// FacebookPostTopStory facebook posts the top story
func FacebookPostTopStory(context schedule.Context) {
context.Log("#info posting top story facebook")
// Get the top story
q := stories.Popular().Limit(1).Order("rank desc, points desc, id desc")
// Don't fetch old stories
q.Where("created_at > current_timestamp - interval '6 hours'")
// Fetch the story
results, err := stories.FindAll(q)
if err != nil {
context.Logf("#error getting top story for fb %s", err)
return
}
if len(results) > 0 {
story := results[0]
context.Logf("#info facebook posting %s", story.Name)
err := facebook.Post(story.Name, story.Url)
if err != nil {
context.Logf("#error facebook post top story %s", err)
return
}
// Do not record fb posts - this could lead to duplicates...
// we should perhaps have a join table for social media posts, rather than dates on stories?
} else {
context.Logf("#warn no top story found for fb")
}
}
// 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
}
}
// TweetTopStory tweets the top story
func TweetTopStory(context schedule.Context) {
context.Log("Sending top story tweet")
// Get the top story which has not been tweeted yet, newer than 1 day (we don't look at older stories)
q := stories.Popular().Limit(1).Order("rank desc, points desc, id desc")
// Don't fetch old stories - at some point soon this can come down to 1 day
// as all older stories will have been tweeted
// For now omit this as we have a backlog of old unposted stories
// q.Where("created_at > current_timestamp - interval '60 days'")
// Don't fetch stories that have already been tweeted
q.Where("tweeted_at IS NULL")
// Fetch the stories
results, err := stories.FindAll(q)
if err != nil {
context.Logf("#error getting top story tweet %s", err)
return
}
if len(results) > 0 {
story := results[0]
// Link to the primary url for this type of story
url := story.PrimaryURL()
if strings.HasPrefix(url, "/") {
url = "https://golangnews.com" + url
}
tweet := fmt.Sprintf("%s #golang %s", story.Name, url)
context.Logf("#info sending tweet:%s", tweet)
_, err := twitter.Tweet(tweet)
if err != nil {
context.Logf("#error tweeting top story %s", err)
return
}
// Record that this story has been tweeted in db
params := map[string]string{"tweeted_at": query.TimeString(time.Now().UTC())}
err = story.Update(params)
if err != nil {
context.Logf("#error updating top story tweet %s", err)
return
}
} else {
context.Logf("#warn no top story found for tweet")
}
}
// HandleIndex displays a list of stories at /stories
func HandleIndex(context router.Context) error {
// Build a query
q := stories.Query().Limit(listLimit)
// Order by date by default
q.Where("points > -6").Order("created_at desc")
// Filter if necessary - this assumes name and summary cols
filter := context.Param("q")
if len(filter) > 0 {
// Replace special characters with escaped sequence
filter = strings.Replace(filter, "_", "\\_", -1)
filter = strings.Replace(filter, "%", "\\%", -1)
wildcard := "%" + filter + "%"
// Perform a wildcard search for name or url
q.Where("stories.name ILIKE ? OR stories.url ILIKE ?", wildcard, wildcard)
// If filtering, order by rank, not by date
q.Order("rank desc, points desc, id desc")
}
// Set the offset in pages if we have one
page := int(context.ParamInt("page"))
if page > 0 {
q.Offset(listLimit * page)
}
// Fetch the stories
results, err := stories.FindAll(q)
if err != nil {
return router.InternalError(err)
}
// Render the template
view := view.New(context)
setStoriesMetadata(view, context.Request())
view.AddKey("page", page)
view.AddKey("stories", results)
if context.Param("format") == ".xml" {
view.Layout("")
view.Template("stories/views/index.xml.got")
}
return view.Render()
}
// HandleUpvoted displays a list of stories the user has upvoted in the past
func HandleUpvoted(context router.Context) error {
// Build a query
q := stories.Query().Limit(listLimit)
// Select only above 0 points, Order by rank, then points, then name
q.Where("points > 0").Order("rank desc, points desc, id desc")
// Select only stories which the user has upvoted
user := authorise.CurrentUser(context)
if !user.Anon() {
// Can we use a join instead?
v := query.New("votes", "story_id").Select("select story_id as id from votes").Where("user_id=? AND story_id IS NOT NULL AND points > 0", user.Id)
storyIDs := v.ResultIDs()
if len(storyIDs) > 0 {
q.WhereIn("id", storyIDs)
}
}
// Set the offset in pages if we have one
page := int(context.ParamInt("page"))
if page > 0 {
q.Offset(listLimit * page)
}
// Fetch the stories
results, err := stories.FindAll(q)
if err != nil {
return router.InternalError(err)
}
// Render the template
view := view.New(context)
setStoriesMetadata(view, context.Request())
view.AddKey("page", page)
view.AddKey("stories", results)
view.Template("stories/views/index.html.got")
if context.Param("format") == ".xml" {
view.Layout("")
view.Template("stories/views/index.xml.got")
}
return view.Render()
}
// HandleCode displays a list of stories linking to repos (github etc) using gravity to order them
// responds to GET /stories/code
func HandleCode(context router.Context) error {
// Build a query
q := stories.Query().Where("points > -6").Order("rank desc, points desc, id desc").Limit(listLimit)
// Restrict to stories with have a url starting with github.com or bitbucket.org
// other code repos can be added later
q.Where("url ILIKE 'https://github.com%'").OrWhere("url ILIKE 'https://bitbucket.org'")
// Set the offset in pages if we have one
page := int(context.ParamInt("page"))
if page > 0 {
q.Offset(listLimit * page)
}
// Fetch the stories
results, err := stories.FindAll(q)
if err != nil {
return router.InternalError(err)
}
// Render the template
view := view.New(context)
setStoriesMetadata(view, context.Request())
view.AddKey("page", page)
view.AddKey("stories", results)
view.Template("stories/views/index.html.got")
if context.Param("format") == ".xml" {
view.Layout("")
view.Template("stories/views/index.xml.got")
}
return view.Render()
}
// 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()
}
// HandleHome displays a list of stories using gravity to order them
// used for the home page for gravity rank see votes.go
// responds to GET /
func HandleHome(context router.Context) error {
// Build a query
q := stories.Query().Limit(listLimit)
// Select only above 0 points, Order by rank, then points, then name
q.Where("points > 0").Order("rank desc, points desc, id desc")
// Set the offset in pages if we have one
page := int(context.ParamInt("page"))
if page > 0 {
q.Offset(listLimit * page)
}
// Fetch the stories
results, err := stories.FindAll(q)
if err != nil {
return router.InternalError(err)
}
// Render the template
view := view.New(context)
setStoriesMetadata(view, context.Request())
view.AddKey("page", page)
view.AddKey("stories", results)
view.AddKey("meta_title", "London TechCity News")
view.Template("stories/views/index.html.got")
if context.Param("format") == ".xml" {
view.Layout("")
view.Template("stories/views/index.xml.got")
}
return view.Render()
}
// HandleCreate handles the POST of the create form for stories
func HandleCreate(context router.Context) error {
// Check csrf token
err := authorise.AuthenticityToken(context)
if err != nil {
return router.NotAuthorizedError(err)
}
// Check permissions - if not logged in and above 1 points, redirect to error
if !authorise.CurrentUser(context).CanSubmit() {
return router.NotAuthorizedError(nil, "Sorry", "You need to be registered and have more than 1 points to submit stories.")
}
// Get params
params, err := context.Params()
if err != nil {
return router.InternalError(err)
}
// Get user details
user := authorise.CurrentUser(context)
ip := getUserIP(context)
// Process urls
url := params.Get("url")
// Strip trailing slashes on url before comparisons
if strings.HasSuffix(url, "/") {
url = strings.Trim(url, "/")
}
// Strip ?utm_source etc - remove all after ?utm_source
if strings.Contains(url, "?utm_") {
url = strings.Split(url, "?utm_")[0]
}
// Strip url fragments (For example trailing # on medium urls)
if strings.Contains(url, "#") {
url = strings.Split(url, "#")[0]
}
// Rewrite mobile youtube links
if strings.HasPrefix(url, "https://m.youtube.com") {
url = strings.Replace(url, "https://m.youtube.com", "https://www.youtube.com", 1)
}
params.Set("url", url)
// Check that no story with this url already exists
q := stories.Where("url=?", url)
duplicates, err := stories.FindAll(q)
if err != nil {
return router.InternalError(err)
}
if len(duplicates) > 0 {
story := duplicates[0]
// Check we have no votes already from this user, if we do fail
if storyHasUserVote(story, user) {
return router.NotAuthorizedError(err, "Vote Failed", "Sorry you are not allowed to vote twice, nice try!")
}
// Add a point to dupe and return
addStoryVote(story, user, ip, 1)
return router.Redirect(context, story.URLShow())
}
// Clean params according to role
accepted := stories.AllowedParams()
if authorise.CurrentUser(context).Admin() {
accepted = stories.AllowedParamsAdmin()
}
cleanedParams := params.Clean(accepted)
// Set a few params
cleanedParams["points"] = "1"
cleanedParams["user_id"] = fmt.Sprintf("%d", user.Id)
cleanedParams["user_name"] = user.Name
id, err := stories.Create(cleanedParams)
if err != nil {
return err // Create returns a router.Error
}
// Log creation
context.Logf("#info Created story id,%d", id)
// Redirect to the new story
story, err := stories.Find(id)
if err != nil {
return router.InternalError(err)
}
// We need to add a vote to the story here too by adding a join to the new id
err = recordStoryVote(story, user, ip, +1)
if err != nil {
return err
}
// Re-rank stories
err = updateStoriesRank()
if err != nil {
return err
}
return router.Redirect(context, story.URLIndex())
}