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115 lines
3.6 KiB
Go
115 lines
3.6 KiB
Go
// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved.
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// See LICENSE.txt for license information.
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package model
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import (
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"fmt"
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"net/http"
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)
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// UploadType defines the type of an upload.
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type UploadType string
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const (
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UploadTypeAttachment UploadType = "attachment"
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UploadTypeImport UploadType = "import"
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IncompleteUploadSuffix = ".tmp"
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)
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// UploadNoUserID is a "fake" user id used by the API layer when in local mode.
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const UploadNoUserID = "nouser"
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// UploadSession contains information used to keep track of a file upload.
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type UploadSession struct {
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// The unique identifier for the session.
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Id string `json:"id"`
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// The type of the upload.
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Type UploadType `json:"type"`
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// The timestamp of creation.
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CreateAt int64 `json:"create_at"`
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// The id of the user performing the upload.
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UserId string `json:"user_id"`
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// The id of the channel to upload to.
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ChannelId string `json:"channel_id,omitempty"`
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// The name of the file to upload.
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Filename string `json:"filename"`
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// The path where the file is stored.
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Path string `json:"-"`
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// The size of the file to upload.
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FileSize int64 `json:"file_size"`
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// The amount of received data in bytes. If equal to FileSize it means the
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// upload has finished.
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FileOffset int64 `json:"file_offset"`
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// Id of remote cluster if uploading for shared channel
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RemoteId string `json:"remote_id"`
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// Requested file id if uploading for shared channel
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ReqFileId string `json:"req_file_id"`
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}
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// PreSave is a utility function used to fill required information.
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func (us *UploadSession) PreSave() {
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if us.Id == "" {
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us.Id = NewId()
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}
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if us.CreateAt == 0 {
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us.CreateAt = GetMillis()
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}
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}
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// IsValid validates an UploadType. It returns an error in case of
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// failure.
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func (t UploadType) IsValid() error {
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switch t {
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case UploadTypeAttachment:
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return nil
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case UploadTypeImport:
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return nil
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default:
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}
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return fmt.Errorf("invalid UploadType %s", t)
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}
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// IsValid validates an UploadSession. It returns an error in case of
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// failure.
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func (us *UploadSession) IsValid() *AppError {
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if !IsValidId(us.Id) {
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return NewAppError("UploadSession.IsValid", "model.upload_session.is_valid.id.app_error", nil, "", http.StatusBadRequest)
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}
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if err := us.Type.IsValid(); err != nil {
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return NewAppError("UploadSession.IsValid", "model.upload_session.is_valid.type.app_error", nil, err.Error(), http.StatusBadRequest)
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}
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if !IsValidId(us.UserId) && us.UserId != UploadNoUserID {
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return NewAppError("UploadSession.IsValid", "model.upload_session.is_valid.user_id.app_error", nil, "id="+us.Id, http.StatusBadRequest)
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}
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if us.Type == UploadTypeAttachment && !IsValidId(us.ChannelId) {
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return NewAppError("UploadSession.IsValid", "model.upload_session.is_valid.channel_id.app_error", nil, "id="+us.Id, http.StatusBadRequest)
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}
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if us.CreateAt == 0 {
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return NewAppError("UploadSession.IsValid", "model.upload_session.is_valid.create_at.app_error", nil, "id="+us.Id, http.StatusBadRequest)
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}
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if us.Filename == "" {
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return NewAppError("UploadSession.IsValid", "model.upload_session.is_valid.filename.app_error", nil, "id="+us.Id, http.StatusBadRequest)
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}
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if us.FileSize <= 0 {
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return NewAppError("UploadSession.IsValid", "model.upload_session.is_valid.file_size.app_error", nil, "id="+us.Id, http.StatusBadRequest)
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}
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if us.FileOffset < 0 || us.FileOffset > us.FileSize {
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return NewAppError("UploadSession.IsValid", "model.upload_session.is_valid.file_offset.app_error", nil, "id="+us.Id, http.StatusBadRequest)
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}
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if us.Path == "" {
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return NewAppError("UploadSession.IsValid", "model.upload_session.is_valid.path.app_error", nil, "id="+us.Id, http.StatusBadRequest)
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}
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return nil
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}
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