18 files changed, 2390 insertions, 0 deletions
diff --git a/vendor/gitea.com/go-chi/session/.drone.yml b/vendor/gitea.com/go-chi/session/.drone.yml
new file mode 100644
index 0000000000..d941e57505
--- /dev/null
+++ b/vendor/gitea.com/go-chi/session/.drone.yml
@@ -0,0 +1,37 @@
+---
+kind: pipeline
+name: test
+
+platform:
+  os: linux
+  arch: amd64
+
+clone:
+  disable: true
+
+workspace:
+  base: /go
+  path: src/session113
+
+steps:
+- name: git
+  pull: default
+  image: plugins/git:next
+  settings:
+    depth: 50
+    tags: true
+
+- name: test
+  pull: default
+  image: golang:1.13
+  environment:
+    GO111MODULE: on
+    GOPROXY: https://goproxy.cn
+  commands:
+    - go build -v
+    - go vet ./...
+    - go test -v -race -coverprofile=coverage.txt -covermode=atomic
+  when:
+    event:
+    - push
+    - pull_request
+\ No newline at end of file
diff --git a/vendor/gitea.com/go-chi/session/.gitignore b/vendor/gitea.com/go-chi/session/.gitignore
new file mode 100644
index 0000000000..834722925c
--- /dev/null
+++ b/vendor/gitea.com/go-chi/session/.gitignore
@@ -0,0 +1,4 @@
+ledis/tmp.db
+nodb/tmp.db
+/vendor
+/.idea
diff --git a/vendor/gitea.com/go-chi/session/LICENSE b/vendor/gitea.com/go-chi/session/LICENSE
new file mode 100644
index 0000000000..8405e89a0b
--- /dev/null
+++ b/vendor/gitea.com/go-chi/session/LICENSE
@@ -0,0 +1,191 @@
+Apache License
+Version 2.0, January 2004
+http://www.apache.org/licenses/
+
+TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+1. Definitions.
+
+"License" shall mean the terms and conditions for use, reproduction, and
+distribution as defined by Sections 1 through 9 of this document.
+
+"Licensor" shall mean the copyright owner or entity authorized by the copyright
+owner that is granting the License.
+
+"Legal Entity" shall mean the union of the acting entity and all other entities
+that control, are controlled by, or are under common control with that entity.
+For the purposes of this definition, "control" means (i) the power, direct or
+indirect, to cause the direction or management of such entity, whether by
+contract or otherwise, or (ii) ownership of fifty percent (50%) or more of the
+outstanding shares, or (iii) beneficial ownership of such entity.
+
+"You" (or "Your") shall mean an individual or Legal Entity exercising
+permissions granted by this License.
+
+"Source" form shall mean the preferred form for making modifications, including
+but not limited to software source code, documentation source, and configuration
+files.
+
+"Object" form shall mean any form resulting from mechanical transformation or
+translation of a Source form, including but not limited to compiled object code,
+generated documentation, and conversions to other media types.
+
+"Work" shall mean the work of authorship, whether in Source or Object form, made
+available under the License, as indicated by a copyright notice that is included
+in or attached to the work (an example is provided in the Appendix below).
+
+"Derivative Works" shall mean any work, whether in Source or Object form, that
+is based on (or derived from) the Work and for which the editorial revisions,
+annotations, elaborations, or other modifications represent, as a whole, an
+original work of authorship. For the purposes of this License, Derivative Works
+shall not include works that remain separable from, or merely link (or bind by
+name) to the interfaces of, the Work and Derivative Works thereof.
+
+"Contribution" shall mean any work of authorship, including the original version
+of the Work and any modifications or additions to that Work or Derivative Works
+thereof, that is intentionally submitted to Licensor for inclusion in the Work
+by the copyright owner or by an individual or Legal Entity authorized to submit
+on behalf of the copyright owner. For the purposes of this definition,
+"submitted" means any form of electronic, verbal, or written communication sent
+to the Licensor or its representatives, including but not limited to
+communication on electronic mailing lists, source code control systems, and
+issue tracking systems that are managed by, or on behalf of, the Licensor for
+the purpose of discussing and improving the Work, but excluding communication
+that is conspicuously marked or otherwise designated in writing by the copyright
+owner as "Not a Contribution."
+
+"Contributor" shall mean Licensor and any individual or Legal Entity on behalf
+of whom a Contribution has been received by Licensor and subsequently
+incorporated within the Work.
+
+2. Grant of Copyright License.
+
+Subject to the terms and conditions of this License, each Contributor hereby
+grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free,
+irrevocable copyright license to reproduce, prepare Derivative Works of,
+publicly display, publicly perform, sublicense, and distribute the Work and such
+Derivative Works in Source or Object form.
+
+3. Grant of Patent License.
+
+Subject to the terms and conditions of this License, each Contributor hereby
+grants to You a perpetual, worldwide, non-exclusive, no-charge, royalty-free,
+irrevocable (except as stated in this section) patent license to make, have
+made, use, offer to sell, sell, import, and otherwise transfer the Work, where
+such license applies only to those patent claims licensable by such Contributor
+that are necessarily infringed by their Contribution(s) alone or by combination
+of their Contribution(s) with the Work to which such Contribution(s) was
+submitted. If You institute patent litigation against any entity (including a
+cross-claim or counterclaim in a lawsuit) alleging that the Work or a
+Contribution incorporated within the Work constitutes direct or contributory
+patent infringement, then any patent licenses granted to You under this License
+for that Work shall terminate as of the date such litigation is filed.
+
+4. Redistribution.
+
+You may reproduce and distribute copies of the Work or Derivative Works thereof
+in any medium, with or without modifications, and in Source or Object form,
+provided that You meet the following conditions:
+
+You must give any other recipients of the Work or Derivative Works a copy of
+this License; and
+You must cause any modified files to carry prominent notices stating that You
+changed the files; and
+You must retain, in the Source form of any Derivative Works that You distribute,
+all copyright, patent, trademark, and attribution notices from the Source form
+of the Work, excluding those notices that do not pertain to any part of the
+Derivative Works; and
+If the Work includes a "NOTICE" text file as part of its distribution, then any
+Derivative Works that You distribute must include a readable copy of the
+attribution notices contained within such NOTICE file, excluding those notices
+that do not pertain to any part of the Derivative Works, in at least one of the
+following places: within a NOTICE text file distributed as part of the
+Derivative Works; within the Source form or documentation, if provided along
+with the Derivative Works; or, within a display generated by the Derivative
+Works, if and wherever such third-party notices normally appear. The contents of
+the NOTICE file are for informational purposes only and do not modify the
+License. You may add Your own attribution notices within Derivative Works that
+You distribute, alongside or as an addendum to the NOTICE text from the Work,
+provided that such additional attribution notices cannot be construed as
+modifying the License.
+You may add Your own copyright statement to Your modifications and may provide
+additional or different license terms and conditions for use, reproduction, or
+distribution of Your modifications, or for any such Derivative Works as a whole,
+provided Your use, reproduction, and distribution of the Work otherwise complies
+with the conditions stated in this License.
+
+5. Submission of Contributions.
+
+Unless You explicitly state otherwise, any Contribution intentionally submitted
+for inclusion in the Work by You to the Licensor shall be under the terms and
+conditions of this License, without any additional terms or conditions.
+Notwithstanding the above, nothing herein shall supersede or modify the terms of
+any separate license agreement you may have executed with Licensor regarding
+such Contributions.
+
+6. Trademarks.
+
+This License does not grant permission to use the trade names, trademarks,
+service marks, or product names of the Licensor, except as required for
+reasonable and customary use in describing the origin of the Work and
+reproducing the content of the NOTICE file.
+
+7. Disclaimer of Warranty.
+
+Unless required by applicable law or agreed to in writing, Licensor provides the
+Work (and each Contributor provides its Contributions) on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied,
+including, without limitation, any warranties or conditions of TITLE,
+NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A PARTICULAR PURPOSE. You are
+solely responsible for determining the appropriateness of using or
+redistributing the Work and assume any risks associated with Your exercise of
+permissions under this License.
+
+8. Limitation of Liability.
+
+In no event and under no legal theory, whether in tort (including negligence),
+contract, or otherwise, unless required by applicable law (such as deliberate
+and grossly negligent acts) or agreed to in writing, shall any Contributor be
+liable to You for damages, including any direct, indirect, special, incidental,
+or consequential damages of any character arising as a result of this License or
+out of the use or inability to use the Work (including but not limited to
+damages for loss of goodwill, work stoppage, computer failure or malfunction, or
+any and all other commercial damages or losses), even if such Contributor has
+been advised of the possibility of such damages.
+
+9. Accepting Warranty or Additional Liability.
+
+While redistributing the Work or Derivative Works thereof, You may choose to
+offer, and charge a fee for, acceptance of support, warranty, indemnity, or
+other liability obligations and/or rights consistent with this License. However,
+in accepting such obligations, You may act only on Your own behalf and on Your
+sole responsibility, not on behalf of any other Contributor, and only if You
+agree to indemnify, defend, and hold each Contributor harmless for any liability
+incurred by, or claims asserted against, such Contributor by reason of your
+accepting any such warranty or additional liability.
+
+END OF TERMS AND CONDITIONS
+
+APPENDIX: How to apply the Apache License to your work
+
+To apply the Apache License to your work, attach the following boilerplate
+notice, with the fields enclosed by brackets "[]" replaced with your own
+identifying information. (Don't include the brackets!) The text should be
+enclosed in the appropriate comment syntax for the file format. We also
+recommend that a file or class name and description of purpose be included on
+the same "printed page" as the copyright notice for easier identification within
+third-party archives.
+
+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+\ No newline at end of file
diff --git a/vendor/gitea.com/go-chi/session/README.md b/vendor/gitea.com/go-chi/session/README.md
new file mode 100644
index 0000000000..ed3258fcef
--- /dev/null
+++ b/vendor/gitea.com/go-chi/session/README.md
@@ -0,0 +1,17 @@
+# Session
+
+Middleware session provides session management which copied from [Macaron Session](https://gitea.com/go-chi/session) for [go-chi](https://github.com/go-chi/chi). It can use many session providers, including memory, file, Redis, Memcache, PostgreSQL, MySQL, Couchbase, Ledis and Nodb.
+
+## Installation
+
+```
+go get gitea.com/go-chi/session
+```
+
+## Credits
+
+This package is a modified version of [go-macaron/session](github.com/go-macaron/session).
+
+## License
+
+This project is under the Apache License, Version 2.0. See the [LICENSE](LICENSE) file for the full license text.
+\ No newline at end of file
diff --git a/vendor/gitea.com/go-chi/session/couchbase/couchbase.go b/vendor/gitea.com/go-chi/session/couchbase/couchbase.go
new file mode 100644
index 0000000000..31899a8574
--- /dev/null
+++ b/vendor/gitea.com/go-chi/session/couchbase/couchbase.go
@@ -0,0 +1,227 @@
+// Copyright 2013 Beego Authors
+// Copyright 2014 The Macaron Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+package session
+
+import (
+	"strings"
+	"sync"
+
+	"gitea.com/go-chi/session"
+	"github.com/couchbase/go-couchbase"
+)
+
+// CouchbaseSessionStore represents a couchbase session store implementation.
+type CouchbaseSessionStore struct {
+	b           *couchbase.Bucket
+	sid         string
+	lock        sync.RWMutex
+	data        map[interface{}]interface{}
+	maxlifetime int64
+}
+
+// Set sets value to given key in session.
+func (s *CouchbaseSessionStore) Set(key, val interface{}) error {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	s.data[key] = val
+	return nil
+}
+
+// Get gets value by given key in session.
+func (s *CouchbaseSessionStore) Get(key interface{}) interface{} {
+	s.lock.RLock()
+	defer s.lock.RUnlock()
+
+	return s.data[key]
+}
+
+// Delete delete a key from session.
+func (s *CouchbaseSessionStore) Delete(key interface{}) error {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	delete(s.data, key)
+	return nil
+}
+
+// ID returns current session ID.
+func (s *CouchbaseSessionStore) ID() string {
+	return s.sid
+}
+
+// Release releases resource and save data to provider.
+func (s *CouchbaseSessionStore) Release() error {
+	defer s.b.Close()
+
+	// Skip encoding if the data is empty
+	if len(s.data) == 0 {
+		return nil
+	}
+
+	data, err := session.EncodeGob(s.data)
+	if err != nil {
+		return err
+	}
+
+	return s.b.Set(s.sid, int(s.maxlifetime), data)
+}
+
+// Flush deletes all session data.
+func (s *CouchbaseSessionStore) Flush() error {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	s.data = make(map[interface{}]interface{})
+	return nil
+}
+
+// CouchbaseProvider represents a couchbase session provider implementation.
+type CouchbaseProvider struct {
+	maxlifetime int64
+	connStr     string
+	pool        string
+	bucket      string
+	b           *couchbase.Bucket
+}
+
+func (cp *CouchbaseProvider) getBucket() *couchbase.Bucket {
+	c, err := couchbase.Connect(cp.connStr)
+	if err != nil {
+		return nil
+	}
+
+	pool, err := c.GetPool(cp.pool)
+	if err != nil {
+		return nil
+	}
+
+	bucket, err := pool.GetBucket(cp.bucket)
+	if err != nil {
+		return nil
+	}
+
+	return bucket
+}
+
+// Init initializes memory session provider.
+// connStr is couchbase server REST/JSON URL
+// e.g. http://host:port/, Pool, Bucket
+func (p *CouchbaseProvider) Init(maxlifetime int64, connStr string) error {
+	p.maxlifetime = maxlifetime
+	configs := strings.Split(connStr, ",")
+	if len(configs) > 0 {
+		p.connStr = configs[0]
+	}
+	if len(configs) > 1 {
+		p.pool = configs[1]
+	}
+	if len(configs) > 2 {
+		p.bucket = configs[2]
+	}
+
+	return nil
+}
+
+// Read returns raw session store by session ID.
+func (p *CouchbaseProvider) Read(sid string) (session.RawStore, error) {
+	p.b = p.getBucket()
+
+	var doc []byte
+
+	err := p.b.Get(sid, &doc)
+	var kv map[interface{}]interface{}
+	if doc == nil {
+		kv = make(map[interface{}]interface{})
+	} else {
+		kv, err = session.DecodeGob(doc)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	cs := &CouchbaseSessionStore{b: p.b, sid: sid, data: kv, maxlifetime: p.maxlifetime}
+	return cs, nil
+}
+
+// Exist returns true if session with given ID exists.
+func (p *CouchbaseProvider) Exist(sid string) bool {
+	p.b = p.getBucket()
+	defer p.b.Close()
+
+	var doc []byte
+
+	if err := p.b.Get(sid, &doc); err != nil || doc == nil {
+		return false
+	} else {
+		return true
+	}
+}
+
+// Destroy deletes a session by session ID.
+func (p *CouchbaseProvider) Destroy(sid string) error {
+	p.b = p.getBucket()
+	defer p.b.Close()
+
+	p.b.Delete(sid)
+	return nil
+}
+
+// Regenerate regenerates a session store from old session ID to new one.
+func (p *CouchbaseProvider) Regenerate(oldsid, sid string) (session.RawStore, error) {
+	p.b = p.getBucket()
+
+	var doc []byte
+	if err := p.b.Get(oldsid, &doc); err != nil || doc == nil {
+		p.b.Set(sid, int(p.maxlifetime), "")
+	} else {
+		err := p.b.Delete(oldsid)
+		if err != nil {
+			return nil, err
+		}
+		_, _ = p.b.Add(sid, int(p.maxlifetime), doc)
+	}
+
+	err := p.b.Get(sid, &doc)
+	if err != nil {
+		return nil, err
+	}
+	var kv map[interface{}]interface{}
+	if doc == nil {
+		kv = make(map[interface{}]interface{})
+	} else {
+		kv, err = session.DecodeGob(doc)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	cs := &CouchbaseSessionStore{b: p.b, sid: sid, data: kv, maxlifetime: p.maxlifetime}
+	return cs, nil
+}
+
+// Count counts and returns number of sessions.
+func (p *CouchbaseProvider) Count() int {
+	// FIXME
+	return 0
+}
+
+// GC calls GC to clean expired sessions.
+func (p *CouchbaseProvider) GC() {}
+
+func init() {
+	session.Register("couchbase", &CouchbaseProvider{})
+}
diff --git a/vendor/gitea.com/go-chi/session/file.go b/vendor/gitea.com/go-chi/session/file.go
new file mode 100644
index 0000000000..ce915344fb
--- /dev/null
+++ b/vendor/gitea.com/go-chi/session/file.go
@@ -0,0 +1,274 @@
+// Copyright 2013 Beego Authors
+// Copyright 2014 The Macaron Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+package session
+
+import (
+	"fmt"
+	"io/ioutil"
+	"log"
+	"os"
+	"path"
+	"path/filepath"
+	"sync"
+	"time"
+
+	"github.com/unknwon/com"
+)
+
+// FileStore represents a file session store implementation.
+type FileStore struct {
+	p    *FileProvider
+	sid  string
+	lock sync.RWMutex
+	data map[interface{}]interface{}
+}
+
+// NewFileStore creates and returns a file session store.
+func NewFileStore(p *FileProvider, sid string, kv map[interface{}]interface{}) *FileStore {
+	return &FileStore{
+		p:    p,
+		sid:  sid,
+		data: kv,
+	}
+}
+
+// Set sets value to given key in session.
+func (s *FileStore) Set(key, val interface{}) error {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	s.data[key] = val
+	return nil
+}
+
+// Get gets value by given key in session.
+func (s *FileStore) Get(key interface{}) interface{} {
+	s.lock.RLock()
+	defer s.lock.RUnlock()
+
+	return s.data[key]
+}
+
+// Delete delete a key from session.
+func (s *FileStore) Delete(key interface{}) error {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	delete(s.data, key)
+	return nil
+}
+
+// ID returns current session ID.
+func (s *FileStore) ID() string {
+	return s.sid
+}
+
+// Release releases resource and save data to provider.
+func (s *FileStore) Release() error {
+	s.p.lock.Lock()
+	defer s.p.lock.Unlock()
+
+	// Skip encoding if the data is empty
+	if len(s.data) == 0 {
+		return nil
+	}
+
+	data, err := EncodeGob(s.data)
+	if err != nil {
+		return err
+	}
+
+	return ioutil.WriteFile(s.p.filepath(s.sid), data, 0600)
+}
+
+// Flush deletes all session data.
+func (s *FileStore) Flush() error {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	s.data = make(map[interface{}]interface{})
+	return nil
+}
+
+// FileProvider represents a file session provider implementation.
+type FileProvider struct {
+	lock        sync.RWMutex
+	maxlifetime int64
+	rootPath    string
+}
+
+// Init initializes file session provider with given root path.
+func (p *FileProvider) Init(maxlifetime int64, rootPath string) error {
+	p.lock.Lock()
+	p.maxlifetime = maxlifetime
+	p.rootPath = rootPath
+	p.lock.Unlock()
+	return nil
+}
+
+func (p *FileProvider) filepath(sid string) string {
+	return path.Join(p.rootPath, string(sid[0]), string(sid[1]), sid)
+}
+
+// Read returns raw session store by session ID.
+func (p *FileProvider) Read(sid string) (_ RawStore, err error) {
+	filename := p.filepath(sid)
+	if err = os.MkdirAll(path.Dir(filename), 0700); err != nil {
+		return nil, err
+	}
+	p.lock.RLock()
+	defer p.lock.RUnlock()
+
+	var f *os.File
+	ok := false
+	if com.IsFile(filename) {
+		modTime, err := com.FileMTime(filename)
+		if err != nil {
+			return nil, err
+		}
+		ok = (modTime + p.maxlifetime) >= time.Now().Unix()
+	}
+	if ok {
+		f, err = os.OpenFile(filename, os.O_RDONLY, 0600)
+	} else {
+		f, err = os.Create(filename)
+	}
+	if err != nil {
+		return nil, err
+	}
+	defer f.Close()
+
+	if err = os.Chtimes(filename, time.Now(), time.Now()); err != nil {
+		return nil, err
+	}
+
+	var kv map[interface{}]interface{}
+	data, err := ioutil.ReadAll(f)
+	if err != nil {
+		return nil, err
+	}
+	if len(data) == 0 {
+		kv = make(map[interface{}]interface{})
+	} else {
+		kv, err = DecodeGob(data)
+		if err != nil {
+			return nil, err
+		}
+	}
+	return NewFileStore(p, sid, kv), nil
+}
+
+// Exist returns true if session with given ID exists.
+func (p *FileProvider) Exist(sid string) bool {
+	p.lock.RLock()
+	defer p.lock.RUnlock()
+	return com.IsFile(p.filepath(sid))
+}
+
+// Destroy deletes a session by session ID.
+func (p *FileProvider) Destroy(sid string) error {
+	p.lock.Lock()
+	defer p.lock.Unlock()
+	return os.Remove(p.filepath(sid))
+}
+
+func (p *FileProvider) regenerate(oldsid, sid string) (err error) {
+	p.lock.Lock()
+	defer p.lock.Unlock()
+
+	filename := p.filepath(sid)
+	if com.IsExist(filename) {
+		return fmt.Errorf("new sid '%s' already exists", sid)
+	}
+
+	oldname := p.filepath(oldsid)
+	if !com.IsFile(oldname) {
+		data, err := EncodeGob(make(map[interface{}]interface{}))
+		if err != nil {
+			return err
+		}
+		if err = os.MkdirAll(path.Dir(oldname), 0700); err != nil {
+			return err
+		}
+		if err = ioutil.WriteFile(oldname, data, 0600); err != nil {
+			return err
+		}
+	}
+
+	if err = os.MkdirAll(path.Dir(filename), 0700); err != nil {
+		return err
+	}
+	if err = os.Rename(oldname, filename); err != nil {
+		return err
+	}
+	return nil
+}
+
+// Regenerate regenerates a session store from old session ID to new one.
+func (p *FileProvider) Regenerate(oldsid, sid string) (_ RawStore, err error) {
+	if err := p.regenerate(oldsid, sid); err != nil {
+		return nil, err
+	}
+
+	return p.Read(sid)
+}
+
+// Count counts and returns number of sessions.
+func (p *FileProvider) Count() int {
+	count := 0
+	if err := filepath.Walk(p.rootPath, func(path string, fi os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+
+		if !fi.IsDir() {
+			count++
+		}
+		return nil
+	}); err != nil {
+		log.Printf("error counting session files: %v", err)
+		return 0
+	}
+	return count
+}
+
+// GC calls GC to clean expired sessions.
+func (p *FileProvider) GC() {
+	p.lock.RLock()
+	defer p.lock.RUnlock()
+
+	if !com.IsExist(p.rootPath) {
+		return
+	}
+
+	if err := filepath.Walk(p.rootPath, func(path string, fi os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+
+		if !fi.IsDir() &&
+			(fi.ModTime().Unix()+p.maxlifetime) < time.Now().Unix() {
+			return os.Remove(path)
+		}
+		return nil
+	}); err != nil {
+		log.Printf("error garbage collecting session files: %v", err)
+	}
+}
+
+func init() {
+	Register("file", &FileProvider{})
+}
diff --git a/vendor/gitea.com/go-chi/session/go.mod b/vendor/gitea.com/go-chi/session/go.mod
new file mode 100644
index 0000000000..6612080047
--- /dev/null
+++ b/vendor/gitea.com/go-chi/session/go.mod
@@ -0,0 +1,26 @@
+module gitea.com/go-chi/session
+
+go 1.11
+
+require (
+	github.com/bradfitz/gomemcache v0.0.0-20190329173943-551aad21a668
+	github.com/couchbase/go-couchbase v0.0.0-20201026062457-7b3be89bbd89
+	github.com/couchbase/gomemcached v0.1.1 // indirect
+	github.com/couchbase/goutils v0.0.0-20201030094643-5e82bb967e67 // indirect
+	github.com/cupcake/rdb v0.0.0-20161107195141-43ba34106c76 // indirect
+	github.com/edsrzf/mmap-go v1.0.0 // indirect
+	github.com/go-chi/chi v1.5.1
+	github.com/go-redis/redis/v8 v8.4.0
+	github.com/go-sql-driver/mysql v1.4.1
+	github.com/lib/pq v1.2.0
+	github.com/pelletier/go-toml v1.8.1 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/siddontang/go v0.0.0-20180604090527-bdc77568d726 // indirect
+	github.com/siddontang/ledisdb v0.0.0-20190202134119-8ceb77e66a92
+	github.com/siddontang/rdb v0.0.0-20150307021120-fc89ed2e418d // indirect
+	github.com/smartystreets/goconvey v0.0.0-20190731233626-505e41936337
+	github.com/syndtr/goleveldb v1.0.0 // indirect
+	github.com/unknwon/com v1.0.1
+	google.golang.org/appengine v1.6.7 // indirect
+	gopkg.in/ini.v1 v1.62.0
+)
diff --git a/vendor/gitea.com/go-chi/session/go.sum b/vendor/gitea.com/go-chi/session/go.sum
new file mode 100644
index 0000000000..e2c174b0c7
--- /dev/null
+++ b/vendor/gitea.com/go-chi/session/go.sum
@@ -0,0 +1,151 @@
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+github.com/cespare/xxhash/v2 v2.1.1 h1:6MnRN8NT7+YBpUIWxHtefFZOKTAPgGjpQSxqLNn0+qY=
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diff --git a/vendor/gitea.com/go-chi/session/memcache/memcache.go b/vendor/gitea.com/go-chi/session/memcache/memcache.go
new file mode 100644
index 0000000000..ed08b915df
--- /dev/null
+++ b/vendor/gitea.com/go-chi/session/memcache/memcache.go
@@ -0,0 +1,203 @@
+// Copyright 2013 Beego Authors
+// Copyright 2014 The Macaron Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+package session
+
+import (
+	"fmt"
+	"strings"
+	"sync"
+
+	"gitea.com/go-chi/session"
+	"github.com/bradfitz/gomemcache/memcache"
+)
+
+// MemcacheStore represents a memcache session store implementation.
+type MemcacheStore struct {
+	c      *memcache.Client
+	sid    string
+	expire int32
+	lock   sync.RWMutex
+	data   map[interface{}]interface{}
+}
+
+// NewMemcacheStore creates and returns a memcache session store.
+func NewMemcacheStore(c *memcache.Client, sid string, expire int32, kv map[interface{}]interface{}) *MemcacheStore {
+	return &MemcacheStore{
+		c:      c,
+		sid:    sid,
+		expire: expire,
+		data:   kv,
+	}
+}
+
+func NewItem(sid string, data []byte, expire int32) *memcache.Item {
+	return &memcache.Item{
+		Key:        sid,
+		Value:      data,
+		Expiration: expire,
+	}
+}
+
+// Set sets value to given key in session.
+func (s *MemcacheStore) Set(key, val interface{}) error {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	s.data[key] = val
+	return nil
+}
+
+// Get gets value by given key in session.
+func (s *MemcacheStore) Get(key interface{}) interface{} {
+	s.lock.RLock()
+	defer s.lock.RUnlock()
+
+	return s.data[key]
+}
+
+// Delete delete a key from session.
+func (s *MemcacheStore) Delete(key interface{}) error {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	delete(s.data, key)
+	return nil
+}
+
+// ID returns current session ID.
+func (s *MemcacheStore) ID() string {
+	return s.sid
+}
+
+// Release releases resource and save data to provider.
+func (s *MemcacheStore) Release() error {
+	// Skip encoding if the data is empty
+	if len(s.data) == 0 {
+		return nil
+	}
+
+	data, err := session.EncodeGob(s.data)
+	if err != nil {
+		return err
+	}
+
+	return s.c.Set(NewItem(s.sid, data, s.expire))
+}
+
+// Flush deletes all session data.
+func (s *MemcacheStore) Flush() error {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	s.data = make(map[interface{}]interface{})
+	return nil
+}
+
+// MemcacheProvider represents a memcache session provider implementation.
+type MemcacheProvider struct {
+	c      *memcache.Client
+	expire int32
+}
+
+// Init initializes memcache session provider.
+// connStrs: 127.0.0.1:9090;127.0.0.1:9091
+func (p *MemcacheProvider) Init(expire int64, connStrs string) error {
+	p.expire = int32(expire)
+	p.c = memcache.New(strings.Split(connStrs, ";")...)
+	return nil
+}
+
+// Read returns raw session store by session ID.
+func (p *MemcacheProvider) Read(sid string) (session.RawStore, error) {
+	if !p.Exist(sid) {
+		if err := p.c.Set(NewItem(sid, []byte(""), p.expire)); err != nil {
+			return nil, err
+		}
+	}
+
+	var kv map[interface{}]interface{}
+	item, err := p.c.Get(sid)
+	if err != nil {
+		return nil, err
+	}
+	if len(item.Value) == 0 {
+		kv = make(map[interface{}]interface{})
+	} else {
+		kv, err = session.DecodeGob(item.Value)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	return NewMemcacheStore(p.c, sid, p.expire, kv), nil
+}
+
+// Exist returns true if session with given ID exists.
+func (p *MemcacheProvider) Exist(sid string) bool {
+	_, err := p.c.Get(sid)
+	return err == nil
+}
+
+// Destroy deletes a session by session ID.
+func (p *MemcacheProvider) Destroy(sid string) error {
+	return p.c.Delete(sid)
+}
+
+// Regenerate regenerates a session store from old session ID to new one.
+func (p *MemcacheProvider) Regenerate(oldsid, sid string) (_ session.RawStore, err error) {
+	if p.Exist(sid) {
+		return nil, fmt.Errorf("new sid '%s' already exists", sid)
+	}
+
+	item := NewItem(sid, []byte(""), p.expire)
+	if p.Exist(oldsid) {
+		item, err = p.c.Get(oldsid)
+		if err != nil {
+			return nil, err
+		} else if err = p.c.Delete(oldsid); err != nil {
+			return nil, err
+		}
+		item.Key = sid
+	}
+	if err = p.c.Set(item); err != nil {
+		return nil, err
+	}
+
+	var kv map[interface{}]interface{}
+	if len(item.Value) == 0 {
+		kv = make(map[interface{}]interface{})
+	} else {
+		kv, err = session.DecodeGob(item.Value)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	return NewMemcacheStore(p.c, sid, p.expire, kv), nil
+}
+
+// Count counts and returns number of sessions.
+func (p *MemcacheProvider) Count() int {
+	// FIXME: how come this library does not have Stats method?
+	return -1
+}
+
+// GC calls GC to clean expired sessions.
+func (p *MemcacheProvider) GC() {}
+
+func init() {
+	session.Register("memcache", &MemcacheProvider{})
+}
diff --git a/vendor/gitea.com/go-chi/session/memcache/memcache.goconvey b/vendor/gitea.com/go-chi/session/memcache/memcache.goconvey
new file mode 100644
index 0000000000..8485e986e4
--- /dev/null
+++ b/vendor/gitea.com/go-chi/session/memcache/memcache.goconvey
@@ -0,0 +1 @@
+ignore
+\ No newline at end of file
diff --git a/vendor/gitea.com/go-chi/session/memory.go b/vendor/gitea.com/go-chi/session/memory.go
new file mode 100644
index 0000000000..d3a623c672
--- /dev/null
+++ b/vendor/gitea.com/go-chi/session/memory.go
@@ -0,0 +1,223 @@
+// Copyright 2013 Beego Authors
+// Copyright 2014 The Macaron Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+package session
+
+import (
+	"container/list"
+	"fmt"
+	"sync"
+	"time"
+)
+
+// MemStore represents a in-memory session store implementation.
+type MemStore struct {
+	sid        string
+	lock       sync.RWMutex
+	data       map[interface{}]interface{}
+	lastAccess time.Time
+}
+
+// NewMemStore creates and returns a memory session store.
+func NewMemStore(sid string) *MemStore {
+	return &MemStore{
+		sid:        sid,
+		data:       make(map[interface{}]interface{}),
+		lastAccess: time.Now(),
+	}
+}
+
+// Set sets value to given key in session.
+func (s *MemStore) Set(key, val interface{}) error {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	s.data[key] = val
+	return nil
+}
+
+// Get gets value by given key in session.
+func (s *MemStore) Get(key interface{}) interface{} {
+	s.lock.RLock()
+	defer s.lock.RUnlock()
+
+	return s.data[key]
+}
+
+// Delete deletes a key from session.
+func (s *MemStore) Delete(key interface{}) error {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	delete(s.data, key)
+	return nil
+}
+
+// ID returns current session ID.
+func (s *MemStore) ID() string {
+	return s.sid
+}
+
+// Release releases resource and save data to provider.
+func (*MemStore) Release() error {
+	return nil
+}
+
+// Flush deletes all session data.
+func (s *MemStore) Flush() error {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	s.data = make(map[interface{}]interface{})
+	return nil
+}
+
+// MemProvider represents a in-memory session provider implementation.
+type MemProvider struct {
+	lock        sync.RWMutex
+	maxLifetime int64
+	data        map[string]*list.Element
+	// A priority list whose lastAccess newer gets higer priority.
+	list *list.List
+}
+
+// Init initializes memory session provider.
+func (p *MemProvider) Init(maxLifetime int64, _ string) error {
+	p.lock.Lock()
+	p.list = list.New()
+	p.data = make(map[string]*list.Element)
+	p.maxLifetime = maxLifetime
+	p.lock.Unlock()
+	return nil
+}
+
+// update expands time of session store by given ID.
+func (p *MemProvider) update(sid string) error {
+	p.lock.Lock()
+	defer p.lock.Unlock()
+
+	if e, ok := p.data[sid]; ok {
+		e.Value.(*MemStore).lastAccess = time.Now()
+		p.list.MoveToFront(e)
+		return nil
+	}
+	return nil
+}
+
+// Read returns raw session store by session ID.
+func (p *MemProvider) Read(sid string) (_ RawStore, err error) {
+	p.lock.RLock()
+	e, ok := p.data[sid]
+	p.lock.RUnlock()
+
+	// Only restore if the session is still alive.
+	if ok && (e.Value.(*MemStore).lastAccess.Unix()+p.maxLifetime) >= time.Now().Unix() {
+		if err = p.update(sid); err != nil {
+			return nil, err
+		}
+		return e.Value.(*MemStore), nil
+	}
+
+	// Create a new session.
+	p.lock.Lock()
+	defer p.lock.Unlock()
+	if ok {
+		p.list.Remove(e)
+		delete(p.data, sid)
+	}
+	s := NewMemStore(sid)
+	p.data[sid] = p.list.PushBack(s)
+	return s, nil
+}
+
+// Exist returns true if session with given ID exists.
+func (p *MemProvider) Exist(sid string) bool {
+	p.lock.RLock()
+	defer p.lock.RUnlock()
+
+	_, ok := p.data[sid]
+	return ok
+}
+
+// Destroy deletes a session by session ID.
+func (p *MemProvider) Destroy(sid string) error {
+	p.lock.Lock()
+	defer p.lock.Unlock()
+
+	e, ok := p.data[sid]
+	if !ok {
+		return nil
+	}
+
+	p.list.Remove(e)
+	delete(p.data, sid)
+	return nil
+}
+
+// Regenerate regenerates a session store from old session ID to new one.
+func (p *MemProvider) Regenerate(oldsid, sid string) (RawStore, error) {
+	if p.Exist(sid) {
+		return nil, fmt.Errorf("new sid '%s' already exists", sid)
+	}
+
+	s, err := p.Read(oldsid)
+	if err != nil {
+		return nil, err
+	}
+
+	if err = p.Destroy(oldsid); err != nil {
+		return nil, err
+	}
+
+	s.(*MemStore).sid = sid
+
+	p.lock.Lock()
+	defer p.lock.Unlock()
+	p.data[sid] = p.list.PushBack(s)
+	return s, nil
+}
+
+// Count counts and returns number of sessions.
+func (p *MemProvider) Count() int {
+	return p.list.Len()
+}
+
+// GC calls GC to clean expired sessions.
+func (p *MemProvider) GC() {
+	p.lock.RLock()
+	for {
+		// No session in the list.
+		e := p.list.Back()
+		if e == nil {
+			break
+		}
+
+		if (e.Value.(*MemStore).lastAccess.Unix() + p.maxLifetime) < time.Now().Unix() {
+			p.lock.RUnlock()
+			p.lock.Lock()
+			p.list.Remove(e)
+			delete(p.data, e.Value.(*MemStore).sid)
+			p.lock.Unlock()
+			p.lock.RLock()
+		} else {
+			break
+		}
+	}
+	p.lock.RUnlock()
+}
+
+func init() {
+	Register("memory", &MemProvider{})
+}
diff --git a/vendor/gitea.com/go-chi/session/mysql/mysql.go b/vendor/gitea.com/go-chi/session/mysql/mysql.go
new file mode 100644
index 0000000000..7ec647bf3a
--- /dev/null
+++ b/vendor/gitea.com/go-chi/session/mysql/mysql.go
@@ -0,0 +1,201 @@
+// Copyright 2013 Beego Authors
+// Copyright 2014 The Macaron Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+package session
+
+import (
+	"database/sql"
+	"fmt"
+	"log"
+	"sync"
+	"time"
+
+	"gitea.com/go-chi/session"
+	_ "github.com/go-sql-driver/mysql"
+)
+
+// MysqlStore represents a mysql session store implementation.
+type MysqlStore struct {
+	c    *sql.DB
+	sid  string
+	lock sync.RWMutex
+	data map[interface{}]interface{}
+}
+
+// NewMysqlStore creates and returns a mysql session store.
+func NewMysqlStore(c *sql.DB, sid string, kv map[interface{}]interface{}) *MysqlStore {
+	return &MysqlStore{
+		c:    c,
+		sid:  sid,
+		data: kv,
+	}
+}
+
+// Set sets value to given key in session.
+func (s *MysqlStore) Set(key, val interface{}) error {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	s.data[key] = val
+	return nil
+}
+
+// Get gets value by given key in session.
+func (s *MysqlStore) Get(key interface{}) interface{} {
+	s.lock.RLock()
+	defer s.lock.RUnlock()
+
+	return s.data[key]
+}
+
+// Delete delete a key from session.
+func (s *MysqlStore) Delete(key interface{}) error {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	delete(s.data, key)
+	return nil
+}
+
+// ID returns current session ID.
+func (s *MysqlStore) ID() string {
+	return s.sid
+}
+
+// Release releases resource and save data to provider.
+func (s *MysqlStore) Release() error {
+	// Skip encoding if the data is empty
+	if len(s.data) == 0 {
+		return nil
+	}
+
+	data, err := session.EncodeGob(s.data)
+	if err != nil {
+		return err
+	}
+
+	_, err = s.c.Exec("UPDATE session SET data=?, expiry=? WHERE `key`=?",
+		data, time.Now().Unix(), s.sid)
+	return err
+}
+
+// Flush deletes all session data.
+func (s *MysqlStore) Flush() error {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	s.data = make(map[interface{}]interface{})
+	return nil
+}
+
+// MysqlProvider represents a mysql session provider implementation.
+type MysqlProvider struct {
+	c      *sql.DB
+	expire int64
+}
+
+// Init initializes mysql session provider.
+// connStr: username:password@protocol(address)/dbname?param=value
+func (p *MysqlProvider) Init(expire int64, connStr string) (err error) {
+	p.expire = expire
+
+	p.c, err = sql.Open("mysql", connStr)
+	if err != nil {
+		return err
+	}
+	return p.c.Ping()
+}
+
+// Read returns raw session store by session ID.
+func (p *MysqlProvider) Read(sid string) (session.RawStore, error) {
+	now := time.Now().Unix()
+	var data []byte
+	expiry := now
+	err := p.c.QueryRow("SELECT data, expiry FROM session WHERE `key`=?", sid).Scan(&data, &expiry)
+	if err == sql.ErrNoRows {
+		_, err = p.c.Exec("INSERT INTO session(`key`,data,expiry) VALUES(?,?,?)",
+			sid, "", now)
+	}
+	if err != nil {
+		return nil, err
+	}
+
+	var kv map[interface{}]interface{}
+	if len(data) == 0 || expiry+p.expire <= now {
+		kv = make(map[interface{}]interface{})
+	} else {
+		kv, err = session.DecodeGob(data)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	return NewMysqlStore(p.c, sid, kv), nil
+}
+
+// Exist returns true if session with given ID exists.
+func (p *MysqlProvider) Exist(sid string) bool {
+	var data []byte
+	err := p.c.QueryRow("SELECT data FROM session WHERE `key`=?", sid).Scan(&data)
+	if err != nil && err != sql.ErrNoRows {
+		panic("session/mysql: error checking existence: " + err.Error())
+	}
+	return err != sql.ErrNoRows
+}
+
+// Destroy deletes a session by session ID.
+func (p *MysqlProvider) Destroy(sid string) error {
+	_, err := p.c.Exec("DELETE FROM session WHERE `key`=?", sid)
+	return err
+}
+
+// Regenerate regenerates a session store from old session ID to new one.
+func (p *MysqlProvider) Regenerate(oldsid, sid string) (_ session.RawStore, err error) {
+	if p.Exist(sid) {
+		return nil, fmt.Errorf("new sid '%s' already exists", sid)
+	}
+
+	if !p.Exist(oldsid) {
+		if _, err = p.c.Exec("INSERT INTO session(`key`,data,expiry) VALUES(?,?,?)",
+			oldsid, "", time.Now().Unix()); err != nil {
+			return nil, err
+		}
+	}
+
+	if _, err = p.c.Exec("UPDATE session SET `key`=? WHERE `key`=?", sid, oldsid); err != nil {
+		return nil, err
+	}
+
+	return p.Read(sid)
+}
+
+// Count counts and returns number of sessions.
+func (p *MysqlProvider) Count() (total int) {
+	if err := p.c.QueryRow("SELECT COUNT(*) AS NUM FROM session").Scan(&total); err != nil {
+		panic("session/mysql: error counting records: " + err.Error())
+	}
+	return total
+}
+
+// GC calls GC to clean expired sessions.
+func (p *MysqlProvider) GC() {
+	if _, err := p.c.Exec("DELETE FROM session WHERE  expiry + ? <= UNIX_TIMESTAMP(NOW())", p.expire); err != nil {
+		log.Printf("session/mysql: error garbage collecting: %v", err)
+	}
+}
+
+func init() {
+	session.Register("mysql", &MysqlProvider{})
+}
diff --git a/vendor/gitea.com/go-chi/session/mysql/mysql.goconvey b/vendor/gitea.com/go-chi/session/mysql/mysql.goconvey
new file mode 100644
index 0000000000..8485e986e4
--- /dev/null
+++ b/vendor/gitea.com/go-chi/session/mysql/mysql.goconvey
@@ -0,0 +1 @@
+ignore
+\ No newline at end of file
diff --git a/vendor/gitea.com/go-chi/session/postgres/postgres.go b/vendor/gitea.com/go-chi/session/postgres/postgres.go
new file mode 100644
index 0000000000..383906d8d7
--- /dev/null
+++ b/vendor/gitea.com/go-chi/session/postgres/postgres.go
@@ -0,0 +1,202 @@
+// Copyright 2013 Beego Authors
+// Copyright 2014 The Macaron Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+package session
+
+import (
+	"database/sql"
+	"fmt"
+	"log"
+	"sync"
+	"time"
+
+	"gitea.com/go-chi/session"
+	_ "github.com/lib/pq"
+)
+
+// PostgresStore represents a postgres session store implementation.
+type PostgresStore struct {
+	c    *sql.DB
+	sid  string
+	lock sync.RWMutex
+	data map[interface{}]interface{}
+}
+
+// NewPostgresStore creates and returns a postgres session store.
+func NewPostgresStore(c *sql.DB, sid string, kv map[interface{}]interface{}) *PostgresStore {
+	return &PostgresStore{
+		c:    c,
+		sid:  sid,
+		data: kv,
+	}
+}
+
+// Set sets value to given key in session.
+func (s *PostgresStore) Set(key, value interface{}) error {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	s.data[key] = value
+	return nil
+}
+
+// Get gets value by given key in session.
+func (s *PostgresStore) Get(key interface{}) interface{} {
+	s.lock.RLock()
+	defer s.lock.RUnlock()
+
+	return s.data[key]
+}
+
+// Delete delete a key from session.
+func (s *PostgresStore) Delete(key interface{}) error {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	delete(s.data, key)
+	return nil
+}
+
+// ID returns current session ID.
+func (s *PostgresStore) ID() string {
+	return s.sid
+}
+
+// save postgres session values to database.
+// must call this method to save values to database.
+func (s *PostgresStore) Release() error {
+	// Skip encoding if the data is empty
+	if len(s.data) == 0 {
+		return nil
+	}
+
+	data, err := session.EncodeGob(s.data)
+	if err != nil {
+		return err
+	}
+
+	_, err = s.c.Exec("UPDATE session SET data=$1, expiry=$2 WHERE key=$3",
+		data, time.Now().Unix(), s.sid)
+	return err
+}
+
+// Flush deletes all session data.
+func (s *PostgresStore) Flush() error {
+	s.lock.Lock()
+	defer s.lock.Unlock()
+
+	s.data = make(map[interface{}]interface{})
+	return nil
+}
+
+// PostgresProvider represents a postgres session provider implementation.
+type PostgresProvider struct {
+	c           *sql.DB
+	maxlifetime int64
+}
+
+// Init initializes postgres session provider.
+// connStr: user=a password=b host=localhost port=5432 dbname=c sslmode=disable
+func (p *PostgresProvider) Init(maxlifetime int64, connStr string) (err error) {
+	p.maxlifetime = maxlifetime
+
+	p.c, err = sql.Open("postgres", connStr)
+	if err != nil {
+		return err
+	}
+	return p.c.Ping()
+}
+
+// Read returns raw session store by session ID.
+func (p *PostgresProvider) Read(sid string) (session.RawStore, error) {
+	now := time.Now().Unix()
+	var data []byte
+	expiry := now
+	err := p.c.QueryRow("SELECT data, expiry FROM session WHERE key=$1", sid).Scan(&data, &expiry)
+	if err == sql.ErrNoRows {
+		_, err = p.c.Exec("INSERT INTO session(key,data,expiry) VALUES($1,$2,$3)",
+			sid, "", now)
+	}
+	if err != nil {
+		return nil, err
+	}
+
+	var kv map[interface{}]interface{}
+	if len(data) == 0 || expiry+p.maxlifetime <= now {
+		kv = make(map[interface{}]interface{})
+	} else {
+		kv, err = session.DecodeGob(data)
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	return NewPostgresStore(p.c, sid, kv), nil
+}
+
+// Exist returns true if session with given ID exists.
+func (p *PostgresProvider) Exist(sid string) bool {
+	var data []byte
+	err := p.c.QueryRow("SELECT data FROM session WHERE key=$1", sid).Scan(&data)
+	if err != nil && err != sql.ErrNoRows {
+		panic("session/postgres: error checking existence: " + err.Error())
+	}
+	return err != sql.ErrNoRows
+}
+
+// Destroy deletes a session by session ID.
+func (p *PostgresProvider) Destroy(sid string) error {
+	_, err := p.c.Exec("DELETE FROM session WHERE key=$1", sid)
+	return err
+}
+
+// Regenerate regenerates a session store from old session ID to new one.
+func (p *PostgresProvider) Regenerate(oldsid, sid string) (_ session.RawStore, err error) {
+	if p.Exist(sid) {
+		return nil, fmt.Errorf("new sid '%s' already exists", sid)
+	}
+
+	if !p.Exist(oldsid) {
+		if _, err = p.c.Exec("INSERT INTO session(key,data,expiry) VALUES($1,$2,$3)",
+			oldsid, "", time.Now().Unix()); err != nil {
+			return nil, err
+		}
+	}
+
+	if _, err = p.c.Exec("UPDATE session SET key=$1 WHERE key=$2", sid, oldsid); err != nil {
+		return nil, err
+	}
+
+	return p.Read(sid)
+}
+
+// Count counts and returns number of sessions.
+func (p *PostgresProvider) Count() (total int) {
+	if err := p.c.QueryRow("SELECT COUNT(*) AS NUM FROM session").Scan(&total); err != nil {
+		panic("session/postgres: error counting records: " + err.Error())
+	}
+	return total
+}
+
+// GC calls GC to clean expired sessions.
+func (p *PostgresProvider) GC() {
+	if _, err := p.c.Exec("DELETE FROM session WHERE EXTRACT(EPOCH FROM NOW()) - expiry > $1", p.maxlifetime); err != nil {
+		log.Printf("session/postgres: error garbage collecting: %v", err)
+	}
+}
+
+func init() {
+	session.Register("postgres", &PostgresProvider{})
+}
diff --git a/vendor/gitea.com/go-chi/session/postgres/postgres.goconvey b/vendor/gitea.com/go-chi/session/postgres/postgres.goconvey
new file mode 100644
index 0000000000..8485e986e4
--- /dev/null
+++ b/vendor/gitea.com/go-chi/session/postgres/postgres.goconvey
@@ -0,0 +1 @@
+ignore
+\ No newline at end of file
diff --git a/vendor/gitea.com/go-chi/session/secret.go b/vendor/gitea.com/go-chi/session/secret.go
new file mode 100644
index 0000000000..e56a50615b
--- /dev/null
+++ b/vendor/gitea.com/go-chi/session/secret.go
@@ -0,0 +1,100 @@
+// Copyright 2019 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package session
+
+import (
+	"crypto/aes"
+	"crypto/cipher"
+	"crypto/rand"
+	"crypto/sha256"
+	"encoding/base64"
+	"errors"
+	"io"
+)
+
+// NewSecret creates a new secret
+func NewSecret() (string, error) {
+	return NewSecretWithLength(32)
+}
+
+// NewSecretWithLength creates a new secret for a given length
+func NewSecretWithLength(length int64) (string, error) {
+	return randomString(length)
+}
+
+func randomBytes(len int64) ([]byte, error) {
+	b := make([]byte, len)
+	if _, err := rand.Read(b); err != nil {
+		return nil, err
+	}
+	return b, nil
+}
+
+func randomString(len int64) (string, error) {
+	b, err := randomBytes(len)
+	return base64.URLEncoding.EncodeToString(b), err
+}
+
+// AesEncrypt encrypts text and given key with AES.
+func AesEncrypt(key, text []byte) ([]byte, error) {
+	block, err := aes.NewCipher(key)
+	if err != nil {
+		return nil, err
+	}
+	b := base64.StdEncoding.EncodeToString(text)
+	ciphertext := make([]byte, aes.BlockSize+len(b))
+	iv := ciphertext[:aes.BlockSize]
+	if _, err := io.ReadFull(rand.Reader, iv); err != nil {
+		return nil, err
+	}
+	cfb := cipher.NewCFBEncrypter(block, iv)
+	cfb.XORKeyStream(ciphertext[aes.BlockSize:], []byte(b))
+	return ciphertext, nil
+}
+
+// AesDecrypt decrypts text and given key with AES.
+func AesDecrypt(key, text []byte) ([]byte, error) {
+	block, err := aes.NewCipher(key)
+	if err != nil {
+		return nil, err
+	}
+	if len(text) < aes.BlockSize {
+		return nil, errors.New("ciphertext too short")
+	}
+	iv := text[:aes.BlockSize]
+	text = text[aes.BlockSize:]
+	cfb := cipher.NewCFBDecrypter(block, iv)
+	cfb.XORKeyStream(text, text)
+	data, err := base64.StdEncoding.DecodeString(string(text))
+	if err != nil {
+		return nil, err
+	}
+	return data, nil
+}
+
+// EncryptSecret encrypts a string with given key into a hex string
+func EncryptSecret(key string, str string) (string, error) {
+	keyHash := sha256.Sum256([]byte(key))
+	plaintext := []byte(str)
+	ciphertext, err := AesEncrypt(keyHash[:], plaintext)
+	if err != nil {
+		return "", err
+	}
+	return base64.StdEncoding.EncodeToString(ciphertext), nil
+}
+
+// DecryptSecret decrypts a previously encrypted hex string
+func DecryptSecret(key string, cipherhex string) (string, error) {
+	keyHash := sha256.Sum256([]byte(key))
+	ciphertext, err := base64.StdEncoding.DecodeString(cipherhex)
+	if err != nil {
+		return "", err
+	}
+	plaintext, err := AesDecrypt(keyHash[:], ciphertext)
+	if err != nil {
+		return "", err
+	}
+	return string(plaintext), nil
+}
diff --git a/vendor/gitea.com/go-chi/session/session.go b/vendor/gitea.com/go-chi/session/session.go
new file mode 100644
index 0000000000..97eb5ad365
--- /dev/null
+++ b/vendor/gitea.com/go-chi/session/session.go
@@ -0,0 +1,466 @@
+// Copyright 2013 Beego Authors
+// Copyright 2014 The Macaron Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+// Package session a middleware that provides the session management of Macaron.
+package session
+
+import (
+	"context"
+	"encoding/hex"
+	"errors"
+	"fmt"
+	"net/http"
+	"net/url"
+	"time"
+)
+
+const version = "0.7.0"
+
+// Version returns the version
+func Version() string {
+	return version
+}
+
+// RawStore is the interface that operates the session data.
+type RawStore interface {
+	// Set sets value to given key in session.
+	Set(interface{}, interface{}) error
+	// Get gets value by given key in session.
+	Get(interface{}) interface{}
+	// Delete deletes a key from session.
+	Delete(interface{}) error
+	// ID returns current session ID.
+	ID() string
+	// Release releases session resource and save data to provider.
+	Release() error
+	// Flush deletes all session data.
+	Flush() error
+}
+
+// Store is the interface that contains all data for one session process with specific ID.
+type Store interface {
+	RawStore
+	// Read returns raw session store by session ID.
+	Read(string) (RawStore, error)
+	// Destroy deletes a session.
+	Destroy(http.ResponseWriter, *http.Request) error
+	// RegenerateID regenerates a session store from old session ID to new one.
+	RegenerateID(http.ResponseWriter, *http.Request) (RawStore, error)
+	// Count counts and returns number of sessions.
+	Count() int
+	// GC calls GC to clean expired sessions.
+	GC()
+}
+
+type store struct {
+	RawStore
+	*Manager
+}
+
+var _ Store = &store{}
+
+// Options represents a struct for specifying configuration options for the session middleware.
+type Options struct {
+	// Name of provider. Default is "memory".
+	Provider string
+	// Provider configuration, it's corresponding to provider.
+	ProviderConfig string
+	// Cookie name to save session ID. Default is "MacaronSession".
+	CookieName string
+	// Cookie path to store. Default is "/".
+	CookiePath string
+	// GC interval time in seconds. Default is 3600.
+	Gclifetime int64
+	// Max life time in seconds. Default is whatever GC interval time is.
+	Maxlifetime int64
+	// Use HTTPS only. Default is false.
+	Secure bool
+	// Cookie life time. Default is 0.
+	CookieLifeTime int
+	// SameSite set the cookie SameSite
+	SameSite http.SameSite
+	// Cookie domain name. Default is empty.
+	Domain string
+	// Session ID length. Default is 16.
+	IDLength int
+	// Ignore release for websocket. Default is false.
+	IgnoreReleaseForWebSocket bool
+	// FlashEncryptionKey sets the encryption key for flash messages
+	FlashEncryptionKey string
+}
+
+func prepareOptions(options []Options) Options {
+	var opt Options
+	if len(options) > 0 {
+		opt = options[0]
+	}
+
+	if len(opt.Provider) == 0 {
+		opt.Provider = "memory"
+	}
+	if len(opt.ProviderConfig) == 0 {
+		opt.ProviderConfig = "data/sessions"
+	}
+	if len(opt.CookieName) == 0 {
+		opt.CookieName = "MacaronSession"
+	}
+	if len(opt.CookiePath) == 0 {
+		opt.CookiePath = "/"
+	}
+	if opt.Gclifetime == 0 {
+		opt.Gclifetime = 3600
+	}
+	if opt.Maxlifetime == 0 {
+		opt.Maxlifetime = opt.Gclifetime
+	}
+	if !opt.Secure {
+		opt.Secure = false
+	}
+	if opt.IDLength == 0 {
+		opt.IDLength = 16
+	}
+	if len(opt.FlashEncryptionKey) == 0 {
+		opt.FlashEncryptionKey = ""
+	}
+	if len(opt.FlashEncryptionKey) == 0 {
+		opt.FlashEncryptionKey, _ = NewSecret()
+	}
+
+	return opt
+}
+
+// GetCookie returns given cookie value from request header.
+func GetCookie(req *http.Request, name string) string {
+	cookie, err := req.Cookie(name)
+	if err != nil {
+		return ""
+	}
+	val, _ := url.QueryUnescape(cookie.Value)
+	return val
+}
+
+// NewCookie creates cookie via given params and value.
+// FIXME: IE support? http://golanghome.com/post/620#reply2
+func NewCookie(name string, value string, others ...interface{}) *http.Cookie {
+	cookie := http.Cookie{}
+	cookie.Name = name
+	cookie.Value = url.QueryEscape(value)
+
+	if len(others) > 0 {
+		switch v := others[0].(type) {
+		case int:
+			cookie.MaxAge = v
+		case int64:
+			cookie.MaxAge = int(v)
+		case int32:
+			cookie.MaxAge = int(v)
+		case func(*http.Cookie):
+			v(&cookie)
+		}
+	}
+
+	cookie.Path = "/"
+	if len(others) > 1 {
+		if v, ok := others[1].(string); ok && len(v) > 0 {
+			cookie.Path = v
+		} else if v, ok := others[1].(func(*http.Cookie)); ok {
+			v(&cookie)
+		}
+	}
+
+	if len(others) > 2 {
+		if v, ok := others[2].(string); ok && len(v) > 0 {
+			cookie.Domain = v
+		} else if v, ok := others[1].(func(*http.Cookie)); ok {
+			v(&cookie)
+		}
+	}
+
+	if len(others) > 3 {
+		switch v := others[3].(type) {
+		case bool:
+			cookie.Secure = v
+		case func(*http.Cookie):
+			v(&cookie)
+		default:
+			if others[3] != nil {
+				cookie.Secure = true
+			}
+		}
+	}
+
+	if len(others) > 4 {
+		if v, ok := others[4].(bool); ok && v {
+			cookie.HttpOnly = true
+		} else if v, ok := others[1].(func(*http.Cookie)); ok {
+			v(&cookie)
+		}
+	}
+
+	if len(others) > 5 {
+		if v, ok := others[5].(time.Time); ok {
+			cookie.Expires = v
+			cookie.RawExpires = v.Format(time.UnixDate)
+		} else if v, ok := others[1].(func(*http.Cookie)); ok {
+			v(&cookie)
+		}
+	}
+
+	if len(others) > 6 {
+		for _, other := range others[6:] {
+			if v, ok := other.(func(*http.Cookie)); ok {
+				v(&cookie)
+			}
+		}
+	}
+	return &cookie
+}
+
+// Sessioner is a middleware that maps a session.SessionStore service into the Macaron handler chain.
+// An single variadic session.Options struct can be optionally provided to configure.
+func Sessioner(options ...Options) func(next http.Handler) http.Handler {
+	opt := prepareOptions(options)
+	manager, err := NewManager(opt.Provider, opt)
+	if err != nil {
+		panic(err)
+	}
+	go manager.startGC()
+
+	return func(next http.Handler) http.Handler {
+		return http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
+			sess, err := manager.Start(w, req)
+			if err != nil {
+				panic("session(start): " + err.Error())
+			}
+
+			var s = store{
+				RawStore: sess,
+				Manager:  manager,
+			}
+
+			req = req.WithContext(context.WithValue(req.Context(), interface{}("Session"), &s))
+
+			next.ServeHTTP(w, req)
+
+			if manager.opt.IgnoreReleaseForWebSocket && req.Header.Get("Upgrade") == "websocket" {
+				return
+			}
+
+			if err = sess.Release(); err != nil {
+				panic("session(release): " + err.Error())
+			}
+		})
+	}
+}
+
+// GetSession returns session store
+func GetSession(req *http.Request) Store {
+	sessCtx := req.Context().Value("Session")
+	sess, _ := sessCtx.(*store)
+	return sess
+}
+
+// Provider is the interface that provides session manipulations.
+type Provider interface {
+	// Init initializes session provider.
+	Init(gclifetime int64, config string) error
+	// Read returns raw session store by session ID.
+	Read(sid string) (RawStore, error)
+	// Exist returns true if session with given ID exists.
+	Exist(sid string) bool
+	// Destroy deletes a session by session ID.
+	Destroy(sid string) error
+	// Regenerate regenerates a session store from old session ID to new one.
+	Regenerate(oldsid, sid string) (RawStore, error)
+	// Count counts and returns number of sessions.
+	Count() int
+	// GC calls GC to clean expired sessions.
+	GC()
+}
+
+var providers = make(map[string]Provider)
+
+// Register registers a provider.
+func Register(name string, provider Provider) {
+	if provider == nil {
+		panic("session: cannot register provider with nil value")
+	}
+	if _, dup := providers[name]; dup {
+		panic(fmt.Errorf("session: cannot register provider '%s' twice", name))
+	}
+	providers[name] = provider
+}
+
+//    _____
+//   /     \ _____    ____ _____     ____   ___________
+//  /  \ /  \\__  \  /    \\__  \   / ___\_/ __ \_  __ \
+// /    Y    \/ __ \|   |  \/ __ \_/ /_/  >  ___/|  | \/
+// \____|__  (____  /___|  (____  /\___  / \___  >__|
+//         \/     \/     \/     \//_____/      \/
+
+// Manager represents a struct that contains session provider and its configuration.
+type Manager struct {
+	provider Provider
+	opt      Options
+}
+
+// NewManager creates and returns a new session manager by given provider name and configuration.
+// It panics when given provider isn't registered.
+func NewManager(name string, opt Options) (*Manager, error) {
+	p, ok := providers[name]
+	if !ok {
+		return nil, fmt.Errorf("session: unknown provider '%s'(forgotten import?)", name)
+	}
+	return &Manager{p, opt}, p.Init(opt.Maxlifetime, opt.ProviderConfig)
+}
+
+// sessionID generates a new session ID with rand string, unix nano time, remote addr by hash function.
+func (m *Manager) sessionID() string {
+	return hex.EncodeToString(generateRandomKey(m.opt.IDLength / 2))
+}
+
+// validSessionID tests whether a provided session ID is a valid session ID.
+func (m *Manager) validSessionID(sid string) (bool, error) {
+	if len(sid) != m.opt.IDLength {
+		return false, fmt.Errorf("invalid 'sid': %s %d != %d", sid, len(sid), m.opt.IDLength)
+	}
+
+	for i := range sid {
+		switch {
+		case '0' <= sid[i] && sid[i] <= '9':
+		case 'a' <= sid[i] && sid[i] <= 'f':
+		default:
+			return false, errors.New("invalid 'sid': " + sid)
+		}
+	}
+	return true, nil
+}
+
+// Start starts a session by generating new one
+// or retrieve existence one by reading session ID from HTTP request if it's valid.
+func (m *Manager) Start(resp http.ResponseWriter, req *http.Request) (RawStore, error) {
+	sid := GetCookie(req, m.opt.CookieName)
+	valid, _ := m.validSessionID(sid)
+	if len(sid) > 0 && valid && m.provider.Exist(sid) {
+		return m.provider.Read(sid)
+	}
+
+	sid = m.sessionID()
+	sess, err := m.provider.Read(sid)
+	if err != nil {
+		return nil, err
+	}
+
+	cookie := &http.Cookie{
+		Name:     m.opt.CookieName,
+		Value:    sid,
+		Path:     m.opt.CookiePath,
+		HttpOnly: true,
+		Secure:   m.opt.Secure,
+		Domain:   m.opt.Domain,
+		SameSite: m.opt.SameSite,
+	}
+	if m.opt.CookieLifeTime >= 0 {
+		cookie.MaxAge = m.opt.CookieLifeTime
+	}
+	http.SetCookie(resp, cookie)
+	req.AddCookie(cookie)
+	return sess, nil
+}
+
+// Read returns raw session store by session ID.
+func (m *Manager) Read(sid string) (RawStore, error) {
+	// Ensure we're trying to read a valid session ID
+	if _, err := m.validSessionID(sid); err != nil {
+		return nil, err
+	}
+
+	return m.provider.Read(sid)
+}
+
+// Destroy deletes a session by given ID.
+func (m *Manager) Destroy(resp http.ResponseWriter, req *http.Request) error {
+	sid := GetCookie(req, m.opt.CookieName)
+	if len(sid) == 0 {
+		return nil
+	}
+
+	if _, err := m.validSessionID(sid); err != nil {
+		return err
+	}
+
+	if err := m.provider.Destroy(sid); err != nil {
+		return err
+	}
+	cookie := &http.Cookie{
+		Name:     m.opt.CookieName,
+		Path:     m.opt.CookiePath,
+		HttpOnly: true,
+		Expires:  time.Now(),
+		MaxAge:   -1,
+	}
+	http.SetCookie(resp, cookie)
+	return nil
+}
+
+// RegenerateID regenerates a session store from old session ID to new one.
+func (m *Manager) RegenerateID(resp http.ResponseWriter, req *http.Request) (sess RawStore, err error) {
+	sid := m.sessionID()
+	oldsid := GetCookie(req, m.opt.CookieName)
+	_, err = m.validSessionID(oldsid)
+	if err != nil {
+		return nil, err
+	}
+	sess, err = m.provider.Regenerate(oldsid, sid)
+	if err != nil {
+		return nil, err
+	}
+	cookie := &http.Cookie{
+		Name:     m.opt.CookieName,
+		Value:    sid,
+		Path:     m.opt.CookiePath,
+		HttpOnly: true,
+		Secure:   m.opt.Secure,
+		Domain:   m.opt.Domain,
+		SameSite: m.opt.SameSite,
+	}
+	if m.opt.CookieLifeTime >= 0 {
+		cookie.MaxAge = m.opt.CookieLifeTime
+	}
+	http.SetCookie(resp, cookie)
+	req.AddCookie(cookie)
+	return sess, nil
+}
+
+// Count counts and returns number of sessions.
+func (m *Manager) Count() int {
+	return m.provider.Count()
+}
+
+// GC starts GC job in a certain period.
+func (m *Manager) GC() {
+	m.provider.GC()
+}
+
+// startGC starts GC job in a certain period.
+func (m *Manager) startGC() {
+	m.GC()
+	time.AfterFunc(time.Duration(m.opt.Gclifetime)*time.Second, func() { m.startGC() })
+}
+
+// SetSecure indicates whether to set cookie with HTTPS or not.
+func (m *Manager) SetSecure(secure bool) {
+	m.opt.Secure = secure
+}
diff --git a/vendor/gitea.com/go-chi/session/utils.go b/vendor/gitea.com/go-chi/session/utils.go
new file mode 100644
index 0000000000..001bae6d98
--- /dev/null
+++ b/vendor/gitea.com/go-chi/session/utils.go
@@ -0,0 +1,65 @@
+// Copyright 2013 Beego Authors
+// Copyright 2014 The Macaron Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"): you may
+// not use this file except in compliance with the License. You may obtain
+// a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations
+// under the License.
+
+package session
+
+import (
+	"bytes"
+	"crypto/rand"
+	"encoding/gob"
+	"io"
+
+	"github.com/unknwon/com"
+)
+
+func init() {
+	gob.Register([]interface{}{})
+	gob.Register(map[int]interface{}{})
+	gob.Register(map[string]interface{}{})
+	gob.Register(map[interface{}]interface{}{})
+	gob.Register(map[string]string{})
+	gob.Register(map[int]string{})
+	gob.Register(map[int]int{})
+	gob.Register(map[int]int64{})
+}
+
+// EncodeGob encodes obj with gob
+func EncodeGob(obj map[interface{}]interface{}) ([]byte, error) {
+	for _, v := range obj {
+		gob.Register(v)
+	}
+	buf := bytes.NewBuffer(nil)
+	err := gob.NewEncoder(buf).Encode(obj)
+	return buf.Bytes(), err
+}
+
+// DecodeGob decodes bytes to obj
+func DecodeGob(encoded []byte) (out map[interface{}]interface{}, err error) {
+	buf := bytes.NewBuffer(encoded)
+	err = gob.NewDecoder(buf).Decode(&out)
+	return out, err
+}
+
+// NOTE: A local copy in case of underlying package change
+var alphanum = []byte("0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz")
+
+// generateRandomKey creates a random key with the given strength.
+func generateRandomKey(strength int) []byte {
+	k := make([]byte, strength)
+	if n, err := io.ReadFull(rand.Reader, k); n != strength || err != nil {
+		return com.RandomCreateBytes(strength, alphanum...)
+	}
+	return k
+}