add image and artifact stores

Makefile

@@ -30,7 +30,7 @@ run: $(BINARY)
 	./$(BINARY) -vv serve
 
 $(BINARY): $(SOURCE) $(ROUTE_ASSET) $(DOCS_ASSET)
-	go build \
+	go build -v \
         -ldflags "-X main.AppVersion=$(VERSION) -X main.AppBuild=$(DATE)" \
       "sour.is/x/paste/cmd/paste"
 

assets/package.json

@@ -2,6 +2,7 @@
   "name": "paste",
   "version": "0.1.0",
   "private": true,
+  "homepage": "https://paste.dn42.us/ui",
   "dependencies": {
     "bootstrap": "^4.5.2",
     "bootstrap-4-react": "0.0.59",

assets/public/manifest.json

@@ -8,7 +8,7 @@
       "type": "image/x-icon"
     }
   ],
-  "start_url": "./index.html",
+  "start_url": "/ui/index.html",
   "display": "standalone",
   "theme_color": "#000000",
   "background_color": "#000000"

assets/src/App.js

@@ -30,11 +30,11 @@ componentDidMount() {
   render() {
     const {api, name} = this.state;
     return (
-      <BrowserRouter>
+      <BrowserRouter basename={'/ui'}>
         <React.Fragment key={1}>
           <section className="container-responsive">
             <Switch>
-              <Route path="/" component={Paste} />
+              <Route path={`/`} component={Paste} />
             </Switch>
           </section>
 

assets/src/paste/Paste.js

@@ -204,15 +204,15 @@ class Paste extends Component {
     const { plain } = this.state;
     const { history } = this.props;
 
-    this.encrypt(plain).then(([hash, decryptKey]) => { history.push('/paste/#/' + hash + '!' + decryptKey) });
+    this.encrypt(plain).then(([hash, decryptKey]) => { history.push('/#/' + hash + '!' + decryptKey) });
   }
   onNew(event) {
     const { history } = this.props;
-    this.setState({cipher:"", plain:"", hash: "", decryptKey: "", syntax: "text", expire: 604800, burn: false}, () => history.push('/paste'));
+    this.setState({cipher:"", plain:"", hash: "", decryptKey: "", syntax: "text", expire: 604800, burn: false}, () => history.push('/'));
   }
   onCopy(event) {
     const { history } = this.props;
-    this.setState({hash: "", decryptKey: ""}, () => history.push('/paste'))
+    this.setState({hash: "", decryptKey: ""}, () => history.push('/'))
   }
 
   decrypt(tx) {
@@ -346,7 +346,7 @@ function PasteCreate({error, onSubmit, onChange, syntax, syntaxItems, expire, ex
 
         <div className="card">
           <div className="card-body">
-            <p>Create pastes from the command line! <a href='/paste.sh' download>paste.sh</a></p>
+            <p>Create pastes from the command line! <a href={`${window.location.origin}/ui/paste.sh`} download>paste.sh</a></p>
             <pre>{`$ echo /etc/passwd | ./paste.sh
 
 env options:
@@ -370,7 +370,7 @@ function PasteView({hash, decryptKey, expires, burn, gzip, cipher, plain, syntax
         <span className="input-group-prepend">
           <button className="btn btn-default" type="button" onClick={onNew}>New</button>
         </span>
-        <input type='text' readOnly className='form-control' value={`${window.location.origin}/paste/#/${hash}!${decryptKey}`} onClick={(e) => e.target.select()}/>
+        <input type='text' readOnly className='form-control' value={`${window.location.origin}/ui/#/${hash}!${decryptKey}`} onClick={(e) => e.target.select()}/>
         <span className="input-group-append">
           <button className="btn btn-default" type="button" onClick={onCopy}>Copy</button>
         </span>

cmd/paste/config.go

@@ -46,7 +46,14 @@ listen   = ":9010"
 
 [module.paste]
 random = "4096"
-store = "data/"
+store = "data/paste"
+
+[module.artifact]
+store = "data/artifact"
+
+[module.image]
+store = "data/image"
+
 `
 
 var args map[string]interface{}
@@ -93,7 +100,7 @@ func init() {
 		viper.AddConfigPath(".")
 
 		viper.SetConfigType("toml")
-		viper.ReadConfig(bytes.NewBuffer([]byte(defaultConfig)))
+		_ = viper.ReadConfig(bytes.NewBuffer([]byte(defaultConfig)))
 
 		err = viper.MergeInConfig()
 		if err != nil { // Handle errors reading the config file

go.mod

@@ -3,15 +3,18 @@ module sour.is/x/paste
 go 1.14
 
 require (
-	github.com/99designs/gqlgen v0.9.3
+	github.com/99designs/gqlgen v0.12.2
+	github.com/andybalholm/brotli v1.0.0
 	github.com/docopt/docopt.go v0.0.0-20180111231733-ee0de3bc6815
-	github.com/go-swagger/go-swagger v0.23.0
+	github.com/go-swagger/go-swagger v0.25.0
-	github.com/golang/gddo v0.0.0-20190904175337-72a348e765d2 // indirect
+	github.com/golang/gddo v0.0.0-20200831202555-721e228c7686 // indirect
-	github.com/gorilla/mux v1.7.3
+	github.com/gorilla/mux v1.8.0
+	github.com/h2non/filetype v1.1.0
 	github.com/patrickmn/go-cache v2.1.0+incompatible
+	github.com/remyoudompheng/go-liblzma v0.0.0-20190506200333-81bf2d431b96
 	github.com/sour-is/go-assetfs v1.0.0
-	github.com/spf13/viper v1.6.2
+	github.com/spf13/viper v1.7.1
-	github.com/vektah/dataloaden v0.2.1-0.20190515034641-a19b9a6e7c9e
+	github.com/vektah/dataloaden v0.3.0
-	golang.org/x/sys v0.0.0-20200817085935-3ff754bf58a9
+	golang.org/x/sys v0.0.0-20200831180312-196b9ba8737a
-	sour.is/x/toolbox v0.11.4
+	sour.is/x/toolbox v0.12.17
 )

go.sum

@@ -1,9 +1,23 @@
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+cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
+cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
+cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE=
+cloud.google.com/go/firestore v1.1.0/go.mod h1:ulACoGHTpvq5r8rxGJ4ddJZBZqakUQqClKRT5SZwBmk=
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+github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
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@@ -14,48 +28,72 @@ github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578 h1:d+Bc7a5rLufV
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@@ -71,8 +109,8 @@ github.com/go-openapi/errors v0.17.0/go.mod h1:LcZQpmvG4wyF5j4IhA73wkLFQg+QJXOQH
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@@ -118,18 +158,19 @@ github.com/go-openapi/swag v0.18.0/go.mod h1:AByQ+nYG6gQg71GINrmuDXCPWdL640yX49/
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@@ -187,22 +251,52 @@ github.com/gorilla/handlers v1.4.2/go.mod h1:Qkdc/uu4tH4g6mTK6auzZ766c4CA0Ng8+o/
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-gopkg.in/square/go-jose.v2 v2.4.1/go.mod h1:M9dMgbHiYLoDGQrXy7OpJDJWiKiU//h+vD76mk0e1AI=
+gopkg.in/square/go-jose.v2 v2.5.1/go.mod h1:M9dMgbHiYLoDGQrXy7OpJDJWiKiU//h+vD76mk0e1AI=
 gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74=
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@@ -468,8 +718,19 @@ gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
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+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20200605160147-a5ece683394c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776 h1:tQIYjPdBoyREyB9XMu+nnTclpTYkz2zFM+lzLJFO4gQ=
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-sour.is/x/toolbox v0.11.4/go.mod h1:MLNZOpClEsvFr5CNIBMZv9V56pIBmaI7mKWChr4AGSU=
+honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
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+rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
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+sour.is/x/toolbox v0.12.17/go.mod h1:DMM+aEl38izskLKuH+nDwEHH4FznK6dEiDcPR3wAq5s=
 sourcegraph.com/sourcegraph/appdash v0.0.0-20180110180208-2cc67fd64755/go.mod h1:hI742Nqp5OhwiqlzhgfbWU4mW4yO10fP+LoT9WOswdU=
 sourcegraph.com/sourcegraph/appdash-data v0.0.0-20151005221446-73f23eafcf67/go.mod h1:L5q+DGLGOQFpo1snNEkLOJT2d1YTW66rWNzatr3He1k=

src/docs/bindata.go

@@ -254,7 +254,7 @@ func publicSwaggerJson() (*asset, error) {
 		return nil, err
 	}
 
-	info := bindataFileInfo{name: "public/swagger.json", size: 4895, mode: os.FileMode(0644), modTime: time.Unix(1598898929, 0)}
+	info := bindataFileInfo{name: "public/swagger.json", size: 4895, mode: os.FileMode(0644), modTime: time.Unix(1599169378, 0)}
 	a := &asset{bytes: bytes, info: info, digest: [32]uint8{0x71, 0xcc, 0xe, 0x5f, 0xc1, 0xe9, 0xd6, 0xa9, 0x46, 0x93, 0xde, 0x3d, 0x71, 0x10, 0x7f, 0xa9, 0x1e, 0x98, 0x11, 0x70, 0xc6, 0xcf, 0x1c, 0xa, 0x57, 0x84, 0xfc, 0x3c, 0xf7, 0x28, 0x3, 0x67}}
 	return a, nil
 }

src/routes/artifact.go

@@ -0,0 +1,193 @@
+package routes
+
+import (
+	"archive/tar"
+	"crypto/sha256"
+	"encoding/base64"
+	"io"
+	"io/ioutil"
+	"net/http"
+	"os"
+	"path/filepath"
+	"strconv"
+	"strings"
+
+	"github.com/gorilla/mux"
+	"sour.is/x/toolbox/httpsrv"
+	"sour.is/x/toolbox/log"
+)
+
+func init() {
+	a := &Artifact{}
+	httpsrv.RegisterModule("artifact", a.config)
+
+	httpsrv.HttpRegister("artifact", httpsrv.HttpRoutes{
+		{Name: "get-path", Method: "GET", Pattern: "/a/{name}/{path:.*}", HandlerFunc: a.get},
+		{Name: "get", Method: "GET", Pattern: "/a/{name}", HandlerFunc: a.get},
+		{Name: "put", Method: "PUT", Pattern: "/a", HandlerFunc: a.put},
+	})
+}
+
+type Artifact struct {
+	store   string
+	maxSize int64
+}
+
+func (a *Artifact) config(config map[string]string) {
+	a.store = "data/"
+	if config["store"] != "" {
+		a.store = config["store"]
+	}
+
+	if !chkStore(a.store) {
+		log.Criticalf("Artifact Store location [%s] does not exist or is not writable.", a.store)
+	}
+	log.Noticef("Artifact Store location set to [%s]", a.store)
+
+	a.maxSize = 50 * 1024 * 1024
+	if s, ok := config["max-size"]; ok {
+		if i, err := strconv.Atoi(s); err == nil {
+			a.maxSize = int64(i)
+		}
+	}
+	log.Noticef("Artifact: store max-size set to [%d]", a.maxSize)
+}
+
+func (a *Artifact) get(w http.ResponseWriter, r *http.Request) {
+	vars := mux.Vars(r)
+
+	name := vars["name"]
+	path, hasPath := vars["path"]
+
+	ext := filepath.Ext(name)
+	id := strings.TrimSuffix(name, ext)
+
+	fname := filepath.Join(a.store, id)
+
+	if !chkFile(fname) {
+		httpsrv.WriteError(w, http.StatusNotFound, "Not Found")
+
+		return
+	}
+
+	if chkGone(fname) {
+		httpsrv.WriteError(w, http.StatusGone, "Gone")
+
+		return
+	}
+
+	f, err := os.Open(fname)
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer f.Close()
+
+	if !hasPath {
+		pr := NewPreviewReader(f)
+
+		mime, err := ReadMIME(pr, name)
+		if err != nil {
+			httpsrv.WriteError(w, http.StatusInternalServerError, err.Error())
+			return
+		}
+		w.Header().Set("Content-Type", mime)
+		w.Header().Set("X-Content-Type-Options", "nosniff")
+
+		io.Copy(w, pr.Drain())
+		return
+	}
+
+	rdr, err := Decompress(f)
+	if err != nil {
+		httpsrv.WriteError(w, http.StatusInternalServerError, err.Error())
+		return
+	}
+	if cl, ok := rdr.(io.ReadCloser); ok {
+		defer cl.Close()
+	}
+
+	tr := tar.NewReader(rdr)
+	if path == "..." {
+		var paths []string
+		for {
+			hdr, err := tr.Next()
+			if err == io.EOF {
+				break // End of archive
+			}
+			if err != nil {
+				log.Fatal(err)
+			}
+			paths = append(paths, hdr.Name)
+		}
+
+		httpsrv.WriteObject(w, http.StatusOK, paths)
+		return
+	}
+
+	for {
+		hdr, err := tr.Next()
+		if err == io.EOF {
+			break // End of archive
+		}
+		if err != nil {
+			log.Fatal(err)
+		}
+		if hdr.Name == path {
+			pr := NewPreviewReader(tr)
+
+			mime, err := ReadMIME(pr, hdr.Name)
+			if err != nil {
+				httpsrv.WriteError(w, http.StatusInternalServerError, err.Error())
+				return
+			}
+			w.Header().Set("Content-Type", mime)
+
+			if _, err := io.Copy(w, pr.Drain()); err != nil {
+				log.Fatal(err)
+			}
+			w.WriteHeader(http.StatusOK)
+			return
+		}
+	}
+
+	httpsrv.WriteError(w, http.StatusNotFound, "Not Found in Archive")
+}
+func (a *Artifact) put(w http.ResponseWriter, r *http.Request) {
+	defer r.Body.Close()
+
+	if h := r.Header.Get("Content-Length"); h != "" {
+		if i, err := strconv.Atoi(h); err == nil {
+			if int64(i) > a.maxSize {
+				http.Error(w, "ERR Size Too Large", http.StatusRequestEntityTooLarge)
+				return
+			}
+		}
+	}
+
+	rdr := io.LimitReader(r.Body, 500*1024*1024)
+	pr := NewPreviewReader(rdr)
+	rdr = pr.Drain()
+
+	s256 := sha256.New()
+	tmp, err := ioutil.TempFile(a.store, "arch-")
+	if err != nil {
+		httpsrv.WriteError(w, 400, err.Error())
+		return
+	}
+
+	defer os.Remove(tmp.Name())
+
+	m := io.MultiWriter(s256, tmp)
+	if _, err := io.Copy(m, rdr); err != nil {
+		httpsrv.WriteError(w, 400, err.Error())
+	}
+	tmp.Close()
+
+	id := base64.RawURLEncoding.EncodeToString(s256.Sum(nil)[12:])
+	fname := filepath.Join(a.store, id)
+
+	log.Debugs("Artifact: moving file", "src", tmp.Name(), "dst", fname)
+	os.Rename(tmp.Name(), fname)
+
+	httpsrv.WriteText(w, http.StatusCreated, id)
+}

src/routes/decompress.go

@@ -0,0 +1,37 @@
+package routes
+
+import (
+	"compress/bzip2"
+	"compress/gzip"
+	"io"
+
+	"github.com/andybalholm/brotli"
+	xz "github.com/remyoudompheng/go-liblzma"
+	"sour.is/x/toolbox/log"
+)
+
+func Decompress(in io.Reader) (io.Reader, error) {
+	rdr := NewPreviewReader(in)
+	mime, err := ReadMIMEWithSize(rdr, "", 32768)
+	if err != nil {
+		return rdr.Drain(), err
+	}
+	r := rdr.Drain()
+
+	switch mime {
+	case "application/gzip":
+		r, err = gzip.NewReader(r)
+
+	case "application/x-bzip2":
+		r = bzip2.NewReader(r)
+
+	case "application/x-xz":
+		r, err = xz.NewReader(r)
+
+	case "application/brotli":
+		r = brotli.NewReader(r)
+	}
+	log.Debugs("Decompress:", "mime", mime)
+
+	return r, err
+}

src/routes/image.go

@@ -0,0 +1,149 @@
+package routes
+
+import (
+	"crypto/sha256"
+	"encoding/base64"
+	"io"
+	"io/ioutil"
+	"net/http"
+	"os"
+	"path/filepath"
+	"strconv"
+	"strings"
+
+	"github.com/gorilla/mux"
+	"github.com/h2non/filetype"
+	"sour.is/x/toolbox/httpsrv"
+	"sour.is/x/toolbox/log"
+)
+
+func init() {
+	a := &Image{}
+	httpsrv.RegisterModule("image", a.config)
+
+	httpsrv.HttpRegister("image", httpsrv.HttpRoutes{
+		{Name: "getImage", Method: "GET", Pattern: "/i/{name}", HandlerFunc: a.get},
+		{Name: "putImage", Method: "PUT", Pattern: "/i", HandlerFunc: a.put},
+	})
+}
+
+type Image struct {
+	store   string
+	maxSize int64
+}
+
+func (a *Image) config(config map[string]string) {
+	a.store = "data/"
+	if config["store"] != "" {
+		a.store = config["store"]
+	}
+
+	if !chkStore(a.store) {
+		log.Criticalf("Image: store location [%s] does not exist or is not writable.", a.store)
+	}
+	log.Noticef("Image: store location set to [%s]", a.store)
+
+	a.maxSize = 10 * 1024 * 1024
+	if s, ok := config["max-size"]; ok {
+		if i, err := strconv.Atoi(s); err == nil {
+			a.maxSize = int64(i)
+		}
+	}
+	log.Noticef("Image: store max-size set to [%d]", a.maxSize)
+}
+
+func (a *Image) get(w http.ResponseWriter, r *http.Request) {
+	vars := mux.Vars(r)
+
+	name := vars["name"]
+
+	ext := filepath.Ext(name)
+	id := strings.TrimSuffix(name, ext)
+
+	fname := filepath.Join(a.store, id)
+
+	if !chkFile(fname) {
+		httpsrv.WriteError(w, http.StatusNotFound, "Not Found")
+
+		return
+	}
+
+	if chkGone(fname) {
+		httpsrv.WriteError(w, http.StatusGone, "Gone")
+
+		return
+	}
+
+	f, err := os.Open(fname)
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer f.Close()
+
+	pr := NewPreviewReader(f)
+
+	mime, err := ReadMIME(pr, name)
+	w.Header().Set("Content-Type", mime)
+	w.Header().Set("X-Content-Type-Options", "nosniff")
+
+	io.Copy(w, pr.Drain())
+}
+
+func (a *Image) put(w http.ResponseWriter, r *http.Request) {
+	defer r.Body.Close()
+
+	if h := r.Header.Get("Content-Length"); h != "" {
+		log.Debugs("Artifact:", "content-length", h, "max-length", a.maxSize)
+		if i, err := strconv.Atoi(h); err == nil {
+			if int64(i) > a.maxSize {
+				log.Error("ERR Size Too Large")
+				http.Error(w, "ERR Size Too Large", http.StatusRequestEntityTooLarge)
+				return
+			}
+		}
+	}
+
+	rdr := io.LimitReader(r.Body, a.maxSize)
+	pr := NewPreviewReader(rdr)
+	if !isImageOrVideo(pr) {
+		httpsrv.WriteError(w, http.StatusUnsupportedMediaType, "ERR Not Image")
+		return
+	}
+	rdr = pr.Drain()
+
+	s256 := sha256.New()
+	tmp, err := ioutil.TempFile(a.store, "image-")
+	if err != nil {
+		httpsrv.WriteError(w, 400, err.Error())
+		return
+	}
+	defer os.Remove(tmp.Name())
+
+	m := io.MultiWriter(s256, tmp)
+	if _, err = io.Copy(m, rdr); err != nil {
+		httpsrv.WriteError(w, 400, err.Error())
+		return
+	}
+	tmp.Close()
+
+	id := base64.RawURLEncoding.EncodeToString(s256.Sum(nil)[12:])
+	fname := filepath.Join(a.store, id)
+
+	log.Debugs("Image: moving file", "src", tmp.Name(), "dst", fname)
+	err = os.Rename(tmp.Name(), fname)
+	if err != nil {
+		httpsrv.WriteError(w, 400, err.Error())
+		return
+	}
+
+	httpsrv.WriteText(w, http.StatusCreated, id)
+}
+
+func isImageOrVideo(in io.Reader) bool {
+	buf := make([]byte, 320)
+	_, err := in.Read(buf)
+	if err != nil {
+		return false
+	}
+	return filetype.IsImage(buf) || filetype.IsVideo(buf)
+}

src/routes/paste.go

@@ -5,11 +5,11 @@ import (
 	"crypto/rand"
 	"crypto/sha256"
 	"encoding/base64"
-	"encoding/json"
 	"io"
 	"io/ioutil"
 	"net/http"
 	"os"
+	"path/filepath"
 	"strconv"
 	"strings"
 	"time"
@@ -20,55 +20,67 @@ import (
 	"sour.is/x/toolbox/log"
 )
 
-var store string
-var randBytes int
-
 func init() {
-	httpsrv.RegisterModule("paste", setConfig)
+	p := &Paste{}
+
+	httpsrv.RegisterModule("paste", p.setConfig)
 
 	httpsrv.HttpRegister("paste", httpsrv.HttpRoutes{
-		{Name: "getRandom", Method: "GET", Pattern: "/paste/rng", HandlerFunc: getRandom},
+		{Name: "getRandom", Method: "GET", Pattern: "/paste/rng", HandlerFunc: p.getRandom},
-		{Name: "getPaste", Method: "GET", Pattern: "/paste/{id}", HandlerFunc: getPaste},
+		{Name: "getPaste", Method: "GET", Pattern: "/paste/{id}", HandlerFunc: p.getPaste},
-		{Name: "getPaste", Method: "GET", Pattern: "/paste/get/{id}", HandlerFunc: getPaste},
+		{Name: "getPaste", Method: "GET", Pattern: "/paste/get/{id}", HandlerFunc: p.getPaste},
-		{Name: "postPaste", Method: "POST", Pattern: "/paste", HandlerFunc: postPaste},
+		{Name: "postPaste", Method: "POST", Pattern: "/paste", HandlerFunc: p.postPaste},
 
-		{Name: "getRandom", Method: "GET", Pattern: "/api/rng", HandlerFunc: getRandom},
+		{Name: "getRandom", Method: "GET", Pattern: "/api/rng", HandlerFunc: p.getRandom},
-		{Name: "getPaste", Method: "GET", Pattern: "/api/{id}", HandlerFunc: getPaste},
+		{Name: "getPaste", Method: "GET", Pattern: "/api/{id}", HandlerFunc: p.getPaste},
-		{Name: "getPaste", Method: "GET", Pattern: "/api/get/{id}", HandlerFunc: getPaste},
+		{Name: "getPaste", Method: "GET", Pattern: "/api/get/{id}", HandlerFunc: p.getPaste},
-		{Name: "postPaste", Method: "POST", Pattern: "/api", HandlerFunc: postPaste},
+		{Name: "postPaste", Method: "POST", Pattern: "/api", HandlerFunc: p.postPaste},
 	})
 }
 
-func setConfig(config map[string]string) {
+type Paste struct {
+	store     string
+	randBytes int
+}
 
-	store = "data/"
+func (p *Paste) setConfig(config map[string]string) {
+	p.store = "data/"
 	if config["store"] != "" {
-		store = config["store"]
+		p.store = config["store"]
 	}
 
-	if !chkStore(store) {
+	if !chkStore(p.store) {
-		log.Criticalf("[routes::Paste] Store location [%s] does not exist or is not writable.", store)
+		log.Criticalf("Paste: store location [%s] does not exist or is not writable.", p.store)
 	}
-	log.Noticef("[paste::getPaste] Store location set to [%s]", store)
+	log.Noticef("Paste: store location set to [%s]", p.store)
 
-	randBytes = 1024
+	p.randBytes = 1024
 	if config["random"] != "" {
-		randBytes, _ = strconv.Atoi(config["random"])
+		p.randBytes, _ = strconv.Atoi(config["random"])
-		log.Noticef("[paste:getRandom] set random size to %d bytes", randBytes)
+		log.Noticef("Paste: set random size to %d bytes", p.randBytes)
 	}
 }
 
 func chkStore(path string) bool {
 	file, err := os.Stat(path)
-	if err == nil {
+
-		return true
+	if err != nil && os.IsNotExist(err) {
-	}
+		err = os.MkdirAll(path, 0744)
-	if os.IsNotExist(err) {
+		if err != nil {
 			return false
 		}
+
+		file, err = os.Stat(path)
+	}
+
+	if err != nil {
+		return false
+	}
+
 	if !file.IsDir() {
 		return false
 	}
+
 	if unix.Access(path, unix.W_OK&unix.R_OK) != nil {
 		return false
 	}
@@ -78,15 +90,14 @@ func chkStore(path string) bool {
 
 func chkFile(path string) bool {
 	file, err := os.Stat(path)
-	if err == nil {
+	if err != nil {
-		return true
-	}
-	if os.IsNotExist(err) {
 		return false
 	}
+
 	if file.IsDir() {
 		return false
 	}
+
 	if unix.Access(path, unix.W_OK&unix.R_OK) != nil {
 		return false
 	}
@@ -99,50 +110,55 @@ func chkGone(path string) bool {
 	if err != nil {
 		return true
 	}
+
 	if file.Size() == 0 {
 		return true
 	}
+
 	return false
 }
 
-func getRandom(w http.ResponseWriter, r *http.Request) {
+func (p *Paste) getRandom(w http.ResponseWriter, _ *http.Request) {
-	s := make([]byte, randBytes)
+	s := make([]byte, p.randBytes)
-	rand.Read(s)
+	_, _ = rand.Read(s)
 
 	w.Header().Set("content-type", "application/octet-stream")
 	w.WriteHeader(http.StatusOK)
-	w.Write(s)
+	_, _ = w.Write(s)
 }
 
-func getPaste(w http.ResponseWriter, r *http.Request) {
+func (p *Paste) getPaste(w http.ResponseWriter, r *http.Request) {
-
 	vars := mux.Vars(r)
 	id := vars["id"]
 
-	if !chkFile(store + id) {
+	fname := filepath.Join(p.store, id)
-		w.WriteHeader(http.StatusNotFound)
+
-		w.Write([]byte("ERR Not Found"))
+	if !chkFile(fname) {
+		httpsrv.WriteText(w, http.StatusNotFound, "ERR Not Found")
 		return
 	}
 
-	if chkGone(store + id) {
+	if chkGone(fname) {
-		w.WriteHeader(http.StatusGone)
+		httpsrv.WriteText(w, http.StatusGone, "ERR Gone")
-		w.Write([]byte("ERR Gone"))
 		return
 	}
 
-	head, err := os.Open(store + id)
+	f, err := os.Open(fname)
 	if err != nil {
 		log.Fatal(err)
+		httpsrv.WriteText(w, http.StatusInternalServerError, "ERR Reading Content")
 	}
-	defer head.Close()
+	defer f.Close()
+
+	pr := NewPreviewReader(f)
 
 	keep := true
-	scanner := bufio.NewScanner(head)
+	scanner := bufio.NewScanner(pr)
 	for scanner.Scan() {
 		txt := scanner.Text()
 		log.Debug(txt)
 
+		// End of header found
 		if txt == "" {
 			break
 		}
@@ -157,9 +173,9 @@ func getPaste(w http.ResponseWriter, r *http.Request) {
 			log.Debugf("%d > %d", now, exp)
 			if now > exp {
 				w.WriteHeader(http.StatusGone)
-				w.Write([]byte("ERR Gone"))
+				_, _ = w.Write([]byte("ERR Gone"))
 
-				deleteFile(store + id)
+				deleteFile(fname)
 
 				return
 			}
@@ -174,47 +190,46 @@ func getPaste(w http.ResponseWriter, r *http.Request) {
 		}
 	}
 
-	file, _ := os.Open(store + id)
-	defer file.Close()
-
 	w.WriteHeader(http.StatusOK)
-
+	io.Copy(w, pr.Drain())
-	scanner = bufio.NewScanner(file)
-	for scanner.Scan() {
-		w.Write(scanner.Bytes())
-		w.Write([]byte("\n"))
-	}
 
 	if !keep {
-		deleteFile(store + id)
+		deleteFile(fname)
 	}
 }
 
-func postPaste(w http.ResponseWriter, r *http.Request) {
+func (p *Paste) postPaste(w http.ResponseWriter, r *http.Request) {
 	defer r.Body.Close()
 
-	body, err := ioutil.ReadAll(io.LimitReader(r.Body, 1048576))
+	rdr := io.LimitReader(r.Body, 1048576)
-	checkErr(err, w)
 
-	s256 := sha256.Sum256(body)
+	s256 := sha256.New()
-	id := base64.RawURLEncoding.EncodeToString(s256[12:])
+	tmp, _ := ioutil.TempFile(p.store, "arch-")
+	defer os.Remove(tmp.Name())
 
-	ioutil.WriteFile(store+id, body, 0644)
+	m := io.MultiWriter(s256, tmp)
+	if _, err := io.Copy(m, rdr); err != nil {
+		httpsrv.WriteError(w, 400, err.Error())
+	}
+	tmp.Close()
 
-	w.WriteHeader(http.StatusCreated)
+	id := base64.RawURLEncoding.EncodeToString(s256.Sum(nil)[12:])
-	w.Write([]byte("OK " + id))
+	fname := filepath.Join(p.store, id)
 
-	w.WriteHeader(http.StatusCreated)
+	os.Rename(tmp.Name(), fname)
+
+	httpsrv.WriteText(w, http.StatusCreated, "OK "+id)
 }
 
-func checkErr(err error, w http.ResponseWriter) {
+func checkErr(err error, w http.ResponseWriter) bool {
 	if err != nil {
-		w.WriteHeader(http.StatusBadRequest)
+		httpsrv.WriteObject(w, http.StatusBadRequest, err)
-		json.NewEncoder(w).Encode(err)
+		return true
-		panic(err)
 	}
+
+	return false
 }
 
 func deleteFile(path string) {
-	ioutil.WriteFile(path, []byte(""), 0644)
+	_ = ioutil.WriteFile(path, nil, 0644)
 }

src/routes/preview-reader.go

@@ -0,0 +1,72 @@
+package routes
+
+import (
+	"bytes"
+	"errors"
+	"io"
+
+	"sour.is/x/toolbox/log"
+)
+
+type PreviewReader struct {
+	r   io.Reader
+	buf bytes.Buffer
+}
+
+func NewPreviewReader(r io.Reader) *PreviewReader {
+	return &PreviewReader{r: r}
+}
+
+var ErrReaderDrained = errors.New("io.Reader has been drained")
+
+func (pr *PreviewReader) Read(p []byte) (n int, err error) {
+	if pr.r == nil {
+		return 0, ErrReaderDrained
+	}
+
+	i, err := pr.r.Read(p)
+
+	log.Debugf("PreviewReader: buffer %d bytes", i)
+	_, berr := pr.buf.Write(p[:i])
+	if berr != nil {
+		return i, berr
+	}
+
+	return i, err
+}
+
+func (pr *PreviewReader) Drain() io.Reader {
+	dr := &drainReader{r: pr.r, buf: &pr.buf}
+	pr.r = nil
+	return dr
+}
+
+type drainReader struct {
+	r   io.Reader
+	buf *bytes.Buffer
+}
+
+func (dr *drainReader) Read(p []byte) (n int, err error) {
+	i := 0
+	// log.Debugs("drainReader:", "buf", dr.buf.Len(), "p", len(p))
+	if dr.buf.Len() > 0 {
+		i, err = dr.buf.Read(p)
+		if err != nil && err != io.EOF {
+			return i, err
+		}
+
+		if err != nil && err == io.EOF {
+			err = nil
+		}
+
+		if err != nil {
+			return i, err
+		}
+	}
+
+	ri, err := dr.r.Read(p[i:])
+
+	// log.Debugs("drainReader:", "drain", i, "read", ri, "cap", len(p), "err", err)
+
+	return ri + i, err
+}

src/routes/public.go

@@ -1,11 +1,26 @@
 package routes
 
-import "sour.is/x/toolbox/httpsrv"
+import (
+	"fmt"
+	"net/http"
+
+	"sour.is/x/toolbox/httpsrv"
+)
 
 func init() {
-	httpsrv.AssetRegister("paste", httpsrv.AssetRoutes{
+	asset := assetFS()
-		{Name: "Assets", Path: "/", HandlerFunc: httpsrv.FsHtml5(assetFS())},
+	fmt.Printf("%#v\n", asset)
+
+	httpsrv.HttpRegister("ui", httpsrv.HttpRoutes{
+		{
+			Name:        "Assets",
+			Method:      "GET",
+			Pattern:     "/ui{path:.*}",
+			HandlerFunc: http.StripPrefix("/ui", http.FileServer(httpsrv.FsHtml5(asset))).ServeHTTP,
+		},
+
+		{Name: "Root", Method: "GET", Pattern: "/", HandlerFunc: http.RedirectHandler("/ui/", http.StatusFound).ServeHTTP},
 	})
 }
 
-//go:generate go run github.com/sour-is/go-assetfs/cmd/assetfs -pkg routes  -prefix ../../ ../../public/ ../../public/static/css/ ../../public/static/js/
+//go:generate go run github.com/sour-is/go-assetfs/cmd/assetfs -pkg routes  -prefix ../../ ../../public/...