Feat: dynamic writing site title, favicon, description, custom html (#286)

assets @ b44dc051

-Subproject commit 63ee122d977284e3ccf20f4c1ed228584e705c4d
+Subproject commit b44dc0514520580fc284937400743123bbb2c6d4

middleware/option.go

 package middleware
 
 import (
+	"github.com/HFO4/cloudreve/bootstrap"
 	model "github.com/HFO4/cloudreve/models"
 	"github.com/HFO4/cloudreve/pkg/hashid"
 	"github.com/HFO4/cloudreve/pkg/serializer"
+	"github.com/HFO4/cloudreve/pkg/util"
 	"github.com/gin-gonic/gin"
+	"io/ioutil"
 )
 
 // HashID 将给定对象的HashID转换为真实ID
@@ -38,3 +41,43 @@ func IsFunctionEnabled(key string) gin.HandlerFunc {
 		c.Next()
 	}
 }
+
+// InjectSiteInfo 向首页html中插入站点信息
+func InjectSiteInfo() gin.HandlerFunc {
+	ignoreFunc := func(c *gin.Context) {
+		c.Next()
+	}
+	// 读取index.html
+	file, err := bootstrap.StaticFS.Open("/index.html")
+	if err != nil {
+		util.Log().Warning("静态文件[index.html]不存在，可能会影响首页展示")
+		return ignoreFunc
+	}
+
+	fileContentBytes, err := ioutil.ReadAll(file)
+	if err != nil {
+		util.Log().Warning("静态文件[index.html]读取失败，可能会影响首页展示")
+		return ignoreFunc
+	}
+	fileContent := string(fileContentBytes)
+
+	return func(c *gin.Context) {
+		if c.Request.URL.Path == "/" || c.Request.URL.Path == "/index.html" {
+			// 读取、替换站点设置
+			options := model.GetSettingByNames("siteName", "siteKeywords", "siteScript",
+				"pwa_small_icon")
+			finalHTML := util.Replace(map[string]string{
+				"{siteName}":       options["siteName"],
+				"{siteDes}":        options["siteDes"],
+				"{siteScript}":     options["siteScript"],
+				"{pwa_small_icon}": options["pwa_small_icon"],
+			}, fileContent)
+
+			c.Header("Content-Type", "text/html")
+			c.String(200, finalHTML)
+			c.Abort()
+			return
+		}
+		c.Next()
+	}
+}

middleware/option_test.go

 package middleware
 
 import (
+	"errors"
+	"github.com/HFO4/cloudreve/bootstrap"
 	"github.com/HFO4/cloudreve/pkg/cache"
 	"github.com/HFO4/cloudreve/pkg/hashid"
+	"github.com/HFO4/cloudreve/pkg/util"
 	"github.com/gin-gonic/gin"
 	"github.com/stretchr/testify/assert"
+	testMock "github.com/stretchr/testify/mock"
 	"net/http"
 	"net/http/httptest"
+	"os"
 	"testing"
 )
 
@@ -75,3 +80,96 @@ func TestIsFunctionEnabled(t *testing.T) {
 	}
 
 }
+
+type StaticMock struct {
+	testMock.Mock
+}
+
+func (m StaticMock) Open(name string) (http.File, error) {
+	args := m.Called(name)
+	return args.Get(0).(http.File), args.Error(1)
+}
+
+func (m StaticMock) Exists(prefix string, filepath string) bool {
+	args := m.Called(prefix, filepath)
+	return args.Bool(0)
+}
+
+func TestInjectSiteInfo(t *testing.T) {
+	asserts := assert.New(t)
+	rec := httptest.NewRecorder()
+
+	// index.html 不存在
+	{
+		testStatic := &StaticMock{}
+		bootstrap.StaticFS = testStatic
+		testStatic.On("Open", "/index.html").
+			Return(&os.File{}, errors.New("error"))
+		TestFunc := InjectSiteInfo()
+
+		c, _ := gin.CreateTestContext(rec)
+		c.Params = []gin.Param{}
+		c.Request, _ = http.NewRequest("GET", "/", nil)
+		TestFunc(c)
+		asserts.False(c.IsAborted())
+	}
+
+	// index.html 读取失败
+	{
+		file, _ := util.CreatNestedFile("tests/index.html")
+		file.Close()
+		testStatic := &StaticMock{}
+		bootstrap.StaticFS = testStatic
+		testStatic.On("Open", "/index.html").
+			Return(file, nil)
+		TestFunc := InjectSiteInfo()
+
+		c, _ := gin.CreateTestContext(rec)
+		c.Params = []gin.Param{}
+		c.Request, _ = http.NewRequest("GET", "/", nil)
+		TestFunc(c)
+		asserts.False(c.IsAborted())
+	}
+
+	// 成功且命中
+	{
+		file, _ := util.CreatNestedFile("tests/index.html")
+		defer file.Close()
+		testStatic := &StaticMock{}
+		bootstrap.StaticFS = testStatic
+		testStatic.On("Open", "/index.html").
+			Return(file, nil)
+		TestFunc := InjectSiteInfo()
+
+		c, _ := gin.CreateTestContext(rec)
+		c.Params = []gin.Param{}
+		c.Request, _ = http.NewRequest("GET", "/", nil)
+
+		cache.Set("setting_siteName", "cloudreve", 0)
+		cache.Set("setting_siteKeywords", "cloudreve", 0)
+		cache.Set("setting_siteScript", "cloudreve", 0)
+		cache.Set("setting_pwa_small_icon", "cloudreve", 0)
+
+		TestFunc(c)
+		asserts.True(c.IsAborted())
+	}
+
+	// 成功且未命中
+	{
+		file, _ := util.CreatNestedFile("tests/index.html")
+		defer file.Close()
+		testStatic := &StaticMock{}
+		bootstrap.StaticFS = testStatic
+		testStatic.On("Open", "/index.html").
+			Return(file, nil)
+		TestFunc := InjectSiteInfo()
+
+		c, _ := gin.CreateTestContext(rec)
+		c.Params = []gin.Param{}
+		c.Request, _ = http.NewRequest("GET", "/2", nil)
+
+		TestFunc(c)
+		asserts.False(c.IsAborted())
+	}
+
+}

models/migration.go

@@ -82,6 +82,7 @@ func addDefaultSettings() {
 		{Name: "siteKeywords", Value: `网盘，网盘`, Type: "basic"},
 		{Name: "siteDes", Value: `Cloudreve`, Type: "basic"},
 		{Name: "siteTitle", Value: `平步云端`, Type: "basic"},
+		{Name: "siteScript", Value: ``, Type: "basic"},
 		{Name: "fromName", Value: `Cloudreve`, Type: "mail"},
 		{Name: "mail_keepalive", Value: `30`, Type: "mail"},
 		{Name: "fromAdress", Value: `no-reply@acg.blue`, Type: "mail"},

routers/router.go

@@ -82,6 +82,7 @@ func InitMasterRouter() *gin.Engine {
 		静态资源
 	*/
 	r.Use(gzip.Gzip(gzip.DefaultCompression, gzip.WithExcludedPaths([]string{"/api/"})))
+	r.Use(middleware.InjectSiteInfo())
 	r.Use(static.Serve("/", bootstrap.StaticFS))
 	r.GET("manifest.json", controllers.Manifest)