test(files, users): add e2e test and fix issues

go.mod

@@ -5,9 +5,10 @@ go 1.13
 require (
 	github.com/boltdb/bolt v1.3.1
 	github.com/elazarl/goproxy v0.0.0-20201021153353-00ad82a08272 // indirect
+	github.com/gin-contrib/static v0.0.0-20200916080430-d45d9a37d28e
 	github.com/gin-gonic/gin v1.6.3
 	github.com/ihexxa/gocfg v0.0.0-20201206115732-ab537e3b1086
-	github.com/ihexxa/multipart v0.0.0-20201201114901-e265a43930c0
+	github.com/ihexxa/multipart v0.0.0-20201207132919-72f6e0e58b25
 	github.com/jessevdk/go-flags v1.4.0
 	github.com/parnurzeal/gorequest v0.2.16
 	github.com/pkg/errors v0.9.1 // indirect

go.sum

@@ -3,22 +3,29 @@ github.com/boltdb/bolt v1.3.1/go.mod h1:clJnj/oiGkjum5o1McbSZDSLxVThjynRyGBgiAx2
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/elazarl/go-bindata-assetfs v1.0.0/go.mod h1:v+YaWX3bdea5J/mo8dSETolEo7R71Vk1u8bnjau5yw4=
 github.com/elazarl/goproxy v0.0.0-20201021153353-00ad82a08272 h1:Am81SElhR3XCQBunTisljzNkNese2T1FiV8jP79+dqg=
 github.com/elazarl/goproxy v0.0.0-20201021153353-00ad82a08272/go.mod h1:Ro8st/ElPeALwNFlcTpWmkr6IoMFfkjXAvTHpevnDsM=
 github.com/elazarl/goproxy/ext v0.0.0-20190711103511-473e67f1d7d2 h1:dWB6v3RcOy03t/bUadywsbyrQwCqZeNIEX6M1OtSZOM=
 github.com/elazarl/goproxy/ext v0.0.0-20190711103511-473e67f1d7d2/go.mod h1:gNh8nYJoAm43RfaxurUnxr+N1PwuFV3ZMl/efxlIlY8=
 github.com/gin-contrib/sse v0.1.0 h1:Y/yl/+YNO8GZSjAhjMsSuLt29uWRFHdHYUb5lYOV9qE=
 github.com/gin-contrib/sse v0.1.0/go.mod h1:RHrZQHXnP2xjPF+u1gW/2HnVO7nvIa9PG3Gm+fLHvGI=
+github.com/gin-contrib/static v0.0.0-20200916080430-d45d9a37d28e h1:8bZpGwoPxkaivQPrAbWl+7zjjUcbFUnYp7yQcx2r2N0=
+github.com/gin-contrib/static v0.0.0-20200916080430-d45d9a37d28e/go.mod h1:VhW/Ch/3FhimwZb8Oj+qJmdMmoB8r7lmJ5auRjm50oQ=
+github.com/gin-gonic/gin v1.5.0/go.mod h1:Nd6IXA8m5kNZdNEHMBd93KT+mdY3+bewLgRvmCsR2Do=
 github.com/gin-gonic/gin v1.6.3 h1:ahKqKTFpO5KTPHxWZjEdPScmYaGtLo8Y4DMHoEsnp14=
 github.com/gin-gonic/gin v1.6.3/go.mod h1:75u5sXoLsGZoRN5Sgbi1eraJ4GU3++wFwWzhwvtwp4M=
 github.com/go-playground/assert/v2 v2.0.1 h1:MsBgLAaY856+nPRTKrp3/OZK38U/wa0CcBYNjji3q3A=
 github.com/go-playground/assert/v2 v2.0.1/go.mod h1:VDjEfimB/XKnb+ZQfWdccd7VUvScMdVu0Titje2rxJ4=
+github.com/go-playground/locales v0.12.1/go.mod h1:IUMDtCfWo/w/mtMfIE/IG2K+Ey3ygWanZIBtBW0W2TM=
 github.com/go-playground/locales v0.13.0 h1:HyWk6mgj5qFqCT5fjGBuRArbVDfE4hi8+e8ceBS/t7Q=
 github.com/go-playground/locales v0.13.0/go.mod h1:taPMhCMXrRLJO55olJkUXHZBHCxTMfnGwq/HNwmWNS8=
+github.com/go-playground/universal-translator v0.16.0/go.mod h1:1AnU7NaIRDWWzGEKwgtJRd2xk99HeFyHw3yid4rvQIY=
 github.com/go-playground/universal-translator v0.17.0 h1:icxd5fm+REJzpZx7ZfpaD876Lmtgy7VtROAbHHXk8no=
 github.com/go-playground/universal-translator v0.17.0/go.mod h1:UkSxE5sNxxRwHyU+Scu5vgOQjsIJAF8j9muTVoKLVtA=
 github.com/go-playground/validator/v10 v10.2.0 h1:KgJ0snyC2R9VXYN2rneOtQcw5aHQB1Vv0sFl1UcHBOY=
 github.com/go-playground/validator/v10 v10.2.0/go.mod h1:uOYAAleCW8F/7oMFd6aG0GOhaH6EGOAJShg8Id5JGkI=
+github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.3.3 h1:gyjaxf+svBWX08ZjK86iN9geUJF0H6gp2IRKX6Nf6/I=
 github.com/golang/protobuf v1.3.3/go.mod h1:vzj43D7+SQXF/4pzW/hwtAqwc6iTitCiVSaWz5lYuqw=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
@@ -28,14 +35,19 @@ github.com/ihexxa/gocfg v0.0.0-20201206115732-ab537e3b1086 h1:1IzU4pzD8NyEHgJGLO
 github.com/ihexxa/gocfg v0.0.0-20201206115732-ab537e3b1086/go.mod h1:oqDTq1ywx4Qi9DdhFwwMHoPCYv6Txrfj2SY5WWcgiJs=
 github.com/ihexxa/multipart v0.0.0-20201201114901-e265a43930c0 h1:L2fR7u66Kgh0DYOZWJPxOj23JrwEgUqOOivZHp6qfG8=
 github.com/ihexxa/multipart v0.0.0-20201201114901-e265a43930c0/go.mod h1:rhOAe/52S/J1fq1VnXvKX8FHuo65I+IcYUozW4M7+wE=
+github.com/ihexxa/multipart v0.0.0-20201207132919-72f6e0e58b25 h1:gQCaP2qoFWCTz17jj9EUhE/plgqJwk3nHbcS4RHQYCw=
+github.com/ihexxa/multipart v0.0.0-20201207132919-72f6e0e58b25/go.mod h1:rhOAe/52S/J1fq1VnXvKX8FHuo65I+IcYUozW4M7+wE=
 github.com/jessevdk/go-flags v1.4.0 h1:4IU2WS7AumrZ/40jfhf4QVDMsQwqA7VEHozFRrGARJA=
 github.com/jessevdk/go-flags v1.4.0/go.mod h1:4FA24M0QyGHXBuZZK/XkWh8h0e1EYbRYJSGM75WSRxI=
+github.com/json-iterator/go v1.1.7/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
 github.com/json-iterator/go v1.1.9 h1:9yzud/Ht36ygwatGx56VwCZtlI/2AD15T1X2sjSuGns=
 github.com/json-iterator/go v1.1.9/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
 github.com/jtolds/gls v4.20.0+incompatible h1:xdiiI2gbIgH/gLH7ADydsJ1uDOEzR8yvV7C0MuV77Wo=
 github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU=
+github.com/leodido/go-urn v1.1.0/go.mod h1:+cyI34gQWZcE1eQU7NVgKkkzdXDQHr1dBMtdAPozLkw=
 github.com/leodido/go-urn v1.2.0 h1:hpXL4XnriNwQ/ABnpepYM/1vCLWNDfUNts8dX3xTG6Y=
 github.com/leodido/go-urn v1.2.0/go.mod h1:+8+nEpDfqqsY+g338gtMEUOtuK+4dEMhiQEgxpxOKII=
+github.com/mattn/go-isatty v0.0.9/go.mod h1:YNRxwqDuOph6SZLI9vUUz6OYw3QyUt7WiY2yME+cCiQ=
 github.com/mattn/go-isatty v0.0.12 h1:wuysRhFDzyxgEmMf5xjvJ2M9dZoWAXNNr5LSBS7uHXY=
 github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
 github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 h1:ZqeYNhU3OHLH3mGKHDcjJRFFRrJa6eAM5H+CtDdOsPc=
@@ -74,6 +86,7 @@ golang.org/x/net v0.0.0-20201202161906-c7110b5ffcbb h1:eBmm0M9fYhWpKZLjQUUKka/Lt
 golang.org/x/net v0.0.0-20201202161906-c7110b5ffcbb/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190813064441-fde4db37ae7a/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200116001909-b77594299b42 h1:vEOn+mP2zCOVzKckCZy6YsCtDblrpj/w7B9nxGNELpg=
 golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f h1:+Nyd8tzPX9R7BWHguqsrbFdRx3WQ/1ib8I44HXV5yTA=
@@ -85,6 +98,8 @@ golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGm
 golang.org/x/tools v0.0.0-20190328211700-ab21143f2384/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/go-playground/assert.v1 v1.2.1/go.mod h1:9RXL0bg/zibRAgZUYszZSwO/z8Y/a8bDuhia5mkpMnE=
+gopkg.in/go-playground/validator.v9 v9.29.1/go.mod h1:+c9/zcJMFNgbLvly1L1V+PpxWdVbfP1avr/N00E2vyQ=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
 gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=

package.json

@@ -1,75 +1,4 @@
 {
-  "name": "quickshare",
+  "private": true,
-  "version": "0.2.2",
+  "workspaces": ["src/client/web"]
-  "description": "A succinct file sharing server.",
+}
-  "main": "",
-  "scripts": {
-    "build": "rm -rf ./dist && rm -rf ./public/dist && yarn build-client && goreleaser --snapshot",
-    "build-client": "webpack --config ./client/webpack.config.prod.js",
-    "build-client-dev": "webpack --config ./client/webpack.config.dev.js",
-    "clean": "go clean && rm -r ./dist && rm -r ./public/dist",
-    "check-fmt": "yarn prettier -l  '@(client|docs)/*.@(js|jsx|md)'",
-    "fmt": "go fmt ./... && yarn prettier --write  '@(client|docs)/*.@(js|jsx|md)'",
-    "setup": "yarn && dep ensure",
-    "start": "yarn build-client && go run server.go",
-    "test": "go test -v ./... && yarn jest --coverage"
-  },
-  "author": "hexxa",
-  "license": "LGPL-3.0",
-  "devDependencies": {
-    "auto-bump": "^0.0.9",
-    "babel-core": "^6.26.0",
-    "babel-jest": "^21.2.0",
-    "babel-loader": "^6.4.1",
-    "babel-preset-env": "^1.2.2",
-    "babel-preset-es2015": "^6.24.0",
-    "babel-preset-react": "^6.24.1",
-    "babel-preset-stage-0": "^6.24.1",
-    "babel-preset-stage-2": "^6.24.1",
-    "clean-webpack-plugin": "^0.1.19",
-    "css-loader": "^0.28.11",
-    "enzyme": "^3.3.0",
-    "enzyme-adapter-react-15": "^1.0.5",
-    "eslint": "^4.12.0",
-    "eslint-config-airbnb": "^16.0.0",
-    "eslint-plugin-import": "^2.7.0",
-    "eslint-plugin-jsx-a11y": "^6.0.2",
-    "eslint-plugin-react": "^7.4.0",
-    "html-webpack-plugin": "^3.2.0",
-    "jest": "^21.2.1",
-    "md5": "^2.2.1",
-    "prettier": "^1.13.3",
-    "react-addons-test-utils": "^15.6.2",
-    "react-test-renderer": "15",
-    "regenerator-runtime": "^0.11.1",
-    "style-loader": "^0.21.0",
-    "uglifyjs-webpack-plugin": "^1.2.5",
-    "uuid": "^3.1.0",
-    "value-equal": "^0.4.0",
-    "webpack": "^2.0.0",
-    "webpack-dev-server": "^2.9.5"
-  },
-  "dependencies": {
-    "axios": "^0.16.2",
-    "byte-size": "^4.0.2",
-    "debounce": "^1.1.0",
-    "file-loader": "^1.1.11",
-    "immutable": "^3.8.2",
-    "lodash.throttle": "^4.1.1",
-    "react": "^15.6.2",
-    "react-copy-to-clipboard": "^5.0.1",
-    "react-dom": "^15.6.2",
-    "react-icons": "^2.2.7",
-    "webpack-merge": "^4.1.2"
-  },
-  "jest": {
-    "transform": {
-      "^.+\\.jsx?$": "babel-jest"
-    },
-    "setupFiles": [
-      "./client/tests/enzyme_setup.js"
-    ],
-    "verbose": true
-  },
-  "autoBump": {}
-}

src/client/files.go

@@ -3,6 +3,7 @@ package client
 import (
 	"encoding/json"
 	"fmt"
+	"net/http"
 
 	"github.com/ihexxa/quickshare/src/handlers/fileshdr"
 	"github.com/parnurzeal/gorequest"
@@ -25,7 +26,7 @@ func (cl *FilesClient) url(urlpath string) string {
 	return fmt.Sprintf("%s%s", cl.addr, urlpath)
 }
 
-func (cl *FilesClient) Create(filepath string, size int64) (gorequest.Response, string, []error) {
+func (cl *FilesClient) Create(filepath string, size int64) (*http.Response, string, []error) {
 	return cl.r.Post(cl.url("/v1/fs/files")).
 		Send(fileshdr.CreateReq{
 			Path:     filepath,
@@ -34,13 +35,13 @@ func (cl *FilesClient) Create(filepath string, size int64) (gorequest.Response,
 		End()
 }
 
-func (cl *FilesClient) Delete(filepath string) (gorequest.Response, string, []error) {
+func (cl *FilesClient) Delete(filepath string) (*http.Response, string, []error) {
 	return cl.r.Delete(cl.url("/v1/fs/files")).
 		Param(fileshdr.FilePathQuery, filepath).
 		End()
 }
 
-func (cl *FilesClient) Metadata(filepath string) (gorequest.Response, *fileshdr.MetadataResp, []error) {
+func (cl *FilesClient) Metadata(filepath string) (*http.Response, *fileshdr.MetadataResp, []error) {
 	resp, body, errs := cl.r.Get(cl.url("/v1/fs/metadata")).
 		Param(fileshdr.FilePathQuery, filepath).
 		End()
@@ -54,13 +55,13 @@ func (cl *FilesClient) Metadata(filepath string) (gorequest.Response, *fileshdr.
 	return resp, mResp, nil
 }
 
-func (cl *FilesClient) Mkdir(dirpath string) (gorequest.Response, string, []error) {
+func (cl *FilesClient) Mkdir(dirpath string) (*http.Response, string, []error) {
 	return cl.r.Post(cl.url("/v1/fs/dirs")).
 		Send(fileshdr.MkdirReq{Path: dirpath}).
 		End()
 }
 
-func (cl *FilesClient) Move(oldpath, newpath string) (gorequest.Response, string, []error) {
+func (cl *FilesClient) Move(oldpath, newpath string) (*http.Response, string, []error) {
 	return cl.r.Patch(cl.url("/v1/fs/files/move")).
 		Send(fileshdr.MoveReq{
 			OldPath: oldpath,
@@ -69,7 +70,7 @@ func (cl *FilesClient) Move(oldpath, newpath string) (gorequest.Response, string
 		End()
 }
 
-func (cl *FilesClient) UploadChunk(filepath string, content string, offset int64) (gorequest.Response, string, []error) {
+func (cl *FilesClient) UploadChunk(filepath string, content string, offset int64) (*http.Response, string, []error) {
 	return cl.r.Patch(cl.url("/v1/fs/files/chunks")).
 		Send(fileshdr.UploadChunkReq{
 			Path:    filepath,
@@ -79,7 +80,7 @@ func (cl *FilesClient) UploadChunk(filepath string, content string, offset int64
 		End()
 }
 
-func (cl *FilesClient) UploadStatus(filepath string) (gorequest.Response, *fileshdr.UploadStatusResp, []error) {
+func (cl *FilesClient) UploadStatus(filepath string) (*http.Response, *fileshdr.UploadStatusResp, []error) {
 	resp, body, errs := cl.r.Get(cl.url("/v1/fs/files/chunks")).
 		Param(fileshdr.FilePathQuery, filepath).
 		End()
@@ -93,8 +94,8 @@ func (cl *FilesClient) UploadStatus(filepath string) (gorequest.Response, *files
 	return resp, uResp, nil
 }
 
-func (cl *FilesClient) Download(filepath string, headers map[string]string) (gorequest.Response, string, []error) {
+func (cl *FilesClient) Download(filepath string, headers map[string]string) (*http.Response, string, []error) {
-	r := cl.r.Get(cl.url("/v1/fs/files/chunks")).
+	r := cl.r.Get(cl.url("/v1/fs/files")).
 		Param(fileshdr.FilePathQuery, filepath)
 	for key, val := range headers {
 		r = r.Set(key, val)
@@ -102,7 +103,7 @@ func (cl *FilesClient) Download(filepath string, headers map[string]string) (gor
 	return r.End()
 }
 
-func (cl *FilesClient) List(dirPath string) (gorequest.Response, *fileshdr.ListResp, []error) {
+func (cl *FilesClient) List(dirPath string) (*http.Response, *fileshdr.ListResp, []error) {
 	resp, body, errs := cl.r.Get(cl.url("/v1/fs/dirs")).
 		Param(fileshdr.ListDirQuery, dirPath).
 		End()

src/client/settings.go

@@ -0,0 +1,30 @@
+package client
+
+import (
+	"fmt"
+	"net/http"
+
+	"github.com/parnurzeal/gorequest"
+)
+
+type SettingsClient struct {
+	addr string
+	r    *gorequest.SuperAgent
+}
+
+func NewSettingsClient(addr string) *SettingsClient {
+	gr := gorequest.New()
+	return &SettingsClient{
+		addr: addr,
+		r:    gr,
+	}
+}
+
+func (cl *SettingsClient) url(urlpath string) string {
+	return fmt.Sprintf("%s%s", cl.addr, urlpath)
+}
+
+func (cl *SettingsClient) Health() (*http.Response, string, []error) {
+	return cl.r.Options(cl.url("/v1/settings/health")).
+		End()
+}

src/fs/local/fs.go

@@ -56,12 +56,16 @@ func (fs *LocalFS) Root() string {
 }
 
 // closeOpens assumes that it is called after opensMtx.Lock()
-func (fs *LocalFS) closeOpens(closeAll bool) error {
+func (fs *LocalFS) closeOpens(closeAll bool, exclude map[string]bool) error {
 	batch := fs.opensCleanSize
 
 	var err error
 	for key, info := range fs.opens {
-		if batch <= 0 && !closeAll {
+		if exclude[key] {
+			continue
+		}
+
+		if !closeAll && batch <= 0 {
 			break
 		}
 		batch--
@@ -83,7 +87,7 @@ func (fs *LocalFS) closeOpens(closeAll bool) error {
 func (fs *LocalFS) Sync() error {
 	fs.opensMtx.Lock()
 	defer fs.opensMtx.Unlock()
-	return fs.closeOpens(true)
+	return fs.closeOpens(true, map[string]bool{})
 }
 
 // check refers implementation of Dir.Open() in http package
@@ -176,6 +180,7 @@ func (fs *LocalFS) ReadAt(path string, b []byte, off int64) (int, error) {
 				return nil, ErrTooManyOpens
 			}
 
+			// because the fd may be for other usage, its flag is not set as os.O_RDONLY
 			fd, err := os.OpenFile(fullpath, os.O_RDWR|os.O_APPEND, fs.defaultPerm)
 			if err != nil {
 				return nil, err
@@ -185,7 +190,7 @@ func (fs *LocalFS) ReadAt(path string, b []byte, off int64) (int, error) {
 				lastAccess: time.Now(),
 			}
 			fs.opens[fullpath] = info
-			fs.closeOpens(false)
+			fs.closeOpens(false, map[string]bool{fullpath: true})
 		}
 
 		return info, nil
@@ -231,7 +236,7 @@ func (fs *LocalFS) WriteAt(path string, b []byte, off int64) (int, error) {
 				lastAccess: time.Now(),
 			}
 			fs.opens[fullpath] = info
-			fs.closeOpens(false)
+			fs.closeOpens(false, map[string]bool{fullpath: true})
 		}
 
 		return info, nil

src/handlers/fileshdr/handlers.go

@@ -5,6 +5,7 @@ import (
 	"errors"
 	"fmt"
 	"io"
+	"net/http"
 	"os"
 	"path"
 	"path/filepath"
@@ -270,7 +271,7 @@ func (h *FileHandlers) UploadChunk(c *gin.Context) {
 			fsFilePath := h.FsPath(req.Path)
 			err = h.deps.FS().Rename(tmpFilePath, fsFilePath)
 			if err != nil {
-				c.JSON(q.ErrResp(c, 500, err))
+				c.JSON(q.ErrResp(c, 500, fmt.Errorf("%s error: %w", req.Path, err)))
 				return
 			}
 			err = h.uploadMgr.DelInfo(tmpFilePath)
@@ -328,43 +329,75 @@ func (h *FileHandlers) Download(c *gin.Context) {
 	filePath := c.Query(FilePathQuery)
 	if filePath == "" {
 		c.JSON(q.ErrResp(c, 400, errors.New("invalid file name")))
+		return
 	}
 
-	// concurrency relies on os's mechanism
+	// concurrently file accessing is managed by os
 	filePath = h.FsPath(filePath)
 	info, err := h.deps.FS().Stat(filePath)
 	if err != nil {
-		c.JSON(q.ErrResp(c, 400, err))
+		if os.IsNotExist(err) {
+			c.JSON(q.ErrResp(c, 400, os.ErrNotExist))
+		} else {
+			c.JSON(q.ErrResp(c, 500, err))
+		}
 		return
 	} else if info.IsDir() {
-		c.JSON(q.ErrResp(c, 501, errors.New("downloading a folder is not supported")))
+		c.JSON(q.ErrResp(c, 400, errors.New("downloading a folder is not supported")))
+		return
 	}
 
+	// https://golang.google.cn/pkg/net/http/#DetectContentType
+	// DetectContentType considers at most the first 512 bytes of data.
+	fileHeadBuf := make([]byte, 512)
+	read, err := h.deps.FS().ReadAt(filePath, fileHeadBuf, 0)
+	if err != nil && err != io.EOF {
+		c.JSON(q.ErrResp(c, 500, err))
+		return
+	}
+	contentType := http.DetectContentType(fileHeadBuf[:read])
+
 	r, err := h.deps.FS().GetFileReader(filePath)
 	if err != nil {
 		c.JSON(q.ErrResp(c, 500, err))
+		return
 	}
+	// defer r.Close()
+	//  :=	r.(*os.File)
 
 	// respond to normal requests
+	fmt.Println(ifRangeVal, rangeVal)
 	if ifRangeVal != "" || rangeVal == "" {
-		c.DataFromReader(200, info.Size(), "application/octet-stream", r, map[string]string{})
+		c.DataFromReader(200, info.Size(), contentType, r, map[string]string{})
 		return
 	}
 
 	// respond to range requests
-	parts, err := multipart.RangeToParts(rangeVal, "application/octet-stream", fmt.Sprintf("%d", info.Size()))
+	parts, err := multipart.RangeToParts(rangeVal, contentType, fmt.Sprintf("%d", info.Size()))
 	if err != nil {
-		c.JSON(q.ErrResp(c, 400, err))
+		c.JSON(q.ErrResp(c, 401, err))
+		return
 	}
-	pr, pw := io.Pipe()
+
-	err = multipart.WriteResponse(r, pw, filePath, parts)
+	// pr, pw := io.Pipe()
+	mw, contentLength, err := multipart.NewResponseWriter(r, parts, false)
 	if err != nil {
 		c.JSON(q.ErrResp(c, 500, err))
+		return
 	}
+
+	go mw.Write()
+	// WriteResponse(r, pw, filePath, parts)
+	// if err != nil {
+	// 	c.JSON(q.ErrResp(c, 500, err))
+	// 	return
+	// }
+
 	extraHeaders := map[string]string{
-		"Content-Disposition": fmt.Sprintf(`attachment; filename="%s"`, filePath),
+		// "Content-Disposition": fmt.Sprintf(`attachment; filename="%s"`, filePath),
 	}
-	c.DataFromReader(206, info.Size(), "application/octet-stream", pr, extraHeaders)
+	// it takes the \r\n before body into account, so contentLength+2
+	c.DataFromReader(206, contentLength+2, contentType, mw, extraHeaders)
 }
 
 type ListResp struct {
@@ -374,7 +407,7 @@ type ListResp struct {
 func (h *FileHandlers) List(c *gin.Context) {
 	dirPath := c.Query(ListDirQuery)
 	if dirPath == "" {
-		c.JSON(q.ErrResp(c, 400, errors.New("incorrect path name")))
+		c.JSON(q.ErrResp(c, 402, errors.New("incorrect path name")))
 		return
 	}
 

src/handlers/settings/handler.go

@@ -0,0 +1,26 @@
+package settings
+
+import (
+	"github.com/gin-gonic/gin"
+	"github.com/ihexxa/gocfg"
+
+	"github.com/ihexxa/quickshare/src/depidx"
+	q "github.com/ihexxa/quickshare/src/handlers"
+)
+
+type SettingsSvc struct {
+	cfg  gocfg.ICfg
+	deps *depidx.Deps
+}
+
+func NewSettingsSvc(cfg gocfg.ICfg, deps *depidx.Deps) (*SettingsSvc, error) {
+	return &SettingsSvc{
+		cfg:  cfg,
+		deps: deps,
+	}, nil
+}
+
+func (h *SettingsSvc) Health(c *gin.Context) {
+	// TODO: currently it checks nothing
+	c.JSON(q.Resp(200))
+}

src/handlers/singleuserhdr/middlewares.go

@@ -10,6 +10,11 @@ import (
 	q "github.com/ihexxa/quickshare/src/handlers"
 )
 
+var exposedAPIs = map[string]bool{
+	"Login-fm":  true,
+	"Health-fm": true,
+}
+
 func GetHandlerName(fullname string) (string, error) {
 	parts := strings.Split(fullname, ".")
 	if len(parts) == 0 {
@@ -28,7 +33,7 @@ func (h *SimpleUserHandlers) Auth() gin.HandlerFunc {
 
 		// TODO: may also check the path
 		enableAuth := h.cfg.GrabBool("Users.EnableAuth")
-		if enableAuth && handlerName != "Login-fm" {
+		if enableAuth && !exposedAPIs[handlerName] {
 			token, err := c.Cookie(TokenCookie)
 			if err != nil {
 				c.JSON(q.ErrResp(c, 401, err))

src/server/config.go

@@ -49,7 +49,7 @@ func DefaultConfig() (string, error) {
 			OpenTTL:    60, // 1 min
 		},
 		Users: &UsersCfg{
-			EnableAuth:      true,
+			EnableAuth:      false,
 			DefaultAdmin:    "",
 			DefaultAdminPwd: "",
 			CookieTTL:       3600 * 24 * 7, // 1 week

src/server/server.go

@@ -8,6 +8,7 @@ import (
 	"net/http"
 	"time"
 
+	"github.com/gin-contrib/static"
 	"github.com/gin-gonic/gin"
 	"github.com/ihexxa/gocfg"
 
@@ -16,6 +17,7 @@ import (
 	"github.com/ihexxa/quickshare/src/fs"
 	"github.com/ihexxa/quickshare/src/fs/local"
 	"github.com/ihexxa/quickshare/src/handlers/fileshdr"
+	"github.com/ihexxa/quickshare/src/handlers/settings"
 	"github.com/ihexxa/quickshare/src/handlers/singleuserhdr"
 	"github.com/ihexxa/quickshare/src/idgen/simpleidgen"
 	"github.com/ihexxa/quickshare/src/kvstore"
@@ -114,31 +116,41 @@ func initHandlers(router *gin.Engine, cfg gocfg.ICfg, deps *depidx.Deps) (*gin.E
 		return nil, err
 	}
 
+	settingsSvc, err := settings.NewSettingsSvc(cfg, deps)
+	if err != nil {
+		return nil, err
+	}
+
 	// middleware
 	router.Use(userHdrs.Auth())
+	// tmp static server
+	router.Use(static.Serve("/", static.LocalFile("../static", false)))
 
 	// handler
 	v1 := router.Group("/v1")
 
-	users := v1.Group("/users")
+	usersAPI := v1.Group("/users")
-	users.POST("/login", userHdrs.Login)
+	usersAPI.POST("/login", userHdrs.Login)
-	users.POST("/logout", userHdrs.Logout)
+	usersAPI.POST("/logout", userHdrs.Logout)
-	users.PATCH("/pwd", userHdrs.SetPwd)
+	usersAPI.PATCH("/pwd", userHdrs.SetPwd)
 
-	filesSvc := v1.Group("/fs")
+	filesAPI := v1.Group("/fs")
-	filesSvc.POST("/files", fileHdrs.Create)
+	filesAPI.POST("/files", fileHdrs.Create)
-	filesSvc.DELETE("/files", fileHdrs.Delete)
+	filesAPI.DELETE("/files", fileHdrs.Delete)
-	filesSvc.GET("/files", fileHdrs.Download)
+	filesAPI.GET("/files", fileHdrs.Download)
-	filesSvc.PATCH("/files/chunks", fileHdrs.UploadChunk)
+	filesAPI.PATCH("/files/chunks", fileHdrs.UploadChunk)
-	filesSvc.GET("/files/chunks", fileHdrs.UploadStatus)
+	filesAPI.GET("/files/chunks", fileHdrs.UploadStatus)
-	filesSvc.PATCH("/files/copy", fileHdrs.Copy)
+	filesAPI.PATCH("/files/copy", fileHdrs.Copy)
-	filesSvc.PATCH("/files/move", fileHdrs.Move)
+	filesAPI.PATCH("/files/move", fileHdrs.Move)
 
-	filesSvc.GET("/dirs", fileHdrs.List)
+	filesAPI.GET("/dirs", fileHdrs.List)
-	filesSvc.POST("/dirs", fileHdrs.Mkdir)
+	filesAPI.POST("/dirs", fileHdrs.Mkdir)
 	// files.POST("/dirs/copy", fileHdrs.CopyDir)
 
-	filesSvc.GET("/metadata", fileHdrs.Metadata)
+	filesAPI.GET("/metadata", fileHdrs.Metadata)
+
+	settingsAPI := v1.Group("/settings")
+	settingsAPI.OPTIONS("/health", settingsSvc.Health)
 
 	return router, nil
 }

src/server/server_files_test.go

@@ -3,11 +3,14 @@ package server
 import (
 	"crypto/sha1"
 	"fmt"
+	"math/rand"
+	"net/http"
 	"os"
 	"path"
 	"path/filepath"
+	"strings"
+	"sync"
 	"testing"
-	"time"
 
 	"github.com/ihexxa/quickshare/src/client"
 	"github.com/ihexxa/quickshare/src/handlers/fileshdr"
@@ -16,7 +19,6 @@ import (
 func TestFileHandlers(t *testing.T) {
 	addr := "http://127.0.0.1:8888"
 	root := "testData"
-	chunkSize := 2
 	config := `{
 		"users": {
 			"enableAuth": false
@@ -29,6 +31,7 @@ func TestFileHandlers(t *testing.T) {
 		}
 	}`
 
+	os.RemoveAll(root)
 	err := os.MkdirAll(root, 0700)
 	if err != nil {
 		t.Fatal(err)
@@ -37,17 +40,110 @@ func TestFileHandlers(t *testing.T) {
 
 	srv := startTestServer(config)
 	defer srv.Shutdown()
-	// kv := srv.depsKVStore()
 	fs := srv.depsFS()
 	cl := client.NewFilesClient(addr)
 
-	// TODO: remove this
+	if !waitForReady(addr) {
-	time.Sleep(500)
+		t.Fatal("fail to start server")
+	}
 
-	t.Run("test file APIs: Create-UploadChunk-UploadStatus-Metadata-Delete", func(t *testing.T) {
+	assertUploadOK := func(t *testing.T, filePath, content string) bool {
+		cl := client.NewFilesClient(addr)
+
+		fileSize := int64(len([]byte(content)))
+		res, _, errs := cl.Create(filePath, fileSize)
+		if len(errs) > 0 {
+			t.Error(errs)
+			return false
+		} else if res.StatusCode != 200 {
+			t.Error(res.StatusCode)
+			return false
+		}
+
+		res, _, errs = cl.UploadChunk(filePath, content, 0)
+		if len(errs) > 0 {
+			t.Error(errs)
+			return false
+		} else if res.StatusCode != 200 {
+			t.Error(res.StatusCode)
+			return false
+		}
+
+		return true
+	}
+
+	assetDownloadOK := func(t *testing.T, filePath, content string) bool {
+		var (
+			res      *http.Response
+			body     string
+			errs     []error
+			fileSize = int64(len([]byte(content)))
+		)
+
+		cl := client.NewFilesClient(addr)
+
+		rd := rand.Intn(3)
+		switch rd {
+		case 0:
+			res, body, errs = cl.Download(filePath, map[string]string{})
+		case 1:
+			res, body, errs = cl.Download(filePath, map[string]string{
+				"Range": fmt.Sprintf("bytes=0-%d", fileSize-1),
+			})
+		case 2:
+			res, body, errs = cl.Download(filePath, map[string]string{
+				"Range": fmt.Sprintf("bytes=0-%d, %d-%d", (fileSize-1)/2, (fileSize-1)/2+1, fileSize-1),
+			})
+		}
+
+		if len(errs) > 0 {
+			t.Error(errs)
+			return false
+		} else if res.StatusCode != 200 && res.StatusCode != 206 {
+			t.Error(res.StatusCode)
+			return false
+		}
+		switch rd {
+		case 0:
+			if body != content {
+				t.Errorf("body not equal got(%s) expect(%s)\n", body, content)
+				return false
+			}
+		case 1:
+
+			if body[2:] != content { // body returned by gorequest contains the first CRLF
+				t.Errorf("body not equal got(%s) expect(%s)\n", body[2:], content)
+				return false
+			}
+		default:
+			body = body[2:] // body returned by gorequest contains the first CRLF
+			realBody := ""
+			boundaryEnd := strings.Index(body, "\r\n")
+			boundary := body[0:boundaryEnd]
+			bodyParts := strings.Split(body, boundary)
+
+			for i, bodyPart := range bodyParts {
+				if i == 0 || i == len(bodyParts)-1 {
+					continue
+				}
+				start := strings.Index(bodyPart, "\r\n\r\n")
+
+				fmt.Printf("<%s>", bodyPart[start+4:len(bodyPart)-2]) // ignore the last CRLF
+				realBody += bodyPart[start+4 : len(bodyPart)-2]
+			}
+			if realBody != content {
+				t.Errorf("multi body not equal got(%s) expect(%s)\n", realBody, content)
+				return false
+			}
+		}
+
+		return true
+	}
+
+	t.Run("test files APIs: Create-UploadChunk-UploadStatus-Metadata-Delete", func(t *testing.T) {
 		for filePath, content := range map[string]string{
-			"path1/f1.md":       "11111",
+			"path1/f1.md":       "1111 1111 1111 1111",
-			"path1/path2/f2.md": "101010",
+			"path1/path2/f2.md": "1010 1010 1111 0000 0010",
 		} {
 			fileSize := int64(len([]byte(content)))
 			// create a file
@@ -71,7 +167,7 @@ func TestFileHandlers(t *testing.T) {
 			i := 0
 			contentBytes := []byte(content)
 			for i < len(contentBytes) {
-				right := i + chunkSize
+				right := i + rand.Intn(3) + 1
 				if right > len(contentBytes) {
 					right = len(contentBytes)
 				}
@@ -127,7 +223,7 @@ func TestFileHandlers(t *testing.T) {
 		}
 	})
 
-	t.Run("test file APIs: Mkdir-Create-UploadChunk-List", func(t *testing.T) {
+	t.Run("test dirs APIs: Mkdir-Create-UploadChunk-List", func(t *testing.T) {
 		for dirPath, files := range map[string]map[string]string{
 			"dir/path1/": map[string]string{
 				"f1.md": "11111",
@@ -146,22 +242,7 @@ func TestFileHandlers(t *testing.T) {
 
 			for fileName, content := range files {
 				filePath := filepath.Join(dirPath, fileName)
-
+				assertUploadOK(t, filePath, content)
-				fileSize := int64(len([]byte(content)))
-				// create a file
-				res, _, errs := cl.Create(filePath, fileSize)
-				if len(errs) > 0 {
-					t.Fatal(errs)
-				} else if res.StatusCode != 200 {
-					t.Fatal(res.StatusCode)
-				}
-
-				res, _, errs = cl.UploadChunk(filePath, content, 0)
-				if len(errs) > 0 {
-					t.Fatal(errs)
-				} else if res.StatusCode != 200 {
-					t.Fatal(res.StatusCode)
-				}
 			}
 
 			_, lResp, errs := cl.List(dirPath)
@@ -179,7 +260,7 @@ func TestFileHandlers(t *testing.T) {
 		}
 	})
 
-	t.Run("test file APIs: Mkdir-Create-UploadChunk-Move-List", func(t *testing.T) {
+	t.Run("test operation APIs: Mkdir-Create-UploadChunk-Move-List", func(t *testing.T) {
 		srcDir := "move/src"
 		dstDir := "move/dst"
 
@@ -200,24 +281,10 @@ func TestFileHandlers(t *testing.T) {
 		for fileName, content := range files {
 			oldPath := filepath.Join(srcDir, fileName)
 			newPath := filepath.Join(dstDir, fileName)
-			fileSize := int64(len([]byte(content)))
+			// fileSize := int64(len([]byte(content)))
+			assertUploadOK(t, oldPath, content)
 
-			// create a file
+			res, _, errs := cl.Move(oldPath, newPath)
-			res, _, errs := cl.Create(oldPath, fileSize)
-			if len(errs) > 0 {
-				t.Fatal(errs)
-			} else if res.StatusCode != 200 {
-				t.Fatal(res.StatusCode)
-			}
-
-			res, _, errs = cl.UploadChunk(oldPath, content, 0)
-			if len(errs) > 0 {
-				t.Fatal(errs)
-			} else if res.StatusCode != 200 {
-				t.Fatal(res.StatusCode)
-			}
-
-			res, _, errs = cl.Move(oldPath, newPath)
 			if len(errs) > 0 {
 				t.Fatal(errs)
 			} else if res.StatusCode != 200 {
@@ -238,4 +305,69 @@ func TestFileHandlers(t *testing.T) {
 			}
 		}
 	})
+
+	t.Run("test download APIs: Download(normal, ranges)", func(t *testing.T) {
+		for filePath, content := range map[string]string{
+			"download/path1/f1":    "123456",
+			"download/path1/path2": "12345678",
+		} {
+			assertUploadOK(t, filePath, content)
+
+			err = fs.Sync()
+			if err != nil {
+				t.Fatal(err)
+			}
+
+			assetDownloadOK(t, filePath, content)
+		}
+	})
+
+	t.Run("test concurrently uploading & downloading", func(t *testing.T) {
+		type mockFile struct {
+			FilePath string
+			Content  string
+		}
+		wg := &sync.WaitGroup{}
+
+		startClient := func(files []*mockFile) {
+			for i := 0; i < 5; i++ {
+				for _, file := range files {
+					if !assertUploadOK(t, fmt.Sprintf("%s_%d", file.FilePath, i), file.Content) {
+						break
+					}
+
+					err = fs.Sync()
+					if err != nil {
+						t.Fatal(err)
+					}
+
+					if !assetDownloadOK(t, fmt.Sprintf("%s_%d", file.FilePath, i), file.Content) {
+						break
+					}
+				}
+			}
+
+			wg.Done()
+		}
+
+		for _, clientFiles := range [][]*mockFile{
+			[]*mockFile{
+				&mockFile{"concurrent/p0/f0", "00"},
+				&mockFile{"concurrent/f0.md", "0000 0000 0000 0"},
+			},
+			[]*mockFile{
+				&mockFile{"concurrent/p1/f1", "11"},
+				&mockFile{"concurrent/f1.md", "1111 1111 1"},
+			},
+			[]*mockFile{
+				&mockFile{"concurrent/p2/f2", "22"},
+				&mockFile{"concurrent/f2.md", "222"},
+			},
+		} {
+			wg.Add(1)
+			go startClient(clientFiles)
+		}
+
+		wg.Wait()
+	})
 }

src/server/server_singleuser_test.go

@@ -3,7 +3,6 @@ package server
 import (
 	"os"
 	"testing"
-	"time"
 
 	"github.com/ihexxa/quickshare/src/client"
 	su "github.com/ihexxa/quickshare/src/handlers/singleuserhdr"
@@ -29,6 +28,7 @@ func TestSingleUserHandlers(t *testing.T) {
 	os.Setenv("DEFAULTADMIN", adminName)
 	os.Setenv("DEFAULTADMINPWD", adminPwd)
 
+	os.RemoveAll(root)
 	err := os.MkdirAll(root, 0700)
 	if err != nil {
 		t.Fatal(err)
@@ -39,10 +39,10 @@ func TestSingleUserHandlers(t *testing.T) {
 	defer srv.Shutdown()
 
 	suCl := client.NewSingleUserClient(addr)
-	// fCl := client.NewFilesClient(addr)
 
-	// TODO: remove this
+	if !waitForReady(addr) {
-	time.Sleep(1000)
+		t.Fatal("fail to start server")
+	}
 
 	t.Run("test single user APIs: Login-SetPwd-Logout-Login", func(t *testing.T) {
 		resp, _, errs := suCl.Login(adminName, adminPwd)

src/server/test_helpers.go

@@ -1,6 +1,11 @@
 package server
 
-import "github.com/ihexxa/gocfg"
+import (
+	"time"
+
+	"github.com/ihexxa/gocfg"
+	"github.com/ihexxa/quickshare/src/client"
+)
 
 func startTestServer(config string) *Server {
 	defaultCfg, err := DefaultConfig()
@@ -25,3 +30,20 @@ func startTestServer(config string) *Server {
 	go srv.Start()
 	return srv
 }
+
+func waitForReady(addr string) bool {
+	retry := 10
+	setCl := client.NewSettingsClient(addr)
+
+	for retry > 0 {
+		_, _, errs := setCl.Health()
+		if len(errs) > 0 {
+			time.Sleep(100)
+		} else {
+			return true
+		}
+		retry--
+	}
+
+	return false
+}