// DailyEmail sends a daily email to subscribed users with top stories - change this to WeeklyEmail
// before putting it into production
// We should probably only do this for kenny at present
func DailyEmail(context schedule.Context) {
context.Log("Sending daily email")
// First fetch our stories over 5 points
q := stories.Popular()
// Must be within 7 days
q.Where("created_at > current_timestamp - interval '7 day'")
// Order by rank
q.Order("rank desc, points desc, id desc")
// Don't fetch stories that have already been mailed
q.Where("newsletter_at IS NULL")
// Fetch the stories
topStories, err := stories.FindAll(q)
if err != nil {
context.Logf("#error getting top story tweet %s", err)
return
}
if len(topStories) == 0 {
context.Logf("#warn no stories found for newsletter")
return
}
// Now fetch our recipient (initially just Kenny as this is in testing)
recipient, err := users.Find(1)
if err != nil {
context.Logf("#error getting email reciipents %s", err)
return
}
var jobStories []*stories.Story
// Email recipients the stories in question - we should perhaps save in db so that we can
// have an issue number and always reproduce the digests?
mailContext := map[string]interface{}{
"stories": topStories,
"jobs": jobStories,
}
err = mail.SendOne(recipient.Email, "Go News Digest", "users/views/mail/digest.html.got", mailContext)
if err != nil {
context.Logf("#error sending email %s", err)
return
}
// Record that these stories have been mailed in db
params := map[string]string{"newsletter_at": query.TimeString(time.Now().UTC())}
err = q.Order("").UpdateAll(params)
if err != nil {
context.Logf("#error updating top story newsletter_at %s", err)
return
}
}
// HandleUpdateShow serves a get request at /users/1/update (show form to update)
func HandleUpdateShow(context router.Context) error {
// Setup context for template
view := view.New(context)
user, err := users.Find(context.ParamInt("id"))
if err != nil {
context.Logf("#error Error finding user %s", err)
return router.NotFoundError(err)
}
// Authorise
err = authorise.Resource(context, user)
if err != nil {
return router.NotAuthorizedError(err)
}
view.AddKey("user", user)
return view.Render()
}
// HandleDestroy responds to POST /users/1/destroy
func HandleDestroy(context router.Context) error {
// Set the user on the context for checking
user, err := users.Find(context.ParamInt("id"))
if err != nil {
return router.NotFoundError(err)
}
// Authorise
err = authorise.ResourceAndAuthenticity(context, user)
if err != nil {
return router.NotAuthorizedError(err)
}
// Destroy the user
user.Destroy()
// Redirect to users root
return router.Redirect(context, user.URLIndex())
}
// CurrentUser returns the saved user (or an empty anon user) for the current session cookie
// Strictly speaking this should be authenticate.User
func CurrentUser(context router.Context) *users.User {
// First check if the user has already been set on context, if so return it
if context.Get("current_user") != nil {
return context.Get("current_user").(*users.User)
}
// Start with an anon user by default (role 0, id 0)
user := &users.User{}
// Build the session from the secure cookie, or create a new one
session, err := auth.Session(context.Writer(), context.Request())
if err != nil {
context.Logf("#error problem retrieving session")
return user
}
// Fetch the current user record if we have one recorded in the session
var id int64
ids := session.Get(auth.SessionUserKey)
if len(ids) > 0 {
id, err = strconv.ParseInt(ids, 10, 64)
if err != nil {
context.Logf("#error Error decoding session user key:%s\n", err)
return user
}
}
if id != 0 {
u, err := users.Find(id)
if err != nil {
context.Logf("#info User not found from session id:%d\n", id)
return user
}
user = u
}
return user
}
// addStoryVote adjusts the story points, and adds a vote record for this user
func addStoryVote(story *stories.Story, user *users.User, ip string, delta int64) error {
if story.Points < -5 && delta < 0 {
return router.InternalError(nil, "Vote Failed", "Story is already hidden")
}
// Update the story points by delta
err := story.Update(map[string]string{"points": fmt.Sprintf("%d", story.Points+delta)})
if err != nil {
return router.InternalError(err, "Vote Failed", "Sorry your adjust vote points")
}
// Update the *story* posting user points by delta
storyUser, err := users.Find(story.UserId)
if err != nil {
return err
}
err = adjustUserPoints(storyUser, delta)
if err != nil {
return err
}
return recordStoryVote(story, user, ip, delta)
}
// HandleShow serve a get request at /users/1
func HandleShow(context router.Context) error {
// No auth - this is public
// Find the user
user, err := users.Find(context.ParamInt("id"))
if err != nil {
context.Logf("#error parsing user id: %s", err)
return router.NotFoundError(err)
}
// Get the user comments
q := comments.Where("user_id=?", user.Id).Limit(10).Order("created_at desc")
userComments, err := comments.FindAll(q)
if err != nil {
return router.InternalError(err)
}
// Get the user stories
q = stories.Where("user_id=?", user.Id).Limit(50).Order("created_at desc")
userStories, err := stories.FindAll(q)
if err != nil {
return router.InternalError(err)
}
// Render the Template
view := view.New(context)
view.AddKey("user", user)
view.AddKey("comments", userComments)
view.AddKey("stories", userStories)
view.AddKey("meta_title", user.Name)
view.AddKey("meta_desc", user.Name)
return view.Render()
}
// HandleUpdate or PUT /users/1/update
func HandleUpdate(context router.Context) error {
// Find the user
id := context.ParamInt("id")
user, err := users.Find(id)
if err != nil {
context.Logf("#error Error finding user %s", err)
return router.NotFoundError(err)
}
// Authorise
err = authorise.ResourceAndAuthenticity(context, user)
if err != nil {
return router.NotAuthorizedError(err)
}
// Get the params
params, err := context.Params()
if err != nil {
return router.InternalError(err)
}
// Clean params according to role
accepted := users.AllowedParams()
if authorise.CurrentUser(context).Admin() {
accepted = users.AllowedParamsAdmin()
}
allowedParams := params.Clean(accepted)
err = user.Update(allowedParams)
if err != nil {
return router.InternalError(err)
}
// Redirect to user
return router.Redirect(context, user.URLShow())
}
// addCommentVote adjusts the comment points, and adds a vote record for this user
func addCommentVote(comment *comments.Comment, user *users.User, ip string, delta int64) error {
if comment.Points < -5 && delta < 0 {
return router.InternalError(nil, "Vote Failed", "Comment is already hidden")
}
// Update the comment points by delta
err := comment.Update(map[string]string{"points": fmt.Sprintf("%d", comment.Points+delta)})
if err != nil {
return router.InternalError(err, "Vote Failed", "Sorry your adjust vote points")
}
// Update the *comment* user points by delta
commentUser, err := users.Find(comment.UserId)
if err != nil {
return err
}
err = adjustUserPoints(commentUser, delta)
if err != nil {
return err
}
return recordCommentVote(comment, user, ip, delta)
}
// HandleCreate handles POST /users/create from the register page
func HandleCreate(context router.Context) error {
// Check csrf token
err := authorise.AuthenticityToken(context)
if err != nil {
return router.NotAuthorizedError(err)
}
// Setup context
params, err := context.Params()
if err != nil {
return router.InternalError(err)
}
// Check for email duplicates
email := params.Get("email")
if len(email) > 0 {
if len(email) < 3 || !strings.Contains(email, "@") {
return router.InternalError(err, "Invalid email", "Please just miss out the email field, or use a valid email.")
}
count, err := users.Query().Where("email=?", email).Count()
if err != nil {
return router.InternalError(err)
}
if count > 0 {
return router.NotAuthorizedError(err, "User already exists", "Sorry, a user already exists with that email.")
}
}
// Check for invalid or duplicate names
name := params.Get("name")
if len(name) < 2 {
return router.InternalError(err, "Name too short", "Please choose a username longer than 2 characters")
}
count, err := users.Query().Where("name=?", name).Count()
if err != nil {
return router.InternalError(err)
}
if count > 0 {
return router.NotAuthorizedError(err, "User already exists", "Sorry, a user already exists with that name, please choose another.")
}
// Set some defaults for the new user
params.SetInt("status", status.Published)
params.SetInt("role", users.RoleReader)
params.SetInt("points", 1)
// Now try to create the user - NB AllowedParamsAdmin, we allow points etc on create as we explicitly set them
id, err := users.Create(params.Clean(users.AllowedParamsAdmin()))
if err != nil {
return router.InternalError(err, "Error", "Sorry, an error occurred creating the user record.")
}
context.Logf("#info Created user id,%d", id)
// Find the user again so we can save login
user, err := users.Find(id)
if err != nil {
context.Logf("#error parsing user id: %s", err)
return router.NotFoundError(err)
}
// Save the fact user is logged in to session cookie
err = loginUser(context, user)
if err != nil {
return router.InternalError(err)
}
// Redirect to root
return router.Redirect(context, "/?message=welcome")
}