feat: images

.air.toml

@@ -43,6 +43,11 @@ tmp_dir = "tmp"
 [misc]
   clean_on_exit = false
 
+[env]
+  TEST_PW = "test"
+  VALKEY_ADDR = "127.0.0.1:6379"
+  VALKEY_PASSWORD = "valkey"
+
 [screen]
   clear_on_rebuild = false
   keep_scroll = true

.gitignore

@@ -1,5 +1,6 @@
 .DS_Store
 node_modules
+/tmp
 /build
 /.svelte-kit
 /package

docker-compose.yml

@@ -0,0 +1,12 @@
+services:
+  valkey:
+    image: valkey/valkey:8
+    restart: always
+    ports:
+      - "6379:6379"
+    command: valkey-server --requirepass "valkey"
+    healthcheck:
+      test: ["CMD", "valkey-cli", "-a", "valkey", "ping"]
+      interval: 5s
+      timeout: 5s
+      retries: 5

go.mod

@@ -4,7 +4,11 @@ go 1.25.7
 
 tool github.com/a-h/templ/cmd/templ
 
-require github.com/a-h/templ v0.3.977
+require (
+	github.com/a-h/templ v0.3.977
+	github.com/studio-b12/gowebdav v0.12.0
+	github.com/valkey-io/valkey-go v1.0.72
+)
 
 require (
 	github.com/a-h/parse v0.0.0-20250122154542-74294addb73e // indirect
@@ -13,14 +17,12 @@ require (
 	github.com/cli/browser v1.3.0 // indirect
 	github.com/fatih/color v1.16.0 // indirect
 	github.com/fsnotify/fsnotify v1.7.0 // indirect
-	github.com/klauspost/compress v1.18.4 // indirect
 	github.com/mattn/go-colorable v0.1.13 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/natefinch/atomic v1.0.1 // indirect
-	github.com/studio-b12/gowebdav v0.12.0 // indirect
 	golang.org/x/mod v0.26.0 // indirect
-	golang.org/x/net v0.42.0 // indirect
+	golang.org/x/net v0.48.0 // indirect
 	golang.org/x/sync v0.16.0 // indirect
-	golang.org/x/sys v0.34.0 // indirect
+	golang.org/x/sys v0.39.0 // indirect
 	golang.org/x/tools v0.35.0 // indirect
 )

go.sum

@@ -14,10 +14,8 @@ github.com/fatih/color v1.16.0 h1:zmkK9Ngbjj+K0yRhTVONQh1p/HknKYSlNT+vZCzyokM=
 github.com/fatih/color v1.16.0/go.mod h1:fL2Sau1YI5c0pdGEVCbKQbLXB6edEj1ZgiY4NijnWvE=
 github.com/fsnotify/fsnotify v1.7.0 h1:8JEhPFa5W2WU7YfeZzPNqzMP6Lwt7L2715Ggo0nosvA=
 github.com/fsnotify/fsnotify v1.7.0/go.mod h1:40Bi/Hjc2AVfZrqy+aj+yEI+/bRxZnMJyTJwOpGvigM=
-github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
+github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
-github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
-github.com/klauspost/compress v1.18.4 h1:RPhnKRAQ4Fh8zU2FY/6ZFDwTVTxgJ/EMydqSTzE9a2c=
-github.com/klauspost/compress v1.18.4/go.mod h1:R0h/fSBs8DE4ENlcrlib3PsXS61voFxhIs2DeRhCvJ4=
 github.com/mattn/go-colorable v0.1.13 h1:fFA4WZxdEF4tXPZVKMLwD8oUnCTTo08duU7wxecdEvA=
 github.com/mattn/go-colorable v0.1.13/go.mod h1:7S9/ev0klgBDR4GtXTXX8a3vIGJpMovkB8vQcUbaXHg=
 github.com/mattn/go-isatty v0.0.16/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=
@@ -25,22 +23,30 @@ github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWE
 github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
 github.com/natefinch/atomic v1.0.1 h1:ZPYKxkqQOx3KZ+RsbnP/YsgvxWQPGxjC0oBt2AhwV0A=
 github.com/natefinch/atomic v1.0.1/go.mod h1:N/D/ELrljoqDyT3rZrsUmtsuzvHkeB/wWjHV22AZRbM=
+github.com/onsi/gomega v1.38.3 h1:eTX+W6dobAYfFeGC2PV6RwXRu/MyT+cQguijutvkpSM=
+github.com/onsi/gomega v1.38.3/go.mod h1:ZCU1pkQcXDO5Sl9/VVEGlDyp+zm0m1cmeG5TOzLgdh4=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
 github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
 github.com/studio-b12/gowebdav v0.12.0 h1:kFRtQECt8jmVAvA6RHBz3geXUGJHUZA6/IKpOVUs5kM=
 github.com/studio-b12/gowebdav v0.12.0/go.mod h1:bHA7t77X/QFExdeAnDzK6vKM34kEZAcE1OX4MfiwjkE=
+github.com/valkey-io/valkey-go v1.0.72 h1:iRWt1hJyOchcEgbHSkRY3aKkcBudxvMaVMsmxuYxuxE=
+github.com/valkey-io/valkey-go v1.0.72/go.mod h1:VGhZ6fs68Qrn2+OhH+6waZH27bjpgQOiLyUQyXuYK5k=
+go.yaml.in/yaml/v3 v3.0.4 h1:tfq32ie2Jv2UxXFdLJdh3jXuOzWiL1fo0bu/FbuKpbc=
+go.yaml.in/yaml/v3 v3.0.4/go.mod h1:DhzuOOF2ATzADvBadXxruRBLzYTpT36CKvDb3+aBEFg=
 golang.org/x/mod v0.26.0 h1:EGMPT//Ezu+ylkCijjPc+f4Aih7sZvaAr+O3EHBxvZg=
 golang.org/x/mod v0.26.0/go.mod h1:/j6NAhSk8iQ723BGAUyoAcn7SlD7s15Dp9Nd/SfeaFQ=
-golang.org/x/net v0.42.0 h1:jzkYrhi3YQWD6MLBJcsklgQsoAcw89EcZbJw8Z614hs=
+golang.org/x/net v0.48.0 h1:zyQRTTrjc33Lhh0fBgT/H3oZq9WuvRR5gPC70xpDiQU=
-golang.org/x/net v0.42.0/go.mod h1:FF1RA5d3u7nAYA4z2TkclSCKh68eSXtiFwcWQpPXdt8=
+golang.org/x/net v0.48.0/go.mod h1:+ndRgGjkh8FGtu1w1FGbEC31if4VrNVMuKTgcAAnQRY=
 golang.org/x/sync v0.16.0 h1:ycBJEhp9p4vXvUZNszeOq0kGTPghopOL8q0fq3vstxw=
 golang.org/x/sync v0.16.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
 golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.34.0 h1:H5Y5sJ2L2JRdyv7ROF1he/lPdvFsd0mJHFw2ThKHxLA=
+golang.org/x/sys v0.39.0 h1:CvCKL8MeisomCi6qNZ+wbb0DN9E5AATixKsvNtMoMFk=
-golang.org/x/sys v0.34.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
+golang.org/x/sys v0.39.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+golang.org/x/text v0.32.0 h1:ZD01bjUt1FQ9WJ0ClOL5vxgxOI/sVCNgX1YtKwcY0mU=
+golang.org/x/text v0.32.0/go.mod h1:o/rUWzghvpD5TXrTIBuJU77MTaN0ljMWE47kxGJQ7jY=
 golang.org/x/tools v0.35.0 h1:mBffYraMEf7aa0sB+NuKnuCy8qI/9Bughn8dC2Gu5r0=
 golang.org/x/tools v0.35.0/go.mod h1:NKdj5HkL/73byiZSJjqJgKn3ep7KjFkBOkR/Hps3VPw=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=

internal/components/images/controller.go

@@ -0,0 +1,49 @@
+package images
+
+import (
+	"bytes"
+	"context"
+	"errors"
+	"fmt"
+	"io"
+	"strings"
+)
+
+var ErrNotAnImage = errors.New("not an image")
+
+func (s *Service) getMime(path string) (mimeType string, err error) {
+	info, err := s.fs.Stat(path)
+	if err != nil {
+		err = fmt.Errorf("image file info could not be fetched")
+	}
+
+	if mimer, ok := info.(interface{ ContentType() string }); ok {
+		mimeType = mimer.ContentType()
+	}
+
+	return
+}
+
+func (s *Service) GetImage(ctx context.Context, uid string) (img io.Reader, mimeType string, err error) {
+	path, err := PathFromUID(uid)
+	if err != nil {
+		err = fmt.Errorf("could not get path: %w", err)
+		return
+	}
+	mimeType, err = s.getMime(path)
+	if err != nil {
+		return
+	}
+
+	if !strings.HasPrefix(mimeType, "image") {
+		err = ErrNotAnImage
+		return
+	}
+
+	file, err := s.fs.Read(path)
+	if err != nil {
+		err = fmt.Errorf("image file could not be fetched")
+	}
+
+	return bytes.NewBuffer(file), mimeType, err
+}

internal/components/images/resorce.go

@@ -0,0 +1,18 @@
+package images
+
+import "os"
+
+type Service struct {
+	fs fileSystem
+}
+
+func New(fs fileSystem) *Service {
+	return &Service{
+		fs: fs,
+	}
+}
+
+type fileSystem interface {
+	Read(path string) ([]byte, error)
+	Stat(path string) (os.FileInfo, error)
+}

internal/components/page/page.go

@@ -13,6 +13,7 @@ import (
 
 	"git.schreifuchs.ch/schreifuchs/schreifuchs.ch/internal/components/images"
 	"git.schreifuchs.ch/schreifuchs/schreifuchs.ch/internal/components/translate"
+	"git.schreifuchs.ch/schreifuchs/schreifuchs.ch/internal/filesystem"
 	"github.com/studio-b12/gowebdav"
 )
 
@@ -34,25 +35,28 @@ func (s *Service) getPageHeaders(ctx context.Context, uid string) (page PageHead
 
 	lang := translate.Language(ctx)
 
-	var coverImage *gowebdav.File
+	var coverImage filesystem.FileInfo
-	var contentMD *gowebdav.File
+	var contentMD filesystem.FileInfo
 
 	for _, f := range info {
-		file := f.(gowebdav.File)
+		file, ok := f.(filesystem.FileInfo)
+		if !ok {
+			continue
+		}
 
 		if strings.HasPrefix(file.ContentType(), "image/") {
-			coverImage = &file
+			coverImage = file
 		}
 
 		parts := strings.Split(file.Name(), ".")
 
 		// fallback content
 		if contentMD == nil && len(parts) == 2 && parts[1] == "md" {
-			contentMD = &file
+			contentMD = file
 		}
 		// language content
 		if len(parts) == 3 && parts[1] == lang && parts[2] == "md" {
-			contentMD = &file
+			contentMD = file
 		}
 	}
 
@@ -71,7 +75,9 @@ func (s *Service) getPageHeaders(ctx context.Context, uid string) (page PageHead
 
 	page.UID = uid
 	page.Title = title[1]
+	if coverImage != nil {
 		page.CoverImageUID, err = images.UIDFromPath(coverImage.Path())
+	}
 
 	return
 }

internal/components/page/resource.go

@@ -3,14 +3,14 @@ package page
 import (
 	"log/slog"
 
-	"github.com/studio-b12/gowebdav"
+	"git.schreifuchs.ch/schreifuchs/schreifuchs.ch/internal/filesystem"
 )
 
 type Service struct {
-	fs *gowebdav.Client
+	fs filesystem.FS
 }
 
-func New(fs *gowebdav.Client) *Service {
+func New(fs filesystem.FS) *Service {
 	info, err := fs.ReadDir("/")
 	if err != nil {
 		slog.Error("could not read dir", "err", err)

internal/filesystem/cache.go

@@ -0,0 +1,162 @@
+package filesystem
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"log/slog"
+	"os"
+	"sync/atomic"
+	"time"
+
+	"github.com/valkey-io/valkey-go"
+)
+
+// CachedClient wraps a FileSystem implementation with Valkey caching.
+type CachedClient struct {
+	impl        FS
+	client      valkey.Client
+	refreshTime time.Duration
+	hits        atomic.Int64
+	misses      atomic.Int64
+	readDirHits atomic.Int64
+	readHits    atomic.Int64
+}
+
+// NewCachedClient creates a new CachedClient.
+func NewCachedClient(impl FS, client valkey.Client, ttl time.Duration) *CachedClient {
+	return &CachedClient{
+		impl:        impl,
+		client:      client,
+		refreshTime: ttl,
+	}
+}
+
+func (c *CachedClient) ReadDir(path string) ([]os.FileInfo, error) {
+	key := fmt.Sprintf("webdav:readdir:%s", path)
+	ctx := context.Background()
+
+	// Try cache
+	val, err := c.client.Do(ctx, c.client.B().Get().Key(key).Build()).ToString()
+	if err == nil && val != "" {
+		var cached []File
+		if err := json.Unmarshal([]byte(val), &cached); err == nil {
+			c.readDirHits.Add(1)
+			c.hits.Add(1)
+			slog.Debug("cache hit", "key", key)
+			infos := make([]os.FileInfo, len(cached))
+			for i, f := range cached {
+				infos[i] = f
+			}
+			return infos, nil
+		}
+	}
+
+	// Cache miss
+	c.misses.Add(1)
+	slog.Debug("cache miss", "key", key)
+	infos, err := c.impl.ReadDir(path)
+	if err != nil {
+		return nil, err
+	}
+
+	// Serialize and cache
+	cached := make([]File, 0, len(infos))
+	for _, info := range infos {
+		// Type assert to ensure we capture ContentType and Path
+		if fi, ok := info.(FileInfo); ok {
+			cached = append(cached, File{
+				name:        fi.Name(),
+				size:        fi.Size(),
+				mode:        fi.Mode(),
+				modTime:     fi.ModTime(),
+				isDir:       fi.IsDir(),
+				contentType: fi.ContentType(),
+				path:        fi.Path(),
+			})
+		} else {
+			// Fallback if underlying impl returns generic os.FileInfo
+			cached = append(cached, File{
+				name:    info.Name(),
+				size:    info.Size(),
+				mode:    info.Mode(),
+				modTime: info.ModTime(),
+				isDir:   info.IsDir(),
+			})
+		}
+	}
+
+	bytes, err := json.Marshal(cached)
+	if err == nil {
+		c.client.Do(ctx, c.client.B().Set().Key(key).Value(string(bytes)).Ex(c.refreshTime).Build())
+	}
+
+	return infos, nil
+}
+
+func (c *CachedClient) Read(path string) ([]byte, error) {
+	key := fmt.Sprintf("webdav:read:%s", path)
+	ctx := context.Background()
+
+	// Try cache
+	val, err := c.client.Do(ctx, c.client.B().Get().Key(key).Build()).AsBytes()
+	if err == nil && len(val) > 0 {
+		c.readHits.Add(1)
+		c.hits.Add(1)
+		slog.Debug("cache hit", "key", key)
+		return val, nil
+	}
+
+	// Cache miss
+	c.misses.Add(1)
+	slog.Debug("cache miss", "key", key)
+	data, err := c.impl.Read(path)
+	if err != nil {
+		return nil, err
+	}
+
+	// Cache
+	c.client.Do(ctx, c.client.B().Set().Key(key).Value(valkey.BinaryString(data)).Ex(c.refreshTime).Build())
+
+	return data, nil
+}
+
+func (c *CachedClient) Stat(path string) (info os.FileInfo, err error) {
+	key := fmt.Sprintf("webdav:stat:%s", path)
+	ctx := context.Background()
+
+	// Try cache
+	val, err := c.client.Do(ctx, c.client.B().Get().Key(key).Build()).ToString()
+	if err == nil && val != "" {
+		if err := json.Unmarshal([]byte(val), &info); err == nil {
+			c.hits.Add(1)
+			slog.Debug("cache hit", "key", key)
+
+			return info, nil
+		}
+	}
+
+	// Cache miss
+	c.misses.Add(1)
+	slog.Debug("cache miss", "key", key)
+	fileInfo, err := c.impl.Stat(path)
+	if err != nil {
+		return
+	}
+
+	// Serialize and cache
+	// Type assert to ensure we capture ContentType and Path
+	info = ParseToFile(fileInfo)
+
+	bytes, err := json.Marshal(info)
+	if err == nil {
+		c.client.Do(ctx, c.client.B().Set().Key(key).Value(string(bytes)).Ex(c.refreshTime).Build())
+	}
+
+	return
+}
+
+func (c *CachedClient) Invalidate(path string) {
+	ctx := context.Background()
+	c.client.Do(ctx, c.client.B().Del().Key(fmt.Sprintf("webdav:readdir:%s", path)).Key(fmt.Sprintf("webdav:read:%s", path)).Build())
+}

internal/filesystem/cache_test.go

@@ -0,0 +1,58 @@
+package filesystem
+
+import (
+	"encoding/json"
+	"os"
+	"testing"
+	"time"
+)
+
+func TestCachedFile_Serialization(t *testing.T) {
+	now := time.Now().Truncate(time.Second) // JSON marshal of time might lose precision
+	cf := File{
+		name:        "test.md",
+		size:        123,
+		mode:        0o644,
+		modTime:     now,
+		isDir:       false,
+		contentType: "text/markdown",
+		path:        "/test.md",
+	}
+
+	data, err := json.Marshal(cf)
+	if err != nil {
+		t.Fatalf("Marshal failed: %v", err)
+	}
+
+	var cf2 File
+	if err := json.Unmarshal(data, &cf2); err != nil {
+		t.Fatalf("Unmarshal failed: %v", err)
+	}
+
+	if cf.name != cf2.name {
+		t.Errorf("Name mismatch: %s != %s", cf.name, cf2.name)
+	}
+	if cf.size != cf2.size {
+		t.Errorf("Size mismatch: %d != %d", cf.size, cf2.size)
+	}
+	if cf.mode != cf2.mode {
+		t.Errorf("Mode mismatch: %v != %v", cf.mode, cf2.mode)
+	}
+	if !cf.modTime.Equal(cf2.modTime) {
+		t.Errorf("ModTime mismatch: %v != %v", cf.modTime, cf2.modTime)
+	}
+	if cf.isDir != cf2.isDir {
+		t.Errorf("IsDir mismatch: %v != %v", cf.isDir, cf2.isDir)
+	}
+	if cf.contentType != cf2.contentType {
+		t.Errorf("ContentType mismatch: %s != %s", cf.contentType, cf2.contentType)
+	}
+	if cf.path != cf2.path {
+		t.Errorf("Path mismatch: %s != %s", cf.path, cf2.path)
+	}
+}
+
+func TestCachedFile_Interface(t *testing.T) {
+	// Verify CachedFile implements os.FileInfo
+	var _ os.FileInfo = File{}
+}

internal/filesystem/model.go

@@ -0,0 +1,106 @@
+package filesystem
+
+import (
+	"encoding/json"
+	"os"
+	"time"
+)
+
+type FS interface {
+	ReadDir(path string) ([]os.FileInfo, error)
+	Read(path string) ([]byte, error)
+	Stat(path string) (os.FileInfo, error)
+}
+
+type FileInfo interface {
+	os.FileInfo
+	ContentType() string
+	Path() string
+}
+
+// File implements FileInfo
+type File struct {
+	name        string
+	size        int64
+	mode        os.FileMode
+	modTime     time.Time
+	isDir       bool
+	contentType string
+	path        string
+}
+
+func (f File) Name() string        { return f.name }
+func (f File) Size() int64         { return f.size }
+func (f File) Mode() os.FileMode   { return f.mode }
+func (f File) ModTime() time.Time  { return f.modTime }
+func (f File) IsDir() bool         { return f.isDir }
+func (f File) Sys() any            { return nil }
+func (f File) ContentType() string { return f.contentType }
+func (f File) Path() string        { return f.path }
+
+type serializableFile struct {
+	Name        string      `json:"name"`
+	Size        int64       `json:"size"`
+	Mode        os.FileMode `json:"mode"`
+	ModTime     time.Time   `json:"modTime"`
+	IsDir       bool        `json:"isDir"`
+	ContentType string      `json:"contentType"`
+	Path        string      `json:"path"`
+}
+
+// MarshalJSON implements json.Marshaler
+func (f File) MarshalJSON() ([]byte, error) {
+	// Create a local shadow struct with exported fields for the JSON package
+	return json.Marshal(serializableFile{
+		Name:        f.name,
+		Size:        f.size,
+		Mode:        f.mode,
+		ModTime:     f.modTime,
+		IsDir:       f.isDir,
+		ContentType: f.contentType,
+		Path:        f.path,
+	})
+}
+
+// UnmarshalJSON implements json.Unmarshaler
+func (f *File) UnmarshalJSON(data []byte) error {
+	// Define a shadow struct to capture the incoming JSON
+	shadow := serializableFile{}
+
+	if err := json.Unmarshal(data, &shadow); err != nil {
+		return err
+	}
+
+	// Transfer values to the actual struct
+	f.name = shadow.Name
+	f.size = shadow.Size
+	f.mode = shadow.Mode
+	f.modTime = shadow.ModTime
+	f.isDir = shadow.IsDir
+	f.contentType = shadow.ContentType
+	f.path = shadow.Path
+	return nil
+}
+
+func ParseToFile(file os.FileInfo) File {
+	if fi, ok := file.(FileInfo); ok {
+		return File{
+			name:        fi.Name(),
+			size:        fi.Size(),
+			mode:        fi.Mode(),
+			modTime:     fi.ModTime(),
+			isDir:       fi.IsDir(),
+			contentType: fi.ContentType(),
+			path:        fi.Path(),
+		}
+	} else {
+		// Fallback if underlying impl returns generic os.FileInfo
+		return File{
+			name:    file.Name(),
+			size:    file.Size(),
+			mode:    file.Mode(),
+			modTime: file.ModTime(),
+			isDir:   file.IsDir(),
+		}
+	}
+}

internal/handlers/handleimage/conroler.go

@@ -0,0 +1,20 @@
+package handleimage
+
+import (
+	"io"
+	"log/slog"
+	"net/http"
+)
+
+func (h *Handler) getImage(w http.ResponseWriter, r *http.Request) {
+	uid := r.PathValue("uid")
+
+	img, mime, err := h.img.GetImage(r.Context(), uid)
+	if err != nil {
+		slog.Error("error wile serving image", "err", err, "uid", uid)
+		w.WriteHeader(http.StatusInternalServerError)
+		return
+	}
+	w.Header().Add("Content-Type", mime)
+	io.Copy(w, img)
+}

internal/handlers/handleimage/resource.go

@@ -0,0 +1,24 @@
+package handleimage
+
+import (
+	"context"
+	"io"
+	"net/http"
+)
+
+type Handler struct {
+	img imageService
+}
+
+func New(mux *http.ServeMux, srv imageService) *Handler {
+	h := &Handler{
+		img: srv,
+	}
+
+	mux.HandleFunc("GET /images/{uid}", h.getImage)
+	return h
+}
+
+type imageService interface {
+	GetImage(ctx context.Context, uid string) (img io.Reader, mimeType string, err error)
+}

internal/server/routes.go

@@ -6,12 +6,16 @@ import (
 	"os"
 	"time"
 
+	"git.schreifuchs.ch/schreifuchs/schreifuchs.ch/internal/components/images"
 	"git.schreifuchs.ch/schreifuchs/schreifuchs.ch/internal/components/page"
 	"git.schreifuchs.ch/schreifuchs/schreifuchs.ch/internal/components/translate"
+	"git.schreifuchs.ch/schreifuchs/schreifuchs.ch/internal/filesystem"
 	"git.schreifuchs.ch/schreifuchs/schreifuchs.ch/internal/handlers/handlehome"
+	"git.schreifuchs.ch/schreifuchs/schreifuchs.ch/internal/handlers/handleimage"
 	"git.schreifuchs.ch/schreifuchs/schreifuchs.ch/internal/templer"
 	"git.schreifuchs.ch/schreifuchs/schreifuchs.ch/web"
 	"github.com/studio-b12/gowebdav"
+	"github.com/valkey-io/valkey-go"
 )
 
 func (s *Server) RegisterRoutes() (h http.Handler) {
@@ -34,9 +38,24 @@ func registerOther() (h http.Handler) {
 		slog.Error("could not connect webdavClient", "err", err, "pw", os.Getenv("TEST_PW"))
 	}
 
-	pager := page.New(webdavClient)
+	var fs filesystem.FS = webdavClient
 
-	_ = handlehome.New(mux, pager)
+	valkeyAddr := os.Getenv("VALKEY_ADDR")
+	if valkeyAddr == "" {
+		valkeyAddr = "127.0.0.1:6379"
+	}
+	valkeyClient, err := valkey.NewClient(valkey.ClientOption{
+		InitAddress: []string{valkeyAddr},
+		Password:    os.Getenv("VALKEY_PASSWORD"),
+	})
+	if err != nil {
+		slog.Error("failed to create valkey client", "err", err)
+	} else {
+		fs = filesystem.NewCachedClient(webdavClient, valkeyClient, 5*time.Minute)
+	}
+
+	_ = handlehome.New(mux, page.New(fs))
+	_ = handleimage.New(mux, images.New(fs))
 
 	mux.Handle("/", http.FileServer(http.FS(web.GetStaticFS())))
 

internal/server/static.go

@@ -44,6 +44,7 @@ func cacheMiddleware(maxAge time.Duration) func(next http.Handler) http.Handler
 	return func(next http.Handler) http.Handler {
 		return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 			w.Header().Set("Cache-Control", fmt.Sprintf("public, max-age=%.0f", maxAge.Seconds()))
+			w.Header().Set("Vary", "HX-Request,Accept-Language,Accept-Encoding")
 			next.ServeHTTP(w, r)
 		})
 	}

web/pages/index.templ

@@ -7,7 +7,7 @@ import (
 
 templ Home(pages []page.PageHeader) {
 	for _, page := range pages {
-		@components.ImageTile("https://picsum.photos/" + page.CoverImageUID) {
+		@components.ImageTile("/images/" + page.CoverImageUID) {
 			<a class="flex items-center justify-center h-full " href={ "/" + page.UID } preload="mouseover">
 				<h2
 					class="text-3xl font-bold text-white hover:underline text-shadow-lg"

web/pages/index_templ.go

@@ -79,7 +79,7 @@ func Home(pages []page.PageHeader) templ.Component {
 				}
 				return nil
 			})
-			templ_7745c5c3_Err = components.ImageTile("https://picsum.photos/"+page.CoverImageUID).Render(templ.WithChildren(ctx, templ_7745c5c3_Var2), templ_7745c5c3_Buffer)
+			templ_7745c5c3_Err = components.ImageTile("/images/"+page.CoverImageUID).Render(templ.WithChildren(ctx, templ_7745c5c3_Var2), templ_7745c5c3_Buffer)
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}