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fb6f2a123c
* PLT-5860 Updated copyright date in about modal * PLT-5860 Updated copyright notice in JSX files * PLT-5860 Updated copyright notice in go files * Fixed misc copyright dates * Fixed component snapshots
282 lines
7.6 KiB
Go
282 lines
7.6 KiB
Go
// Copyright (c) 2017-present Mattermost, Inc. All Rights Reserved.
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// See License.txt for license information.
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package api4
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import (
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"net/http"
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"net/url"
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"strconv"
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l4g "github.com/alecthomas/log4go"
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"github.com/mattermost/platform/app"
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"github.com/mattermost/platform/model"
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"github.com/mattermost/platform/utils"
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)
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const (
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FILE_TEAM_ID = "noteam"
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)
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func InitFile() {
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l4g.Debug(utils.T("api.file.init.debug"))
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BaseRoutes.Files.Handle("", ApiSessionRequired(uploadFile)).Methods("POST")
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BaseRoutes.File.Handle("", ApiSessionRequired(getFile)).Methods("GET")
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BaseRoutes.File.Handle("/thumbnail", ApiSessionRequired(getFileThumbnail)).Methods("GET")
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BaseRoutes.File.Handle("/link", ApiSessionRequired(getFileLink)).Methods("GET")
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BaseRoutes.File.Handle("/preview", ApiSessionRequired(getFilePreview)).Methods("GET")
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BaseRoutes.File.Handle("/info", ApiSessionRequired(getFileInfo)).Methods("GET")
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BaseRoutes.PublicFile.Handle("", ApiHandler(getPublicFile)).Methods("GET")
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}
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func uploadFile(c *Context, w http.ResponseWriter, r *http.Request) {
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if r.ContentLength > *utils.Cfg.FileSettings.MaxFileSize {
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c.Err = model.NewLocAppError("uploadFile", "api.file.upload_file.too_large.app_error", nil, "")
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c.Err.StatusCode = http.StatusRequestEntityTooLarge
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return
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}
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if err := r.ParseMultipartForm(*utils.Cfg.FileSettings.MaxFileSize); err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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m := r.MultipartForm
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props := m.Value
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if len(props["channel_id"]) == 0 {
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c.SetInvalidParam("channel_id")
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return
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}
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channelId := props["channel_id"][0]
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if len(channelId) == 0 {
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c.SetInvalidParam("channel_id")
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return
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}
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if !app.SessionHasPermissionToChannel(c.Session, channelId, model.PERMISSION_UPLOAD_FILE) {
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c.SetPermissionError(model.PERMISSION_UPLOAD_FILE)
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return
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}
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resStruct, err := app.UploadFiles(FILE_TEAM_ID, channelId, c.Session.UserId, m.File["files"], m.Value["client_ids"])
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if err != nil {
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c.Err = err
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return
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}
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w.WriteHeader(http.StatusCreated)
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w.Write([]byte(resStruct.ToJson()))
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}
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func getFile(c *Context, w http.ResponseWriter, r *http.Request) {
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c.RequireFileId()
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if c.Err != nil {
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return
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}
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info, err := app.GetFileInfo(c.Params.FileId)
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if err != nil {
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c.Err = err
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return
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}
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if info.CreatorId != c.Session.UserId && !app.SessionHasPermissionToChannelByPost(c.Session, info.PostId, model.PERMISSION_READ_CHANNEL) {
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c.SetPermissionError(model.PERMISSION_READ_CHANNEL)
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return
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}
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if data, err := app.ReadFile(info.Path); err != nil {
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c.Err = err
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c.Err.StatusCode = http.StatusNotFound
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} else if err := writeFileResponse(info.Name, info.MimeType, data, w, r); err != nil {
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c.Err = err
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return
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}
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}
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func getFileThumbnail(c *Context, w http.ResponseWriter, r *http.Request) {
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c.RequireFileId()
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if c.Err != nil {
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return
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}
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info, err := app.GetFileInfo(c.Params.FileId)
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if err != nil {
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c.Err = err
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return
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}
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if info.CreatorId != c.Session.UserId && !app.SessionHasPermissionToChannelByPost(c.Session, info.PostId, model.PERMISSION_READ_CHANNEL) {
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c.SetPermissionError(model.PERMISSION_READ_CHANNEL)
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return
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}
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if info.ThumbnailPath == "" {
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c.Err = model.NewLocAppError("getFileThumbnail", "api.file.get_file_thumbnail.no_thumbnail.app_error", nil, "file_id="+info.Id)
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c.Err.StatusCode = http.StatusBadRequest
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return
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}
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if data, err := app.ReadFile(info.ThumbnailPath); err != nil {
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c.Err = err
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c.Err.StatusCode = http.StatusNotFound
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} else if err := writeFileResponse(info.Name, info.MimeType, data, w, r); err != nil {
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c.Err = err
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return
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}
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}
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func getFileLink(c *Context, w http.ResponseWriter, r *http.Request) {
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c.RequireFileId()
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if c.Err != nil {
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return
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}
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if !utils.Cfg.FileSettings.EnablePublicLink {
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c.Err = model.NewLocAppError("getPublicLink", "api.file.get_public_link.disabled.app_error", nil, "")
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c.Err.StatusCode = http.StatusNotImplemented
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return
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}
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info, err := app.GetFileInfo(c.Params.FileId)
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if err != nil {
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c.Err = err
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return
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}
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if info.CreatorId != c.Session.UserId && !app.SessionHasPermissionToChannelByPost(c.Session, info.PostId, model.PERMISSION_READ_CHANNEL) {
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c.SetPermissionError(model.PERMISSION_READ_CHANNEL)
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return
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}
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if len(info.PostId) == 0 {
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c.Err = model.NewLocAppError("getPublicLink", "api.file.get_public_link.no_post.app_error", nil, "file_id="+info.Id)
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c.Err.StatusCode = http.StatusBadRequest
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return
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}
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resp := make(map[string]string)
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resp["link"] = app.GeneratePublicLink(c.GetSiteURLHeader(), info)
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w.Write([]byte(model.MapToJson(resp)))
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}
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func getFilePreview(c *Context, w http.ResponseWriter, r *http.Request) {
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c.RequireFileId()
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if c.Err != nil {
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return
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}
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info, err := app.GetFileInfo(c.Params.FileId)
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if err != nil {
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c.Err = err
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return
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}
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if info.CreatorId != c.Session.UserId && !app.SessionHasPermissionToChannelByPost(c.Session, info.PostId, model.PERMISSION_READ_CHANNEL) {
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c.SetPermissionError(model.PERMISSION_READ_CHANNEL)
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return
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}
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if info.PreviewPath == "" {
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c.Err = model.NewLocAppError("getFilePreview", "api.file.get_file_preview.no_preview.app_error", nil, "file_id="+info.Id)
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c.Err.StatusCode = http.StatusBadRequest
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return
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}
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if data, err := app.ReadFile(info.PreviewPath); err != nil {
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c.Err = err
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c.Err.StatusCode = http.StatusNotFound
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} else if err := writeFileResponse(info.Name, info.MimeType, data, w, r); err != nil {
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c.Err = err
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return
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}
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}
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func getFileInfo(c *Context, w http.ResponseWriter, r *http.Request) {
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c.RequireFileId()
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if c.Err != nil {
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return
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}
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info, err := app.GetFileInfo(c.Params.FileId)
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if err != nil {
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c.Err = err
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return
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}
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if info.CreatorId != c.Session.UserId && !app.SessionHasPermissionToChannelByPost(c.Session, info.PostId, model.PERMISSION_READ_CHANNEL) {
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c.SetPermissionError(model.PERMISSION_READ_CHANNEL)
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return
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}
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w.Header().Set("Cache-Control", "max-age=2592000, public")
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w.Write([]byte(info.ToJson()))
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}
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func getPublicFile(c *Context, w http.ResponseWriter, r *http.Request) {
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c.RequireFileId()
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if c.Err != nil {
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return
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}
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if !utils.Cfg.FileSettings.EnablePublicLink {
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c.Err = model.NewLocAppError("getPublicFile", "api.file.get_public_link.disabled.app_error", nil, "")
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c.Err.StatusCode = http.StatusNotImplemented
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return
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}
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info, err := app.GetFileInfo(c.Params.FileId)
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if err != nil {
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c.Err = err
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return
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}
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hash := r.URL.Query().Get("h")
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if len(hash) == 0 {
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c.Err = model.NewLocAppError("getPublicFile", "api.file.get_file.public_invalid.app_error", nil, "")
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c.Err.StatusCode = http.StatusBadRequest
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return
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}
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if hash != app.GeneratePublicLinkHash(info.Id, *utils.Cfg.FileSettings.PublicLinkSalt) {
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c.Err = model.NewLocAppError("getPublicFile", "api.file.get_file.public_invalid.app_error", nil, "")
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c.Err.StatusCode = http.StatusBadRequest
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return
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}
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if data, err := app.ReadFile(info.Path); err != nil {
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c.Err = err
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c.Err.StatusCode = http.StatusNotFound
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} else if err := writeFileResponse(info.Name, info.MimeType, data, w, r); err != nil {
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c.Err = err
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return
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}
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}
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func writeFileResponse(filename string, contentType string, bytes []byte, w http.ResponseWriter, r *http.Request) *model.AppError {
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w.Header().Set("Cache-Control", "max-age=2592000, public")
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w.Header().Set("Content-Length", strconv.Itoa(len(bytes)))
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if contentType != "" {
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w.Header().Set("Content-Type", contentType)
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} else {
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w.Header().Del("Content-Type") // Content-Type will be set automatically by the http writer
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}
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w.Header().Set("Content-Disposition", "attachment;filename=\""+filename+"\"; filename*=UTF-8''"+url.QueryEscape(filename))
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// prevent file links from being embedded in iframes
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w.Header().Set("X-Frame-Options", "DENY")
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w.Header().Set("Content-Security-Policy", "Frame-ancestors 'none'")
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w.Write(bytes)
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return nil
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}
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