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json: Add direct way to query a config option

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* src/gpgme-json.c (op_config_opt, hlp_config_opt): New operation.
(process_request, hlp_help): Add it.

--
This is more conveniant API for most query operations where
a single option is required.

An example would be:
{
    "op": "config_opt",
    "component": "gpg",
    "option": "default-key"
}

Which results in:
{
   "option":       {
           "name": "default-key",
           "description":  "use NAME as default secret key",
           "argname":      "NAME",
           "flags":        0,
           "level":        0,
           "type": 1,
           "alt_type":     1,
           "value":        [{
                           "string":       "F462B6B1",
                           "is_none":      false
                   }]
   }
}
This commit is contained in:
Andre Heinecke 2018-06-07 11:42:47 +02:00
parent 7e18c7a07a
commit 906ea48df3
No known key found for this signature in database
GPG Key ID: 2978E9D40CBABA5C
1 changed files with 109 additions and 12 deletions
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97
src/gpgme-json.c
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@ -2460,6 +2460,102 @@ leave:
}
static const char hlp_config_opt[] =
"op: \"config_opt\"\n"
"component: The component of the option.\n"
"option: The name of the option.\n"
"\n"
"Response on success:\n"
"\n"
"option: Information about the option.\n"
" String values:\n"
" name: The name of the option\n"
" description: Localized description of the opt.\n"
" argname: Thhe argument name e.g. --verbose\n"
" default_description\n"
" no_arg_description\n"
" Number values:\n"
" flags: Flags for this option.\n"
" level: the level of the description. See gpgme_conf_level_t.\n"
" type: The type of the option. See gpgme_conf_type_t.\n"
" alt_type: Alternate type of the option. See gpgme_conf_type_t\n"
" Arg type values: (see desc. below)\n"
" default_value: Array of the default value.\n"
" no_arg_value: Array of the value if it is not set.\n"
" value: Array for the current value if the option is set.\n"
"\n"
"If the response is empty the option was not found\n"
"";
static gpg_error_t
op_config_opt (cjson_t request, cjson_t result)
{
gpg_error_t err;
gpgme_ctx_t ctx = NULL;
gpgme_conf_comp_t conf = NULL;
gpgme_conf_comp_t comp = NULL;
cjson_t j_tmp;
char *comp_name = NULL;
char *opt_name = NULL;
ctx = get_context (GPGME_PROTOCOL_GPGCONF);
j_tmp = cJSON_GetObjectItem (request, "component");
if (!j_tmp || !cjson_is_string (j_tmp))
{
err = gpg_error (GPG_ERR_INV_VALUE);
goto leave;
}
comp_name = j_tmp->valuestring;
j_tmp = cJSON_GetObjectItem (request, "option");
if (!j_tmp || !cjson_is_string (j_tmp))
{
err = gpg_error (GPG_ERR_INV_VALUE);
goto leave;
}
opt_name = j_tmp->valuestring;
/* Load the config */
err = gpgme_op_conf_load (ctx, &conf);
if (err)
{
goto leave;
}
comp = conf;
for (comp = conf; comp; comp = comp->next)
{
gpgme_conf_opt_t opt = NULL;
int found = 0;
if (!comp->name || strcmp (comp->name, comp_name))
{
/* Skip components if a single one is specified */
continue;
}
for (opt = comp->options; opt; opt = opt->next)
{
if (!opt->name || strcmp (opt->name, opt_name))
{
/* Skip components if a single one is specified */
continue;
}
xjson_AddItemToObject (result, "option", conf_opt_to_json (opt));
found = 1;
break;
}
if (found)
break;
}
leave:
gpgme_conf_release (conf);
release_context (ctx);
return err;
}
static const char hlp_config[] =
"op: \"config\"\n"
"\n"
@ -2689,6 +2785,7 @@ process_request (const char *request)
const char * const helpstr;
} optbl[] = {
{ "config", op_config, hlp_config },
{ "config_opt", op_config_opt, hlp_config_opt },
{ "encrypt", op_encrypt, hlp_encrypt },
{ "export", op_export, hlp_export },
{ "decrypt", op_decrypt, hlp_decrypt },