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@@ -0,0 +1,720 @@
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+/*
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+ * MIT License
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+ *
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+ * Copyright (c) 2010 Serge Zaitsev
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+ *
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+ * [License text continues...]
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+ */
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+
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+#include <jsmn/jsmn_furi.h>
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+
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+// Forward declarations of helper functions
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+static int jsoneq_furi(const FuriString *json, jsmntok_t *tok, const FuriString *s);
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+static int skip_token(const jsmntok_t *tokens, int start, int total);
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+
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+/**
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+ * Allocates a fresh unused token from the token pool.
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+ */
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+static jsmntok_t *jsmn_alloc_token(jsmn_parser *parser, jsmntok_t *tokens,
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+ const size_t num_tokens)
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+{
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+ if (parser->toknext >= num_tokens)
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+ {
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+ return NULL;
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+ }
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+ jsmntok_t *tok = &tokens[parser->toknext++];
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+ tok->start = tok->end = -1;
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+ tok->size = 0;
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+#ifdef JSMN_PARENT_LINKS
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+ tok->parent = -1;
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+#endif
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+ return tok;
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+}
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+
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+/**
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+ * Fills token type and boundaries.
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+ */
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+static void jsmn_fill_token(jsmntok_t *token, const jsmntype_t type,
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+ const int start, const int end)
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+{
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+ token->type = type;
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+ token->start = start;
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+ token->end = end;
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+ token->size = 0;
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+}
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+
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+/**
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+ * Fills next available token with JSON primitive.
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+ * Now uses FuriString to access characters.
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+ */
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+static int jsmn_parse_primitive(jsmn_parser *parser, const FuriString *js,
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+ jsmntok_t *tokens, const size_t num_tokens)
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+{
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+ size_t len = furi_string_size(js);
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+ int start = parser->pos;
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+
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+ for (; parser->pos < len; parser->pos++)
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+ {
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+ char c = furi_string_get_char(js, parser->pos);
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+ switch (c)
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+ {
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+#ifndef JSMN_STRICT
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+ case ':':
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+#endif
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+ case '\t':
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+ case '\r':
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+ case '\n':
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+ case ' ':
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+ case ',':
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+ case ']':
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+ case '}':
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+ goto found;
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+ default:
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+ break;
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+ }
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+ if (c < 32 || c >= 127)
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+ {
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+ parser->pos = start;
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+ return JSMN_ERROR_INVAL;
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+ }
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+ }
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+
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+#ifdef JSMN_STRICT
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+ // In strict mode primitive must be followed by a comma/object/array
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+ parser->pos = start;
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+ return JSMN_ERROR_PART;
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+#endif
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+
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+found:
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+ if (tokens == NULL)
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+ {
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+ parser->pos--;
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+ return 0;
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+ }
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+ jsmntok_t *token = jsmn_alloc_token(parser, tokens, num_tokens);
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+ if (token == NULL)
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+ {
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+ parser->pos = start;
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+ return JSMN_ERROR_NOMEM;
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+ }
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+ jsmn_fill_token(token, JSMN_PRIMITIVE, start, parser->pos);
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+#ifdef JSMN_PARENT_LINKS
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+ token->parent = parser->toksuper;
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+#endif
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+ parser->pos--;
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+ return 0;
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+}
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+
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+/**
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+ * Fills next token with JSON string.
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+ * Now uses FuriString to access characters.
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+ */
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+static int jsmn_parse_string(jsmn_parser *parser, const FuriString *js,
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+ jsmntok_t *tokens, const size_t num_tokens)
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+{
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+ size_t len = furi_string_size(js);
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+ int start = parser->pos;
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+ parser->pos++;
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+
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+ for (; parser->pos < len; parser->pos++)
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+ {
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+ char c = furi_string_get_char(js, parser->pos);
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+ if (c == '\"')
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+ {
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+ if (tokens == NULL)
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+ {
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+ return 0;
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+ }
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+ jsmntok_t *token = jsmn_alloc_token(parser, tokens, num_tokens);
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+ if (token == NULL)
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+ {
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+ parser->pos = start;
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+ return JSMN_ERROR_NOMEM;
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+ }
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+ jsmn_fill_token(token, JSMN_STRING, start + 1, parser->pos);
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+#ifdef JSMN_PARENT_LINKS
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+ token->parent = parser->toksuper;
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+#endif
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+ return 0;
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+ }
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+
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+ if (c == '\\' && (parser->pos + 1) < len)
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+ {
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+ parser->pos++;
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+ char esc = furi_string_get_char(js, parser->pos);
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+ switch (esc)
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+ {
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+ case '\"':
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+ case '/':
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+ case '\\':
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+ case 'b':
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+ case 'f':
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+ case 'r':
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+ case 'n':
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+ case 't':
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+ break;
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+ case 'u':
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+ {
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+ parser->pos++;
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+ for (int i = 0; i < 4 && parser->pos < len; i++)
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+ {
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+ char hex = furi_string_get_char(js, parser->pos);
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+ if (!((hex >= '0' && hex <= '9') ||
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+ (hex >= 'A' && hex <= 'F') ||
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+ (hex >= 'a' && hex <= 'f')))
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+ {
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+ parser->pos = start;
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+ return JSMN_ERROR_INVAL;
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+ }
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+ parser->pos++;
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+ }
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+ parser->pos--;
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+ break;
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+ }
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+ default:
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+ parser->pos = start;
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+ return JSMN_ERROR_INVAL;
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+ }
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+ }
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+ }
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+ parser->pos = start;
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+ return JSMN_ERROR_PART;
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+}
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+
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+/**
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+ * Create JSON parser
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+ */
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+void jsmn_init_furi(jsmn_parser *parser)
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+{
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+ parser->pos = 0;
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+ parser->toknext = 0;
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+ parser->toksuper = -1;
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+}
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+
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+/**
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+ * Parse JSON string and fill tokens.
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+ * Now uses FuriString for the input JSON.
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+ */
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+int jsmn_parse_furi(jsmn_parser *parser, const FuriString *js,
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+ jsmntok_t *tokens, const unsigned int num_tokens)
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+{
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+ size_t len = furi_string_size(js);
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+ int r;
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+ int i;
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+ int count = parser->toknext;
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+
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+ for (; parser->pos < len; parser->pos++)
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+ {
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+ char c = furi_string_get_char(js, parser->pos);
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+ jsmntype_t type;
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+
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+ switch (c)
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+ {
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+ case '{':
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+ case '[':
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+ {
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+ count++;
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+ if (tokens == NULL)
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+ {
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+ break;
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+ }
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+ jsmntok_t *token = jsmn_alloc_token(parser, tokens, num_tokens);
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+ if (token == NULL)
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+ return JSMN_ERROR_NOMEM;
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+ if (parser->toksuper != -1)
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+ {
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+ jsmntok_t *t = &tokens[parser->toksuper];
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+#ifdef JSMN_STRICT
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+ if (t->type == JSMN_OBJECT)
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+ return JSMN_ERROR_INVAL;
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+#endif
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+ t->size++;
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+#ifdef JSMN_PARENT_LINKS
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+ token->parent = parser->toksuper;
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+#endif
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+ }
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+ token->type = (c == '{' ? JSMN_OBJECT : JSMN_ARRAY);
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+ token->start = parser->pos;
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+ parser->toksuper = parser->toknext - 1;
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+ break;
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+ }
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+ case '}':
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+ case ']':
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+ if (tokens == NULL)
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+ {
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+ break;
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+ }
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+ type = (c == '}' ? JSMN_OBJECT : JSMN_ARRAY);
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+#ifdef JSMN_PARENT_LINKS
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+ if (parser->toknext < 1)
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+ {
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+ return JSMN_ERROR_INVAL;
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+ }
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+ {
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+ jsmntok_t *token = &tokens[parser->toknext - 1];
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+ for (;;)
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+ {
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+ if (token->start != -1 && token->end == -1)
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+ {
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+ if (token->type != type)
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+ return JSMN_ERROR_INVAL;
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+ token->end = parser->pos + 1;
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+ parser->toksuper = token->parent;
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+ break;
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+ }
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+ if (token->parent == -1)
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+ {
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+ if (token->type != type || parser->toksuper == -1)
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+ {
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+ return JSMN_ERROR_INVAL;
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+ }
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+ break;
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+ }
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+ token = &tokens[token->parent];
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+ }
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+ }
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+#else
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+ {
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+ jsmntok_t *token;
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+ for (i = parser->toknext - 1; i >= 0; i--)
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+ {
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+ token = &tokens[i];
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+ if (token->start != -1 && token->end == -1)
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+ {
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+ if (token->type != type)
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+ return JSMN_ERROR_INVAL;
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+ parser->toksuper = -1;
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+ token->end = parser->pos + 1;
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+ break;
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+ }
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+ }
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+ if (i == -1)
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+ return JSMN_ERROR_INVAL;
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+ for (; i >= 0; i--)
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+ {
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+ token = &tokens[i];
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+ if (token->start != -1 && token->end == -1)
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+ {
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+ parser->toksuper = i;
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+ break;
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+ }
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+ }
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+ }
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+#endif
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+ break;
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+ case '\"':
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+ r = jsmn_parse_string(parser, js, tokens, num_tokens);
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+ if (r < 0)
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+ return r;
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+ count++;
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+ if (parser->toksuper != -1 && tokens != NULL)
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+ {
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+ tokens[parser->toksuper].size++;
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+ }
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+ break;
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+ case '\t':
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+ case '\r':
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+ case '\n':
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+ case ' ':
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+ // Whitespace - ignore
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+ break;
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+ case ':':
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+ parser->toksuper = parser->toknext - 1;
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+ break;
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+ case ',':
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+ if (tokens != NULL && parser->toksuper != -1 &&
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+ tokens[parser->toksuper].type != JSMN_ARRAY &&
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+ tokens[parser->toksuper].type != JSMN_OBJECT)
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+ {
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+#ifdef JSMN_PARENT_LINKS
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+ parser->toksuper = tokens[parser->toksuper].parent;
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+#else
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+ for (i = parser->toknext - 1; i >= 0; i--)
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+ {
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+ if (tokens[i].type == JSMN_ARRAY || tokens[i].type == JSMN_OBJECT)
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+ {
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+ if (tokens[i].start != -1 && tokens[i].end == -1)
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+ {
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+ parser->toksuper = i;
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+ break;
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+ }
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+ }
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+ }
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+#endif
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+ }
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+ break;
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+#ifdef JSMN_STRICT
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+ case '-':
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+ case '0':
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+ case '1':
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+ case '2':
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+ case '3':
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+ case '4':
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+ case '5':
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+ case '6':
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+ case '7':
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+ case '8':
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+ case '9':
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+ case 't':
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+ case 'f':
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+ case 'n':
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+ if (tokens != NULL && parser->toksuper != -1)
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+ {
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+ const jsmntok_t *t = &tokens[parser->toksuper];
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+ if (t->type == JSMN_OBJECT ||
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+ (t->type == JSMN_STRING && t->size != 0))
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+ {
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+ return JSMN_ERROR_INVAL;
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+ }
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+ }
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+#else
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+ default:
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+#endif
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+ r = jsmn_parse_primitive(parser, js, tokens, num_tokens);
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+ if (r < 0)
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+ return r;
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+ count++;
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+ if (parser->toksuper != -1 && tokens != NULL)
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+ {
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+ tokens[parser->toksuper].size++;
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+ }
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+ break;
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+#ifdef JSMN_STRICT
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+ default:
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+ return JSMN_ERROR_INVAL;
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+#endif
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+ }
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+ }
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+
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+ if (tokens != NULL)
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+ {
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+ for (i = parser->toknext - 1; i >= 0; i--)
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+ {
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+ if (tokens[i].start != -1 && tokens[i].end == -1)
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+ {
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+ return JSMN_ERROR_PART;
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+ }
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+ }
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+ }
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+
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+ return count;
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+}
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+
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+// The rest of your code (e.g., get_json_value_furi, get_json_array_value_furi, etc.)
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+// remains unchanged and can still rely on these updated parsing functions.
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+
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+// Helper function to create a JSON object: {"key":"value"}
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+FuriString *jsmn_create_object(const FuriString *key, const FuriString *value)
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+{
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+ FuriString *result = furi_string_alloc();
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+ furi_string_printf(result, "{\"%s\":\"%s\"}",
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+ furi_string_get_cstr(key),
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+ furi_string_get_cstr(value));
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+ return result; // Caller responsible for furi_string_free
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+}
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+
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+// Helper function to compare JSON keys
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+static int jsoneq_furi(const FuriString *json, jsmntok_t *tok, const FuriString *s)
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+{
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+ size_t s_len = furi_string_size(s);
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+ size_t tok_len = tok->end - tok->start;
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+
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+ if (tok->type != JSMN_STRING)
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+ return -1;
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+ if (s_len != tok_len)
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+ return -1;
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+
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+ FuriString *sub = furi_string_alloc_set(json);
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+ furi_string_mid(sub, tok->start, tok_len);
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+
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+ int res = furi_string_cmp(sub, s);
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+ furi_string_free(sub);
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+
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+ return (res == 0) ? 0 : -1;
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+}
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+
|
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+// Skip a token and its descendants
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|
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+static int skip_token(const jsmntok_t *tokens, int start, int total)
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+{
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+ if (start < 0 || start >= total)
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+ return -1;
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+
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+ int i = start;
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+ if (tokens[i].type == JSMN_OBJECT)
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+ {
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+ int pairs = tokens[i].size;
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|
+ i++;
|
|
|
+ for (int p = 0; p < pairs; p++)
|
|
|
+ {
|
|
|
+ i++; // skip key
|
|
|
+ if (i >= total)
|
|
|
+ return -1;
|
|
|
+ i = skip_token(tokens, i, total); // skip value
|
|
|
+ if (i == -1)
|
|
|
+ return -1;
|
|
|
+ }
|
|
|
+ return i;
|
|
|
+ }
|
|
|
+ else if (tokens[i].type == JSMN_ARRAY)
|
|
|
+ {
|
|
|
+ int elems = tokens[i].size;
|
|
|
+ i++;
|
|
|
+ for (int e = 0; e < elems; e++)
|
|
|
+ {
|
|
|
+ i = skip_token(tokens, i, total);
|
|
|
+ if (i == -1)
|
|
|
+ return -1;
|
|
|
+ }
|
|
|
+ return i;
|
|
|
+ }
|
|
|
+ else
|
|
|
+ {
|
|
|
+ return i + 1;
|
|
|
+ }
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * Parse JSON and return the value associated with a given char* key.
|
|
|
+ */
|
|
|
+FuriString *get_json_value_furi(const char *key, const FuriString *json_data)
|
|
|
+{
|
|
|
+ if (json_data == NULL)
|
|
|
+ {
|
|
|
+ FURI_LOG_E("JSMM.H", "JSON data is NULL");
|
|
|
+ return NULL;
|
|
|
+ }
|
|
|
+ uint32_t max_tokens = json_token_count_furi(json_data);
|
|
|
+ // Create a temporary FuriString from key
|
|
|
+ FuriString *key_str = furi_string_alloc();
|
|
|
+ furi_string_cat_str(key_str, key);
|
|
|
+
|
|
|
+ jsmn_parser parser;
|
|
|
+ jsmn_init_furi(&parser);
|
|
|
+
|
|
|
+ jsmntok_t *tokens = (jsmntok_t *)malloc(sizeof(jsmntok_t) * max_tokens);
|
|
|
+ if (tokens == NULL)
|
|
|
+ {
|
|
|
+ FURI_LOG_E("JSMM.H", "Failed to allocate memory for JSON tokens.");
|
|
|
+ furi_string_free(key_str);
|
|
|
+ return NULL;
|
|
|
+ }
|
|
|
+
|
|
|
+ int ret = jsmn_parse_furi(&parser, json_data, tokens, max_tokens);
|
|
|
+ if (ret < 0)
|
|
|
+ {
|
|
|
+ FURI_LOG_E("JSMM.H", "Failed to parse JSON: %d", ret);
|
|
|
+ free(tokens);
|
|
|
+ furi_string_free(key_str);
|
|
|
+ return NULL;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (ret < 1 || tokens[0].type != JSMN_OBJECT)
|
|
|
+ {
|
|
|
+ FURI_LOG_E("JSMM.H", "Root element is not an object.");
|
|
|
+ free(tokens);
|
|
|
+ furi_string_free(key_str);
|
|
|
+ return NULL;
|
|
|
+ }
|
|
|
+
|
|
|
+ for (int i = 1; i < ret; i++)
|
|
|
+ {
|
|
|
+ if (jsoneq_furi(json_data, &tokens[i], key_str) == 0)
|
|
|
+ {
|
|
|
+ int length = tokens[i + 1].end - tokens[i + 1].start;
|
|
|
+ FuriString *value = furi_string_alloc_set(json_data);
|
|
|
+ furi_string_mid(value, tokens[i + 1].start, length);
|
|
|
+ free(tokens);
|
|
|
+ furi_string_free(key_str);
|
|
|
+ return value;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ free(tokens);
|
|
|
+ furi_string_free(key_str);
|
|
|
+ FURI_LOG_E("JSMM.H", "Failed to find the key in the JSON.");
|
|
|
+ return NULL;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * Return the value at a given index in a JSON array for a given char* key.
|
|
|
+ */
|
|
|
+FuriString *get_json_array_value_furi(const char *key, uint32_t index, const FuriString *json_data)
|
|
|
+{
|
|
|
+ FuriString *array_str = get_json_value_furi(key, json_data);
|
|
|
+ if (array_str == NULL)
|
|
|
+ {
|
|
|
+ FURI_LOG_E("JSMM.H", "Failed to get array for key");
|
|
|
+ return NULL;
|
|
|
+ }
|
|
|
+ uint32_t max_tokens = json_token_count_furi(array_str);
|
|
|
+ jsmn_parser parser;
|
|
|
+ jsmn_init_furi(&parser);
|
|
|
+
|
|
|
+ jsmntok_t *tokens = (jsmntok_t *)malloc(sizeof(jsmntok_t) * max_tokens);
|
|
|
+ if (tokens == NULL)
|
|
|
+ {
|
|
|
+ FURI_LOG_E("JSMM.H", "Failed to allocate memory for JSON tokens.");
|
|
|
+ furi_string_free(array_str);
|
|
|
+ return NULL;
|
|
|
+ }
|
|
|
+
|
|
|
+ int ret = jsmn_parse_furi(&parser, array_str, tokens, max_tokens);
|
|
|
+ if (ret < 0)
|
|
|
+ {
|
|
|
+ FURI_LOG_E("JSMM.H", "Failed to parse JSON array: %d", ret);
|
|
|
+ free(tokens);
|
|
|
+ furi_string_free(array_str);
|
|
|
+ return NULL;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (ret < 1 || tokens[0].type != JSMN_ARRAY)
|
|
|
+ {
|
|
|
+ FURI_LOG_E("JSMM.H", "Value for key is not an array.");
|
|
|
+ free(tokens);
|
|
|
+ furi_string_free(array_str);
|
|
|
+ return NULL;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (index >= (uint32_t)tokens[0].size)
|
|
|
+ {
|
|
|
+ FURI_LOG_E("JSMM.H", "Index %lu out of bounds for array with size %u.", index, tokens[0].size);
|
|
|
+ free(tokens);
|
|
|
+ furi_string_free(array_str);
|
|
|
+ return NULL;
|
|
|
+ }
|
|
|
+
|
|
|
+ int elem_token = 1;
|
|
|
+ for (uint32_t i = 0; i < index; i++)
|
|
|
+ {
|
|
|
+ elem_token = skip_token(tokens, elem_token, ret);
|
|
|
+ if (elem_token == -1 || elem_token >= ret)
|
|
|
+ {
|
|
|
+ FURI_LOG_E("JSMM.H", "Error skipping tokens to reach element %lu.", i);
|
|
|
+ free(tokens);
|
|
|
+ furi_string_free(array_str);
|
|
|
+ return NULL;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ jsmntok_t element = tokens[elem_token];
|
|
|
+ int length = element.end - element.start;
|
|
|
+
|
|
|
+ FuriString *value = furi_string_alloc_set(array_str);
|
|
|
+ furi_string_mid(value, element.start, length);
|
|
|
+
|
|
|
+ free(tokens);
|
|
|
+ furi_string_free(array_str);
|
|
|
+
|
|
|
+ return value;
|
|
|
+}
|
|
|
+
|
|
|
+/**
|
|
|
+ * Extract all object values from a JSON array associated with a given char* key.
|
|
|
+ */
|
|
|
+FuriString **get_json_array_values_furi(const char *key, const FuriString *json_data, int *num_values)
|
|
|
+{
|
|
|
+ *num_values = 0;
|
|
|
+ // Convert key to FuriString and call get_json_value_furi
|
|
|
+ FuriString *array_str = get_json_value_furi(key, json_data);
|
|
|
+ if (array_str == NULL)
|
|
|
+ {
|
|
|
+ FURI_LOG_E("JSMM.H", "Failed to get array for key");
|
|
|
+ return NULL;
|
|
|
+ }
|
|
|
+
|
|
|
+ uint32_t max_tokens = json_token_count_furi(array_str);
|
|
|
+ jsmn_parser parser;
|
|
|
+ jsmn_init_furi(&parser);
|
|
|
+
|
|
|
+ jsmntok_t *tokens = (jsmntok_t *)malloc(sizeof(jsmntok_t) * max_tokens);
|
|
|
+ if (tokens == NULL)
|
|
|
+ {
|
|
|
+ FURI_LOG_E("JSMM.H", "Failed to allocate memory for JSON tokens.");
|
|
|
+ furi_string_free(array_str);
|
|
|
+ return NULL;
|
|
|
+ }
|
|
|
+
|
|
|
+ int ret = jsmn_parse_furi(&parser, array_str, tokens, max_tokens);
|
|
|
+ if (ret < 0)
|
|
|
+ {
|
|
|
+ FURI_LOG_E("JSMM.H", "Failed to parse JSON array: %d", ret);
|
|
|
+ free(tokens);
|
|
|
+ furi_string_free(array_str);
|
|
|
+ return NULL;
|
|
|
+ }
|
|
|
+
|
|
|
+ if (tokens[0].type != JSMN_ARRAY)
|
|
|
+ {
|
|
|
+ FURI_LOG_E("JSMM.H", "Value for key is not an array.");
|
|
|
+ free(tokens);
|
|
|
+ furi_string_free(array_str);
|
|
|
+ return NULL;
|
|
|
+ }
|
|
|
+
|
|
|
+ int array_size = tokens[0].size;
|
|
|
+ FuriString **values = (FuriString **)malloc(array_size * sizeof(FuriString *));
|
|
|
+ if (values == NULL)
|
|
|
+ {
|
|
|
+ FURI_LOG_E("JSMM.H", "Failed to allocate memory for array of values.");
|
|
|
+ free(tokens);
|
|
|
+ furi_string_free(array_str);
|
|
|
+ return NULL;
|
|
|
+ }
|
|
|
+
|
|
|
+ int actual_num_values = 0;
|
|
|
+ int current_token = 1;
|
|
|
+ for (int i = 0; i < array_size; i++)
|
|
|
+ {
|
|
|
+ if (current_token >= ret)
|
|
|
+ {
|
|
|
+ FURI_LOG_E("JSMM.H", "Unexpected end of tokens while traversing array.");
|
|
|
+ break;
|
|
|
+ }
|
|
|
+
|
|
|
+ jsmntok_t element = tokens[current_token];
|
|
|
+
|
|
|
+ int length = element.end - element.start;
|
|
|
+ FuriString *value = furi_string_alloc_set(array_str);
|
|
|
+ furi_string_mid(value, element.start, length);
|
|
|
+
|
|
|
+ values[actual_num_values] = value;
|
|
|
+ actual_num_values++;
|
|
|
+
|
|
|
+ // Skip this element and its descendants
|
|
|
+ current_token = skip_token(tokens, current_token, ret);
|
|
|
+ if (current_token == -1)
|
|
|
+ {
|
|
|
+ FURI_LOG_E("JSMM.H", "Error skipping tokens after element %d.", i);
|
|
|
+ break;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ *num_values = actual_num_values;
|
|
|
+ if (actual_num_values < array_size)
|
|
|
+ {
|
|
|
+ FuriString **reduced_values = (FuriString **)realloc(values, actual_num_values * sizeof(FuriString *));
|
|
|
+ if (reduced_values != NULL)
|
|
|
+ {
|
|
|
+ values = reduced_values;
|
|
|
+ }
|
|
|
+ }
|
|
|
+
|
|
|
+ free(tokens);
|
|
|
+ furi_string_free(array_str);
|
|
|
+ return values;
|
|
|
+}
|
|
|
+
|
|
|
+uint32_t json_token_count_furi(const FuriString *json)
|
|
|
+{
|
|
|
+ if (json == NULL)
|
|
|
+ {
|
|
|
+ return JSMN_ERROR_INVAL;
|
|
|
+ }
|
|
|
+
|
|
|
+ jsmn_parser parser;
|
|
|
+ jsmn_init_furi(&parser);
|
|
|
+
|
|
|
+ // Pass NULL for tokens and 0 for num_tokens to get the token count only
|
|
|
+ int ret = jsmn_parse_furi(&parser, json, NULL, 0);
|
|
|
+ return ret; // If ret >= 0, it represents the number of tokens needed.
|
|
|
+}
|
jblanked