A simple, federated blogging platform. Written in Go. Fork by @gytisrepecka to provide suggestions and fixes to upstream @writeas.
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/*
* Copyright © 2018-2020 A Bunch Tell LLC.
*
* This file is part of WriteFreely.
*
* WriteFreely is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, included
* in the LICENSE file in this source code package.
*/
package writefreely
import (
"database/sql"
"fmt"
"net/http"
"runtime"
"strconv"
"strings"
"time"
"github.com/gorilla/mux"
"github.com/writeas/impart"
"github.com/writeas/web-core/auth"
"github.com/writeas/web-core/log"
"github.com/writeas/web-core/passgen"
"github.com/writeas/writefreely/appstats"
"github.com/writeas/writefreely/config"
)
var (
appStartTime = time.Now()
sysStatus systemStatus
)
const adminUsersPerPage = 30
type systemStatus struct {
Uptime string
NumGoroutine int
// General statistics.
MemAllocated string // bytes allocated and still in use
MemTotal string // bytes allocated (even if freed)
MemSys string // bytes obtained from system (sum of XxxSys below)
Lookups uint64 // number of pointer lookups
MemMallocs uint64 // number of mallocs
MemFrees uint64 // number of frees
// Main allocation heap statistics.
HeapAlloc string // bytes allocated and still in use
HeapSys string // bytes obtained from system
HeapIdle string // bytes in idle spans
HeapInuse string // bytes in non-idle span
HeapReleased string // bytes released to the OS
HeapObjects uint64 // total number of allocated objects
// Low-level fixed-size structure allocator statistics.
// Inuse is bytes used now.
// Sys is bytes obtained from system.
StackInuse string // bootstrap stacks
StackSys string
MSpanInuse string // mspan structures
MSpanSys string
MCacheInuse string // mcache structures
MCacheSys string
BuckHashSys string // profiling bucket hash table
GCSys string // GC metadata
OtherSys string // other system allocations
// Garbage collector statistics.
NextGC string // next run in HeapAlloc time (bytes)
LastGC string // last run in absolute time (ns)
PauseTotalNs string
PauseNs string // circular buffer of recent GC pause times, most recent at [(NumGC+255)%256]
NumGC uint32
}
type inspectedCollection struct {
CollectionObj
Followers int
LastPost string
}
type instanceContent struct {
ID string
Type string
Title sql.NullString
Content string
Updated time.Time
}
type AdminPage struct {
UpdateAvailable bool
}
func NewAdminPage(app *App) *AdminPage {
ap := &AdminPage{}
if app.updates != nil {
ap.UpdateAvailable = app.updates.AreAvailableNoCheck()
}
return ap
}
func (c instanceContent) UpdatedFriendly() string {
/*
// TODO: accept a locale in this method and use that for the format
var loc monday.Locale = monday.LocaleEnUS
return monday.Format(u.Created, monday.DateTimeFormatsByLocale[loc], loc)
*/
return c.Updated.Format("January 2, 2006, 3:04 PM")
}
func handleViewAdminDash(app *App, u *User, w http.ResponseWriter, r *http.Request) error {
p := struct {
*UserPage
*AdminPage
Message string
UsersCount, CollectionsCount, PostsCount int64
}{
UserPage: NewUserPage(app, r, u, "Admin", nil),
AdminPage: NewAdminPage(app),
Message: r.FormValue("m"),
}
// Get user stats
p.UsersCount = app.db.GetAllUsersCount()
var err error
p.CollectionsCount, err = app.db.GetTotalCollections()
if err != nil {
return err
}
p.PostsCount, err = app.db.GetTotalPosts()
if err != nil {
return err
}
showUserPage(w, "admin", p)
return nil
}
func handleViewAdminMonitor(app *App, u *User, w http.ResponseWriter, r *http.Request) error {
updateAppStats()
p := struct {
*UserPage
*AdminPage
SysStatus systemStatus
Config config.AppCfg
Message, ConfigMessage string
}{
UserPage: NewUserPage(app, r, u, "Admin", nil),
AdminPage: NewAdminPage(app),
SysStatus: sysStatus,
Config: app.cfg.App,
Message: r.FormValue("m"),
ConfigMessage: r.FormValue("cm"),
}
showUserPage(w, "monitor", p)
return nil
}
func handleViewAdminSettings(app *App, u *User, w http.ResponseWriter, r *http.Request) error {
p := struct {
*UserPage
*AdminPage
Config config.AppCfg
Message, ConfigMessage string
}{
UserPage: NewUserPage(app, r, u, "Admin", nil),
AdminPage: NewAdminPage(app),
Config: app.cfg.App,
Message: r.FormValue("m"),
ConfigMessage: r.FormValue("cm"),
}
showUserPage(w, "app-settings", p)
return nil
}
func handleViewAdminUsers(app *App, u *User, w http.ResponseWriter, r *http.Request) error {
p := struct {
*UserPage
*AdminPage
Config config.AppCfg
Message string
Users *[]User
CurPage int
TotalUsers int64
TotalPages []int
}{
UserPage: NewUserPage(app, r, u, "Users", nil),
AdminPage: NewAdminPage(app),
Config: app.cfg.App,
Message: r.FormValue("m"),
}
p.TotalUsers = app.db.GetAllUsersCount()
ttlPages := p.TotalUsers / adminUsersPerPage
p.TotalPages = []int{}
for i := 1; i <= int(ttlPages); i++ {
p.TotalPages = append(p.TotalPages, i)
}
var err error
p.CurPage, err = strconv.Atoi(r.FormValue("p"))
if err != nil || p.CurPage < 1 {
p.CurPage = 1
} else if p.CurPage > int(ttlPages) {
p.CurPage = int(ttlPages)
}
p.Users, err = app.db.GetAllUsers(uint(p.CurPage))
if err != nil {
return impart.HTTPError{http.StatusInternalServerError, fmt.Sprintf("Could not get users: %v", err)}
}
showUserPage(w, "users", p)
return nil
}
func handleViewAdminUser(app *App, u *User, w http.ResponseWriter, r *http.Request) error {
vars := mux.Vars(r)
username := vars["username"]
if username == "" {
return impart.HTTPError{http.StatusFound, "/admin/users"}
}
p := struct {
*UserPage
*AdminPage
Config config.AppCfg
Message string
User *User
Colls []inspectedCollection
LastPost string
NewPassword string
TotalPosts int64
ClearEmail string
}{
AdminPage: NewAdminPage(app),
Config: app.cfg.App,
Message: r.FormValue("m"),
Colls: []inspectedCollection{},
}
var err error
p.User, err = app.db.GetUserForAuth(username)
if err != nil {
if err == ErrUserNotFound {
return err
}
log.Error("Could not get user: %v", err)
return impart.HTTPError{http.StatusInternalServerError, err.Error()}
}
flashes, _ := getSessionFlashes(app, w, r, nil)
for _, flash := range flashes {
if strings.HasPrefix(flash, "SUCCESS: ") {
p.NewPassword = strings.TrimPrefix(flash, "SUCCESS: ")
p.ClearEmail = p.User.EmailClear(app.keys)
}
}
p.UserPage = NewUserPage(app, r, u, p.User.Username, nil)
p.TotalPosts = app.db.GetUserPostsCount(p.User.ID)
lp, err := app.db.GetUserLastPostTime(p.User.ID)
if err != nil {
return impart.HTTPError{http.StatusInternalServerError, fmt.Sprintf("Could not get user's last post time: %v", err)}
}
if lp != nil {
p.LastPost = lp.Format("January 2, 2006, 3:04 PM")
}
colls, err := app.db.GetCollections(p.User, app.cfg.App.Host)
if err != nil {
return impart.HTTPError{http.StatusInternalServerError, fmt.Sprintf("Could not get user's collections: %v", err)}
}
for _, c := range *colls {
ic := inspectedCollection{
CollectionObj: CollectionObj{Collection: c},
}
if app.cfg.App.Federation {
folls, err := app.db.GetAPFollowers(&c)
if err == nil {
// TODO: handle error here (at least log it)
ic.Followers = len(*folls)
}
}
app.db.GetPostsCount(&ic.CollectionObj, true)
lp, err := app.db.GetCollectionLastPostTime(c.ID)
if err != nil {
log.Error("Didn't get last post time for collection %d: %v", c.ID, err)
}
if lp != nil {
ic.LastPost = lp.Format("January 2, 2006, 3:04 PM")
}
p.Colls = append(p.Colls, ic)
}
showUserPage(w, "view-user", p)
return nil
}
func handleAdminToggleUserStatus(app *App, u *User, w http.ResponseWriter, r *http.Request) error {
vars := mux.Vars(r)
username := vars["username"]
if username == "" {
return impart.HTTPError{http.StatusFound, "/admin/users"}
}
user, err := app.db.GetUserForAuth(username)
if err != nil {
log.Error("failed to get user: %v", err)
return impart.HTTPError{http.StatusInternalServerError, fmt.Sprintf("Could not get user from username: %v", err)}
}
if user.IsSilenced() {
err = app.db.SetUserStatus(user.ID, UserActive)
} else {
err = app.db.SetUserStatus(user.ID, UserSilenced)
}
if err != nil {
log.Error("toggle user silenced: %v", err)
return impart.HTTPError{http.StatusInternalServerError, fmt.Sprintf("Could not toggle user status: %v", err)}
}
return impart.HTTPError{http.StatusFound, fmt.Sprintf("/admin/user/%s#status", username)}
}
func handleAdminResetUserPass(app *App, u *User, w http.ResponseWriter, r *http.Request) error {
vars := mux.Vars(r)
username := vars["username"]
if username == "" {
return impart.HTTPError{http.StatusFound, "/admin/users"}
}
// Generate new random password since none supplied
pass := passgen.NewWordish()
hashedPass, err := auth.HashPass([]byte(pass))
if err != nil {
return impart.HTTPError{http.StatusInternalServerError, fmt.Sprintf("Could not create password hash: %v", err)}
}
userIDVal := r.FormValue("user")
log.Info("ADMIN: Changing user %s password", userIDVal)
id, err := strconv.Atoi(userIDVal)
if err != nil {
return impart.HTTPError{http.StatusBadRequest, fmt.Sprintf("Invalid user ID: %v", err)}
}
err = app.db.ChangePassphrase(int64(id), true, "", hashedPass)
if err != nil {
return impart.HTTPError{http.StatusInternalServerError, fmt.Sprintf("Could not update passphrase: %v", err)}
}
log.Info("ADMIN: Successfully changed.")
addSessionFlash(app, w, r, fmt.Sprintf("SUCCESS: %s", pass), nil)
return impart.HTTPError{http.StatusFound, fmt.Sprintf("/admin/user/%s", username)}
}
func handleViewAdminPages(app *App, u *User, w http.ResponseWriter, r *http.Request) error {
p := struct {
*UserPage
*AdminPage
Config config.AppCfg
Message string
Pages []*instanceContent
}{
UserPage: NewUserPage(app, r, u, "Pages", nil),
AdminPage: NewAdminPage(app),
Config: app.cfg.App,
Message: r.FormValue("m"),
}
var err error
p.Pages, err = app.db.GetInstancePages()
if err != nil {
return impart.HTTPError{http.StatusInternalServerError, fmt.Sprintf("Could not get pages: %v", err)}
}
// Add in default pages
var hasAbout, hasPrivacy bool
for i, c := range p.Pages {
if hasAbout && hasPrivacy {
break
}
if c.ID == "about" {
hasAbout = true
if !c.Title.Valid {
p.Pages[i].Title = defaultAboutTitle(app.cfg)
}
} else if c.ID == "privacy" {
hasPrivacy = true
if !c.Title.Valid {
p.Pages[i].Title = defaultPrivacyTitle()
}
}
}
if !hasAbout {
p.Pages = append(p.Pages, &instanceContent{
ID: "about",
Title: defaultAboutTitle(app.cfg),
Content: defaultAboutPage(app.cfg),
Updated: defaultPageUpdatedTime,
})
}
if !hasPrivacy {
p.Pages = append(p.Pages, &instanceContent{
ID: "privacy",
Title: defaultPrivacyTitle(),
Content: defaultPrivacyPolicy(app.cfg),
Updated: defaultPageUpdatedTime,
})
}
showUserPage(w, "pages", p)
return nil
}
func handleViewAdminPage(app *App, u *User, w http.ResponseWriter, r *http.Request) error {
vars := mux.Vars(r)
slug := vars["slug"]
if slug == "" {
return impart.HTTPError{http.StatusFound, "/admin/pages"}
}
p := struct {
*UserPage
*AdminPage
Config config.AppCfg
Message string
Banner *instanceContent
Content *instanceContent
}{
AdminPage: NewAdminPage(app),
Config: app.cfg.App,
Message: r.FormValue("m"),
}
var err error
// Get pre-defined pages, or select slug
if slug == "about" {
p.Content, err = getAboutPage(app)
} else if slug == "privacy" {
p.Content, err = getPrivacyPage(app)
} else if slug == "landing" {
p.Banner, err = getLandingBanner(app)
if err != nil {
return impart.HTTPError{http.StatusInternalServerError, fmt.Sprintf("Could not get banner: %v", err)}
}
p.Content, err = getLandingBody(app)
p.Content.ID = "landing"
} else if slug == "reader" {
p.Content, err = getReaderSection(app)
} else {
p.Content, err = app.db.GetDynamicContent(slug)
}
if err != nil {
return impart.HTTPError{http.StatusInternalServerError, fmt.Sprintf("Could not get page: %v", err)}
}
title := "New page"
if p.Content != nil {
title = "Edit " + p.Content.ID
} else {
p.Content = &instanceContent{}
}
p.UserPage = NewUserPage(app, r, u, title, nil)
showUserPage(w, "view-page", p)
return nil
}
func handleAdminUpdateSite(app *App, u *User, w http.ResponseWriter, r *http.Request) error {
vars := mux.Vars(r)
id := vars["page"]
// Validate
if id != "about" && id != "privacy" && id != "landing" && id != "reader" {
return impart.HTTPError{http.StatusNotFound, "No such page."}
}
var err error
m := ""
if id == "landing" {
// Handle special landing page
err = app.db.UpdateDynamicContent("landing-banner", "", r.FormValue("banner"), "section")
if err != nil {
m = "?m=" + err.Error()
return impart.HTTPError{http.StatusFound, "/admin/page/" + id + m}
}
err = app.db.UpdateDynamicContent("landing-body", "", r.FormValue("content"), "section")
} else if id == "reader" {
// Update sections with titles
err = app.db.UpdateDynamicContent(id, r.FormValue("title"), r.FormValue("content"), "section")
} else {
// Update page
err = app.db.UpdateDynamicContent(id, r.FormValue("title"), r.FormValue("content"), "page")
}
if err != nil {
m = "?m=" + err.Error()
}
return impart.HTTPError{http.StatusFound, "/admin/page/" + id + m}
}
func handleAdminUpdateConfig(apper Apper, u *User, w http.ResponseWriter, r *http.Request) error {
apper.App().cfg.App.SiteName = r.FormValue("site_name")
apper.App().cfg.App.SiteDesc = r.FormValue("site_desc")
apper.App().cfg.App.Landing = r.FormValue("landing")
apper.App().cfg.App.OpenRegistration = r.FormValue("open_registration") == "on"
mul, err := strconv.Atoi(r.FormValue("min_username_len"))
if err == nil {
apper.App().cfg.App.MinUsernameLen = mul
}
mb, err := strconv.Atoi(r.FormValue("max_blogs"))
if err == nil {
apper.App().cfg.App.MaxBlogs = mb
}
apper.App().cfg.App.Federation = r.FormValue("federation") == "on"
apper.App().cfg.App.PublicStats = r.FormValue("public_stats") == "on"
apper.App().cfg.App.Private = r.FormValue("private") == "on"
apper.App().cfg.App.LocalTimeline = r.FormValue("local_timeline") == "on"
if apper.App().cfg.App.LocalTimeline && apper.App().timeline == nil {
log.Info("Initializing local timeline...")
initLocalTimeline(apper.App())
}
apper.App().cfg.App.UserInvites = r.FormValue("user_invites")
if apper.App().cfg.App.UserInvites == "none" {
apper.App().cfg.App.UserInvites = ""
}
apper.App().cfg.App.DefaultVisibility = r.FormValue("default_visibility")
m := "?cm=Configuration+saved."
err = apper.SaveConfig(apper.App().cfg)
if err != nil {
m = "?cm=" + err.Error()
}
return impart.HTTPError{http.StatusFound, "/admin/settings" + m + "#config"}
}
func updateAppStats() {
sysStatus.Uptime = appstats.TimeSincePro(appStartTime)
m := new(runtime.MemStats)
runtime.ReadMemStats(m)
sysStatus.NumGoroutine = runtime.NumGoroutine()
sysStatus.MemAllocated = appstats.FileSize(int64(m.Alloc))
sysStatus.MemTotal = appstats.FileSize(int64(m.TotalAlloc))
sysStatus.MemSys = appstats.FileSize(int64(m.Sys))
sysStatus.Lookups = m.Lookups
sysStatus.MemMallocs = m.Mallocs
sysStatus.MemFrees = m.Frees
sysStatus.HeapAlloc = appstats.FileSize(int64(m.HeapAlloc))
sysStatus.HeapSys = appstats.FileSize(int64(m.HeapSys))
sysStatus.HeapIdle = appstats.FileSize(int64(m.HeapIdle))
sysStatus.HeapInuse = appstats.FileSize(int64(m.HeapInuse))
sysStatus.HeapReleased = appstats.FileSize(int64(m.HeapReleased))
sysStatus.HeapObjects = m.HeapObjects
sysStatus.StackInuse = appstats.FileSize(int64(m.StackInuse))
sysStatus.StackSys = appstats.FileSize(int64(m.StackSys))
sysStatus.MSpanInuse = appstats.FileSize(int64(m.MSpanInuse))
sysStatus.MSpanSys = appstats.FileSize(int64(m.MSpanSys))
sysStatus.MCacheInuse = appstats.FileSize(int64(m.MCacheInuse))
sysStatus.MCacheSys = appstats.FileSize(int64(m.MCacheSys))
sysStatus.BuckHashSys = appstats.FileSize(int64(m.BuckHashSys))
sysStatus.GCSys = appstats.FileSize(int64(m.GCSys))
sysStatus.OtherSys = appstats.FileSize(int64(m.OtherSys))
sysStatus.NextGC = appstats.FileSize(int64(m.NextGC))
sysStatus.LastGC = fmt.Sprintf("%.1fs", float64(time.Now().UnixNano()-int64(m.LastGC))/1000/1000/1000)
sysStatus.PauseTotalNs = fmt.Sprintf("%.1fs", float64(m.PauseTotalNs)/1000/1000/1000)
sysStatus.PauseNs = fmt.Sprintf("%.3fs", float64(m.PauseNs[(m.NumGC+255)%256])/1000/1000/1000)
sysStatus.NumGC = m.NumGC
}
func adminResetPassword(app *App, u *User, newPass string) error {
hashedPass, err := auth.HashPass([]byte(newPass))
if err != nil {
return impart.HTTPError{http.StatusInternalServerError, fmt.Sprintf("Could not create password hash: %v", err)}
}
err = app.db.ChangePassphrase(u.ID, true, "", hashedPass)
if err != nil {
return impart.HTTPError{http.StatusInternalServerError, fmt.Sprintf("Could not update passphrase: %v", err)}
}
return nil
}
func handleViewAdminUpdates(app *App, u *User, w http.ResponseWriter, r *http.Request) error {
check := r.URL.Query().Get("check")
if check == "now" && app.cfg.App.UpdateChecks {
app.updates.CheckNow()
}
p := struct {
*UserPage
*AdminPage
CurReleaseNotesURL string
LastChecked string
LastChecked8601 string
LatestVersion string
LatestReleaseURL string
LatestReleaseNotesURL string
CheckFailed bool
}{
UserPage: NewUserPage(app, r, u, "Updates", nil),
AdminPage: NewAdminPage(app),
}
p.CurReleaseNotesURL = wfReleaseNotesURL(p.Version)
if app.cfg.App.UpdateChecks {
p.LastChecked = app.updates.lastCheck.Format("January 2, 2006, 3:04 PM")
p.LastChecked8601 = app.updates.lastCheck.Format("2006-01-02T15:04:05Z")
p.LatestVersion = app.updates.LatestVersion()
p.LatestReleaseURL = app.updates.ReleaseURL()
p.LatestReleaseNotesURL = app.updates.ReleaseNotesURL()
p.UpdateAvailable = app.updates.AreAvailable()
p.CheckFailed = app.updates.checkError != nil
}
showUserPage(w, "app-updates", p)
return nil
}