website/pkg/controller/forum/add_edit.go

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package forum
import (
"fmt"
"net/http"
"strconv"
"strings"
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"code.nonshy.com/nonshy/website/pkg/config"
"code.nonshy.com/nonshy/website/pkg/models"
"code.nonshy.com/nonshy/website/pkg/session"
"code.nonshy.com/nonshy/website/pkg/templates"
)
// AddEdit page.
func AddEdit() http.HandlerFunc {
tmpl := templates.Must("forum/add_edit.html")
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
// Are we editing a forum or creating a new one?
var editID uint64
if editStr := r.FormValue("id"); editStr != "" {
if i, err := strconv.Atoi(editStr); err == nil {
editID = uint64(i)
} else {
session.FlashError(w, r, "Edit parameter: id was not an integer")
templates.Redirect(w, "/forum/admin")
return
}
}
// Get the current user.
currentUser, err := session.CurrentUser(r)
if err != nil {
session.FlashError(w, r, "Couldn't get current user: %s", err)
templates.Redirect(w, "/")
return
}
// If editing, look up the existing forum.
var forum *models.Forum
if editID > 0 {
if found, err := models.GetForum(editID); err != nil {
session.FlashError(w, r, "Couldn't get forum: %s", err)
templates.Redirect(w, "/forum/admin")
return
} else {
// Do we have permission?
if !found.CanEdit(currentUser) {
templates.ForbiddenPage(w, r)
return
}
forum = found
}
}
// If we are over our quota for User Forums, do not allow creating a new one.
if forum == nil && !currentUser.HasAdminScope(config.ScopeForumAdmin) && currentUser.ForumQuotaRemaining() <= 0 {
session.FlashError(w, r, "You do not currently have spare quota to create a new forum.")
templates.Redirect(w, "/forum/admin")
return
}
// Saving?
if r.Method == http.MethodPost {
var (
title = strings.TrimSpace(r.PostFormValue("title"))
fragment = strings.TrimSpace(strings.ToLower(r.PostFormValue("fragment")))
description = strings.TrimSpace(r.PostFormValue("description"))
category = strings.TrimSpace(r.PostFormValue("category"))
isExplicit = r.PostFormValue("explicit") == "true"
isPrivileged = r.PostFormValue("privileged") == "true"
isPermitPhotos = r.PostFormValue("permit_photos") == "true"
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isPrivate = r.PostFormValue("private") == "true"
)
// Sanity check admin-only settings -> default these to OFF.
if !currentUser.HasAdminScope(config.ScopeForumAdmin) {
isPrivileged = false
isPermitPhotos = false
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isPrivate = false
}
// Were we editing an existing forum?
if forum != nil {
diffs := []models.FieldDiff{
models.NewFieldDiff("Title", forum.Title, title),
models.NewFieldDiff("Description", forum.Description, description),
models.NewFieldDiff("Category", forum.Category, category),
models.NewFieldDiff("Explicit", forum.Explicit, isExplicit),
}
forum.Title = title
forum.Description = description
forum.Category = category
forum.Explicit = isExplicit
// Forum Admin-only options: if the current viewer is not a forum admin, do not change these settings.
// e.g.: the front-end checkboxes are hidden and don't want to accidentally unset these!
if currentUser.HasAdminScope(config.ScopeForumAdmin) {
diffs = append(diffs,
models.NewFieldDiff("Privileged", forum.Privileged, isPrivileged),
models.NewFieldDiff("PermitPhotos", forum.PermitPhotos, isPermitPhotos),
models.NewFieldDiff("Private", forum.Private, isPrivate),
)
forum.Privileged = isPrivileged
forum.PermitPhotos = isPermitPhotos
forum.Private = isPrivate
}
// Save it.
if err := forum.Save(); err == nil {
session.Flash(w, r, "Forum has been updated!")
templates.Redirect(w, "/forum/admin")
// Log the change.
models.LogUpdated(currentUser, nil, "forums", forum.ID, "Updated the forum's settings.", diffs)
return
} else {
session.FlashError(w, r, "Error saving the forum: %s", err)
}
} else {
// Validate the fragment. Front-end enforces the pattern so this
// is just a sanity check.
if m := FragmentRegexp.FindStringSubmatch(fragment); m == nil {
session.FlashError(w, r, "The fragment format is invalid.")
templates.Redirect(w, "/forum/admin")
return
}
// Ensure the fragment is unique.
if _, err := models.ForumByFragment(fragment); err == nil {
session.FlashError(w, r, "The forum fragment is already in use.")
} else {
// Create the forum.
forum = &models.Forum{
Owner: *currentUser,
Category: category,
Fragment: fragment,
Title: title,
Description: description,
Explicit: isExplicit,
Privileged: isPrivileged,
PermitPhotos: isPermitPhotos,
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Private: isPrivate,
}
if err := models.CreateForum(forum); err == nil {
session.Flash(w, r, "The forum has been created!")
templates.Redirect(w, "/forum/admin")
// Log the change.
models.LogCreated(currentUser, "forums", forum.ID, fmt.Sprintf(
"Created a new forum.\n\n"+
"* Category: %s\n"+
"* Title: %s\n"+
"* Fragment: %s\n"+
"* Description: %s\n"+
"* Explicit: %v\n"+
"* Privileged: %v\n"+
"* Photos: %v\n"+
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"* Private: %v",
forum.Category,
forum.Title,
forum.Fragment,
forum.Description,
forum.Explicit,
forum.Privileged,
forum.PermitPhotos,
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forum.Private,
))
// If this is a Community forum, subscribe the owner to it immediately.
if forum.Category == "" {
models.CreateForumMembership(currentUser, forum)
}
return
} else {
session.FlashError(w, r, "Error creating the forum: %s", err)
}
}
}
}
// Get the list of moderators.
var mods []*models.User
if forum != nil {
mods, err = forum.GetModerators()
if err != nil {
session.FlashError(w, r, "Error getting moderators list: %s", err)
}
}
var vars = map[string]interface{}{
"EditID": editID,
"EditForum": forum,
"Categories": config.ForumCategories,
"Moderators": mods,
}
if err := tmpl.Execute(w, r, vars); err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
})
}