陈明泉 / vipTalk

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************************************************************************/
/*************************************************
  File name     : mtc_fs.h
  Module        : rich session enabler
  Author        : bob.liu
  Created on    : 2015-06-17
  Description   :
      Data structure and function declare required by mtc conference 

  Modify History:
  1. Date:        Author:         Modification:
*************************************************/
#ifndef _MTC_FS_H__
#define _MTC_FS_H__

/**
 * @file
 * @brief MTC File Storage Interfaces
 *
 * This file includes file storage interface function.
 */
#ifdef __cplusplus
extern "C" {
#endif

/** @brief File storage status code. */
typedef enum EN_MTC_FS_STATUS_CODE
{
    EN_MTC_FS_STATUS_UNKNOWN,
    EN_MTC_FS_STATUS_INVALID_STATE,
    EN_MTC_FS_STATUS_NO_AGENT,
    EN_MTC_FS_STATUS_INVALID_PARAMETER,
    EN_MTC_FS_STATUS_OPEN_FILE,
    EN_MTC_FS_STATUS_CONNECT_FAIL,
    EN_MTC_FS_STATUS_CANCELED,
    EN_MTC_FS_STATUS_DISCONNECTED,
    EN_MTC_FS_STATUS_RENAME,
} EN_MTC_FS_STATUS_CODE;

/**
 * @defgroup MtcFsKey MTC notification key of file storage event.
 * @{
 */

/**
 * @brief A key whose value is a number object in JSON format reflecting 
 * ID of uploading or downloading session.
 */
#define MtcFsSessIdKey                  "MtcFsSessIdKey"

/**
 * @brief A key whose value is a number object in JSON format reflecting 
 * the status code @ref EN_MTC_FS_STATUS_CODE.
 */
#define MtcFsStatusCodeKey              "MtcFsStatusCodeKey"

/**
 * @brief A key whose value is a string object in JSON format reflecting 
 * fail description.
 */
#define MtcFsFailDescriptionKey         "MtcFsFailDescriptionKey"

/**
 * @brief A key whose value is a number object in JSON format reflecting 
 * the progress of uploading or downloading in percentage.
 */
#define MtcFsProgressKey                "MtcFsProgressKey"

/**
 * @brief A key whose value is a string object in JSON format reflecting 
 * the link URI for others downloading.
 */
#define MtcFsLinkUriKey                 "MtcFsLinkUriKey"
/**
 * @}
 */

/**
 * @defgroup MtcFsNotification MTC notification of file storage event.
 * @{
 */

/**
 * @brief Posted during the transmission.
 *
 * The pcInfo of this notification contains @ref MtcFsProgressKey.
 */
#define MtcFsTransmitingNotification    "MtcFsTransmitingNotification"

/**
 * @brief Posted when file uploading is done successfully.
 *
 * The pcInfo of this notification contains @ref MtcFsSessIdKey.
 */
#define MtcFsUploadOkNotification       "MtcFsUploadOkNotification"

/**
 * @brief Posted when file uploading is failed.
 *
 * The pcInfo of this notification contains @ref MtcFsSessIdKey,
 * @ref MtcFsStatusCodeKey
 */
#define MtcFsUploadDidFailNotification  "MtcFsUploadDidFailNotification"

/**
 * @brief Posted when file downloading is done successfully.
 *
 * The pcInfo of this notification contains @ref MtcFsSessIdKey.
 */
#define MtcFsDownloadOkNotification     "MtcFsDownloadOkNotification"

/**
 * @brief Posted when file downloading is failed.
 *
 * The pcInfo of this notification contains @ref MtcFsSessIdKey,
 * @ref MtcFsStatusCodeKey
 */
#define MtcFsDownloadDidFailNotification "MtcFsDownloadDidFailNotification"

/**
 * @brief Posted when share link created successfully.
 *
 * The pcInfo of this notification contains @ref MtcFsLinkUriKey.
 */
#define MtcFsShareOkNotification        "MtcFsShareOkNotification"

/**
 * @brief Posted when failed to craete link.
 *
 * The pcInfo of this notification is ZNULL.
 */
#define MtcFsShareDidFailNotification   "MtcFsShareDidFailNotification"
/**
 * @}
 */

/**
 * @brief Upload file to specific path on server.
 *
 * The transmiting progress will be notified by @ref MtcFsTransmitingNotification.
 * When the file has been uploaded successfully, @ref MtcFsUploadOkNotification will
 * be reported.
 * When fail to upload the file, @ref MtcFsUploadDidFailNotification will be reported.
 * 
 * @param  zCookie       User defined value.
 * @param  pcStoragePath Path on server, only one level directory.
 * @param  pcFilePath    The path of file to upload.
 * @return               The session ID value. ZINVALIDID when failed.
 */
MTCFUNC ZUINT Mtc_FsUpload(ZCOOKIE zCookie, ZCONST ZCHAR *pcStoragePath,
    ZCONST ZCHAR *pcFilePath);

/**
 * @brief Upload file to specific path on server.
 *
 * The transmiting progress will be notified by @ref MtcFsTransmitingNotification.
 * When the file has been uploaded successfully, @ref MtcFsUploadOkNotification will
 * be reported.
 * When fail to upload the file, @ref MtcFsUploadDidFailNotification will be reported.
 * 
 * @param  zCookie       User defined value.
 * @param  pcStoragePath Path on server, only one level directory.
 * @param  pcFilePath    The path of file to upload.
 * @param  iExpireSecond Expiration second of the file.
 * @return               The session ID value. ZINVALIDID when failed.
 */
MTCFUNC ZUINT Mtc_FsUpload2(ZCOOKIE zCookie, ZCONST ZCHAR *pcStoragePath,
    ZCONST ZCHAR *pcFilePath, ZINT iExpireSecond);

/**
 * @brief Download file from server.
 *
 * The transmiting progress will be notified by @ref MtcFsTransmitingNotification.
 * When the file has been downloaded successfully, @ref MtcFsDownloadOkNotification will
 * be reported.
 * When failed to download the file, @ref MtcFsDownloadDidFailNotification will be reported.
 * 
 * @param  zCookie       User defined value.
 * @param  pcUri         File URI, which can be path on server or link shared.
 * @param  pcFilePath    The path of file to store the content.
 * @return               The session ID value. ZINVALIDID when failed.
 */
MTCFUNC ZUINT Mtc_FsDownload(ZCOOKIE zCookie, ZCONST ZCHAR *pcUri,
    ZCONST ZCHAR *pcFilePath);

/**
 * @brief Cancel upload or download session.
 * @param  iSessId The session ID.
 * @return         ZOK when succeed, ZFAILED when failed.
 */
MTCFUNC ZINT Mtc_FsCancel(ZUINT iSessId);

/**
 * @brief Create a share link for other user to download.
 * 
 * When the link has been created successfully, @ref MtcFsShareOkNotification will
 * be reported.
 * When failed to create the link, @ref MtcFsShareDidFailNotification will be reported.
 * 
 * @param  zCookie       User defined value.
 * @param  pcStoragePath Path of file on server.
 * @retval ZOK       The request has been sent successfully.
 * @retval ZFAILED   Failed to send the request.
 */
MTCFUNC ZINT Mtc_FsShare(ZCOOKIE zCookie, ZCONST ZCHAR *pcStoragePath);

#ifdef __cplusplus
}
#endif

#endif /* _MTC_FS_H__ */