forgejo/models/lfs.go

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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
2016-12-26 01:16:37 +00:00
package models
import (
"errors"
"github.com/go-xorm/xorm"
"time"
)
// LFSMetaObject stores metadata for LFS tracked files.
type LFSMetaObject struct {
ID int64 `xorm:"pk autoincr"`
Oid string `xorm:"UNIQUE(s) INDEX NOT NULL"`
Size int64 `xorm:"NOT NULL"`
RepositoryID int64 `xorm:"UNIQUE(s) INDEX NOT NULL"`
Existing bool `xorm:"-"`
Created time.Time `xorm:"-"`
CreatedUnix int64
}
// LFSTokenResponse defines the JSON structure in which the JWT token is stored.
// This structure is fetched via SSH and passed by the Git LFS client to the server
// endpoint for authorization.
type LFSTokenResponse struct {
Header map[string]string `json:"header"`
Href string `json:"href"`
}
var (
// ErrLFSObjectNotExist is returned from lfs models functions in order
// to differentiate between database and missing object errors.
ErrLFSObjectNotExist = errors.New("LFS Meta object does not exist")
)
const (
// LFSMetaFileIdentifier is the string appearing at the first line of LFS pointer files.
// https://github.com/git-lfs/git-lfs/blob/master/docs/spec.md
LFSMetaFileIdentifier = "version https://git-lfs.github.com/spec/v1"
// LFSMetaFileOidPrefix appears in LFS pointer files on a line before the sha256 hash.
LFSMetaFileOidPrefix = "oid sha256:"
)
// NewLFSMetaObject stores a given populated LFSMetaObject structure in the database
// if it is not already present.
func NewLFSMetaObject(m *LFSMetaObject) (*LFSMetaObject, error) {
var err error
has, err := x.Get(m)
if err != nil {
return nil, err
}
if has {
m.Existing = true
return m, nil
}
sess := x.NewSession()
defer sessionRelease(sess)
if err = sess.Begin(); err != nil {
return nil, err
}
if _, err = sess.Insert(m); err != nil {
return nil, err
}
return m, sess.Commit()
}
// GetLFSMetaObjectByOid selects a LFSMetaObject entry from database by its OID.
// It may return ErrLFSObjectNotExist or a database error. If the error is nil,
// the returned pointer is a valid LFSMetaObject.
func GetLFSMetaObjectByOid(oid string) (*LFSMetaObject, error) {
if len(oid) == 0 {
return nil, ErrLFSObjectNotExist
}
m := &LFSMetaObject{Oid: oid}
has, err := x.Get(m)
if err != nil {
return nil, err
} else if !has {
return nil, ErrLFSObjectNotExist
}
return m, nil
}
// RemoveLFSMetaObjectByOid removes a LFSMetaObject entry from database by its OID.
// It may return ErrLFSObjectNotExist or a database error.
func RemoveLFSMetaObjectByOid(oid string) error {
if len(oid) == 0 {
return ErrLFSObjectNotExist
}
sess := x.NewSession()
defer sessionRelease(sess)
if err := sess.Begin(); err != nil {
return err
}
m := &LFSMetaObject{Oid: oid}
if _, err := sess.Delete(m); err != nil {
return err
}
return sess.Commit()
}
// BeforeInsert sets the time at which the LFSMetaObject was created.
func (m *LFSMetaObject) BeforeInsert() {
m.CreatedUnix = time.Now().Unix()
}
// AfterSet stores the LFSMetaObject creation time in the database as local time.
func (m *LFSMetaObject) AfterSet(colName string, _ xorm.Cell) {
switch colName {
case "created_unix":
m.Created = time.Unix(m.CreatedUnix, 0).Local()
}
}