247 lines
7.2 KiB
Go
247 lines
7.2 KiB
Go
package index
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import (
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"fmt"
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"html/template"
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"net/http"
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"strconv"
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"code.nonshy.com/nonshy/website/pkg/config"
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"code.nonshy.com/nonshy/website/pkg/log"
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"code.nonshy.com/nonshy/website/pkg/mail"
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"code.nonshy.com/nonshy/website/pkg/markdown"
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"code.nonshy.com/nonshy/website/pkg/models"
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"code.nonshy.com/nonshy/website/pkg/ratelimit"
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"code.nonshy.com/nonshy/website/pkg/session"
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"code.nonshy.com/nonshy/website/pkg/templates"
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)
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// Contact or report a problem.
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func Contact() http.HandlerFunc {
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tmpl := templates.Must("contact.html")
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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// Query and form POST parameters.
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var (
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intent = r.FormValue("intent")
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subject = r.FormValue("subject")
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title = "Contact Us"
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message = r.FormValue("message")
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footer string // appends to the message only when posting the feedback
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replyTo = r.FormValue("email")
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trap1 = r.FormValue("url") != "https://"
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trap2 = r.FormValue("comment") != ""
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tableID int
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tableName string
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tableLabel string // front-end user feedback about selected report item
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messageRequired = true // unless we have a table ID to work with
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success = "Thank you for your feedback! Your message has been delivered to the website administrators."
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)
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// For report intents: ID of the user, photo, message, etc.
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tableID, err := strconv.Atoi(r.FormValue("id"))
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if err != nil {
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// The tableID is not an int - was it a username?
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if user, err := models.FindUser(r.FormValue("id")); err == nil {
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tableID = int(user.ID)
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}
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}
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if tableID > 0 {
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messageRequired = false
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}
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// In what context is the ID given?
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if subject != "" && tableID > 0 {
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switch subject {
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case "report.user":
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tableName = "users"
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if user, err := models.GetUser(uint64(tableID)); err == nil {
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tableLabel = fmt.Sprintf(`User account "%s"`, user.Username)
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} else {
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log.Error("/contact: couldn't produce table label for user %d: %s", tableID, err)
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}
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case "report.photo":
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tableName = "photos"
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// Find this photo and the user associated.
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if pic, err := models.GetPhoto(uint64(tableID)); err == nil {
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if user, err := models.GetUser(pic.UserID); err == nil {
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tableLabel = fmt.Sprintf(`A profile photo of user account "%s"`, user.Username)
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} else {
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log.Error("/contact: couldn't produce table label for user %d: %s", tableID, err)
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}
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} else {
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log.Error("/contact: couldn't produce table label for photo %d: %s", tableID, err)
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}
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case "report.message":
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tableName = "messages"
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tableLabel = "Direct Message conversation"
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// Find this message, and attach it to the report.
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if msg, err := models.GetMessage(uint64(tableID)); err == nil {
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var username = "[unavailable]"
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if sender, err := models.GetUser(msg.SourceUserID); err == nil {
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username = sender.Username
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}
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footer = fmt.Sprintf(`
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---
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From: <a href="/u/%s">@%s</a>
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%s`,
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username, username,
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markdown.Quotify(msg.Message),
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)
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}
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case "report.comment":
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tableName = "comments"
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// Find this comment.
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if comment, err := models.GetComment(uint64(tableID)); err == nil {
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tableLabel = fmt.Sprintf(`A comment written by "%s"`, comment.User.Username)
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} else {
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log.Error("/contact: couldn't produce table label for comment %d: %s", tableID, err)
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}
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case "report.forum", "forum.adopt":
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tableName = "forums"
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// Find this forum.
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if forum, err := models.GetForum(uint64(tableID)); err == nil {
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tableLabel = fmt.Sprintf(`The forum "%s" (/f/%s)`, forum.Title, forum.Fragment)
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} else {
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log.Error("/contact: couldn't produce table label for comment %d: %s", tableID, err)
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}
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}
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}
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// On POST: take what we have now and email the admins.
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if r.Method == http.MethodPost {
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// Look up the current user, in case logged in.
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currentUser, err := session.CurrentUser(r)
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if err == nil {
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replyTo = currentUser.Email
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}
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// We were getting too much spam logged-out: prevent logged-out bots from still posting.
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if currentUser == nil {
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log.Error("Blocked POST /contact because user is logged-out")
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session.FlashError(w, r, "Our contact form is only for logged-in users, sorry!")
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templates.Redirect(w, "/contact")
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return
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}
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// Rate limit submissions, especially for logged-out users.
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if currentUser == nil {
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limiter := &ratelimit.Limiter{
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Namespace: "contact",
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ID: session.RemoteAddr(r),
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Limit: config.ContactRateLimit,
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Window: config.ContactRateLimitWindow,
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CooldownAt: config.ContactRateLimitCooldownAt,
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Cooldown: config.ContactRateLimitCooldown,
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}
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if err := limiter.Ping(); err != nil {
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session.FlashError(w, r, err.Error())
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templates.Redirect(w, r.URL.Path)
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return
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}
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}
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// If they have tripped the spam bot trap fields, don't save their message.
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if trap1 || trap2 {
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log.Error("Contact form: bot has tripped the trap fields, do not save message")
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session.Flash(w, r, success)
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templates.Redirect(w, r.URL.Path)
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return
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}
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// Store feedback in the database.
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fb := &models.Feedback{
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Intent: intent,
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Subject: subject,
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Message: message + footer,
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TableName: tableName,
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TableID: uint64(tableID),
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}
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if currentUser != nil && currentUser.ID > 0 {
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fb.UserID = currentUser.ID
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} else if replyTo != "" {
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fb.ReplyTo = replyTo
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}
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if err := models.CreateFeedback(fb); err != nil {
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session.FlashError(w, r, "Couldn't save feedback: %s", err)
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templates.Redirect(w, r.URL.Path)
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return
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}
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// Email the admins.
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if err := mail.Send(mail.Message{
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To: config.Current.AdminEmail,
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Subject: "User Feedback: " + title,
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Template: "email/contact_admin.html",
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Data: map[string]interface{}{
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"Title": title,
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"Intent": intent,
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"Subject": subject,
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"Message": template.HTML(markdown.Render(message)),
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"TableName": tableName,
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"TableID": tableID,
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"CurrentUser": currentUser,
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"ReplyTo": replyTo,
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"BaseURL": config.Current.BaseURL,
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"AdminURL": config.Current.BaseURL + "/admin/feedback",
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},
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}); err != nil {
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log.Error("/contact page: couldn't send email: %s", err)
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}
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session.Flash(w, r, success)
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templates.Redirect(w, r.URL.Path)
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return
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}
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// Default intent = contact
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if intent == "report" {
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title = "Report a Problem"
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} else {
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intent = "contact"
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}
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// Validate the subject.
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if subject != "" {
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var found bool
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for _, group := range config.ContactUsChoices {
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for _, opt := range group.Options {
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if opt.Value == subject {
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found = true
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break
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}
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}
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}
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if !found {
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subject = ""
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}
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}
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var vars = map[string]interface{}{
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"Intent": intent,
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"TableID": r.FormValue("id"),
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"TableLabel": tableLabel,
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"Subject": subject,
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"PageTitle": title,
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"Subjects": config.ContactUsChoices,
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"Message": message,
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"MessageRequired": messageRequired,
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}
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if err := tmpl.Execute(w, r, vars); 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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})
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}
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