repo: support avatars (#5221)

* First code for repository avatars

* Last code for repository avatars

- add new option for repo avatars location on filesystem
- add route catch in web
- add new fields to repo model
- add migration
- update settings handlers
- update repo header template

* Update locale messages

* Add repo avatars to home page

* Add repo avatars to organization right panel

* Show repo avatars in repo list

* Remove AvatarEamil field, remove Gravatar support, use generic locale messages

* Fix migration

* Fix seed and not used tool

* Revert public css changes, add them to less files

* Latest lessc (2.6.0) don't put result into file but output to stdout

So redirect output to file

* Simplify things:

- migration don't needed, and table changes too
- just upload file to repo avatar storage
- or generate random image

* Fix repo image seed - name not unique

* Get rid of not needed model fields

* Class value is enough, remove height attribute

* Don't generate random avatar for repository

- use html and semantic ui icons if no avatar found

* Update styles and templates for repo

- use repo icon as default avatar
- use globe icon for public repos
- add micro style for repo avatars at dashboard

* Remvoe redundant empty line

* Fix nl2br filter - must return string

* Fix css style for micro-repo-avatar in dashboard list

* Remove `|len`, works fine w/o it.

* Update after review 2:

- use static route for repository avatar
- format images settings block in settings

* Update after review 2:

- no random avatar for repo

* Update after review 2:

- no random avatar for repo 2
- update imports
- update UploadAvatar* functions

* Update after review 2:

- update templates

* Fix trace call

* Remove unused immport since we use static route for repo avatars.

1 files changed, 57 insertions, 1 deletions

diff --git a/routes/repo/setting.go b/routes/repo/setting.go
index 0b0f294d..da9d8fe4 100644
--- a/routes/repo/setting.go
+++ b/routes/repo/setting.go
@@ -8,9 +8,10 @@ import (
 	"fmt"
 	"strings"
 	"time"
+	"io/ioutil"
 
 	log "gopkg.in/clog.v1"
-
+	"github.com/Unknwon/com"
 	"github.com/gogs/git-module"
 
 	"github.com/gogs/gogs/models"
@@ -19,10 +20,12 @@ import (
 	"github.com/gogs/gogs/pkg/form"
 	"github.com/gogs/gogs/pkg/mailer"
 	"github.com/gogs/gogs/pkg/setting"
+	"github.com/gogs/gogs/pkg/tool"
 )
 
 const (
 	SETTINGS_OPTIONS          = "repo/settings/options"
+	SETTINGS_REPO_AVATAR      = "repo/settings/avatar"
 	SETTINGS_COLLABORATION    = "repo/settings/collaboration"
 	SETTINGS_BRANCHES         = "repo/settings/branches"
 	SETTINGS_PROTECTED_BRANCH = "repo/settings/protected_branch"
@@ -632,3 +635,56 @@ func DeleteDeployKey(c *context.Context) {
 		"redirect": c.Repo.RepoLink + "/settings/keys",
 	})
 }
+
+func SettingsAvatar(c *context.Context) {
+	c.Title("settings.avatar")
+	c.PageIs("SettingsAvatar")
+	c.Success(SETTINGS_REPO_AVATAR)
+}
+
+func SettingsAvatarPost(c *context.Context, f form.Avatar) {
+	f.Source = form.AVATAR_LOCAL
+	if err := UpdateAvatarSetting(c, f); err != nil {
+		c.Flash.Error(err.Error())
+	} else {
+		c.Flash.Success(c.Tr("settings.update_avatar_success"))
+	}
+	c.SubURLRedirect(c.Repo.RepoLink + "/settings")
+}
+
+func SettingsDeleteAvatar(c *context.Context) {
+	if err := c.Repo.Repository.DeleteAvatar(); err != nil {
+		c.Flash.Error(fmt.Sprintf("DeleteAvatar: %v", err))
+	}
+	c.SubURLRedirect(c.Repo.RepoLink + "/settings")
+}
+
+// FIXME: limit size.
+func UpdateAvatarSetting(c *context.Context, f form.Avatar) error {
+	ctxRepo := c.Repo.Repository;
+	if f.Avatar != nil {
+		r, err := f.Avatar.Open()
+		if err != nil {
+			return fmt.Errorf("Avatar.Open: %v", err)
+		}
+		defer r.Close()
+
+		data, err := ioutil.ReadAll(r)
+		if err != nil {
+			return fmt.Errorf("ioutil.ReadAll: %v", err)
+		}
+		if !tool.IsImageFile(data) {
+			return errors.New(c.Tr("settings.uploaded_avatar_not_a_image"))
+		}
+		if err = ctxRepo.UploadAvatar(data); err != nil {
+			return fmt.Errorf("UploadAvatar: %v", err)
+		}
+	} else {
+		// No avatar is uploaded but setting has been changed to enable
+		// No random avatar here.
+		if !com.IsFile(ctxRepo.CustomAvatarPath()) {
+			log.Trace("No avatar was uploaded for repo: %d. Default icon will appear instead.", ctxRepo.ID)
+		}
+	}
+	return nil
+}