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import ( "bytes" "context" "crypto/hmac" "crypto/sha256" "encoding/hex" "errors" "fmt" "html" "html/template" "log" "math" "math/rand" "net/url" "path/filepath" "reflect" "strings" "time"
"github.com/alecthomas/chroma/v2" chromahtml "github.com/alecthomas/chroma/v2/formatters/html" "github.com/alecthomas/chroma/v2/lexers" "github.com/alecthomas/chroma/v2/styles" "github.com/bluesky-social/indigo/atproto/syntax" "github.com/dustin/go-humanize" "github.com/dustin/go-humanize/english" "github.com/go-enry/go-enry/v2" "github.com/yuin/goldmark" emoji "github.com/yuin/goldmark-emoji" "tangled.org/core/appview/cache" "tangled.org/core/appview/db" "tangled.org/core/appview/models" "tangled.org/core/appview/oauth" "tangled.org/core/appview/pages/markup" "tangled.org/core/appview/pages/markup/sanitizer" "tangled.org/core/appview/pages/repoinfo" "tangled.org/core/crypto" "tangled.org/core/idresolver" "tangled.org/core/orm" "tangled.org/core/types")
type tab map[string]string
func (p *Pages) ownerSlashRepo(repo *models.Repo) string { ownerId, err := p.resolver.ResolveIdent(context.Background(), repo.Did) if err != nil { return repo.RepoIdentifier() } handle := ownerId.Handle if handle != "" && !handle.IsInvalidHandle() { return string(handle) + "/" + repo.Slug() } return repo.RepoIdentifier()}
func (p *Pages) funcMap() template.FuncMap { return template.FuncMap{ "split": func(s string) []string { return strings.Split(s, "\n") }, "capitalize": func(s string) string { if s == "" { return s } return strings.ToUpper(s[:1]) + s[1:] }, "trimPrefix": func(s, prefix string) string { return strings.TrimPrefix(s, prefix) }, "join": func(elems []string, sep string) string { return strings.Join(elems, sep) }, "contains": func(s string, target string) bool { return strings.Contains(s, target) }, "stripPort": func(hostname string) string { if strings.Contains(hostname, ":") { return strings.Split(hostname, ":")[0] } return hostname }, "mapContains": func(m any, key any) bool { mapValue := reflect.ValueOf(m) if mapValue.Kind() != reflect.Map { return false } keyValue := reflect.ValueOf(key) return mapValue.MapIndex(keyValue).IsValid() }, "resolve": func(s string) string { return p.DisplayHandle(context.Background(), s) }, "resolver": func() *idresolver.Resolver { return p.resolver }, "primaryHandle": func(s string) string { return primaryHandle(p.resolver, s) }, "resolvePds": func(s string) string { identity, err := p.resolver.ResolveIdent(context.Background(), s) if err != nil { return "" } return identity.PDSEndpoint() }, "ownerSlashRepo": p.ownerSlashRepo, "pipelineCommitPath": func(repoInfo repoinfo.RepoInfo, pipeline types.Pipeline) string { sha := pipeline.Sha() if sourceRepo := pipeline.SourceRepo(); sourceRepo != nil { if repo, err := db.GetRepoByDid(p.db, *sourceRepo); err == nil && repo != nil { return "/" + p.ownerSlashRepo(repo) + "/commit/" + sha } } return "/" + repoInfo.FullName() + "/commit/" + sha }, "pipelineSourceLabel": func(pipeline types.Pipeline) string { branch := pipeline.Trigger().PRSourceBranch() if branch == "" { return branch } sourceRepo := pipeline.SourceRepo() if sourceRepo == nil { return branch } repo, err := db.GetRepoByDid(p.db, *sourceRepo) if err != nil || repo == nil { return branch } return p.ownerSlashRepo(repo) + "/" + branch }, "pipelinePullPath": func(pipeline types.Pipeline) string { pullAtStr := pipeline.Trigger().PRUri() if pullAtStr == "" { return "" } // GetPull's reverse-mapping already populates pull.Repo pull, err := db.GetPull(context.Background(), p.db, orm.FilterEq("at_uri", pullAtStr)) if err != nil || pull == nil || pull.Repo == nil { return "" } return fmt.Sprintf("/%s/pulls/%d", p.ownerSlashRepo(pull.Repo), pull.PullId) }, "truncateAt30": func(s string) string { if len(s) <= 30 { return s } return s[:30] + "…" }, // short prefix of a commit hash or jj change id, safe on short input "shortId": shortId, "splitOn": func(s, sep string) []string { return strings.Split(s, sep) }, "string": func(v any) string { return fmt.Sprint(v) }, "int64": func(a int) int64 { return int64(a) }, "add": func(a, b int) int { return a + b }, "now": func() time.Time { return time.Now() }, // the absolute state of go templates "add64": func(a, b int64) int64 { return a + b }, "sub": func(a, b int) int { return a - b }, "mul": func(a, b int) int { return a * b }, "div": func(a, b int) int { return a / b }, "mod": func(a, b int) int { return a % b }, "randInt": func(bound int) int { return rand.Intn(bound) }, "f64": func(a int) float64 { return float64(a) }, "addf64": func(a, b float64) float64 { return a + b }, "subf64": func(a, b float64) float64 { return a - b }, "mulf64": func(a, b float64) float64 { return a * b }, "divf64": func(a, b float64) float64 { if b == 0 { return 0 } return a / b }, "negf64": func(a float64) float64 { return -a }, "cond": func(cond any, a, b string) string { if cond == nil { return b }
if boolean, ok := cond.(bool); boolean && ok { return a }
return b }, "assoc": func(values ...string) ([][]string, error) { if len(values)%2 != 0 { return nil, fmt.Errorf("invalid assoc call, must have an even number of arguments") } pairs := make([][]string, 0) for i := 0; i < len(values); i += 2 { pairs = append(pairs, []string{values[i], values[i+1]}) } return pairs, nil }, "append": func(s []any, values ...any) []any { s = append(s, values...) return s }, // scale numerics over 1000 to 1k "scaleFmt": func(n any) string { var v float64 switch x := n.(type) { case int: v = float64(x) case int32: v = float64(x) case int64: v = float64(x) case float64: v = x default: return fmt.Sprintf("%v", n) } if v < 1000 { return fmt.Sprintf("%d", int(v)) } k := v / 1000 if k < 10 { return fmt.Sprintf("%.1fk", k) } return fmt.Sprintf("%dk", int(k)) }, "commaFmt": humanize.Comma, "plural": english.Plural, "relTimeFmt": humanize.Time, "shortRelTimeFmt": func(t time.Time) string { if t.Unix() == 0 { return "at the beginning of time" } return humanize.CustomRelTime(t, time.Now(), "", "", []humanize.RelTimeMagnitude{ {D: time.Second, Format: "now", DivBy: time.Second}, {D: 2 * time.Second, Format: "1s %s", DivBy: 1}, {D: time.Minute, Format: "%ds %s", DivBy: time.Second}, {D: 2 * time.Minute, Format: "1min %s", DivBy: 1}, {D: time.Hour, Format: "%dmin %s", DivBy: time.Minute}, {D: 2 * time.Hour, Format: "1hr %s", DivBy: 1}, {D: humanize.Day, Format: "%dhrs %s", DivBy: time.Hour}, {D: 2 * humanize.Day, Format: "1d %s", DivBy: 1}, {D: 20 * humanize.Day, Format: "%dd %s", DivBy: humanize.Day}, {D: 8 * humanize.Week, Format: "%dw %s", DivBy: humanize.Week}, {D: humanize.Year, Format: "%dmo %s", DivBy: humanize.Month}, {D: 18 * humanize.Month, Format: "1y %s", DivBy: 1}, {D: 2 * humanize.Year, Format: "2y %s", DivBy: 1}, {D: humanize.LongTime, Format: "%dy %s", DivBy: humanize.Year}, {D: math.MaxInt64, Format: "a long while %s", DivBy: 1}, }) }, "isFutureTime": func(t time.Time) bool { return t.After(time.Now()) }, "shortTimeFmt": func(t time.Time) string { return t.Format("Jan 2, 2006") }, "longTimeFmt": func(t time.Time) string { return t.Format("Jan 2, 2006, 3:04 PM MST") }, "iso8601DateTimeFmt": func(t time.Time) string { return t.Format("2006-01-02T15:04:05-07:00") }, "iso8601DurationFmt": func(duration time.Duration) string { days := int64(duration.Hours() / 24) hours := int64(math.Mod(duration.Hours(), 24)) minutes := int64(math.Mod(duration.Minutes(), 60)) seconds := int64(math.Mod(duration.Seconds(), 60)) return fmt.Sprintf("P%dD%dH%dM%dS", days, hours, minutes, seconds) }, "durationFmt": func(duration time.Duration) string { return durationFmt(duration, [4]string{"d", "h", "m", "s"}) }, "longDurationFmt": func(duration time.Duration) string { return durationFmt(duration, [4]string{"days", "hours", "minutes", "seconds"}) }, "byteFmt": humanize.Bytes, "length": func(slice any) int { v := reflect.ValueOf(slice) if v.Kind() == reflect.Slice || v.Kind() == reflect.Array { return v.Len() } return 0 }, "splitN": func(s, sep string, n int) []string { return strings.SplitN(s, sep, n) }, "escapeHtml": func(s string) template.HTML { if s == "" { return template.HTML("<br>") } return template.HTML(s) }, "unescapeHtml": func(s string) string { return html.UnescapeString(s) }, "nl2br": func(text string) template.HTML { return template.HTML(strings.ReplaceAll(template.HTMLEscapeString(text), "\n", "<br>")) }, "unwrapText": func(text string) string { paragraphs := strings.Split(text, "\n\n")
for i, p := range paragraphs { lines := strings.Split(p, "\n") paragraphs[i] = strings.Join(lines, " ") }
return strings.Join(paragraphs, "\n\n") }, "sequence": func(n int) []struct{} { return make([]struct{}, n) }, // take atmost N items from this slice "take": func(slice any, n int) any { v := reflect.ValueOf(slice) if v.Kind() != reflect.Slice && v.Kind() != reflect.Array { return nil } if v.Len() == 0 { return nil } return v.Slice(0, min(n, v.Len())).Interface() }, "markdown": func(text string) template.HTML { rctx := p.rctx.Clone() rctx.RendererType = markup.RendererTypeDefault htmlString := rctx.RenderMarkdown(text) sanitized := sanitizer.SanitizeDefault(htmlString) return template.HTML(sanitized) }, "description": func(text string) template.HTML { rctx := p.rctx.Clone() rctx.RendererType = markup.RendererTypeDefault htmlString := rctx.RenderMarkdownWith(text, goldmark.New( goldmark.WithExtensions( emoji.Emoji, ), )) sanitized := sanitizer.SanitizeDescription(htmlString) return template.HTML(sanitized) }, "readme": func(text string) template.HTML { rctx := p.rctx.Clone() rctx.RendererType = markup.RendererTypeRepoMarkdown htmlString := rctx.RenderMarkdown(text) sanitized := sanitizer.SanitizeDefault(htmlString) return template.HTML(sanitized) }, "code": func(content, path string) string { var style *chroma.Style = styles.Get("catpuccin-latte") formatter := chromahtml.New( chromahtml.InlineCode(false), chromahtml.WithLineNumbers(true), chromahtml.WithLinkableLineNumbers(true, "L"), chromahtml.Standalone(false), chromahtml.WithClasses(true), )
lexer := lexers.Get(filepath.Base(path)) if lexer == nil { if firstLine, _, ok := strings.Cut(content, "\n"); ok && strings.HasPrefix(firstLine, "#!") { // extract interpreter from shebang (handles "#!/usr/bin/env nu", "#!/usr/bin/nu", etc.) fields := strings.Fields(firstLine[2:]) if len(fields) > 0 { interp := filepath.Base(fields[len(fields)-1]) lexer = lexers.Get(interp) } } } if lexer == nil { lexer = lexers.Analyse(content) } if lexer == nil { lexer = lexers.Fallback }
iterator, err := lexer.Tokenise(nil, content) if err != nil { p.logger.Error("chroma tokenize", "err", "err") return "" }
var code bytes.Buffer err = formatter.Format(&code, style, iterator) if err != nil { p.logger.Error("chroma format", "err", "err") return "" }
return code.String() }, "trimUriScheme": func(text string) string { text = strings.TrimPrefix(text, "https://") text = strings.TrimPrefix(text, "http://") return text }, "isNil": func(t any) bool { // returns false for other "zero" values return t == nil }, "hasPrefix": strings.HasPrefix, "list": func(args ...any) []any { return args }, "dict": func(values ...any) (map[string]any, error) { if len(values)%2 != 0 { return nil, errors.New("invalid dict call") } dict := make(map[string]any, len(values)/2) for i := 0; i < len(values); i += 2 { key, ok := values[i].(string) if !ok { return nil, errors.New("dict keys must be strings") } dict[key] = values[i+1] } return dict, nil }, "queryParams": func(params ...any) (url.Values, error) { if len(params)%2 != 0 { return nil, errors.New("invalid queryParams call") } vals := make(url.Values, len(params)/2) for i := 0; i < len(params); i += 2 { key, ok := params[i].(string) if !ok { return nil, errors.New("queryParams keys must be strings") } v, ok := params[i+1].(string) if !ok { return nil, errors.New("queryParams values must be strings") } vals.Add(key, v) } return vals, nil }, "deref": func(v any) any { val := reflect.ValueOf(v) if val.Kind() == reflect.Pointer && !val.IsNil() { return val.Elem().Interface() } return nil }, "i": func(name string, classes ...string) template.HTML { data, err := p.icon(name, classes) if err != nil { log.Printf("icon %s does not exist", name) data, _ = p.icon("airplay", classes) } return template.HTML(data) }, "cssContentHash": p.CssContentHash, "pathEscape": func(s string) string { return url.PathEscape(s) }, "pathUnescape": func(s string) string { u, _ := url.PathUnescape(s) return u }, "safeUrl": func(s string) template.URL { return template.URL(s) }, "tinyAvatar": func(handle string) string { return p.AvatarUrl(handle, "tiny") }, "fullAvatar": func(handle string) string { return p.AvatarUrl(handle, "") }, "placeholderAvatar": func(size string) template.HTML { sizeClass := "size-6" iconSize := "size-4" switch size { case "tiny": sizeClass = "size-6" iconSize = "size-4" case "small": sizeClass = "size-8" iconSize = "size-5" default: sizeClass = "size-12" iconSize = "size-8" } icon, _ := p.icon("user-round", []string{iconSize, "text-gray-400", "dark:text-gray-500"}) return template.HTML(fmt.Sprintf(`<div class="%s rounded-full bg-gray-200 dark:bg-gray-700 flex items-center justify-center flex-shrink-0">%s</div>`, sizeClass, icon)) }, "profileAvatarUrl": func(profile *models.Profile, size string) string { if profile != nil { return p.AvatarUrl(profile.Did, size) } return "" }, "langColor": enry.GetColor, "reverse": func(s any) any { if s == nil { return nil }
v := reflect.ValueOf(s)
if v.Kind() != reflect.Slice { return s }
length := v.Len() reversed := reflect.MakeSlice(v.Type(), length, length)
for i := range length { reversed.Index(i).Set(v.Index(length - 1 - i)) }
return reversed.Interface() }, "normalizeForHtmlId": func(s string) string { normalized := strings.ReplaceAll(s, ":", "_") normalized = strings.ReplaceAll(normalized, ".", "_") return normalized }, "sshFingerprint": func(pubKey string) string { fp, err := crypto.SSHFingerprint(pubKey) if err != nil { return "error" } return fp }, "otherAccounts": func(activeDid string, accounts []oauth.AccountInfo) []oauth.AccountInfo { result := make([]oauth.AccountInfo, 0, len(accounts)) for _, acc := range accounts { if acc.Did != activeDid { result = append(result, acc) } } return result }, "isGenerated": func(path string) bool { return enry.IsGenerated(path, nil) }, // NOTE(boltless): I know... I hate doing this too "asReactionMapMap": func(dict any) map[syntax.ATURI]map[models.ReactionKind]models.ReactionDisplayData { if dict == nil { return make(map[syntax.ATURI]map[models.ReactionKind]models.ReactionDisplayData) } m, _ := dict.(map[syntax.ATURI]map[models.ReactionKind]models.ReactionDisplayData) return m }, "asReactionStatusMapMap": func(dict any) map[syntax.ATURI]map[models.ReactionKind]bool { if dict == nil { log.Println("returning empty map") return make(map[syntax.ATURI]map[models.ReactionKind]bool) } m, _ := dict.(map[syntax.ATURI]map[models.ReactionKind]bool) return m }, // constant values used to define a template "const": func() map[string]any { return map[string]any{ "OrderedReactionKinds": models.OrderedReactionKinds, // would be great to have ordered maps right about now "UserSettingsTabs": []tab{ {"Name": "profile", "Label": "Profile", "Icon": "user"}, {"Name": "keys", "Label": "Keys", "Icon": "key"}, {"Name": "emails", "Label": "Emails", "Icon": "mail"}, {"Name": "notifications", "Label": "Notifications", "Icon": "bell"}, {"Name": "knots", "Label": "Knots", "Icon": "volleyball"}, {"Name": "spindles", "Label": "Spindles", "Icon": "spool"}, {"Name": "sites", "Label": "Sites", "Icon": "globe"}, }, "RepoSettingsTabs": []tab{ {"Name": "general", "Label": "General", "Icon": "sliders-horizontal"}, {"Name": "access", "Label": "Access", "Icon": "users"}, {"Name": "pipelines", "Label": "Pipelines", "Icon": "layers-2"}, {"Name": "hooks", "Label": "Hooks", "Icon": "webhook"}, {"Name": "sites", "Label": "Sites", "Icon": "globe"}, }, "PdsUserDomain": p.pdsCfg.UserDomain, } }, "did": func(s string) syntax.DID { // cast to DID return syntax.DID(s) }, }}
func shortId(s string) string { if len(s) <= 8 { return s } return s[:8]}
func primaryHandle(r *idresolver.Resolver, s string) string { identity, err := r.ResolveIdent(context.Background(), s) if err != nil || identity.Handle.IsInvalidHandle() { return "handle.invalid" } return identity.Handle.String()}
func (p *Pages) DisplayHandle(ctx context.Context, did string) string { if p.db != nil { if h := cache.LookupPreferredHandle(ctx, p.rdb, p.db, did); h != "" { return h } } if id, err := p.resolver.ResolveIdent(ctx, did); err == nil && !id.Handle.IsInvalidHandle() { return id.Handle.String() } return did}
func (p *Pages) AvatarUrl(actor, size string) string { actor = strings.TrimPrefix(actor, "@")
identity, err := p.resolver.ResolveIdent(context.Background(), actor) var did string if err != nil { did = actor } else { did = identity.DID.String() }
secret := p.avatar.SharedSecret if secret == "" { return "" } h := hmac.New(sha256.New, []byte(secret)) h.Write([]byte(did)) signature := hex.EncodeToString(h.Sum(nil))
// Get avatar CID for cache busting version := "" if p.db != nil { profile, err := db.GetProfile(p.db, did) if err == nil && profile != nil && profile.Avatar != "" { // Use first 8 chars of avatar CID as version if len(profile.Avatar) > 8 { version = profile.Avatar[:8] } else { version = profile.Avatar } } }
baseUrl := fmt.Sprintf("%s/%s/%s", p.avatar.Host, signature, did) if size != "" { if version != "" { return fmt.Sprintf("%s?size=%s&v=%s", baseUrl, size, version) } return fmt.Sprintf("%s?size=%s", baseUrl, size) } if version != "" { return fmt.Sprintf("%s?v=%s", baseUrl, version) }
return baseUrl}
func (p *Pages) icon(name string, classes []string) (template.HTML, error) { iconPath := filepath.Join("static", "icons", name)
if filepath.Ext(name) == "" { iconPath += ".svg" }
data, err := Files.ReadFile(iconPath) if err != nil { return "", fmt.Errorf("icon %s not found: %w", name, err) }
// Convert SVG data to string svgStr := string(data)
svgTagEnd := strings.Index(svgStr, ">") if svgTagEnd == -1 { return "", fmt.Errorf("invalid SVG format for icon %s", name) }
classTag := ` class="` + strings.Join(classes, " ") + `"`
modifiedSVG := svgStr[:svgTagEnd] + classTag + svgStr[svgTagEnd:] return template.HTML(modifiedSVG), nil}
func durationFmt(duration time.Duration, names [4]string) string { days := int64(duration.Hours() / 24) hours := int64(math.Mod(duration.Hours(), 24)) minutes := int64(math.Mod(duration.Minutes(), 60)) seconds := int64(math.Mod(duration.Seconds(), 60))
chunks := []struct { name string amount int64 }{ {names[0], days}, {names[1], hours}, {names[2], minutes}, {names[3], seconds}, }
parts := []string{}
for _, chunk := range chunks { if chunk.amount != 0 { parts = append(parts, fmt.Sprintf("%d%s", chunk.amount, chunk.name)) } }
return strings.Join(parts, " ")}