diff options
Diffstat (limited to 'src/json')
| -rw-r--r-- | src/json/json_helper.c | 183 |
1 files changed, 122 insertions, 61 deletions
diff --git a/src/json/json_helper.c b/src/json/json_helper.c index c30e8289..f3070588 100644 --- a/src/json/json_helper.c +++ b/src/json/json_helper.c @@ -1,6 +1,6 @@ /* This file is part of TALER - Copyright (C) 2014-2020 Taler Systems SA + Copyright (C) 2014-2021 Taler Systems SA TALER is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software @@ -26,12 +26,6 @@ #include "taler_json_lib.h" -/** - * Convert a TALER amount to a JSON object. - * - * @param amount the amount - * @return a json object describing the amount - */ json_t * TALER_JSON_from_amount (const struct TALER_Amount *amount) { @@ -47,12 +41,6 @@ TALER_JSON_from_amount (const struct TALER_Amount *amount) } -/** - * Convert a TALER amount to a JSON object. - * - * @param amount the amount - * @return a json object describing the amount - */ json_t * TALER_JSON_from_amount_nbo (const struct TALER_AmountNBO *amount) { @@ -96,12 +84,6 @@ parse_amount (void *cls, } -/** - * Provide specification to parse given JSON object to an amount. - * - * @param name name of the amount field in the JSON - * @param[out] r_amount where the amount has to be written - */ struct GNUNET_JSON_Specification TALER_JSON_spec_amount (const char *name, struct TALER_Amount *r_amount) @@ -151,12 +133,6 @@ parse_amount_nbo (void *cls, } -/** - * Provide specification to parse given JSON object to an amount. - * - * @param name name of the amount field in the JSON - * @param[out] r_amount where the amount has to be written - */ struct GNUNET_JSON_Specification TALER_JSON_spec_amount_nbo (const char *name, struct TALER_AmountNBO *r_amount) @@ -234,13 +210,6 @@ parse_abs_time (void *cls, } -/** - * Provide specification to parse given JSON object to an absolute time. - * The absolute time value is expected to be already rounded. - * - * @param name name of the time field in the JSON - * @param[out] r_time where the time has to be written - */ struct GNUNET_JSON_Specification TALER_JSON_spec_absolute_time (const char *name, struct GNUNET_TIME_Absolute *r_time) @@ -289,14 +258,6 @@ parse_abs_time_nbo (void *cls, } -/** - * Provide specification to parse given JSON object to an absolute time - * in network byte order. - * The absolute time value is expected to be already rounded. - * - * @param name name of the time field in the JSON - * @param[out] r_time where the time has to be written - */ struct GNUNET_JSON_Specification TALER_JSON_spec_absolute_time_nbo (const char *name, struct GNUNET_TIME_AbsoluteNBO *r_time) @@ -375,13 +336,6 @@ parse_rel_time (void *cls, } -/** - * Provide specification to parse given JSON object to a relative time. - * The absolute time value is expected to be already rounded. - * - * @param name name of the time field in the JSON - * @param[out] r_time where the time has to be written - */ struct GNUNET_JSON_Specification TALER_JSON_spec_relative_time (const char *name, struct GNUNET_TIME_Relative *r_time) @@ -400,13 +354,6 @@ TALER_JSON_spec_relative_time (const char *name, } -/** - * Generate line in parser specification for denomination public key. - * - * @param field name of the field - * @param[out] pk key to initialize - * @return corresponding field spec - */ struct GNUNET_JSON_Specification TALER_JSON_spec_denomination_public_key (const char *field, struct TALER_DenominationPublicKey *pk) @@ -416,13 +363,6 @@ TALER_JSON_spec_denomination_public_key (const char *field, } -/** - * Generate line in parser specification for denomination signature. - * - * @param field name of the field - * @param sig the signature to initialize - * @return corresponding field spec - */ struct GNUNET_JSON_Specification TALER_JSON_spec_denomination_signature (const char *field, struct TALER_DenominationSignature *sig) @@ -432,4 +372,125 @@ TALER_JSON_spec_denomination_signature (const char *field, } +/** + * Closure for #parse_i18n_string. + */ +struct I18nContext +{ + /** + * Language pattern to match. + */ + const char *lp; + + /** + * Name of the field to match. + */ + const char *field; +}; + + +/** + * Parse given JSON object to internationalized string. + * + * @param cls closure, our `struct I18nContext *` + * @param root the json object representing data + * @param[out] spec where to write the data + * @return #GNUNET_OK upon successful parsing; #GNUNET_SYSERR upon error + */ +static int +parse_i18n_string (void *cls, + json_t *root, + struct GNUNET_JSON_Specification *spec) +{ + struct I18nContext *ctx = cls; + json_t *i18n; + json_t *val; + + { + char *i18nf; + + GNUNET_asprintf (&i18nf, + "%s_i18n", + ctx->field); + i18n = json_object_get (root, + i18nf); + GNUNET_free (i18nf); + } + + val = json_object_get (root, + ctx->field); + if (NULL != i18n) + { + double best = 0.0; + json_t *pos; + const char *lang; + + json_object_foreach (i18n, lang, pos) + { + double score; + + score = TALER_language_matches (ctx->lp, + lang); + if (score > best) + { + best = score; + val = pos; + } + } + } + + { + const char *str; + + str = json_string_value (val); + if (NULL == str) + { + GNUNET_break_op (0); + return GNUNET_SYSERR; + } + *(const char **) spec->ptr = str; + } + return GNUNET_OK; +} + + +/** + * Function called to clean up data from earlier parsing. + * + * @param cls closure + * @param spec our specification entry with data to clean. + */ +static void +i18n_cleaner (void *cls, + struct GNUNET_JSON_Specification *spec) +{ + struct I18nContext *ctx = cls; + + GNUNET_free (ctx); +} + + +struct GNUNET_JSON_Specification +TALER_JSON_spec_i18n_string (const char *name, + const char *language_pattern, + const char **strptr) +{ + struct I18nContext *ctx = GNUNET_new (struct I18nContext); + struct GNUNET_JSON_Specification ret = { + .parser = &parse_i18n_string, + .cleaner = &i18n_cleaner, + .cls = ctx, + .field = NULL, /* we want the main object */ + .ptr = strptr, + .ptr_size = 0, + .size_ptr = NULL + }; + + ctx->lp = language_pattern; + ctx->field = name; + *strptr = NULL; + return ret; +} + + /* end of json/json_helper.c */ |