Git LFS support v2 (#122)

* Import github.com/git-lfs/lfs-test-server as lfs module base

Imported commit is 3968aac269a77b73924649b9412ae03f7ccd3198

Removed:

Dockerfile CONTRIBUTING.md mgmt* script/ vendor/ kvlogger.go
.dockerignore .gitignore README.md

* Remove config, add JWT support from github.com/mgit-at/lfs-test-server

Imported commit f0cdcc5a01599c5a955dc1bbf683bb4acecdba83

* Add LFS settings

* Add LFS meta object model

* Add LFS routes and initialization

* Import github.com/dgrijalva/jwt-go into vendor/

* Adapt LFS module: handlers, routing, meta store

* Move LFS routes to /user/repo/info/lfs/*

* Add request header checks to LFS BatchHandler / PostHandler

* Implement LFS basic authentication

* Rework JWT secret generation / load

* Implement LFS SSH token authentication with JWT

Specification: https://github.com/github/git-lfs/tree/master/docs/api

* Integrate LFS settings into install process

* Remove LFS objects when repository is deleted

Only removes objects from content store when deleted repo is the only
referencing repository

* Make LFS module stateless

Fixes bug where LFS would not work after installation without
restarting Gitea

* Change 500 'Internal Server Error' to 400 'Bad Request'

* Change sql query to xorm call

* Remove unneeded type from LFS module

* Change internal imports to code.gitea.io/gitea/

* Add Gitea authors copyright

* Change basic auth realm to "gitea-lfs"

* Add unique indexes to LFS model

* Use xorm count function in LFS check on repository delete

* Return io.ReadCloser from content store and close after usage

* Add LFS info to runWeb()

* Export LFS content store base path

* LFS file download from UI

* Work around git-lfs client issue with unauthenticated requests

Returning a dummy Authorization header for unauthenticated requests
lets git-lfs client skip asking for auth credentials
See: https://github.com/github/git-lfs/issues/1088

* Fix unauthenticated UI downloads from public repositories

* Authentication check order, Finish LFS file view logic

* Ignore LFS hooks if installed for current OS user

Fixes Gitea UI actions for repositories tracking LFS files.
Checks for minimum needed git version by parsing the semantic version
string.

* Hide LFS metafile diff from commit view, marking as binary

* Show LFS notice if file in commit view is tracked

* Add notbefore/nbf JWT claim

* Correct lint suggestions - comments for structs and functions

- Add comments to LFS model
- Function comment for GetRandomBytesAsBase64
- LFS server function comments and lint variable suggestion

* Move secret generation code out of conditional

Ensures no LFS code may run with an empty secret

* Do not hand out JWT tokens if LFS server support is disabled

3 files changed, 8 insertions, 3 deletions

diff --git a/templates/install.tmpl b/templates/install.tmpl
index 44851c96fd..027d06166b 100644
--- a/templates/install.tmpl
+++ b/templates/install.tmpl
@@ -84,6 +84,11 @@
 						<input id="repo_root_path" name="repo_root_path" value="{{.repo_root_path}}" required>
 						<span class="help">{{.i18n.Tr "install.repo_path_helper"}}</span>
 					</div>
+					<div class="inline field {{if .Err_LFSRootPath}}error{{end}}">
+          	<label for="lfs_root_path">{{.i18n.Tr "install.lfs_path"}}</label>
+          	<input id="lfs_root_path" name="lfs_root_path" value="{{.lfs_root_path}}">
+          	<span class="help">{{.i18n.Tr "install.lfs_path_helper"}}</span>
+          </div>
 					<div class="inline required field {{if .Err_RunUser}}error{{end}}">
 						<label for="run_user">{{.i18n.Tr "install.run_user"}}</label>
 						<input id="run_user" name="run_user" value="{{.run_user}}" required>
diff --git a/templates/repo/diff/box.tmpl b/templates/repo/diff/box.tmpl
index 4f6c70a328..8ee4a001ce 100644
--- a/templates/repo/diff/box.tmpl
+++ b/templates/repo/diff/box.tmpl
@@ -66,7 +66,7 @@
 							<span class="del" data-line="{{.Deletion}}">- {{.Deletion}}</span>
 						{{end}}
 					</div>
-					<span class="file">{{if $file.IsRenamed}}{{$file.OldName}} &rarr; {{end}}{{$file.Name}}</span>
+					<span class="file">{{if $file.IsRenamed}}{{$file.OldName}} &rarr; {{end}}{{$file.Name}}{{if .IsLFSFile}} ({{$.i18n.Tr "repo.stored_lfs"}}){{end}}</span>
 					{{if not $file.IsSubmodule}}
 						<div class="ui right">
 							{{if $file.IsDeleted}}
diff --git a/templates/repo/view_file.tmpl b/templates/repo/view_file.tmpl
index 08d77c3f37..9382bb075e 100644
--- a/templates/repo/view_file.tmpl
+++ b/templates/repo/view_file.tmpl
@@ -5,11 +5,11 @@
 			{{if .ReadmeInList}}
 				<strong>{{.FileName}}</strong>
 			{{else}}
-				<strong>{{.FileName}}</strong> <span class="text grey normal">{{FileSize .FileSize}}</span>
+				<strong>{{.FileName}}</strong> <span class="text grey normal">{{FileSize .FileSize}}{{if .IsLFSFile}} ({{.i18n.Tr "repo.stored_lfs"}}){{end}}</span>
 			{{end}}
 		{{else}}
 			<i class="file text outline icon ui left"></i>
-			<strong>{{.FileName}}</strong> <span class="text grey normal">{{FileSize .FileSize}}</span>
+			<strong>{{.FileName}}</strong> <span class="text grey normal">{{FileSize .FileSize}}{{if .IsLFSFile}} ({{.i18n.Tr "repo.stored_lfs"}}){{end}}</span>
 		{{end}}
 		{{if not .ReadmeInList}}
 			<div class="ui right file-actions">