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post.go
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post.go
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// Copyright (c) 2017-present Mattermost, Inc. All Rights Reserved.
// See License.txt for license information.
package api4
import (
"net/http"
"strconv"
l4g "github.com/alecthomas/log4go"
"github.com/mattermost/platform/app"
"github.com/mattermost/platform/model"
"github.com/mattermost/platform/utils"
)
func InitPost() {
l4g.Debug(utils.T("api.post.init.debug"))
BaseRoutes.Posts.Handle("", ApiSessionRequired(createPost)).Methods("POST")
BaseRoutes.Post.Handle("", ApiSessionRequired(getPost)).Methods("GET")
BaseRoutes.Post.Handle("", ApiSessionRequired(deletePost)).Methods("DELETE")
BaseRoutes.Post.Handle("/thread", ApiSessionRequired(getPostThread)).Methods("GET")
BaseRoutes.Post.Handle("/files/info", ApiSessionRequired(getFileInfosForPost)).Methods("GET")
BaseRoutes.PostsForChannel.Handle("", ApiSessionRequired(getPostsForChannel)).Methods("GET")
BaseRoutes.PostsForUser.Handle("/flagged", ApiSessionRequired(getFlaggedPostsForUser)).Methods("GET")
BaseRoutes.Team.Handle("/posts/search", ApiSessionRequired(searchPosts)).Methods("POST")
BaseRoutes.Post.Handle("", ApiSessionRequired(updatePost)).Methods("PUT")
BaseRoutes.Post.Handle("/patch", ApiSessionRequired(patchPost)).Methods("PUT")
BaseRoutes.Post.Handle("/pin", ApiSessionRequired(pinPost)).Methods("POST")
BaseRoutes.Post.Handle("/unpin", ApiSessionRequired(unpinPost)).Methods("POST")
}
func createPost(c *Context, w http.ResponseWriter, r *http.Request) {
post := model.PostFromJson(r.Body)
if post == nil {
c.SetInvalidParam("post")
return
}
post.UserId = c.Session.UserId
if !app.SessionHasPermissionToChannel(c.Session, post.ChannelId, model.PERMISSION_CREATE_POST) {
c.SetPermissionError(model.PERMISSION_CREATE_POST)
return
}
if post.CreateAt != 0 && !app.SessionHasPermissionTo(c.Session, model.PERMISSION_MANAGE_SYSTEM) {
post.CreateAt = 0
}
rp, err := app.CreatePostAsUser(post)
if err != nil {
c.Err = err
return
}
app.SetStatusOnline(c.Session.UserId, c.Session.Id, false)
w.WriteHeader(http.StatusCreated)
w.Write([]byte(rp.ToJson()))
}
func getPostsForChannel(c *Context, w http.ResponseWriter, r *http.Request) {
c.RequireChannelId()
if c.Err != nil {
return
}
afterPost := r.URL.Query().Get("after")
beforePost := r.URL.Query().Get("before")
sinceString := r.URL.Query().Get("since")
var since int64
var parseError error
if len(sinceString) > 0 {
since, parseError = strconv.ParseInt(sinceString, 10, 64)
if parseError != nil {
c.SetInvalidParam("since")
return
}
}
if !app.SessionHasPermissionToChannel(c.Session, c.Params.ChannelId, model.PERMISSION_READ_CHANNEL) {
c.SetPermissionError(model.PERMISSION_READ_CHANNEL)
return
}
var list *model.PostList
var err *model.AppError
etag := ""
if since > 0 {
list, err = app.GetPostsSince(c.Params.ChannelId, since)
} else if len(afterPost) > 0 {
etag = app.GetPostsEtag(c.Params.ChannelId)
if HandleEtag(etag, "Get Posts After", w, r) {
return
}
list, err = app.GetPostsAfterPost(c.Params.ChannelId, afterPost, c.Params.Page, c.Params.PerPage)
} else if len(beforePost) > 0 {
etag = app.GetPostsEtag(c.Params.ChannelId)
if HandleEtag(etag, "Get Posts Before", w, r) {
return
}
list, err = app.GetPostsBeforePost(c.Params.ChannelId, beforePost, c.Params.Page, c.Params.PerPage)
} else {
etag = app.GetPostsEtag(c.Params.ChannelId)
if HandleEtag(etag, "Get Posts", w, r) {
return
}
list, err = app.GetPostsPage(c.Params.ChannelId, c.Params.Page, c.Params.PerPage)
}
if err != nil {
c.Err = err
return
}
if len(etag) > 0 {
w.Header().Set(model.HEADER_ETAG_SERVER, etag)
}
w.Write([]byte(list.ToJson()))
}
func getFlaggedPostsForUser(c *Context, w http.ResponseWriter, r *http.Request) {
c.RequireUserId()
if c.Err != nil {
return
}
if !app.SessionHasPermissionToUser(c.Session, c.Params.UserId) {
c.SetPermissionError(model.PERMISSION_EDIT_OTHER_USERS)
return
}
channelId := r.URL.Query().Get("channel_id")
teamId := r.URL.Query().Get("team_id")
var posts *model.PostList
var err *model.AppError
if len(channelId) > 0 {
posts, err = app.GetFlaggedPostsForChannel(c.Params.UserId, channelId, c.Params.Page, c.Params.PerPage)
} else if len(teamId) > 0 {
posts, err = app.GetFlaggedPostsForTeam(c.Params.UserId, teamId, c.Params.Page, c.Params.PerPage)
} else {
posts, err = app.GetFlaggedPosts(c.Params.UserId, c.Params.Page, c.Params.PerPage)
}
if err != nil {
c.Err = err
return
}
w.Write([]byte(posts.ToJson()))
}
func getPost(c *Context, w http.ResponseWriter, r *http.Request) {
c.RequirePostId()
if c.Err != nil {
return
}
var post *model.Post
var err *model.AppError
if post, err = app.GetSinglePost(c.Params.PostId); err != nil {
c.Err = err
return
}
var channel *model.Channel
if channel, err = app.GetChannel(post.ChannelId); err != nil {
c.Err = err
return
}
if !app.SessionHasPermissionToChannel(c.Session, channel.Id, model.PERMISSION_READ_CHANNEL) {
if channel.Type == model.CHANNEL_OPEN {
if !app.SessionHasPermissionToTeam(c.Session, channel.TeamId, model.PERMISSION_READ_PUBLIC_CHANNEL) {
c.SetPermissionError(model.PERMISSION_READ_PUBLIC_CHANNEL)
return
}
} else {
c.SetPermissionError(model.PERMISSION_READ_CHANNEL)
return
}
}
if HandleEtag(post.Etag(), "Get Post", w, r) {
return
} else {
w.Header().Set(model.HEADER_ETAG_SERVER, post.Etag())
w.Write([]byte(post.ToJson()))
}
}
func deletePost(c *Context, w http.ResponseWriter, r *http.Request) {
c.RequirePostId()
if c.Err != nil {
return
}
if !app.SessionHasPermissionToPost(c.Session, c.Params.PostId, model.PERMISSION_DELETE_OTHERS_POSTS) {
c.SetPermissionError(model.PERMISSION_DELETE_OTHERS_POSTS)
return
}
if _, err := app.DeletePost(c.Params.PostId); err != nil {
c.Err = err
return
}
ReturnStatusOK(w)
}
func getPostThread(c *Context, w http.ResponseWriter, r *http.Request) {
c.RequirePostId()
if c.Err != nil {
return
}
var list *model.PostList
var err *model.AppError
if list, err = app.GetPostThread(c.Params.PostId); err != nil {
c.Err = err
return
}
var post *model.Post
if val, ok := list.Posts[c.Params.PostId]; ok {
post = val
} else {
c.SetInvalidUrlParam("post_id")
return
}
var channel *model.Channel
if channel, err = app.GetChannel(post.ChannelId); err != nil {
c.Err = err
return
}
if !app.SessionHasPermissionToChannel(c.Session, channel.Id, model.PERMISSION_READ_CHANNEL) {
if channel.Type == model.CHANNEL_OPEN {
if !app.SessionHasPermissionToTeam(c.Session, channel.TeamId, model.PERMISSION_READ_PUBLIC_CHANNEL) {
c.SetPermissionError(model.PERMISSION_READ_PUBLIC_CHANNEL)
return
}
} else {
c.SetPermissionError(model.PERMISSION_READ_CHANNEL)
return
}
}
if HandleEtag(list.Etag(), "Get Post Thread", w, r) {
return
} else {
w.Header().Set(model.HEADER_ETAG_SERVER, list.Etag())
w.Write([]byte(list.ToJson()))
}
}
func searchPosts(c *Context, w http.ResponseWriter, r *http.Request) {
c.RequireTeamId()
if c.Err != nil {
return
}
if !app.SessionHasPermissionToTeam(c.Session, c.Params.TeamId, model.PERMISSION_VIEW_TEAM) {
c.SetPermissionError(model.PERMISSION_VIEW_TEAM)
return
}
props := model.StringInterfaceFromJson(r.Body)
terms, ok := props["terms"].(string)
if !ok || len(terms) == 0 {
c.SetInvalidParam("terms")
return
}
isOrSearch, _ := props["is_or_search"].(bool)
posts, err := app.SearchPostsInTeam(terms, c.Session.UserId, c.Params.TeamId, isOrSearch)
if err != nil {
c.Err = err
return
}
w.Header().Set("Cache-Control", "no-cache, no-store, must-revalidate")
w.Write([]byte(posts.ToJson()))
}
func updatePost(c *Context, w http.ResponseWriter, r *http.Request) {
c.RequirePostId()
if c.Err != nil {
return
}
post := model.PostFromJson(r.Body)
if post == nil {
c.SetInvalidParam("post")
return
}
if !app.SessionHasPermissionToChannelByPost(c.Session, c.Params.PostId, model.PERMISSION_EDIT_POST) {
c.SetPermissionError(model.PERMISSION_EDIT_POST)
return
}
if !app.SessionHasPermissionToPost(c.Session, c.Params.PostId, model.PERMISSION_EDIT_OTHERS_POSTS) {
c.SetPermissionError(model.PERMISSION_EDIT_OTHERS_POSTS)
return
}
post.Id = c.Params.PostId
rpost, err := app.UpdatePost(post, false)
if err != nil {
c.Err = err
return
}
w.Write([]byte(rpost.ToJson()))
}
func patchPost(c *Context, w http.ResponseWriter, r *http.Request) {
c.RequirePostId()
if c.Err != nil {
return
}
post := model.PostPatchFromJson(r.Body)
if post == nil {
c.SetInvalidParam("post")
return
}
if !app.SessionHasPermissionToChannelByPost(c.Session, c.Params.PostId, model.PERMISSION_EDIT_POST) {
c.SetPermissionError(model.PERMISSION_EDIT_POST)
return
}
if !app.SessionHasPermissionToPost(c.Session, c.Params.PostId, model.PERMISSION_EDIT_OTHERS_POSTS) {
c.SetPermissionError(model.PERMISSION_EDIT_OTHERS_POSTS)
return
}
patchedPost, err := app.PatchPost(c.Params.PostId, post)
if err != nil {
c.Err = err
return
}
w.Write([]byte(patchedPost.ToJson()))
}
func saveIsPinnedPost(c *Context, w http.ResponseWriter, r *http.Request, isPinned bool) {
c.RequirePostId()
if c.Err != nil {
return
}
if !app.SessionHasPermissionToChannelByPost(c.Session, c.Params.PostId, model.PERMISSION_READ_CHANNEL) {
c.SetPermissionError(model.PERMISSION_READ_CHANNEL)
return
}
patch := &model.PostPatch{}
patch.IsPinned = new(bool)
*patch.IsPinned = isPinned
_, err := app.PatchPost(c.Params.PostId, patch)
if err != nil {
c.Err = err
return
}
ReturnStatusOK(w)
}
func pinPost(c *Context, w http.ResponseWriter, r *http.Request) {
saveIsPinnedPost(c, w, r, true)
}
func unpinPost(c *Context, w http.ResponseWriter, r *http.Request) {
saveIsPinnedPost(c, w, r, false)
}
func getFileInfosForPost(c *Context, w http.ResponseWriter, r *http.Request) {
c.RequirePostId()
if c.Err != nil {
return
}
if !app.SessionHasPermissionToChannelByPost(c.Session, c.Params.PostId, model.PERMISSION_READ_CHANNEL) {
c.SetPermissionError(model.PERMISSION_READ_CHANNEL)
return
}
if infos, err := app.GetFileInfosForPost(c.Params.PostId, false); err != nil {
c.Err = err
return
} else if HandleEtag(model.GetEtagForFileInfos(infos), "Get File Infos For Post", w, r) {
return
} else {
w.Header().Set("Cache-Control", "max-age=2592000, public")
w.Header().Set(model.HEADER_ETAG_SERVER, model.GetEtagForFileInfos(infos))
w.Write([]byte(model.FileInfosToJson(infos)))
}
}