 lydjson_parse_name(lydctx->jsonctx->value, lydctx->jsonctx->value_len, &name, &name_len, &prefix, &prefix_len, &is_meta);
1331 lyjson_ctx_submit_dynamic_value(lydctx->jsonctx, &value);
Radek Krejci1798aae2020-07-14 13:26:06 +02001332
Michal Vaskocabe0702020-08-12 10:14:36 +02001333 if (!is_meta || name_len || prefix_len) {
1334 /* get the schema node */
Michal Vaskoe0665742021-02-11 11:08:44 +01001335 ret = lydjson_get_snode(lydctx, is_meta, prefix, prefix_len, name, name_len, (struct lyd_node_inner *)parent, &snode);
Michal Vaskocabe0702020-08-12 10:14:36 +02001336 if (ret == LY_ENOT) {
1337 /* skip element with children */
1338 ret = lydjson_data_skip(lydctx->jsonctx);
1339 LY_CHECK_GOTO(ret, cleanup);
1340 status = lyjson_ctx_status(lydctx->jsonctx, 0);
1341 /* nothing for now, continue with another call of lydjson_subtree_r() */
Radek Krejci1798aae2020-07-14 13:26:06 +02001342 goto cleanup;
1343 }
Radek Krejci1798aae2020-07-14 13:26:06 +02001344 LY_CHECK_GOTO(ret, cleanup);
Radek Krejci1798aae2020-07-14 13:26:06 +02001345
Michal Vaskocabe0702020-08-12 10:14:36 +02001346 if (!snode) {
1347 /* we will not be parsing it as metadata */
1348 is_meta = 0;
1349 }
1350 }
1351
1352 if (is_meta) {
1353 /* parse as metadata */
1354 if (!name_len && !prefix_len) {
1355 /* parent's metadata without a name - use the schema from the parent */
1356 if (!parent) {
Radek Krejci2efc45b2020-12-22 16:25:44 +01001357 LOGVAL(ctx, LYVE_SYNTAX_JSON,
Michal Vasko69730152020-10-09 16:30:07 +02001358 "Invalid metadata format - \"@\" can be used only inside anydata, container or list entries.");
Michal Vaskocabe0702020-08-12 10:14:36 +02001359 ret = LY_EVALID;
1360 goto cleanup;
1361 }
Michal Vaskoe0665742021-02-11 11:08:44 +01001362 attr_node = parent;
Michal Vaskocabe0702020-08-12 10:14:36 +02001363 snode = attr_node->schema;
1364 }
1365 ret = lydjson_parse_attribute(lydctx, attr_node, snode, name, name_len, prefix, prefix_len, parent, &status,
Michal Vasko69730152020-10-09 16:30:07 +02001366 first_p, &node);
Michal Vaskocabe0702020-08-12 10:14:36 +02001367 LY_CHECK_GOTO(ret, cleanup);
1368 } else if (!snode) {
Radek Krejci1798aae2020-07-14 13:26:06 +02001369 /* parse as an opaq node */
Michal Vaskoe0665742021-02-11 11:08:44 +01001370 assert((lydctx->parse_opts & LYD_PARSE_OPAQ) || (lydctx->int_opts));
Radek Krejci1798aae2020-07-14 13:26:06 +02001371
aPiecekb7b29e62021-05-11 10:02:43 +02001372 /* opaq node cannot have an empty string as the name. */
1373 if (name_len == 0) {
1374 LOGVAL(lydctx->jsonctx->ctx, LYVE_SYNTAX_JSON, "A JSON object member name cannot be a zero-length string.");
1375 ret = LY_EVALID;
1376 goto cleanup;
1377 }
1378
aPiecek6cee5d02021-05-12 10:32:00 +02001379 /* move to the second item in the name/X pair and parse opaq */
1380 ret = lydjson_ctx_next_parse_opaq(lydctx, name, name_len, prefix, prefix_len,
1381 (struct lyd_node_inner *)parent, &status, first_p, &node);
Radek Krejci1798aae2020-07-14 13:26:06 +02001382 LY_CHECK_GOTO(ret, cleanup);
Michal Vaskocabe0702020-08-12 10:14:36 +02001383 } else {
Michal Vasko32ac9942020-08-12 14:35:12 +02001384 /* parse as a standard lyd_node but it can still turn out to be an opaque node */
Radek Krejci1798aae2020-07-14 13:26:06 +02001385
1386 /* move to the second item in the name/X pair */
1387 ret = lyjson_ctx_next(lydctx->jsonctx, &status);
1388 LY_CHECK_GOTO(ret, cleanup);
1389
1390 /* first check the expected representation according to the nodetype and then continue with the content */
1391 switch (snode->nodetype) {
1392 case LYS_LEAFLIST:
Michal Vasko32ac9942020-08-12 14:35:12 +02001393 case LYS_LIST:
1394 if (snode->nodetype == LYS_LEAFLIST) {
1395 expected = "name/array of values";
1396 } else {
1397 expected = "name/array of objects";
1398 }
Radek Krejci1798aae2020-07-14 13:26:06 +02001399
1400 LY_CHECK_GOTO(status != LYJSON_ARRAY, representation_error);
1401
1402 /* move into array */
1403 ret = lyjson_ctx_next(lydctx->jsonctx, &status);
1404 LY_CHECK_GOTO(ret, cleanup);
1405
Michal Vasko32ac9942020-08-12 14:35:12 +02001406 /* process all the values/objects */
1407 do {
Michal Vasko6ee6f432021-07-16 09:49:14 +02001408 lydjson_maintain_children((struct lyd_node_inner *)parent, first_p, &node,
1409 lydctx->parse_opts & LYD_PARSE_ORDERED ? 1 : 0);
Radek Krejci1798aae2020-07-14 13:26:06 +02001410
Michal Vaskoe0665742021-02-11 11:08:44 +01001411 ret = lydjson_parse_instance(lydctx, (struct lyd_node_inner *)parent, first_p, snode, name, name_len,
1412 prefix, prefix_len, &status, &node);
Michal Vasko32ac9942020-08-12 14:35:12 +02001413 if (ret == LY_EINVAL) {
1414 goto representation_error;
1415 } else if (ret) {
1416 goto cleanup;
Radek Krejci1798aae2020-07-14 13:26:06 +02001417 }
Michal Vasko32ac9942020-08-12 14:35:12 +02001418 } while (status != LYJSON_ARRAY_CLOSED);
Radek Krejci1798aae2020-07-14 13:26:06 +02001419
Michal Vasko32ac9942020-08-12 14:35:12 +02001420 /* move after the array */
1421 ret = lyjson_ctx_next(lydctx->jsonctx, &status);
1422 LY_CHECK_GOTO(ret, cleanup);
Radek Krejci1798aae2020-07-14 13:26:06 +02001423
1424 break;
Michal Vasko32ac9942020-08-12 14:35:12 +02001425 case LYS_LEAF:
Radek Krejci1798aae2020-07-14 13:26:06 +02001426 case LYS_CONTAINER:
1427 case LYS_NOTIF:
1428 case LYS_ACTION:
1429 case LYS_RPC:
Michal Vasko32ac9942020-08-12 14:35:12 +02001430 case LYS_ANYDATA:
1431 case LYS_ANYXML:
Michal Vaskoca0b23b2022-01-06 11:40:10 +01001432 if (snode->nodetype & (LYS_LEAF | LYS_ANYXML)) {
Michal Vasko32ac9942020-08-12 14:35:12 +02001433 if (status == LYJSON_ARRAY) {
1434 expected = "name/[null]";
1435 } else {
1436 expected = "name/value";
1437 }
1438 } else {
Radek Krejci1798aae2020-07-14 13:26:06 +02001439 expected = "name/object";
1440 }
1441
Michal Vasko32ac9942020-08-12 14:35:12 +02001442 /* process the value/object */
Michal Vaskoe0665742021-02-11 11:08:44 +01001443 ret = lydjson_parse_instance(lydctx, (struct lyd_node_inner *)parent, first_p, snode, name, name_len,
1444 prefix, prefix_len, &status, &node);
Michal Vasko32ac9942020-08-12 14:35:12 +02001445 if (ret == LY_EINVAL) {
1446 goto representation_error;
1447 } else if (ret) {
1448 goto cleanup;
Radek Krejci1798aae2020-07-14 13:26:06 +02001449 }
1450
Michal Vasko32ac9942020-08-12 14:35:12 +02001451 if (snode->nodetype & (LYS_RPC | LYS_ACTION | LYS_NOTIF)) {
Radek Krejci1798aae2020-07-14 13:26:06 +02001452 /* rememeber the RPC/action/notification */
1453 lydctx->op_node = node;
1454 }
1455
1456 break;
Radek Krejci1798aae2020-07-14 13:26:06 +02001457 }
Radek Krejci1798aae2020-07-14 13:26:06 +02001458 }
1459
Michal Vasko32ac9942020-08-12 14:35:12 +02001460 /* finally connect the parsed node */
Michal Vasko6ee6f432021-07-16 09:49:14 +02001461 lydjson_maintain_children((struct lyd_node_inner *)parent, first_p, &node,
1462 lydctx->parse_opts & LYD_PARSE_ORDERED ? 1 : 0);
Michal Vaskoe0665742021-02-11 11:08:44 +01001463
1464 /* rememeber a successfully parsed node */
1465 if (parsed) {
1466 ly_set_add(parsed, node, 1, NULL);
1467 }
Radek Krejci1798aae2020-07-14 13:26:06 +02001468
Radek Krejci5813c362021-01-05 10:51:57 +01001469 /* success */
1470 goto cleanup;
Radek Krejci1798aae2020-07-14 13:26:06 +02001471
1472representation_error:
Michal Vaskoe0665742021-02-11 11:08:44 +01001473 LOG_LOCSET(NULL, parent, NULL, NULL);
Radek Krejci2efc45b2020-12-22 16:25:44 +01001474 LOGVAL(ctx, LYVE_SYNTAX_JSON, "The %s \"%s\" is expected to be represented as JSON %s, but input data contains name/%s.",
Michal Vasko69730152020-10-09 16:30:07 +02001475 lys_nodetype2str(snode->nodetype), snode->name, expected, lyjson_token2str(status));
Radek Krejciddace2c2021-01-08 11:30:56 +01001476 LOG_LOCBACK(0, parent ? 1 : 0, 0, 0);
Radek Krejci1798aae2020-07-14 13:26:06 +02001477 ret = LY_EVALID;
Radek Krejci5813c362021-01-05 10:51:57 +01001478
1479cleanup:
aPiecek49e2a3a2021-05-13 10:36:46 +02001480 free(value);
Radek Krejci5813c362021-01-05 10:51:57 +01001481 lyd_free_tree(node);
1482 return ret;
Radek Krejci1798aae2020-07-14 13:26:06 +02001483}
1484
1485/**
1486 * @brief Common start of JSON parser processing different types of the input data.
1487 *
1488 * @param[in] ctx libyang context
1489 * @param[in] in Input structure.
Michal Vaskoe0665742021-02-11 11:08:44 +01001490 * @param[in] parse_opts Options for parser, see @ref dataparseroptions.
1491 * @param[in] val_opts Options for the validation phase, see @ref datavalidationoptions.
Radek Krejci1798aae2020-07-14 13:26:06 +02001492 * @param[out] lydctx_p Data parser context to finish validation.
Radek Krejcicd5f6222020-11-12 08:54:13 +01001493 * @param[out] status Storage for the current context's status
Radek Krejci1798aae2020-07-14 13:26:06 +02001494 * @return LY_ERR value.
1495 */
1496static LY_ERR
Michal Vaskoe0665742021-02-11 11:08:44 +01001497lyd_parse_json_init(const struct ly_ctx *ctx, struct ly_in *in, uint32_t parse_opts, uint32_t val_opts,
Radek Krejcicd5f6222020-11-12 08:54:13 +01001498 struct lyd_json_ctx **lydctx_p, enum LYJSON_PARSER_STATUS *status)
Radek Krejci1798aae2020-07-14 13:26:06 +02001499{
1500 LY_ERR ret = LY_SUCCESS;
1501 struct lyd_json_ctx *lydctx;
Radek Krejcid54412f2020-12-17 20:25:35 +01001502 size_t i;
Radek Krejci1798aae2020-07-14 13:26:06 +02001503
Radek Krejcicd5f6222020-11-12 08:54:13 +01001504 assert(lydctx_p);
1505 assert(status);
1506
Radek Krejci1798aae2020-07-14 13:26:06 +02001507 /* init context */
1508 lydctx = calloc(1, sizeof *lydctx);
1509 LY_CHECK_ERR_RET(!lydctx, LOGMEM(ctx), LY_EMEM);
Michal Vaskoe0665742021-02-11 11:08:44 +01001510 lydctx->parse_opts = parse_opts;
1511 lydctx->val_opts = val_opts;
Radek Krejci1798aae2020-07-14 13:26:06 +02001512 lydctx->free = lyd_json_ctx_free;
Radek Krejci1798aae2020-07-14 13:26:06 +02001513
Radek Krejci284f31f2020-09-18 15:40:29 +02001514 /* starting top-level */
1515 for (i = 0; in->current[i] != '\0' && is_jsonws(in->current[i]); i++) {
Radek Krejcif13b87b2020-12-01 22:02:17 +01001516 if (in->current[i] == '\n') {
1517 /* new line */
Radek Krejcid54412f2020-12-17 20:25:35 +01001518 LY_IN_NEW_LINE(in);
Michal Vasko61d76362020-10-07 10:47:30 +02001519 }
Radek Krejci284f31f2020-09-18 15:40:29 +02001520 }
Radek Krejci1798aae2020-07-14 13:26:06 +02001521
Radek Krejci284f31f2020-09-18 15:40:29 +02001522 LY_CHECK_ERR_RET(ret = lyjson_ctx_new(ctx, in, &lydctx->jsonctx), free(lydctx), ret);
Radek Krejcicd5f6222020-11-12 08:54:13 +01001523 *status = lyjson_ctx_status(lydctx->jsonctx, 0);
Radek Krejcibb27df32020-11-13 15:39:16 +01001524 if ((*status == LYJSON_END) || (*status == LYJSON_OBJECT_EMPTY) || (*status == LYJSON_OBJECT)) {
Radek Krejci284f31f2020-09-18 15:40:29 +02001525 *lydctx_p = lydctx;
1526 return LY_SUCCESS;
Radek Krejcicd5f6222020-11-12 08:54:13 +01001527 } else {
1528 /* expecting top-level object */
Radek Krejci2efc45b2020-12-22 16:25:44 +01001529 LOGVAL(ctx, LYVE_SYNTAX_JSON, "Expected top-level JSON object, but %s found.",
Radek Krejcicd5f6222020-11-12 08:54:13 +01001530 lyjson_token2str(*status));
1531 *lydctx_p = NULL;
Michal Vasko93509012020-11-13 10:26:09 +01001532 lyd_json_ctx_free((struct lyd_ctx *)lydctx);
Radek Krejcicd5f6222020-11-12 08:54:13 +01001533 return LY_EVALID;
Radek Krejci284f31f2020-09-18 15:40:29 +02001534 }
Radek Krejci1798aae2020-07-14 13:26:06 +02001535}
1536
1537LY_ERR
Radek Krejcif16e2542021-02-17 15:39:23 +01001538lyd_parse_json(const struct ly_ctx *ctx, const struct lysc_ext_instance *ext, struct lyd_node *parent,
1539 struct lyd_node **first_p, struct ly_in *in, uint32_t parse_opts, uint32_t val_opts, enum lyd_type data_type,
1540 struct ly_set *parsed, struct lyd_ctx **lydctx_p)
Radek Krejci1798aae2020-07-14 13:26:06 +02001541{
Michal Vaskoe0665742021-02-11 11:08:44 +01001542 LY_ERR rc = LY_SUCCESS;
Radek Krejci1798aae2020-07-14 13:26:06 +02001543 struct lyd_json_ctx *lydctx = NULL;
1544 enum LYJSON_PARSER_STATUS status;
Michal Vaskoe0665742021-02-11 11:08:44 +01001545 uint32_t int_opts;
Radek Krejci1798aae2020-07-14 13:26:06 +02001546
Michal Vaskoe0665742021-02-11 11:08:44 +01001547 rc = lyd_parse_json_init(ctx, in, parse_opts, val_opts, &lydctx, &status);
1548 LY_CHECK_GOTO(rc || status == LYJSON_END || status == LYJSON_OBJECT_EMPTY, cleanup);
Radek Krejci1798aae2020-07-14 13:26:06 +02001549
Radek Krejcicd5f6222020-11-12 08:54:13 +01001550 assert(status == LYJSON_OBJECT);
Radek Krejci1798aae2020-07-14 13:26:06 +02001551
Michal Vaskoe0665742021-02-11 11:08:44 +01001552 switch (data_type) {
Michal Vasko1e4c68e2021-02-18 15:03:01 +01001553 case LYD_TYPE_DATA_YANG:
Michal Vaskoe0665742021-02-11 11:08:44 +01001554 int_opts = LYD_INTOPT_WITH_SIBLINGS;
1555 break;
Michal Vasko1e4c68e2021-02-18 15:03:01 +01001556 case LYD_TYPE_RPC_YANG:
Michal Vaskoe0665742021-02-11 11:08:44 +01001557 int_opts = LYD_INTOPT_RPC | LYD_INTOPT_ACTION | LYD_INTOPT_NO_SIBLINGS;
1558 break;
Michal Vasko1e4c68e2021-02-18 15:03:01 +01001559 case LYD_TYPE_NOTIF_YANG:
Michal Vaskoe0665742021-02-11 11:08:44 +01001560 int_opts = LYD_INTOPT_NOTIF | LYD_INTOPT_NO_SIBLINGS;
1561 break;
Michal Vasko1e4c68e2021-02-18 15:03:01 +01001562 case LYD_TYPE_REPLY_YANG:
Michal Vaskoe0665742021-02-11 11:08:44 +01001563 int_opts = LYD_INTOPT_REPLY | LYD_INTOPT_NO_SIBLINGS;
1564 break;
1565 default:
1566 LOGINT(ctx);
1567 rc = LY_EINT;
1568 goto cleanup;
1569 }
1570 lydctx->int_opts = int_opts;
Radek Krejcif16e2542021-02-17 15:39:23 +01001571 lydctx->ext = ext;
Michal Vaskoe0665742021-02-11 11:08:44 +01001572
1573 /* find the operation node if it exists already */
1574 LY_CHECK_GOTO(rc = lyd_parser_find_operation(parent, int_opts, &lydctx->op_node), cleanup);
1575
Radek Krejci1798aae2020-07-14 13:26:06 +02001576 /* read subtree(s) */
Michal Vaskoe0665742021-02-11 11:08:44 +01001577 while (lydctx->jsonctx->in->current[0] && (status != LYJSON_OBJECT_CLOSED)) {
1578 rc = lydjson_subtree_r(lydctx, parent, first_p, parsed);
1579 LY_CHECK_GOTO(rc, cleanup);
Radek Krejci1798aae2020-07-14 13:26:06 +02001580
1581 status = lyjson_ctx_status(lydctx->jsonctx, 0);
Michal Vaskoe0665742021-02-11 11:08:44 +01001582
1583 if (!(int_opts & LYD_INTOPT_WITH_SIBLINGS)) {
1584 break;
1585 }
1586 }
1587
1588 if ((int_opts & LYD_INTOPT_NO_SIBLINGS) && lydctx->jsonctx->in->current[0] &&
1589 (lyjson_ctx_status(lydctx->jsonctx, 0) != LYJSON_OBJECT_CLOSED)) {
1590 LOGVAL(ctx, LYVE_SYNTAX, "Unexpected sibling node.");
1591 rc = LY_EVALID;
1592 goto cleanup;
1593 }
1594 if ((int_opts & (LYD_INTOPT_RPC | LYD_INTOPT_ACTION | LYD_INTOPT_NOTIF | LYD_INTOPT_REPLY)) && !lydctx->op_node) {
1595 LOGVAL(ctx, LYVE_DATA, "Missing the operation node.");
1596 rc = LY_EVALID;
1597 goto cleanup;
Radek Krejci1798aae2020-07-14 13:26:06 +02001598 }
1599
1600 /* finish linking metadata */
Michal Vaskoe0665742021-02-11 11:08:44 +01001601 rc = lydjson_metadata_finish(lydctx, parent ? lyd_node_child_p(parent) : first_p);
1602 LY_CHECK_GOTO(rc, cleanup);
Radek Krejci1798aae2020-07-14 13:26:06 +02001603
1604cleanup:
1605 /* there should be no unresolved types stored */
Michal Vasko40b80592021-12-09 09:25:33 +01001606 assert(!(parse_opts & LYD_PARSE_ONLY) || !lydctx || (!lydctx->node_types.count && !lydctx->meta_types.count &&
Michal Vasko49c39d82020-11-06 17:20:27 +01001607 !lydctx->node_when.count));
Radek Krejci1798aae2020-07-14 13:26:06 +02001608
Michal Vaskoe0665742021-02-11 11:08:44 +01001609 if (rc) {
Radek Krejci1798aae2020-07-14 13:26:06 +02001610 lyd_json_ctx_free((struct lyd_ctx *)lydctx);
Radek Krejci1798aae2020-07-14 13:26:06 +02001611 } else {
1612 *lydctx_p = (struct lyd_ctx *)lydctx;
1613 }
Michal Vaskoe0665742021-02-11 11:08:44 +01001614 return rc;
Michal Vasko90932a92020-02-12 14:33:03 +01001615}