forked from benmcollins/libjwt
/
jwt.c
1321 lines (1034 loc) · 25 KB
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jwt.c
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/* Copyright (C) 2015-2016 Ben Collins <ben@cyphre.com>
This file is part of the JWT C Library
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the JWT Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <openssl/bio.h>
#include <openssl/evp.h>
#include <openssl/hmac.h>
#include <openssl/buffer.h>
#include <openssl/pem.h>
#include <jansson.h>
#include <jwt.h>
#if !defined(USE_CMAKE)
#include "config.h"
#endif
/* functions to make libjwt backward compatible with OpenSSL version < 1.1.0
* See https://wiki.openssl.org/index.php/1.1_API_Changes
*/
#if OPENSSL_VERSION_NUMBER < 0x10100000L
static void ECDSA_SIG_get0(const ECDSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps)
{
if (pr != NULL)
*pr = sig->r;
if (ps != NULL)
*ps = sig->s;
}
static int ECDSA_SIG_set0(ECDSA_SIG *sig, BIGNUM *r, BIGNUM *s)
{
if (r == NULL || s == NULL)
return 0;
BN_clear_free(sig->r);
BN_clear_free(sig->s);
sig->r = r;
sig->s = s;
return 1;
}
#endif
struct jwt {
jwt_alg_t alg;
json_t *params; /* everything except alg */
unsigned char *key;
int key_len;
json_t *grants;
};
static const char *jwt_alg_str(jwt_alg_t alg)
{
switch (alg) {
case JWT_ALG_NONE:
return "none";
case JWT_ALG_HS256:
return "HS256";
case JWT_ALG_HS384:
return "HS384";
case JWT_ALG_HS512:
return "HS512";
case JWT_ALG_RS256:
return "RS256";
case JWT_ALG_RS384:
return "RS384";
case JWT_ALG_RS512:
return "RS512";
case JWT_ALG_ES256:
return "ES256";
case JWT_ALG_ES384:
return "ES384";
case JWT_ALG_ES512:
return "ES512";
default:
return NULL;
}
}
static int jwt_str_alg(jwt_t *jwt, const char *alg)
{
if (alg == NULL)
return EINVAL;
if (!strcasecmp(alg, "none"))
jwt->alg = JWT_ALG_NONE;
else if (!strcasecmp(alg, "HS256"))
jwt->alg = JWT_ALG_HS256;
else if (!strcasecmp(alg, "HS384"))
jwt->alg = JWT_ALG_HS384;
else if (!strcasecmp(alg, "HS512"))
jwt->alg = JWT_ALG_HS512;
else if (!strcasecmp(alg, "RS256"))
jwt->alg = JWT_ALG_RS256;
else if (!strcasecmp(alg, "RS384"))
jwt->alg = JWT_ALG_RS384;
else if (!strcasecmp(alg, "RS512"))
jwt->alg = JWT_ALG_RS512;
else if (!strcasecmp(alg, "ES256"))
jwt->alg = JWT_ALG_ES256;
else if (!strcasecmp(alg, "ES384"))
jwt->alg = JWT_ALG_ES384;
else if (!strcasecmp(alg, "ES512"))
jwt->alg = JWT_ALG_ES512;
else
return EINVAL;
return 0;
}
static void jwt_scrub_key(jwt_t *jwt)
{
if (jwt->key) {
/* Overwrite it so it's gone from memory. */
memset(jwt->key, 0, jwt->key_len);
free(jwt->key);
jwt->key = NULL;
}
jwt->key_len = 0;
jwt->alg = JWT_ALG_NONE;
}
int jwt_set_alg(jwt_t *jwt, jwt_alg_t alg, const unsigned char *key, int len)
{
/* No matter what happens here, we do this. */
jwt_scrub_key(jwt);
if (alg < JWT_ALG_NONE || alg >= JWT_ALG_TERM)
return EINVAL;
switch (alg) {
case JWT_ALG_NONE:
if (key || len)
return EINVAL;
break;
default:
if (!key || len <= 0)
return EINVAL;
jwt->key = malloc(len);
if (!jwt->key)
return ENOMEM;
memcpy(jwt->key, key, len);
}
jwt->alg = alg;
jwt->key_len = len;
return 0;
}
jwt_alg_t jwt_get_alg(jwt_t *jwt)
{
return jwt->alg;
}
int jwt_new(jwt_t **jwt)
{
if (!jwt)
return EINVAL;
*jwt = malloc(sizeof(jwt_t));
if (!*jwt)
return ENOMEM;
memset(*jwt, 0, sizeof(jwt_t));
(*jwt)->grants = json_object();
(*jwt)->params = json_object();
if (!((*jwt)->grants) || !((*jwt)->params)) {
free((*jwt)->grants);
free((*jwt)->params);
free(*jwt);
*jwt = NULL;
return ENOMEM;
}
return 0;
}
void jwt_free(jwt_t *jwt)
{
if (!jwt)
return;
jwt_scrub_key(jwt);
json_decref(jwt->grants);
json_decref(jwt->params);
free(jwt);
}
jwt_t *jwt_dup(jwt_t *jwt)
{
jwt_t *new = NULL;
if (!jwt) {
errno = EINVAL;
goto dup_fail;
}
errno = 0;
new = malloc(sizeof(jwt_t));
if (!new) {
errno = ENOMEM;
return NULL;
}
memset(new, 0, sizeof(jwt_t));
if (jwt->key_len) {
new->alg = jwt->alg;
new->key = malloc(jwt->key_len);
if (!new->key) {
errno = ENOMEM;
goto dup_fail;
}
memcpy(new->key, jwt->key, jwt->key_len);
new->key_len = jwt->key_len;
}
new->grants = json_deep_copy(jwt->grants);
if (!new->grants)
errno = ENOMEM;
new->params = json_deep_copy(jwt->params);
if (!new->params)
errno = ENOMEM;
dup_fail:
if (errno) {
jwt_free(new);
new = NULL;
}
return new;
}
static const char *get_js_string(json_t *js, const char *key)
{
const char *val = NULL;
json_t *js_val;
js_val = json_object_get(js, key);
if (js_val)
val = json_string_value(js_val);
return val;
}
static long get_js_int(json_t *js, const char *key)
{
long val = -1;
json_t *js_val;
js_val = json_object_get(js, key);
if (js_val)
val = (long)json_integer_value(js_val);
return val;
}
static void *jwt_b64_decode(const char *src, int *ret_len)
{
BIO *b64, *bmem;
void *buf;
char *new;
int len, i, z;
/* Decode based on RFC-4648 URI safe encoding. */
len = strlen(src);
new = alloca(len + 4);
if (!new)
return NULL;
for (i = 0; i < len; i++) {
switch (src[i]) {
case '-':
new[i] = '+';
break;
case '_':
new[i] = '/';
break;
default:
new[i] = src[i];
}
}
z = 4 - (i % 4);
if (z < 4) {
while (z--)
new[i++] = '=';
}
new[i] = '\0';
/* Setup the OpenSSL base64 decoder. */
b64 = BIO_new(BIO_f_base64());
bmem = BIO_new_mem_buf(new, strlen(new));
if (!b64 || !bmem)
return NULL;
BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL);
BIO_push(b64, bmem);
len = BIO_pending(b64);
if (len <= 0) {
BIO_free_all(b64);
return NULL;
}
buf = malloc(len + 1);
if (!buf) {
BIO_free_all(b64);
return NULL;
}
*ret_len = BIO_read(b64, buf, len);
BIO_free_all(b64);
return buf;
}
static json_t *jwt_b64_decode_json(char *src)
{
json_t *js;
char *buf;
int len;
buf = jwt_b64_decode(src, &len);
if (buf == NULL)
return NULL;
buf[len] = '\0';
js = json_loads(buf, 0, NULL);
free(buf);
return js;
}
static void base64uri_encode(char *str)
{
int len = strlen(str);
int i, t;
for (i = t = 0; i < len; i++) {
switch (str[i]) {
case '+':
str[t++] = '-';
break;
case '/':
str[t++] = '_';
break;
case '=':
break;
default:
str[t++] = str[i];
}
}
str[t] = '\0';
}
static int jwt_sign_sha_hmac(jwt_t *jwt, BIO *out, const EVP_MD *alg,
const char *str)
{
unsigned char res[EVP_MAX_MD_SIZE];
unsigned int res_len;
HMAC(alg, jwt->key, jwt->key_len,
(const unsigned char *)str, strlen(str), res, &res_len);
BIO_write(out, res, res_len);
BIO_flush(out);
return 0;
}
static int jwt_verify_sha_hmac(jwt_t *jwt, const EVP_MD *alg, const char *head,
const char *sig)
{
unsigned char res[EVP_MAX_MD_SIZE];
BIO *bmem = NULL, *b64 = NULL;
unsigned int res_len;
char *buf;
int len, ret = EINVAL;
b64 = BIO_new(BIO_f_base64());
if (b64 == NULL)
return ENOMEM;
bmem = BIO_new(BIO_s_mem());
if (bmem == NULL) {
BIO_free(b64);
return ENOMEM;
}
BIO_push(b64, bmem);
BIO_set_flags(b64, BIO_FLAGS_BASE64_NO_NL);
HMAC(alg, jwt->key, jwt->key_len,
(const unsigned char *)head, strlen(head), res, &res_len);
BIO_write(b64, res, res_len);
BIO_flush(b64);
len = BIO_pending(bmem);
if (len < 0)
goto jwt_verify_hmac_done;
buf = alloca(len + 1);
if (!buf) {
ret = ENOMEM;
goto jwt_verify_hmac_done;
}
len = BIO_read(bmem, buf, len);
buf[len] = '\0';
base64uri_encode(buf);
/* And now... */
ret = strcmp(buf, sig) ? EINVAL : 0;
jwt_verify_hmac_done:
BIO_free_all(b64);
return ret;
}
#define SIGN_ERROR(__err) ({ ret = __err; goto jwt_sign_sha_pem_done; })
static int jwt_sign_sha_pem(jwt_t *jwt, BIO *out, const EVP_MD *alg,
const char *str, int type)
{
EVP_MD_CTX *mdctx = NULL;
ECDSA_SIG *ec_sig = NULL;
const BIGNUM *ec_sig_r = NULL;
const BIGNUM *ec_sig_s = NULL;
BIO *bufkey = NULL;
EVP_PKEY *pkey = NULL;
int pkey_type;
unsigned char *sig;
int ret = 0;
size_t slen;
bufkey = BIO_new_mem_buf(jwt->key, jwt->key_len);
if (bufkey == NULL)
SIGN_ERROR(ENOMEM);
/* This uses OpenSSL's default passphrase callback if needed. The
* library caller can override this in many ways, all of which are
* outside of the scope of LibJWT and this is documented in jwt.h. */
pkey = PEM_read_bio_PrivateKey(bufkey, NULL, NULL, NULL);
if (pkey == NULL)
SIGN_ERROR(EINVAL);
pkey_type = EVP_PKEY_id(pkey);
if (pkey_type != type)
SIGN_ERROR(EINVAL);
mdctx = EVP_MD_CTX_create();
if (mdctx == NULL)
SIGN_ERROR(ENOMEM);
/* Initialize the DigestSign operation using alg */
if (EVP_DigestSignInit(mdctx, NULL, alg, NULL, pkey) != 1)
SIGN_ERROR(EINVAL);
/* Call update with the message */
if (EVP_DigestSignUpdate(mdctx, str, strlen(str)) != 1)
SIGN_ERROR(EINVAL);
/* First, call EVP_DigestSignFinal with a NULL sig parameter to get length
* of sig. Length is returned in slen */
if (EVP_DigestSignFinal(mdctx, NULL, &slen) != 1)
SIGN_ERROR(EINVAL);
/* Allocate memory for signature based on returned size */
sig = alloca(slen);
if (sig == NULL)
SIGN_ERROR(ENOMEM);
/* Get the signature */
if (EVP_DigestSignFinal(mdctx, sig, &slen) != 1)
SIGN_ERROR(EINVAL);
if (pkey_type != EVP_PKEY_EC) {
BIO_write(out, sig, slen);
BIO_flush(out);
} else {
unsigned int degree, bn_len, r_len, s_len, buf_len;
unsigned char *raw_buf;
EC_KEY *ec_key;
/* For EC we need to convert to a raw format of R/S. */
/* Get the actual ec_key */
ec_key = EVP_PKEY_get1_EC_KEY(pkey);
if (ec_key == NULL)
SIGN_ERROR(ENOMEM);
degree = EC_GROUP_get_degree(EC_KEY_get0_group(ec_key));
EC_KEY_free(ec_key);
/* Get the sig from the DER encoded version. */
ec_sig = d2i_ECDSA_SIG(NULL, (const unsigned char **)&sig, slen);
if (ec_sig == NULL)
SIGN_ERROR(ENOMEM);
ECDSA_SIG_get0(ec_sig, &ec_sig_r, &ec_sig_s);
r_len = BN_num_bytes(ec_sig_r);
s_len = BN_num_bytes(ec_sig_s);
bn_len = (degree + 7) / 8;
if ((r_len > bn_len) || (s_len > bn_len))
SIGN_ERROR(EINVAL);
buf_len = 2 * bn_len;
raw_buf = alloca(buf_len);
if (raw_buf == NULL)
SIGN_ERROR(ENOMEM);
/* Pad the bignums with leading zeroes. */
memset(raw_buf, 0, buf_len);
BN_bn2bin(ec_sig_r, raw_buf + bn_len - r_len);
BN_bn2bin(ec_sig_s, raw_buf + buf_len - s_len);
BIO_write(out, raw_buf, buf_len);
BIO_flush(out);
}
jwt_sign_sha_pem_done:
if (bufkey)
BIO_free(bufkey);
if (pkey)
EVP_PKEY_free(pkey);
if (mdctx)
EVP_MD_CTX_destroy(mdctx);
if (ec_sig)
ECDSA_SIG_free(ec_sig);
return ret;
}
#define VERIFY_ERROR(__err) ({ ret = __err; goto jwt_verify_sha_pem_done; })
static int jwt_verify_sha_pem(jwt_t *jwt, const EVP_MD *alg, int type,
const char *head, const char *sig_b64)
{
unsigned char *sig = NULL;
EVP_MD_CTX *mdctx = NULL;
ECDSA_SIG *ec_sig = NULL;
BIGNUM *ec_sig_r = NULL;
BIGNUM *ec_sig_s = NULL;
EVP_PKEY *pkey = NULL;
int pkey_type;
BIO *bufkey = NULL;
int ret = 0;
int slen;
sig = jwt_b64_decode(sig_b64, &slen);
if (sig == NULL)
VERIFY_ERROR(EINVAL);
bufkey = BIO_new_mem_buf(jwt->key, jwt->key_len);
if (bufkey == NULL)
VERIFY_ERROR(ENOMEM);
/* This uses OpenSSL's default passphrase callback if needed. The
* library caller can override this in many ways, all of which are
* outside of the scope of LibJWT and this is documented in jwt.h. */
pkey = PEM_read_bio_PUBKEY(bufkey, NULL, NULL, NULL);
if (pkey == NULL)
VERIFY_ERROR(EINVAL);
pkey_type = EVP_PKEY_id(pkey);
if (pkey_type != type)
VERIFY_ERROR(EINVAL);
/* Convert EC sigs back to ASN1. */
if (pkey_type == EVP_PKEY_EC) {
unsigned int degree, bn_len;
unsigned char *p;
EC_KEY *ec_key;
ec_sig = ECDSA_SIG_new();
if (ec_sig == NULL)
VERIFY_ERROR(ENOMEM);
/* Get the actual ec_key */
ec_key = EVP_PKEY_get1_EC_KEY(pkey);
if (ec_key == NULL)
VERIFY_ERROR(ENOMEM);
degree = EC_GROUP_get_degree(EC_KEY_get0_group(ec_key));
EC_KEY_free(ec_key);
bn_len = (degree + 7) / 8;
if ((bn_len * 2) != slen)
VERIFY_ERROR(EINVAL);
ec_sig_r = BN_bin2bn(sig, bn_len, NULL);
ec_sig_s = BN_bin2bn(sig + bn_len, bn_len, NULL);
if (ec_sig_r == NULL || ec_sig_s == NULL)
VERIFY_ERROR(EINVAL);
ECDSA_SIG_set0(ec_sig, ec_sig_r, ec_sig_s);
free(sig);
slen = i2d_ECDSA_SIG(ec_sig, NULL);
sig = malloc(slen);
if (sig == NULL)
VERIFY_ERROR(ENOMEM);
p = sig;
slen = i2d_ECDSA_SIG(ec_sig, &p);
if (slen == 0)
VERIFY_ERROR(EINVAL);
}
mdctx = EVP_MD_CTX_create();
if (mdctx == NULL)
VERIFY_ERROR(ENOMEM);
/* Initialize the DigestVerify operation using alg */
if (EVP_DigestVerifyInit(mdctx, NULL, alg, NULL, pkey) != 1)
VERIFY_ERROR(EINVAL);
/* Call update with the message */
if (EVP_DigestVerifyUpdate(mdctx, head, strlen(head)) != 1)
VERIFY_ERROR(EINVAL);
/* Now check the sig for validity. */
if (EVP_DigestVerifyFinal(mdctx, sig, slen) != 1)
VERIFY_ERROR(EINVAL);
jwt_verify_sha_pem_done:
if (bufkey)
BIO_free(bufkey);
if (pkey)
EVP_PKEY_free(pkey);
if (mdctx)
EVP_MD_CTX_destroy(mdctx);
if (sig)
free(sig);
if (ec_sig)
ECDSA_SIG_free(ec_sig);
return ret;
}
static int jwt_sign(jwt_t *jwt, BIO *out, const char *str)
{
switch (jwt->alg) {
/* HMAC */
case JWT_ALG_HS256:
return jwt_sign_sha_hmac(jwt, out, EVP_sha256(), str);
case JWT_ALG_HS384:
return jwt_sign_sha_hmac(jwt, out, EVP_sha384(), str);
case JWT_ALG_HS512:
return jwt_sign_sha_hmac(jwt, out, EVP_sha512(), str);
/* RSA */
case JWT_ALG_RS256:
return jwt_sign_sha_pem(jwt, out, EVP_sha256(), str,
EVP_PKEY_RSA);
case JWT_ALG_RS384:
return jwt_sign_sha_pem(jwt, out, EVP_sha384(), str,
EVP_PKEY_RSA);
case JWT_ALG_RS512:
return jwt_sign_sha_pem(jwt, out, EVP_sha512(), str,
EVP_PKEY_RSA);
/* ECC */
case JWT_ALG_ES256:
return jwt_sign_sha_pem(jwt, out, EVP_sha256(), str,
EVP_PKEY_EC);
case JWT_ALG_ES384:
return jwt_sign_sha_pem(jwt, out, EVP_sha384(), str,
EVP_PKEY_EC);
case JWT_ALG_ES512:
return jwt_sign_sha_pem(jwt, out, EVP_sha512(), str,
EVP_PKEY_EC);
/* You wut, mate? */
default:
return EINVAL;
}
}
static int jwt_verify(jwt_t *jwt, const char *head, const char *sig)
{
switch (jwt->alg) {
/* HMAC */
case JWT_ALG_HS256:
return jwt_verify_sha_hmac(jwt, EVP_sha256(), head, sig);
case JWT_ALG_HS384:
return jwt_verify_sha_hmac(jwt, EVP_sha384(), head, sig);
case JWT_ALG_HS512:
return jwt_verify_sha_hmac(jwt, EVP_sha512(), head, sig);
/* RSA */
case JWT_ALG_RS256:
return jwt_verify_sha_pem(jwt, EVP_sha256(), EVP_PKEY_RSA,
head, sig);
case JWT_ALG_RS384:
return jwt_verify_sha_pem(jwt, EVP_sha384(), EVP_PKEY_RSA,
head, sig);
case JWT_ALG_RS512:
return jwt_verify_sha_pem(jwt, EVP_sha512(), EVP_PKEY_RSA,
head, sig);
/* ECC */
case JWT_ALG_ES256:
return jwt_verify_sha_pem(jwt, EVP_sha256(), EVP_PKEY_EC,
head, sig);
case JWT_ALG_ES384:
return jwt_verify_sha_pem(jwt, EVP_sha384(), EVP_PKEY_EC,
head, sig);
case JWT_ALG_ES512:
return jwt_verify_sha_pem(jwt, EVP_sha512(), EVP_PKEY_EC,
head, sig);
/* You wut, mate? */
default:
return EINVAL;
}
}
static int jwt_parse_body(jwt_t *jwt, char *body)
{
if (jwt->grants) {
json_decref(jwt->grants);
jwt->grants = NULL;
}
jwt->grants = jwt_b64_decode_json(body);
if (!jwt->grants)
return EINVAL;
return 0;
}
static int jwt_verify_head(jwt_t *jwt, char *head)
{
json_t *js = NULL;
const char *val;
int ret;
if (jwt->params) {
json_decref(jwt->params);
jwt->params = NULL;
}
js = jwt_b64_decode_json(head);
if (!js)
return EINVAL;
val = get_js_string(js, "alg");
ret = jwt_str_alg(jwt, val);
if (ret)
goto verify_head_done;
if (jwt->alg != JWT_ALG_NONE) {
/* If alg is not NONE, there may be a typ. */
val = get_js_string(js, "typ");
if (val && strcasecmp(val, "JWT"))
ret = EINVAL;
if (jwt->key) {
if (jwt->key_len <= 0)
ret = EINVAL;
} else {
jwt_scrub_key(jwt);
}
} else {
/* If alg is NONE, there should not be a key */
if (jwt->key){
ret = EINVAL;
}
}
/* only successfully verified params to the jwt */
if (EINVAL != ret) {
if (jwt->params) {
json_decref(jwt->params);
jwt->params = NULL;
}
jwt->params = js;
json_incref(jwt->params);
}
verify_head_done:
if (js)
json_decref(js);
return ret;
}
int jwt_decode(jwt_t **jwt, const char *token, const unsigned char *key,
int key_len)
{
char *head = strdup(token);
jwt_t *new = NULL;
char *body, *sig;
int ret = EINVAL;
if (!jwt)
return EINVAL;
*jwt = NULL;
if (!head)
return ENOMEM;
/* Find the components. */
for (body = head; body[0] != '.'; body++) {
if (body[0] == '\0')
goto decode_done;
}
body[0] = '\0';
body++;
for (sig = body; sig[0] != '.'; sig++) {
if (sig[0] == '\0')
goto decode_done;
}
sig[0] = '\0';
sig++;
/* Now that we have everything split up, let's check out the
* header. */
ret = jwt_new(&new);
if (ret) {
goto decode_done;
}
/* Copy the key over for verify_head. */
if (key_len) {
new->key = malloc(key_len);
if (new->key == NULL)
goto decode_done;
memcpy(new->key, key, key_len);
new->key_len = key_len;
}
ret = jwt_verify_head(new, head);
if (ret)
goto decode_done;
ret = jwt_parse_body(new, body);
if (ret)
goto decode_done;
/* Check the signature, if needed. */
if (new->alg != JWT_ALG_NONE) {
/* Re-add this since it's part of the verified data. */
body[-1] = '.';
ret = jwt_verify(new, head, sig);
} else {
ret = 0;
}
decode_done:
if (ret)
jwt_free(new);
else
*jwt = new;
free(head);
return ret;
}
const char *jwt_get_grant(jwt_t *jwt, const char *grant)
{
if (!jwt || !grant || !strlen(grant)) {
errno = EINVAL;
return NULL;
}
errno = 0;
return get_js_string(jwt->grants, grant);
}
long jwt_get_grant_int(jwt_t *jwt, const char *grant)
{
if (!jwt || !grant || !strlen(grant)) {
errno = EINVAL;
return 0;
}
errno = 0;
return get_js_int(jwt->grants, grant);
}
char *jwt_get_grants_json(jwt_t *jwt, const char *grant)
{
json_t *js_val = NULL;
errno = EINVAL;
if (!jwt)
return NULL;
if (grant && strlen(grant))
js_val = json_object_get(jwt->grants, grant);
else
js_val = jwt->grants;
if (js_val == NULL)
return NULL;
errno = 0;
return json_dumps(js_val, JSON_SORT_KEYS | JSON_COMPACT | JSON_ENCODE_ANY);
}
int jwt_add_grant(jwt_t *jwt, const char *grant, const char *val)
{
if (!jwt || !grant || !strlen(grant) || !val)
return EINVAL;
if (get_js_string(jwt->grants, grant) != NULL)
return EEXIST;
if (json_object_set_new(jwt->grants, grant, json_string(val)))
return EINVAL;
return 0;
}
int jwt_add_grant_int(jwt_t *jwt, const char *grant, long val)
{
if (!jwt || !grant || !strlen(grant))
return EINVAL;
if (get_js_int(jwt->grants, grant) != -1)
return EEXIST;
if (json_object_set_new(jwt->grants, grant, json_integer((json_int_t)val)))
return EINVAL;
return 0;
}
int jwt_add_grants_json(jwt_t *jwt, const char *json)
{
json_t *js_val;
int ret = -1;
if (!jwt)
return EINVAL;
js_val = json_loads(json, JSON_REJECT_DUPLICATES, NULL);
if (json_is_object(js_val))
ret = json_object_update(jwt->grants, js_val);
json_decref(js_val);