#include "eSDKOBS.h"#include <stdio.h>#include <sys/stat.h>// 響應(yīng)回調(diào)函數(shù)，可以在這個回調(diào)中把properties的內(nèi)容記錄到callback_data(用戶自定義回調(diào)數(shù)據(jù))中obs_status response_properties_callback(const obs_response_properties *properties, void *callback_data);int put_file_data_callback(int buffer_size, char *buffer,    void *callback_data);void put_file_complete_callback(obs_status status,    const obs_error_details *error,    void *callback_data);typedef struct put_file_object_callback_data{    FILE *infile;    uint64_t content_length;    obs_status ret_status;} put_file_object_callback_data;uint64_t open_file_and_get_length(char *localfile, put_file_object_callback_data *data);int main(){    // 以下示例展示如何在使用自定義域名時通過put_object函數(shù)上傳本地文件：：    // 在程序入口調(diào)用obs_initialize方法來初始化網(wǎng)絡(luò)、內(nèi)存等全局資源。    obs_initialize(OBS_INIT_ALL);     obs_options options;    // 創(chuàng)建并初始化options，該參數(shù)包括訪問域名(host_name)、訪問密鑰（access_key_id和acces_key_secret）、桶名(bucket_name)、桶存儲類別(storage_class)等配置信息    init_obs_options(&options);    // host_name填寫桶所在的endpoint, 此處以華北-北京四為例，其他地區(qū)請按實(shí)際情況填寫。    options.bucket_options.host_name = "obs.cn-north-4.myhuaweicloud.com";    // 認(rèn)證用的ak和sk硬編碼到代碼中或者明文存儲都有很大的安全風(fēng)險，建議在配置文件或者環(huán)境變量中密文存放，使用時解密，確保安全；    // 本示例以ak和sk保存在環(huán)境變量中為例，運(yùn)行本示例前請先在本地環(huán)境中設(shè)置環(huán)境變量A CCE SS_KEY_ID和SECRET_AC CES S_KEY。    options.bucket_options.access_key = getenv("ACCESS_KEY_ID");    options.bucket_options.secret_access_key = getenv("SECRET_ACCESS_KEY");    char * bucketName = "";    options.bucket_options.bucket_name = bucketName;    // 設(shè)置自定義域名    options.bucket_options.useCname = true;    options.bucket_options.host_name = "example.obs.test.cname.com";    // 初始化上傳對象屬性    obs_put_properties put_properties;    init_put_properties(&put_properties);    // 上傳對象名    char *key = "example_get_file_test";    // 上傳的文件    char file_name[256] = "./example_local_file_test.txt";    uint64_t content_length = 0;    // 初始化存儲上傳數(shù)據(jù)的結(jié)構(gòu)體    put_file_object_callback_data data;    memset(&data, 0, sizeof(put_file_object_callback_data));    // 打開文件，并獲取文件長度    content_length = open_file_and_get_length(file_name, &data);    // 設(shè)置回調(diào)函數(shù)    obs_put_object_handler putobjectHandler =    {        { &response_properties_callback, &put_file_complete_callback },        &put_file_data_callback    };    put_object(&options, key, content_length, &put_properties, 0, &putobjectHandler, &data);    if (OBS_STATUS_OK == data.ret_status) {        printf("put object from file successfully. \n");    }    else    {        printf("put object failed(%s).\n",            obs_get_status_name(data.ret_status));    }    if (data.infile != NULL) {        fclose(data.infile);    }    // 釋放分配的全局資源    obs_deinitialize();}// 響應(yīng)回調(diào)函數(shù)，可以在這個回調(diào)中把properties的內(nèi)容記錄到callback_data(用戶自定義回調(diào)數(shù)據(jù))中obs_status response_properties_callback(const obs_response_properties *properties, void *callback_data){    if (properties == NULL)    {        printf("error! obs_response_properties is null!");        if (callback_data != NULL)        {            obs_sever_callback_data *data = (obs_sever_callback_data *)callback_data;            printf("server_callback buf is %s, len is %llu",                data->buffer, data->buffer_len);            return OBS_STATUS_OK;        }        else {            printf("error! obs_sever_callback_data is null!");            return OBS_STATUS_OK;        }    }    // 打印響應(yīng)信息#define print_nonnull(name, field)                                 \    do {                                                           \        if (properties-> field) {                                  \            printf("%s: %s\n", name, properties->field);          \        }                                                          \    } while (0)    print_nonnull("request_id", request_id);    print_nonnull("request_id2", request_id2);    print_nonnull("content_type", content_type);    if (properties->content_length) {        printf("content_length: %llu\n", properties->content_length);    }    print_nonnull("server", server);    print_nonnull("ETag", etag);    print_nonnull("expiration", expiration);    print_nonnull("website_redirect_location", website_redirect_location);    print_nonnull("version_id", version_id);    print_nonnull("allow_origin", allow_origin);    print_nonnull("allow_headers", allow_headers);    print_nonnull("max_age", max_age);    print_nonnull("allow_methods", allow_methods);    print_nonnull("expose_headers", expose_headers);    print_nonnull("storage_class", storage_class);    print_nonnull("server_side_encryption", server_side_encryption);    print_nonnull("kms_key_id", kms_key_id);    print_nonnull("customer_algorithm", customer_algorithm);    print_nonnull("customer_key_md5", customer_key_md5);    print_nonnull("bucket_location", bucket_location);    print_nonnull("obs_version", obs_version);    print_nonnull("restore", restore);    print_nonnull("obs_object_type", obs_object_type);    print_nonnull("obs_next_append_position", obs_next_append_position);    print_nonnull("obs_head_epid", obs_head_epid);    print_nonnull("reserved_indicator", reserved_indicator);    int i;    for (i = 0; i < properties->meta_data_count; i++) {        printf("x-obs-meta-%s: %s\n", properties->meta_data[i].name,            properties->meta_data[i].value);    }    return OBS_STATUS_OK;}int put_file_data_callback(int buffer_size, char *buffer,    void *callback_data){    put_file_object_callback_data *data =        (put_file_object_callback_data *)callback_data;    int ret = 0;    if (data->content_length) {        int toRead = ((data->content_length > (unsigned)buffer_size) ?            (unsigned)buffer_size : data->content_length);        ret = fread(buffer, 1, toRead, data->infile);    }    uint64_t originalContentLength = data->content_length;    data->content_length -= ret;    if (data->content_length) {        printf("%llu bytes remaining ", (unsigned long long)data->content_length);        printf("(%d%% complete) ...\n",            (int)(((originalContentLength - data->content_length) * 100) / originalContentLength));    }    return ret;}void put_file_complete_callback(obs_status status,    const obs_error_details *error,    void *callback_data){    put_file_object_callback_data *data = (put_file_object_callback_data *)callback_data;    data->ret_status = status;}uint64_t open_file_and_get_length(char *localfile, put_file_object_callback_data *data){    uint64_t content_length = 0;    const char *body = 0;    if (!content_length)    {        struct stat statbuf;        if (stat(localfile, &statbuf) == -1)        {            fprintf(stderr, "\nERROR: Failed to stat file %s: ",                localfile);            return 0;        }        content_length = statbuf.st_size;    }    if (!(data->infile = fopen(localfile, "rb")))    {        fprintf(stderr, "\nERROR: Failed to open input file %s: ",            localfile);        return 0;    }    data->content_length = content_length;    return content_length;}

#include "eSDKOBS.h"#include <stdio.h>#include <sys/stat.h>// 響應(yīng)回調(diào)函數(shù)，可以在這個回調(diào)中把properties的內(nèi)容記錄到callback_data(用戶自定義回調(diào)數(shù)據(jù))中obs_status response_properties_callback(const obs_response_properties *properties, void *callback_data);obs_status get_object_data_callback(int buffer_size, const char *buffer,    void *callback_data);void get_object_complete_callback(obs_status status,    const obs_error_details *error,    void *callback_data);typedef struct get_object_callback_data{    FILE *outfile;    obs_status ret_status;}get_object_callback_data;FILE * write_to_file(char *localfile);int main(){    // 以下示例展示如何在使用自定義域名時通過get_object函數(shù)下載對象到本地文件：    // 在程序入口調(diào)用obs_initialize方法來初始化網(wǎng)絡(luò)、內(nèi)存等全局資源。    obs_initialize(OBS_INIT_ALL);     obs_options options;    // 創(chuàng)建并初始化options，該參數(shù)包括訪問域名(host_name)、訪問密鑰（access_key_id和acces_key_secret）、桶名(bucket_name)、桶存儲類別(storage_class)等配置信息    init_obs_options(&options);    // host_name填寫桶所在的endpoint, 此處以華北-北京四為例，其他地區(qū)請按實(shí)際情況填寫。    options.bucket_options.host_name = "obs.cn-north-4.myhuaweicloud.com";    // 認(rèn)證用的ak和sk硬編碼到代碼中或者明文存儲都有很大的安全風(fēng)險，建議在配置文件或者環(huán)境變量中密文存放，使用時解密，確保安全；    // 本示例以ak和sk保存在環(huán)境變量中為例，運(yùn)行本示例前請先在本地環(huán)境中設(shè)置環(huán)境變量ACCESS_KEY_ID和SECRET_ACCESS_KEY。    options.bucket_options.access_key = getenv("ACCESS_KEY_ID");    options.bucket_options.secret_access_key = getenv("SECRET_ACCESS_KEY");    char * bucketName = "";    options.bucket_options.bucket_name = bucketName;    // 設(shè)置自定義域名    options.bucket_options.useCname = true;    options.bucket_options.host_name = "example.obs.test.cname.com";    // 設(shè)置對象下載到本地的文件名    char *file_name = "./example_get_file_test";    obs_object_info object_info;    // 設(shè)置下載的對象    memset(&object_info, 0, sizeof(obs_object_info));    object_info.key = "example_get_file_test";    object_info.version_id = NULL;    //根據(jù)業(yè)務(wù)需要設(shè)置存放下載對象數(shù)據(jù)的結(jié)構(gòu)    get_object_callback_data data;    data.ret_status = OBS_STATUS_BUTT;    data.outfile = write_to_file(file_name);    // 定義范圍下載參數(shù)    obs_get_conditions getcondition;    memset(&getcondition, 0, sizeof(obs_get_conditions));    init_get_properties(&getcondition);    // 下載起始位置，默認(rèn)0，從對象0字節(jié)位置開始下載    getcondition.start_byte = 0;    // 下載長度，默認(rèn)0，一直下載到對象尾    // getcondition.byte_count = 0;    // 定義下載的回調(diào)函數(shù)    obs_get_object_handler get_object_handler =    {        { &response_properties_callback,          &get_object_complete_callback},        &get_object_data_callback    };    get_object(&options, &object_info, &getcondition, 0, &get_object_handler, &data);    if (OBS_STATUS_OK == data.ret_status) {        printf("get object successfully. \n");    }    else    {        printf("get object failed(%s).\n", obs_get_status_name(data.ret_status));    }    fclose(data.outfile);    // 釋放分配的全局資源    obs_deinitialize();}// 響應(yīng)回調(diào)函數(shù)，可以在這個回調(diào)中把properties的內(nèi)容記錄到callback_data(用戶自定義回調(diào)數(shù)據(jù))中obs_status response_properties_callback(const obs_response_properties *properties, void *callback_data){    if (properties == NULL)    {        printf("error! obs_response_properties is null!");        if (callback_data != NULL)        {            obs_sever_callback_data *data = (obs_sever_callback_data *)callback_data;            printf("server_callback buf is %s, len is %llu",                data->buffer, data->buffer_len);            return OBS_STATUS_OK;        }        else {            printf("error! obs_sever_callback_data is null!");            return OBS_STATUS_OK;        }    }    // 打印響應(yīng)信息#define print_nonnull(name, field)                                 \    do {                                                           \        if (properties-> field) {                                  \            printf("%s: %s\n", name, properties->field);          \        }                                                          \    } while (0)    print_nonnull("request_id", request_id);    print_nonnull("request_id2", request_id2);    print_nonnull("content_type", content_type);    if (properties->content_length) {        printf("content_length: %llu\n", properties->content_length);    }    print_nonnull("server", server);    print_nonnull("ETag", etag);    print_nonnull("expiration", expiration);    print_nonnull("website_redirect_location", website_redirect_location);    print_nonnull("version_id", version_id);    print_nonnull("allow_origin", allow_origin);    print_nonnull("allow_headers", allow_headers);    print_nonnull("max_age", max_age);    print_nonnull("allow_methods", allow_methods);    print_nonnull("expose_headers", expose_headers);    print_nonnull("storage_class", storage_class);    print_nonnull("server_side_encryption", server_side_encryption);    print_nonnull("kms_key_id", kms_key_id);    print_nonnull("customer_algorithm", customer_algorithm);    print_nonnull("customer_key_md5", customer_key_md5);    print_nonnull("bucket_location", bucket_location);    print_nonnull("obs_version", obs_version);    print_nonnull("restore", restore);    print_nonnull("obs_object_type", obs_object_type);    print_nonnull("obs_next_append_position", obs_next_append_position);    print_nonnull("obs_head_epid", obs_head_epid);    print_nonnull("reserved_indicator", reserved_indicator);    int i;    for (i = 0; i < properties->meta_data_count; i++) {        printf("x-obs-meta-%s: %s\n", properties->meta_data[i].name,            properties->meta_data[i].value);    }    return OBS_STATUS_OK;}obs_status get_object_data_callback(int buffer_size, const char *buffer,    void *callback_data){    get_object_callback_data *data = (get_object_callback_data *)callback_data;    size_t wrote = fwrite(buffer, 1, buffer_size, data->outfile);    return ((wrote < (size_t)buffer_size) ?        OBS_STATUS_AbortedByCallback : OBS_STATUS_OK);}void get_object_complete_callback(obs_status status,    const obs_error_details *error,    void *callback_data){    get_object_callback_data *data = (get_object_callback_data *)callback_data;    data->ret_status = status;}FILE * write_to_file(char *localfile){    FILE *outfile = 0;    if (localfile) {        struct stat buf;        if (stat(localfile, &buf) == -1) {            outfile = fopen(localfile, "wb");        }        else {            outfile = fopen(localfile, "a");        }        if (!outfile) {            fprintf(stderr, "\nERROR: Failed to open output file %s: ",                localfile);            return outfile;        }    } else {        fprintf(stderr, "\nERROR: Failed to open output file, it's NULL, write object to stdout.",            localfile);        outfile = stdout;    }    return outfile;}