mirror of
https://github.com/thomiceli/opengist.git
synced 2024-12-23 13:02:39 +00:00
514 lines
13 KiB
Go
514 lines
13 KiB
Go
package web
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import (
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"context"
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"encoding/json"
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"errors"
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"fmt"
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"github.com/thomiceli/opengist/internal/index"
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htmlpkg "html"
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"html/template"
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"io"
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"net/http"
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"path/filepath"
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"regexp"
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"strconv"
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"strings"
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"time"
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"github.com/gorilla/sessions"
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"github.com/labstack/echo/v4"
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"github.com/labstack/echo/v4/middleware"
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"github.com/markbates/goth/gothic"
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"github.com/rs/zerolog/log"
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"github.com/thomiceli/opengist/internal/config"
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"github.com/thomiceli/opengist/internal/db"
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"github.com/thomiceli/opengist/internal/git"
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"github.com/thomiceli/opengist/internal/i18n"
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"github.com/thomiceli/opengist/public"
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"github.com/thomiceli/opengist/templates"
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"golang.org/x/text/language"
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)
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var (
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dev bool
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store *sessions.CookieStore
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re = regexp.MustCompile("[^a-z0-9]+")
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fm = template.FuncMap{
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"split": strings.Split,
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"indexByte": strings.IndexByte,
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"toInt": func(i string) int {
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val, _ := strconv.Atoi(i)
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return val
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},
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"inc": func(i int) int {
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return i + 1
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},
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"splitGit": func(i string) []string {
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return strings.FieldsFunc(i, func(r rune) bool {
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return r == ',' || r == ' '
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})
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},
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"lines": func(i string) []string {
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return strings.Split(i, "\n")
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},
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"isMarkdown": func(i string) bool {
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return strings.ToLower(filepath.Ext(i)) == ".md"
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},
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"isCsv": func(i string) bool {
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return strings.ToLower(filepath.Ext(i)) == ".csv"
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},
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"csvFile": func(file *git.File) *git.CsvFile {
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if strings.ToLower(filepath.Ext(file.Filename)) != ".csv" {
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return nil
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}
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csvFile, err := git.ParseCsv(file)
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if err != nil {
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return nil
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}
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return csvFile
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},
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"httpStatusText": http.StatusText,
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"loadedTime": func(startTime time.Time) string {
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return fmt.Sprint(time.Since(startTime).Nanoseconds()/1e6) + "ms"
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},
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"slug": func(s string) string {
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return strings.Trim(re.ReplaceAllString(strings.ToLower(s), "-"), "-")
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},
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"avatarUrl": func(user *db.User, noGravatar bool) string {
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if user.AvatarURL != "" {
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return user.AvatarURL
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}
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if user.MD5Hash != "" && !noGravatar {
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return "https://www.gravatar.com/avatar/" + user.MD5Hash + "?d=identicon&s=200"
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}
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return defaultAvatar()
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},
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"asset": asset,
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"dev": func() bool {
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return dev
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},
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"defaultAvatar": defaultAvatar,
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"visibilityStr": func(visibility db.Visibility, lowercase bool) string {
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s := "Public"
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switch visibility {
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case 1:
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s = "Unlisted"
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case 2:
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s = "Private"
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}
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if lowercase {
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return strings.ToLower(s)
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}
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return s
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},
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"unescape": htmlpkg.UnescapeString,
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"join": func(s ...string) string {
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return strings.Join(s, "")
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},
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"toStr": func(i interface{}) string {
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return fmt.Sprint(i)
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},
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"safe": func(s string) template.HTML {
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return template.HTML(s)
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},
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"dict": func(values ...interface{}) (map[string]interface{}, error) {
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if len(values)%2 != 0 {
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return nil, errors.New("invalid dict call")
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}
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dict := make(map[string]interface{})
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for i := 0; i < len(values); i += 2 {
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key, ok := values[i].(string)
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if !ok {
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return nil, errors.New("dict keys must be strings")
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}
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dict[key] = values[i+1]
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}
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return dict, nil
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},
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"addMetadataToSearchQuery": addMetadataToSearchQuery,
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"indexEnabled": index.Enabled,
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}
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)
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type Template struct {
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templates *template.Template
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}
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func (t *Template) Render(w io.Writer, name string, data interface{}, _ echo.Context) error {
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return t.templates.ExecuteTemplate(w, name, data)
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}
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type Server struct {
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echo *echo.Echo
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dev bool
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}
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func NewServer(isDev bool) *Server {
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dev = isDev
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store = sessions.NewCookieStore([]byte("opengist"))
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gothic.Store = store
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e := echo.New()
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e.HideBanner = true
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e.HidePort = true
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if err := i18n.Locales.LoadAll(); err != nil {
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log.Fatal().Err(err).Msg("Failed to load locales")
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}
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e.Use(dataInit)
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e.Use(locale)
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e.Pre(middleware.MethodOverrideWithConfig(middleware.MethodOverrideConfig{
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Getter: middleware.MethodFromForm("_method"),
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}))
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e.Pre(middleware.RemoveTrailingSlash())
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e.Pre(middleware.CORS())
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e.Pre(middleware.RequestLoggerWithConfig(middleware.RequestLoggerConfig{
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LogURI: true, LogStatus: true, LogMethod: true,
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LogValuesFunc: func(ctx echo.Context, v middleware.RequestLoggerValues) error {
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log.Info().Str("URI", v.URI).Int("status", v.Status).Str("method", v.Method).
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Str("ip", ctx.RealIP()).
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Msg("HTTP")
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return nil
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},
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}))
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e.Use(middleware.Recover())
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e.Use(middleware.Secure())
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e.Renderer = &Template{
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templates: template.Must(template.New("t").Funcs(fm).ParseFS(templates.Files, "*/*.html")),
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}
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e.HTTPErrorHandler = func(er error, ctx echo.Context) {
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if err, ok := er.(*echo.HTTPError); ok {
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if err.Code >= 500 {
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log.Error().Int("code", err.Code).Err(err.Internal).Msg("HTTP: " + err.Message.(string))
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}
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setData(ctx, "error", err)
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if errHtml := htmlWithCode(ctx, err.Code, "error.html"); errHtml != nil {
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log.Fatal().Err(errHtml).Send()
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}
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} else {
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log.Fatal().Err(er).Send()
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}
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}
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e.Use(sessionInit)
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e.Validator = NewValidator()
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if !dev {
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parseManifestEntries()
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e.GET("/assets/*", cacheControl(echo.WrapHandler(http.FileServer(http.FS(public.Files)))))
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}
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// Web based routes
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g1 := e.Group("")
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{
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if !dev {
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g1.Use(middleware.CSRFWithConfig(middleware.CSRFConfig{
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TokenLookup: "form:_csrf",
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CookiePath: "/",
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CookieHTTPOnly: true,
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CookieSameSite: http.SameSiteStrictMode,
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}))
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g1.Use(csrfInit)
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}
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g1.GET("/", create, logged)
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g1.POST("/", processCreate, logged)
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g1.GET("/healthcheck", healthcheck)
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g1.GET("/register", register)
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g1.POST("/register", processRegister)
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g1.GET("/login", login)
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g1.POST("/login", processLogin)
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g1.GET("/logout", logout)
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g1.GET("/oauth/:provider", oauth)
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g1.GET("/oauth/:provider/callback", oauthCallback)
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g1.GET("/settings", userSettings, logged)
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g1.POST("/settings/email", emailProcess, logged)
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g1.DELETE("/settings/account", accountDeleteProcess, logged)
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g1.POST("/settings/ssh-keys", sshKeysProcess, logged)
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g1.DELETE("/settings/ssh-keys/:id", sshKeysDelete, logged)
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g1.PUT("/settings/password", passwordProcess, logged)
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g1.PUT("/settings/username", usernameProcess, logged)
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g2 := g1.Group("/admin-panel")
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{
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g2.Use(adminPermission)
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g2.GET("", adminIndex)
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g2.GET("/users", adminUsers)
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g2.POST("/users/:user/delete", adminUserDelete)
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g2.GET("/gists", adminGists)
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g2.POST("/gists/:gist/delete", adminGistDelete)
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g2.POST("/sync-fs", adminSyncReposFromFS)
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g2.POST("/sync-db", adminSyncReposFromDB)
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g2.POST("/gc-repos", adminGcRepos)
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g2.POST("/sync-previews", adminSyncGistPreviews)
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g2.POST("/reset-hooks", adminResetHooks)
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g2.POST("/index-gists", adminIndexGists)
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g2.GET("/configuration", adminConfig)
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g2.PUT("/set-config", adminSetConfig)
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}
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if config.C.HttpGit {
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e.Any("/init/*", gitHttp, gistNewPushSoftInit)
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}
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g1.GET("/all", allGists, checkRequireLogin)
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if index.Enabled() {
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g1.GET("/search", search, checkRequireLogin)
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} else {
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g1.GET("/search", allGists, checkRequireLogin)
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}
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g1.GET("/:user", allGists, checkRequireLogin)
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g1.GET("/:user/liked", allGists, checkRequireLogin)
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g1.GET("/:user/forked", allGists, checkRequireLogin)
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g3 := g1.Group("/:user/:gistname")
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{
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g3.Use(checkRequireLogin, gistInit)
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g3.GET("", gistIndex)
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g3.GET("/rev/:revision", gistIndex)
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g3.GET("/revisions", revisions)
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g3.GET("/archive/:revision", downloadZip)
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g3.POST("/visibility", toggleVisibility, logged, writePermission)
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g3.POST("/delete", deleteGist, logged, writePermission)
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g3.GET("/raw/:revision/:file", rawFile)
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g3.GET("/download/:revision/:file", downloadFile)
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g3.GET("/edit", edit, logged, writePermission)
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g3.POST("/edit", processCreate, logged, writePermission)
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g3.POST("/like", like, logged)
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g3.GET("/likes", likes)
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g3.POST("/fork", fork, logged)
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g3.GET("/forks", forks)
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g3.PUT("/checkbox", checkbox, logged, writePermission)
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}
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}
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// Git HTTP routes
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if config.C.HttpGit {
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e.Any("/:user/:gistname/*", gitHttp, gistSoftInit)
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}
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e.Any("/*", noRouteFound)
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return &Server{echo: e, dev: dev}
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}
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func (s *Server) Start() {
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addr := config.C.HttpHost + ":" + config.C.HttpPort
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log.Info().Msg("Starting HTTP server on http://" + addr)
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if err := s.echo.Start(addr); err != nil && err != http.ErrServerClosed {
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log.Fatal().Err(err).Msg("Failed to start HTTP server")
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}
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}
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func (s *Server) Stop() {
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if err := s.echo.Close(); err != nil {
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log.Fatal().Err(err).Msg("Failed to stop HTTP server")
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}
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}
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func (s *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
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s.echo.ServeHTTP(w, r)
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}
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func dataInit(next echo.HandlerFunc) echo.HandlerFunc {
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return func(ctx echo.Context) error {
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ctxValue := context.WithValue(ctx.Request().Context(), dataKey, echo.Map{})
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ctx.SetRequest(ctx.Request().WithContext(ctxValue))
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setData(ctx, "loadStartTime", time.Now())
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if err := loadSettings(ctx); err != nil {
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return errorRes(500, "Cannot read settings from database", err)
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}
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setData(ctx, "c", config.C)
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setData(ctx, "githubOauth", config.C.GithubClientKey != "" && config.C.GithubSecret != "")
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setData(ctx, "gitlabOauth", config.C.GitlabClientKey != "" && config.C.GitlabSecret != "")
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setData(ctx, "giteaOauth", config.C.GiteaClientKey != "" && config.C.GiteaSecret != "")
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setData(ctx, "oidcOauth", config.C.OIDCClientKey != "" && config.C.OIDCSecret != "" && config.C.OIDCDiscoveryUrl != "")
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return next(ctx)
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}
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}
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func locale(next echo.HandlerFunc) echo.HandlerFunc {
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return func(ctx echo.Context) error {
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// Check URL arguments
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lang := ctx.Request().URL.Query().Get("lang")
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changeLang := lang != ""
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// Then check cookies
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if len(lang) == 0 {
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cookie, _ := ctx.Request().Cookie("lang")
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if cookie != nil {
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lang = cookie.Value
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}
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}
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// Check again in case someone changes the supported language list.
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if lang != "" && !i18n.Locales.HasLocale(lang) {
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lang = ""
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changeLang = false
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}
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// 3.Then check from 'Accept-Language' header.
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if len(lang) == 0 {
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tags, _, _ := language.ParseAcceptLanguage(ctx.Request().Header.Get("Accept-Language"))
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lang = i18n.Locales.MatchTag(tags)
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}
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if changeLang {
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ctx.SetCookie(&http.Cookie{Name: "lang", Value: lang, Path: "/", MaxAge: 1<<31 - 1})
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}
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localeUsed, err := i18n.Locales.GetLocale(lang)
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if err != nil {
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return errorRes(500, "Cannot get locale", err)
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}
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setData(ctx, "localeName", localeUsed.Name)
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setData(ctx, "locale", localeUsed)
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setData(ctx, "allLocales", i18n.Locales.Locales)
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return next(ctx)
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}
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}
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func sessionInit(next echo.HandlerFunc) echo.HandlerFunc {
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return func(ctx echo.Context) error {
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sess := getSession(ctx)
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if sess.Values["user"] != nil {
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var err error
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var user *db.User
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if user, err = db.GetUserById(sess.Values["user"].(uint)); err != nil {
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sess.Values["user"] = nil
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saveSession(sess, ctx)
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setData(ctx, "userLogged", nil)
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return redirect(ctx, "/all")
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}
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if user != nil {
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setData(ctx, "userLogged", user)
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}
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return next(ctx)
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}
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setData(ctx, "userLogged", nil)
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return next(ctx)
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}
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}
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func csrfInit(next echo.HandlerFunc) echo.HandlerFunc {
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return func(ctx echo.Context) error {
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setCsrfHtmlForm(ctx)
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return next(ctx)
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}
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}
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func writePermission(next echo.HandlerFunc) echo.HandlerFunc {
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return func(ctx echo.Context) error {
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gist := getData(ctx, "gist")
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user := getUserLogged(ctx)
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if !gist.(*db.Gist).CanWrite(user) {
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return redirect(ctx, "/"+gist.(*db.Gist).User.Username+"/"+gist.(*db.Gist).Identifier())
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}
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return next(ctx)
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}
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}
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func adminPermission(next echo.HandlerFunc) echo.HandlerFunc {
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return func(ctx echo.Context) error {
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user := getUserLogged(ctx)
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if user == nil || !user.IsAdmin {
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return notFound("User not found")
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}
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return next(ctx)
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}
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}
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func logged(next echo.HandlerFunc) echo.HandlerFunc {
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return func(ctx echo.Context) error {
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user := getUserLogged(ctx)
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if user != nil {
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return next(ctx)
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}
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return redirect(ctx, "/all")
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}
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}
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func checkRequireLogin(next echo.HandlerFunc) echo.HandlerFunc {
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return func(ctx echo.Context) error {
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if user := getUserLogged(ctx); user != nil {
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return next(ctx)
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}
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require := getData(ctx, "RequireLogin")
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if require == true {
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addFlash(ctx, "You must be logged in to access gists", "error")
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return redirect(ctx, "/login")
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}
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return next(ctx)
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}
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}
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func cacheControl(next echo.HandlerFunc) echo.HandlerFunc {
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return func(c echo.Context) error {
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c.Response().Header().Set(echo.HeaderCacheControl, "public, max-age=31536000")
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return next(c)
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}
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}
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func noRouteFound(echo.Context) error {
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return notFound("Page not found")
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}
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// ---
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type Asset struct {
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File string `json:"file"`
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}
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var manifestEntries map[string]Asset
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func parseManifestEntries() {
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file, err := public.Files.Open("manifest.json")
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if err != nil {
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log.Fatal().Err(err).Msg("Failed to open manifest.json")
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}
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byteValue, err := io.ReadAll(file)
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if err != nil {
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log.Fatal().Err(err).Msg("Failed to read manifest.json")
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}
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if err = json.Unmarshal(byteValue, &manifestEntries); err != nil {
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log.Fatal().Err(err).Msg("Failed to unmarshal manifest.json")
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}
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}
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func defaultAvatar() string {
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if dev {
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return "http://localhost:16157/default.png"
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}
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return config.C.ExternalUrl + "/" + manifestEntries["default.png"].File
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}
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func asset(file string) string {
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if dev {
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return "http://localhost:16157/" + file
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}
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return config.C.ExternalUrl + "/" + manifestEntries[file].File
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}
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