fork from d7z-project/caddy-gitea-pages
This commit is contained in:
“xHuPo”
parent
50a258ea59
commit
9d86fd33c6
86 changed files with 2452 additions and 4500 deletions
246
caddyfile.go
Normal file
246
caddyfile.go
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@ -0,0 +1,246 @@
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package pages
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import (
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"fmt"
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"github.com/alecthomas/units"
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"github.com/caddyserver/caddy/v2"
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"github.com/caddyserver/caddy/v2/caddyconfig/caddyfile"
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"github.com/caddyserver/caddy/v2/caddyconfig/httpcaddyfile"
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"github.com/caddyserver/caddy/v2/modules/caddyhttp"
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"github.com/d7z-project/caddy-gitea-pages/pages"
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"github.com/pkg/errors"
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"go.uber.org/zap"
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"io"
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"net/http"
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"os"
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"strconv"
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"strings"
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"time"
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)
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func init() {
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middle := &Middleware{
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Config: &pages.MiddlewareConfig{},
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}
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caddy.RegisterModule(middle)
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httpcaddyfile.RegisterHandlerDirective("gitea", parseCaddyfile(middle))
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}
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func (m *Middleware) UnmarshalCaddyfile(d *caddyfile.Dispenser) error {
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for d.Next() {
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for n := d.Nesting(); d.NextBlock(n); {
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switch d.Val() {
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case "server":
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d.Args(&m.Config.Server)
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case "token":
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d.Args(&m.Config.Token)
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case "cache":
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remainingArgs := d.RemainingArgs()
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if len(remainingArgs) != 3 {
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return d.Errf("expected 3 argument for 'cache'; got %v", remainingArgs)
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}
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var err error
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m.Config.CacheTimeout, err = time.ParseDuration(remainingArgs[0])
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if err != nil {
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return d.Errf("invalid duration: %v", err)
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}
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m.Config.CacheRefresh, err = time.ParseDuration(remainingArgs[1])
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if err != nil {
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return d.Errf("invalid duration: %v", err)
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}
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size, err := units.ParseBase2Bytes(remainingArgs[2])
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if err != nil {
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return d.Errf("invalid CacheSize: %v", err)
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}
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m.Config.CacheMaxSize = int(size)
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case "domain":
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d.Args(&m.Config.Domain)
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case "alias":
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remainingArgs := d.RemainingArgs()
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if len(remainingArgs) == 0 {
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return d.Errf("expected 2 argument for 'alias'; got %v", remainingArgs)
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}
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if len(remainingArgs) == 1 {
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m.Config.Alias = remainingArgs[0]
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}
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if len(remainingArgs) == 2 && remainingArgs[1] == "shared" {
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m.Config.Alias = remainingArgs[0]
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m.Config.SharedAlias = true
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}
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case "headers":
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if d.NextArg() {
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return d.ArgErr()
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}
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for nesting := d.Nesting(); d.NextBlock(nesting); {
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args := []string{d.Val()}
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args = append(args, d.RemainingArgs()...)
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if len(args) != 2 {
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return d.Errf("expected 2 arguments, got %d", len(args))
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}
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if m.Config.CustomHeaders == nil {
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m.Config.CustomHeaders = make(map[string]string)
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}
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m.Config.CustomHeaders[args[0]] = args[1]
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}
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case "errors":
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if d.NextArg() {
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return d.ArgErr()
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}
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for nesting := d.Nesting(); d.NextBlock(nesting); {
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args := []string{d.Val()}
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args = append(args, d.RemainingArgs()...)
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if len(args) != 2 {
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return d.Errf("expected 2 arguments, got %d", len(args))
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}
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body, err := parseBody(args[1])
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if err != nil {
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return d.Errf("failed to parse %s: %v", args[0], err)
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}
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if m.Config.ErrorPages == nil {
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m.Config.ErrorPages = make(map[string]string)
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}
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m.Config.ErrorPages[strings.ToLower(args[0])] = body
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}
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case "redirect":
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remainingArgs := d.RemainingArgs()
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if len(remainingArgs) != 2 {
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return d.Errf("expected 2 arguments, got %d", len(remainingArgs))
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}
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code, err := strconv.Atoi(remainingArgs[1])
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if err != nil {
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return d.WrapErr(err)
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}
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m.Config.AutoRedirect = &pages.AutoRedirect{
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Enabled: true,
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Scheme: remainingArgs[0],
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Code: code,
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}
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default:
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return d.Errf("unrecognized subdirective '%s'", d.Val())
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}
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}
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}
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return nil
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}
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func parseBody(path string) (string, error) {
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fileData, err := os.ReadFile(path)
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if err == nil {
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return string(fileData), nil
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} else if strings.HasPrefix(path, "http://") ||
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strings.HasPrefix(path, "https://") {
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resp, err := http.Get(path)
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if err != nil {
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return "", err
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}
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defer resp.Body.Close()
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if resp.StatusCode != http.StatusOK {
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return "", errors.New(resp.Status)
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}
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all, err := io.ReadAll(resp.Body)
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if err != nil {
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return "", err
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}
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return string(all), nil
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}
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return "", err
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}
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func parseCaddyfile(middleware *Middleware) func(httpcaddyfile.Helper) (caddyhttp.MiddlewareHandler, error) {
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return func(h httpcaddyfile.Helper) (caddyhttp.MiddlewareHandler, error) {
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err := middleware.UnmarshalCaddyfile(h.Dispenser)
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if err != nil {
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return nil, err
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}
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if middleware.Config.ErrorPages == nil {
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middleware.Config.ErrorPages = make(map[string]string)
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}
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if middleware.Config.CustomHeaders == nil {
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middleware.Config.CustomHeaders = make(map[string]string)
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}
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if middleware.Config.AutoRedirect == nil {
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middleware.Config.AutoRedirect = &pages.AutoRedirect{
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Enabled: false,
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}
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}
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if middleware.Config.CacheRefresh <= 0 {
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middleware.Config.CacheRefresh = 1 * time.Minute
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}
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if middleware.Config.CacheTimeout <= 0 {
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middleware.Config.CacheTimeout = 3 * time.Minute
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}
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if middleware.Config.CacheMaxSize <= 0 {
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middleware.Config.CacheMaxSize = 3 * 1024 * 1024
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}
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return middleware, nil
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}
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}
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type Middleware struct {
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Config *pages.MiddlewareConfig `json:"config"`
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Logger *zap.Logger `json:"-"`
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Client *pages.PageClient `json:"-"`
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}
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func (m *Middleware) ServeHTTP(
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writer http.ResponseWriter,
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request *http.Request,
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handler caddyhttp.Handler,
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) error {
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type stackTracer interface {
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StackTrace() errors.StackTrace
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}
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err := m.Client.Route(writer, request)
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if errors.Is(err, pages.ErrorNotMatches) {
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return handler.ServeHTTP(writer, request)
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} else {
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if err != nil {
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if err, ok := err.(stackTracer); ok {
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for _, f := range err.StackTrace() {
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fmt.Printf("%+s:%d\n", f, f)
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}
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}
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}
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return err
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}
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}
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func (m *Middleware) CaddyModule() caddy.ModuleInfo {
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return caddy.ModuleInfo{
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ID: "http.handlers.gitea",
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New: func() caddy.Module {
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return new(Middleware)
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},
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}
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}
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func (m *Middleware) Validate() error {
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return m.Client.Validate()
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}
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func (m *Middleware) Cleanup() error {
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m.Logger.Info("cleaning up gitea middleware.")
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return m.Client.Close()
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}
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func (m *Middleware) Provision(ctx caddy.Context) error {
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var err error
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m.Logger = ctx.Logger() // g.Logger is a *zap.Logger
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m.Client, err = pages.NewPageClient(
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m.Config,
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m.Logger,
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)
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if err != nil {
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return err
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}
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return nil
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}
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var (
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_ caddy.Provisioner = (*Middleware)(nil)
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_ caddy.CleanerUpper = (*Middleware)(nil)
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_ caddy.Validator = (*Middleware)(nil)
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_ caddyhttp.MiddlewareHandler = (*Middleware)(nil)
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_ caddyfile.Unmarshaler = (*Middleware)(nil)
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)
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