browser supports copy detection

1 files changed, 26 insertions, 0 deletions

diff --git a/modules/middleware/repo.go b/modules/middleware/repo.go
index a200d6d66f..e8a362bd4d 100644
--- a/modules/middleware/repo.go
+++ b/modules/middleware/repo.go
@@ -16,6 +16,14 @@ import (
 	"github.com/gogits/gogs/modules/git"
 	"github.com/gogits/gogs/modules/log"
 	"github.com/gogits/gogs/modules/setting"
+
+	"github.com/hashicorp/go-version"
+	"github.com/mssola/user_agent"
+)
+
+const (
+	FIREFOX_COPY_SUPPORT = "41.0"
+	CHROME_COPY_SUPPORT = "43.0.2356"
 )
 
 func ApiRepoAssignment() macaron.Handler {
@@ -345,6 +353,24 @@ func RepoAssignment(redirect bool, args ...bool) macaron.Handler {
 
 		ctx.Data["BranchName"] = ctx.Repo.BranchName
 		ctx.Data["CommitId"] = ctx.Repo.CommitId
+
+		userAgent := ctx.Req.Header.Get("User-Agent")
+		ua := user_agent.New(userAgent);
+		browserName, browserVer := ua.Browser()
+
+		sliceVer := strings.Split(browserVer, ".")
+		var max int
+		if max = len(sliceVer); 3 < max {
+			max = 3
+		}
+		browserVer = strings.Join(sliceVer[:max], ".")
+
+		browserVersion, err := version.NewVersion(browserVer)
+		chromeConstraint, err := version.NewConstraint(">= " + CHROME_COPY_SUPPORT)
+		firefoxConstraint, err := version.NewConstraint(">= " + FIREFOX_COPY_SUPPORT)
+
+		ctx.Data["BrowserSupportsCopy"] = (browserName == "Chrome" && chromeConstraint.Check(browserVersion)) || (browserName == "Firefox" && firefoxConstraint.Check(browserVersion))
+
 	}
 }