int main()
{
//unsigned short retcode; //保存服务器http返回码的解析结果;
//const char *retinfo; //保存通过retcode获得的错误信息
oss_client_t *client = client_initialize_with_endpoint(access_id, access_key, endpoint);
const char *bucket_name = "bucket_example"; //设置bucket_name
const char *key = "a.txt";
time_t t = time(NULL);
t += 60;
char expiration[20];
sprintf(expiration, "%ld", t);
printf("expiration = %s\n", expiration);
char * url = client_generate_presigned_url_with_expiration(client, bucket_name, key, expiration);
printf("url = %s\n", url);
if(url != NULL) {
free(url);
url = NULL;
}
client_finalize(client);
return 0;
}
char *
client_generate_presigned_url_with_method(oss_client_t *client,
const char *bucket_name,
const char *key,
const char *expiration,
const char *method)
{
assert(client != NULL);
assert(bucket_name != NULL);
assert(key != NULL);
assert(expiration != NULL);
if((method == NULL) || !strcmp(method, ""))
return client_generate_presigned_url_with_expiration(client,
bucket_name, key, expiration);
unsigned int bucket_name_len = strlen(bucket_name);
unsigned int key_len = strlen(key);
char *url = (char *)malloc(sizeof(char) * (bucket_name_len + key_len) + 256);
char *resource = (char *)malloc(sizeof(char) * (bucket_name_len + key_len) + 16);
unsigned int sign_len = 0;
oss_map_t * default_headers = oss_map_new(1);
/* *
* 构造各参数
*/
sprintf(resource, "/%s/%s", bucket_name, key);
oss_map_put(default_headers, OSS_DATE, expiration);
/**
* 生成签名值
*/
char *sign = generate_authentication(client->access_key, method,
default_headers, NULL, resource, &sign_len);
sprintf(url, "http://%s%s?OSSAccessKeyId=%s&Expires=%s&Signature=%s", client->endpoint, resource, client->access_id, expiration, sign);
oss_map_delete(default_headers);
if(sign != NULL) {
free(sign);
sign = NULL;
}
if(resource != NULL) {
free(resource);
resource = NULL;
}
return url;
}
