summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--src/json/json_helper.c183
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 */