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Code Issues Releases Wiki Activity

Update github.com/kurin/blazer to 0.5.0

Browse Source 
This includes support for the upcoming B2 application keys feature.
This commit is contained in:
Alexander Neumann 2018-07-22 14:12:02 +02:00
parent 67535e00a8
commit 7ffc03ff8f
25 changed files with 4655 additions and 336 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

181
Gopkg.lock generated
View File

@ -4,11 +4,7 @@
[[projects]]
branch = "master"
name = "bazil.org/fuse"
packages = [
".",
"fs",
"fuseutil"
]
packages = [".","fs","fuseutil"]
revision = "371fbbdaa8987b715bdd21d6adc4c9b20155f748"
[[projects]]
@ -19,21 +15,13 @@
[[projects]]
name = "github.com/Azure/azure-sdk-for-go"
packages = [
"storage",
"version"
]
packages = ["storage","version"]
revision = "56332fec5b308fbb6615fa1af6117394cdba186d"
version = "v15.0.0"
[[projects]]
name = "github.com/Azure/go-autorest"
packages = [
"autorest",
"autorest/adal",
"autorest/azure",
"autorest/date"
]
packages = ["autorest","autorest/adal","autorest/azure","autorest/date"]
revision = "ed4b7f5bf1ec0c9ede1fda2681d96771282f2862"
version = "v10.4.0"
@ -81,12 +69,7 @@
[[projects]]
name = "github.com/google/go-cmp"
packages = [
"cmp",
"cmp/internal/diff",
"cmp/internal/function",
"cmp/internal/value"
]
packages = ["cmp","cmp/internal/diff","cmp/internal/function","cmp/internal/value"]
revision = "8099a9787ce5dc5984ed879a3bda47dc730a8e97"
version = "v0.1.0"
@ -110,16 +93,9 @@
[[projects]]
name = "github.com/kurin/blazer"
packages = [
"b2",
"base",
"internal/b2assets",
"internal/b2types",
"internal/blog",
"x/window"
]
revision = "318e9768bf9a0fe52a64b9f8fe74f4f5caef6452"
version = "v0.4.4"
packages = ["b2","base","internal/b2assets","internal/b2types","internal/blog","x/window"]
revision = "7f1134c7489e86be5c924137996d4e421815f48a"
version = "v0.5.0"
[[projects]]
name = "github.com/marstr/guid"
@ -135,15 +111,7 @@
[[projects]]
name = "github.com/minio/minio-go"
packages = [
".",
"pkg/credentials",
"pkg/encrypt",
"pkg/policy",
"pkg/s3signer",
"pkg/s3utils",
"pkg/set"
]
packages = [".","pkg/credentials","pkg/encrypt","pkg/policy","pkg/s3signer","pkg/s3utils","pkg/set"]
revision = "66252c2a3c15f7b90cc8493d497a04ac3b6e3606"
version = "5.0.0"
@ -189,52 +157,6 @@
revision = "db83917be3b88cc307464b7d8a221c173e34a0db"
version = "v0.2.0"
[[projects]]
branch = "master"
name = "github.com/restic/restic"
packages = [
"internal/archiver",
"internal/backend",
"internal/backend/azure",
"internal/backend/b2",
"internal/backend/gs",
"internal/backend/local",
"internal/backend/location",
"internal/backend/mem",
"internal/backend/rclone",
"internal/backend/rest",
"internal/backend/s3",
"internal/backend/sftp",
"internal/backend/swift",
"internal/backend/test",
"internal/cache",
"internal/checker",
"internal/crypto",
"internal/debug",
"internal/errors",
"internal/filter",
"internal/fs",
"internal/fuse",
"internal/hashing",
"internal/index",
"internal/limiter",
"internal/list",
"internal/migrations",
"internal/mock",
"internal/options",
"internal/pack",
"internal/repository",
"internal/restic",
"internal/restorer",
"internal/test",
"internal/textfile",
"internal/ui",
"internal/ui/termstatus",
"internal/walker",
"internal/worker"
]
revision = "bd742ddb692ffeaf5ac24eefdff0c0ba3e7c17fb"
[[projects]]
name = "github.com/russross/blackfriday"
packages = ["."]
@ -255,10 +177,7 @@
[[projects]]
name = "github.com/spf13/cobra"
packages = [
".",
"doc"
]
packages = [".","doc"]
revision = "a1f051bc3eba734da4772d60e2d677f47cf93ef4"
version = "v0.0.2"
@ -271,44 +190,19 @@
[[projects]]
branch = "master"
name = "golang.org/x/crypto"
packages = [
"argon2",
"blake2b",
"curve25519",
"ed25519",
"ed25519/internal/edwards25519",
"internal/chacha20",
"pbkdf2",
"poly1305",
"scrypt",
"ssh",
"ssh/terminal"
]
packages = ["argon2","blake2b","curve25519","ed25519","ed25519/internal/edwards25519","internal/chacha20","pbkdf2","poly1305","scrypt","ssh","ssh/terminal"]
revision = "4ec37c66abab2c7e02ae775328b2ff001c3f025a"
[[projects]]
branch = "master"
name = "golang.org/x/net"
packages = [
"context",
"context/ctxhttp",
"http2",
"http2/hpack",
"idna",
"lex/httplex"
]
packages = ["context","context/ctxhttp","http2","http2/hpack","idna","lex/httplex"]
revision = "6078986fec03a1dcc236c34816c71b0e05018fda"
[[projects]]
branch = "master"
name = "golang.org/x/oauth2"
packages = [
".",
"google",
"internal",
"jws",
"jwt"
]
packages = [".","google","internal","jws","jwt"]
revision = "fdc9e635145ae97e6c2cb777c48305600cf515cb"
[[projects]]
@ -320,65 +214,24 @@
[[projects]]
branch = "master"
name = "golang.org/x/sys"
packages = [
"cpu",
"unix",
"windows"
]
packages = ["cpu","unix","windows"]
revision = "7db1c3b1a98089d0071c84f646ff5c96aad43682"
[[projects]]
name = "golang.org/x/text"
packages = [
"collate",
"collate/build",
"encoding",
"encoding/internal",
"encoding/internal/identifier",
"encoding/unicode",
"internal/colltab",
"internal/gen",
"internal/tag",
"internal/triegen",
"internal/ucd",
"internal/utf8internal",
"language",
"runes",
"secure/bidirule",
"transform",
"unicode/bidi",
"unicode/cldr",
"unicode/norm",
"unicode/rangetable"
]
packages = ["collate","collate/build","encoding","encoding/internal","encoding/internal/identifier","encoding/unicode","internal/colltab","internal/gen","internal/tag","internal/triegen","internal/ucd","internal/utf8internal","language","runes","secure/bidirule","transform","unicode/bidi","unicode/cldr","unicode/norm","unicode/rangetable"]
revision = "f21a4dfb5e38f5895301dc265a8def02365cc3d0"
version = "v0.3.0"
[[projects]]
branch = "master"
name = "google.golang.org/api"
packages = [
"gensupport",
"googleapi",
"googleapi/internal/uritemplates",
"storage/v1"
]
packages = ["gensupport","googleapi","googleapi/internal/uritemplates","storage/v1"]
revision = "dbbc13f71100fa6ece308335445fca6bb0dd5c2f"
[[projects]]
name = "google.golang.org/appengine"
packages = [
".",
"internal",
"internal/app_identity",
"internal/base",
"internal/datastore",
"internal/log",
"internal/modules",
"internal/remote_api",
"internal/urlfetch",
"urlfetch"
]
packages = [".","internal","internal/app_identity","internal/base","internal/datastore","internal/log","internal/modules","internal/remote_api","internal/urlfetch","urlfetch"]
revision = "150dc57a1b433e64154302bdc40b6bb8aefa313a"
version = "v1.0.0"
@ -397,6 +250,6 @@
[solve-meta]
analyzer-name = "dep"
analyzer-version = 1
inputs-digest = "cfab88aa746c1535f17c59e8db9ee2ca6908b840f71d7331de84c722221348d0"
inputs-digest = "a5de339cba7570216b212439b90e1e6c384c94be8342fe7755b7cb66aa0a3440"
solver-name = "gps-cdcl"
solver-version = 1

2
vendor/github.com/kurin/blazer/.gitignore generated vendored
View File

@ -1,4 +1,4 @@
bonfire
bin/bonfire/bonfire
# Compiled Object files, Static and Dynamic libs (Shared Objects)
*.o

73
vendor/github.com/kurin/blazer/b2/b2.go generated vendored
View File

@ -32,6 +32,7 @@ import (
"fmt"
"io"
"net/http"
"net/url"
"regexp"
"strconv"
"sync"
@ -46,6 +47,7 @@ type Client struct {
sWriters map[string]*Writer
sReaders map[string]*Reader
sMethods []methodCounter
opts clientOptions
}
// NewClient creates and returns a new Client with valid B2 service account
@ -63,7 +65,10 @@ func NewClient(ctx context.Context, account, key string, opts ...ClientOption) (
},
}
opts = append(opts, client(c))
if err := c.backend.authorizeAccount(ctx, account, key, opts...); err != nil {
for _, f := range opts {
f(&c.opts)
}
if err := c.backend.authorizeAccount(ctx, account, key, c.opts); err != nil {
return nil, err
}
return c, nil
@ -75,27 +80,9 @@ type clientOptions struct {
failSomeUploads bool
expireTokens bool
capExceeded bool
apiBase string
userAgents []string
}
// for testing
func (c clientOptions) eq(o clientOptions) bool {
if c.client != o.client ||
c.transport != o.transport ||
c.failSomeUploads != o.failSomeUploads ||
c.expireTokens != o.expireTokens ||
c.capExceeded != o.capExceeded {
return false
}
if len(c.userAgents) != len(o.userAgents) {
return false
}
for i := range c.userAgents {
if c.userAgents[i] != o.userAgents[i] {
return false
}
}
return true
writerOpts []WriterOption
}
// A ClientOption allows callers to adjust various per-client settings.
@ -112,6 +99,13 @@ func UserAgent(agent string) ClientOption {
}
}
// APIBase returns a ClientOption specifying the URL root of API requests.
func APIBase(url string) ClientOption {
return func(o *clientOptions) {
o.apiBase = url
}
}
// Transport sets the underlying HTTP transport mechanism. If unset,
// http.DefaultTransport is used.
func Transport(rt http.RoundTripper) ClientOption {
@ -434,7 +428,7 @@ type Attrs struct {
ContentType string // Used on upload, default is "application/octet-stream".
Status ObjectState // Not used on upload.
UploadTimestamp time.Time // Not used on upload.
SHA1 string // Not used on upload. Can be "none" for large files.
SHA1 string // Can be "none" for large files. If set on upload, will be used for large files.
LastModified time.Time // If present, and there are fewer than 10 keys in the Info field, this is saved on upload.
Info map[string]string // Save arbitrary metadata on upload, but limited to 10 keys.
}
@ -474,6 +468,9 @@ func (o *Object) Attrs(ctx context.Context) (*Attrs, error) {
mtime = time.Unix(ms/1e3, (ms%1e3)*1e6)
delete(info, "src_last_modified_millis")
}
if v, ok := info["large_file_sha1"]; ok {
sha = v
}
return &Attrs{
Name: name,
Size: size,
@ -524,14 +521,21 @@ func (o *Object) URL() string {
// overwritten are not deleted, but are "hidden".
//
// Callers must close the writer when finished and check the error status.
func (o *Object) NewWriter(ctx context.Context) *Writer {
func (o *Object) NewWriter(ctx context.Context, opts ...WriterOption) *Writer {
ctx, cancel := context.WithCancel(ctx)
return &Writer{
w := &Writer{
o: o,
name: o.name,
ctx: ctx,
cancel: cancel,
}
for _, f := range o.b.c.opts.writerOpts {
f(w)
}
for _, f := range opts {
f(w)
}
return w
}
// NewRangeReader returns a reader for the given object, reading up to length
@ -760,5 +764,24 @@ func (b *Bucket) getObject(ctx context.Context, name string) (*Object, error) {
// in a private bucket. Only objects that begin with prefix can be accessed.
// The token expires after the given duration.
func (b *Bucket) AuthToken(ctx context.Context, prefix string, valid time.Duration) (string, error) {
return b.b.getDownloadAuthorization(ctx, prefix, valid)
return b.b.getDownloadAuthorization(ctx, prefix, valid, "")
}
// AuthURL returns a URL for the given object with embedded token and,
// possibly, b2ContentDisposition arguments. Leave b2cd blank for no content
// disposition.
func (o *Object) AuthURL(ctx context.Context, valid time.Duration, b2cd string) (*url.URL, error) {
token, err := o.b.b.getDownloadAuthorization(ctx, o.name, valid, b2cd)
if err != nil {
return nil, err
}
urlString := fmt.Sprintf("%s?Authorization=%s", o.URL(), url.QueryEscape(token))
if b2cd != "" {
urlString = fmt.Sprintf("%s&b2ContentDisposition=%s", urlString, url.QueryEscape(b2cd))
}
u, err := url.Parse(urlString)
if err != nil {
return nil, err
}
return u, nil
}

12
vendor/github.com/kurin/blazer/b2/b2_test.go generated vendored
View File

@ -71,7 +71,7 @@ type testRoot struct {
bucketMap map[string]map[string]string
}
func (t *testRoot) authorizeAccount(context.Context, string, string, ...ClientOption) error {
func (t *testRoot) authorizeAccount(context.Context, string, string, clientOptions) error {
t.auths++
return nil
}
@ -108,6 +108,13 @@ func (t *testRoot) transient(err error) bool {
return e.retry || e.reupload || e.backoff > 0
}
func (t *testRoot) createKey(context.Context, string, []string, time.Duration, string, string) (b2KeyInterface, error) {
return nil, nil
}
func (t *testRoot) listKeys(context.Context, int, string) ([]b2KeyInterface, string, error) {
return nil, "", nil
}
func (t *testRoot) createBucket(_ context.Context, name, _ string, _ map[string]string, _ []LifecycleRule) (b2BucketInterface, error) {
if err := t.errs.getError("createBucket"); err != nil {
return nil, err
@ -147,6 +154,7 @@ func (t *testBucket) btype() string { return
func (t *testBucket) attrs() *BucketAttrs { return nil }
func (t *testBucket) deleteBucket(context.Context) error { return nil }
func (t *testBucket) updateBucket(context.Context, *BucketAttrs) error { return nil }
func (t *testBucket) id() string { return "" }
func (t *testBucket) getUploadURL(context.Context) (b2URLInterface, error) {
if err := t.errs.getError("getUploadURL"); err != nil {
@ -221,7 +229,7 @@ func (t *testBucket) downloadFileByName(_ context.Context, name string, offset,
}
func (t *testBucket) hideFile(context.Context, string) (b2FileInterface, error) { return nil, nil }
func (t *testBucket) getDownloadAuthorization(context.Context, string, time.Duration) (string, error) {
func (t *testBucket) getDownloadAuthorization(context.Context, string, time.Duration, string) (string, error) {
return "", nil
}
func (t *testBucket) baseURL() string { return "" }

99
vendor/github.com/kurin/blazer/b2/backend.go generated vendored
View File

@ -28,22 +28,25 @@ type beRootInterface interface {
reauth(error) bool
transient(error) bool
reupload(error) bool
authorizeAccount(context.Context, string, string, ...ClientOption) error
authorizeAccount(context.Context, string, string, clientOptions) error
reauthorizeAccount(context.Context) error
createBucket(ctx context.Context, name, btype string, info map[string]string, rules []LifecycleRule) (beBucketInterface, error)
listBuckets(context.Context) ([]beBucketInterface, error)
createKey(context.Context, string, []string, time.Duration, string, string) (beKeyInterface, error)
listKeys(context.Context, int, string) ([]beKeyInterface, string, error)
}
type beRoot struct {
account, key string
b2i b2RootInterface
options []ClientOption
options clientOptions
}
type beBucketInterface interface {
name() string
btype() BucketType
attrs() *BucketAttrs
id() string
updateBucket(context.Context, *BucketAttrs) error
deleteBucket(context.Context) error
getUploadURL(context.Context) (beURLInterface, error)
@ -53,7 +56,7 @@ type beBucketInterface interface {
listUnfinishedLargeFiles(context.Context, int, string) ([]beFileInterface, string, error)
downloadFileByName(context.Context, string, int64, int64) (beFileReaderInterface, error)
hideFile(context.Context, string) (beFileInterface, error)
getDownloadAuthorization(context.Context, string, time.Duration) (string, error)
getDownloadAuthorization(context.Context, string, time.Duration, string) (string, error)
baseURL() string
file(string, string) beFileInterface
}
@ -145,26 +148,39 @@ type beFileInfo struct {
stamp time.Time
}
type beKeyInterface interface {
del(context.Context) error
caps() []string
name() string
expires() time.Time
secret() string
}
type beKey struct {
b2i beRootInterface
k b2KeyInterface
}
func (r *beRoot) backoff(err error) time.Duration { return r.b2i.backoff(err) }
func (r *beRoot) reauth(err error) bool { return r.b2i.reauth(err) }
func (r *beRoot) reupload(err error) bool { return r.b2i.reupload(err) }
func (r *beRoot) transient(err error) bool { return r.b2i.transient(err) }
func (r *beRoot) authorizeAccount(ctx context.Context, account, key string, opts ...ClientOption) error {
func (r *beRoot) authorizeAccount(ctx context.Context, account, key string, c clientOptions) error {
f := func() error {
if err := r.b2i.authorizeAccount(ctx, account, key, opts...); err != nil {
if err := r.b2i.authorizeAccount(ctx, account, key, c); err != nil {
return err
}
r.account = account
r.key = key
r.options = opts
r.options = c
return nil
}
return withBackoff(ctx, r, f)
}
func (r *beRoot) reauthorizeAccount(ctx context.Context) error {
return r.authorizeAccount(ctx, r.account, r.key, r.options...)
return r.authorizeAccount(ctx, r.account, r.key, r.options)
}
func (r *beRoot) createBucket(ctx context.Context, name, btype string, info map[string]string, rules []LifecycleRule) (beBucketInterface, error) {
@ -213,17 +229,58 @@ func (r *beRoot) listBuckets(ctx context.Context) ([]beBucketInterface, error) {
return buckets, nil
}
func (b *beBucket) name() string {
return b.b2bucket.name()
func (r *beRoot) createKey(ctx context.Context, name string, caps []string, valid time.Duration, bucketID string, prefix string) (beKeyInterface, error) {
var k *beKey
f := func() error {
g := func() error {
got, err := r.b2i.createKey(ctx, name, caps, valid, bucketID, prefix)
if err != nil {
return err
}
k = &beKey{
b2i: r,
k: got,
}
return nil
}
return withReauth(ctx, r, g)
}
if err := withBackoff(ctx, r, f); err != nil {
return nil, err
}
return k, nil
}
func (b *beBucket) btype() BucketType {
return BucketType(b.b2bucket.btype())
func (r *beRoot) listKeys(ctx context.Context, max int, next string) ([]beKeyInterface, string, error) {
var keys []beKeyInterface
var cur string
f := func() error {
g := func() error {
got, n, err := r.b2i.listKeys(ctx, max, next)
if err != nil {
return err
}
cur = n
for _, g := range got {
keys = append(keys, &beKey{
b2i: r,
k: g,
})
}
return nil
}
return withReauth(ctx, r, g)
}
if err := withBackoff(ctx, r, f); err != nil {
return nil, "", err
}
return keys, cur, nil
}
func (b *beBucket) attrs() *BucketAttrs {
return b.b2bucket.attrs()
}
func (b *beBucket) name() string { return b.b2bucket.name() }
func (b *beBucket) btype() BucketType { return BucketType(b.b2bucket.btype()) }
func (b *beBucket) attrs() *BucketAttrs { return b.b2bucket.attrs() }
func (b *beBucket) id() string { return b.b2bucket.id() }
func (b *beBucket) updateBucket(ctx context.Context, attrs *BucketAttrs) error {
f := func() error {
@ -412,11 +469,11 @@ func (b *beBucket) hideFile(ctx context.Context, name string) (beFileInterface,
return file, nil
}
func (b *beBucket) getDownloadAuthorization(ctx context.Context, p string, v time.Duration) (string, error) {
func (b *beBucket) getDownloadAuthorization(ctx context.Context, p string, v time.Duration, s string) (string, error) {
var tok string
f := func() error {
g := func() error {
t, err := b.b2bucket.getDownloadAuthorization(ctx, p, v)
t, err := b.b2bucket.getDownloadAuthorization(ctx, p, v, s)
if err != nil {
return err
}
@ -649,6 +706,12 @@ func (b *beFilePart) number() int { return b.b2filePart.number() }
func (b *beFilePart) sha1() string { return b.b2filePart.sha1() }
func (b *beFilePart) size() int64 { return b.b2filePart.size() }
func (b *beKey) del(ctx context.Context) error { return b.k.del(ctx) }
func (b *beKey) caps() []string { return b.k.caps() }
func (b *beKey) name() string { return b.k.name() }
func (b *beKey) expires() time.Time { return b.k.expires() }
func (b *beKey) secret() string { return b.k.secret() }
func jitter(d time.Duration) time.Duration {
f := float64(d)
f /= 50
@ -657,8 +720,8 @@ func jitter(d time.Duration) time.Duration {
}
func getBackoff(d time.Duration) time.Duration {
if d > 15*time.Second {
return d + jitter(d)
if d > 30*time.Second {
return 30*time.Second + jitter(d)
}
return d*2 + jitter(d*2)
}

60
vendor/github.com/kurin/blazer/b2/baseline.go generated vendored
View File

@ -27,19 +27,22 @@ import (
// the only file in b2 that imports base.
type b2RootInterface interface {
authorizeAccount(context.Context, string, string, ...ClientOption) error
authorizeAccount(context.Context, string, string, clientOptions) error
transient(error) bool
backoff(error) time.Duration
reauth(error) bool
reupload(error) bool
createBucket(context.Context, string, string, map[string]string, []LifecycleRule) (b2BucketInterface, error)
listBuckets(context.Context) ([]b2BucketInterface, error)
createKey(context.Context, string, []string, time.Duration, string, string) (b2KeyInterface, error)
listKeys(context.Context, int, string) ([]b2KeyInterface, string, error)
}
type b2BucketInterface interface {
name() string
btype() string
attrs() *BucketAttrs
id() string
updateBucket(context.Context, *BucketAttrs) error
deleteBucket(context.Context) error
getUploadURL(context.Context) (b2URLInterface, error)
@ -49,7 +52,7 @@ type b2BucketInterface interface {
listUnfinishedLargeFiles(context.Context, int, string) ([]b2FileInterface, string, error)
downloadFileByName(context.Context, string, int64, int64) (b2FileReaderInterface, error)
hideFile(context.Context, string) (b2FileInterface, error)
getDownloadAuthorization(context.Context, string, time.Duration) (string, error)
getDownloadAuthorization(context.Context, string, time.Duration, string) (string, error)
baseURL() string
file(string, string) b2FileInterface
}
@ -96,6 +99,14 @@ type b2FilePartInterface interface {
size() int64
}
type b2KeyInterface interface {
del(context.Context) error
caps() []string
name() string
expires() time.Time
secret() string
}
type b2Root struct {
b *base.B2
}
@ -132,11 +143,11 @@ type b2FilePart struct {
b *base.FilePart
}
func (b *b2Root) authorizeAccount(ctx context.Context, account, key string, opts ...ClientOption) error {
c := &clientOptions{}
for _, f := range opts {
f(c)
}
type b2Key struct {
b *base.Key
}
func (b *b2Root) authorizeAccount(ctx context.Context, account, key string, c clientOptions) error {
var aopts []base.AuthOption
ct := &clientTransport{client: c.client}
if c.transport != nil {
@ -152,6 +163,9 @@ func (b *b2Root) authorizeAccount(ctx context.Context, account, key string, opts
if c.capExceeded {
aopts = append(aopts, base.ForceCapExceeded())
}
if c.apiBase != "" {
aopts = append(aopts, base.SetAPIBase(c.apiBase))
}
for _, agent := range c.userAgents {
aopts = append(aopts, base.UserAgent(agent))
}
@ -249,6 +263,26 @@ func (b *b2Bucket) updateBucket(ctx context.Context, attrs *BucketAttrs) error {
return err
}
func (b *b2Root) createKey(ctx context.Context, name string, caps []string, valid time.Duration, bucketID string, prefix string) (b2KeyInterface, error) {
k, err := b.b.CreateKey(ctx, name, caps, valid, bucketID, prefix)
if err != nil {
return nil, err
}
return &b2Key{k}, nil
}
func (b *b2Root) listKeys(ctx context.Context, max int, next string) ([]b2KeyInterface, string, error) {
keys, next, err := b.b.ListKeys(ctx, max, next)
if err != nil {
return nil, "", err
}
var k []b2KeyInterface
for _, key := range keys {
k = append(k, &b2Key{key})
}
return k, next, nil
}
func (b *b2Bucket) deleteBucket(ctx context.Context) error {
return b.b.DeleteBucket(ctx)
}
@ -277,6 +311,8 @@ func (b *b2Bucket) attrs() *BucketAttrs {
}
}
func (b *b2Bucket) id() string { return b.b.ID }
func (b *b2Bucket) getUploadURL(ctx context.Context) (b2URLInterface, error) {
url, err := b.b.GetUploadURL(ctx)
if err != nil {
@ -352,8 +388,8 @@ func (b *b2Bucket) hideFile(ctx context.Context, name string) (b2FileInterface,
return &b2File{f}, nil
}
func (b *b2Bucket) getDownloadAuthorization(ctx context.Context, p string, v time.Duration) (string, error) {
return b.b.GetDownloadAuthorization(ctx, p, v)
func (b *b2Bucket) getDownloadAuthorization(ctx context.Context, p string, v time.Duration, s string) (string, error) {
return b.b.GetDownloadAuthorization(ctx, p, v, s)
}
func (b *b2Bucket) baseURL() string {
@ -466,3 +502,9 @@ func (b *b2FileInfo) stats() (string, string, int64, string, map[string]string,
func (b *b2FilePart) number() int { return b.b.Number }
func (b *b2FilePart) sha1() string { return b.b.SHA1 }
func (b *b2FilePart) size() int64 { return b.b.Size }
func (b *b2Key) del(ctx context.Context) error { return b.b.Delete(ctx) }
func (b *b2Key) caps() []string { return b.b.Capabilities }
func (b *b2Key) name() string { return b.b.Name }
func (b *b2Key) expires() time.Time { return b.b.Expires }
func (b *b2Key) secret() string { return b.b.Secret }

222
vendor/github.com/kurin/blazer/b2/integration_test.go generated vendored
View File

@ -22,6 +22,7 @@ import (
"encoding/hex"
"fmt"
"io"
"io/ioutil"
"net/http"
"os"
"reflect"
@ -29,6 +30,7 @@ import (
"testing"
"time"
"github.com/kurin/blazer/internal/blog"
"github.com/kurin/blazer/x/transport"
)
@ -137,6 +139,9 @@ func TestReaderFromLive(t *testing.T) {
if rn != n {
t.Errorf("Read from B2: got %d bytes, want %d bytes", rn, n)
}
if err, ok := r.Verify(); ok && err != nil {
t.Errorf("Read from B2: %v", err)
}
if err := r.Close(); err != nil {
t.Errorf("r.Close(): %v", err)
}
@ -323,6 +328,7 @@ func TestAttrs(t *testing.T) {
for _, attrs := range attrlist {
o := bucket.Object(e.name)
w := o.NewWriter(ctx).WithAttrs(attrs)
w.ChunkSize = 5e6
if _, err := io.Copy(w, io.LimitReader(zReader{}, e.size)); err != nil {
t.Error(err)
continue
@ -429,6 +435,57 @@ func TestAuthTokLive(t *testing.T) {
}
}
func TestObjAuthTokLive(t *testing.T) {
ctx := context.Background()
ctx, cancel := context.WithTimeout(ctx, time.Minute)
defer cancel()
bucket, done := startLiveTest(ctx, t)
defer done()
table := []struct {
obj string
d time.Duration
b2cd string
}{
{
obj: "foo/bar",
d: time.Minute,
},
{
obj: "foo2/thing.pdf",
d: time.Minute,
b2cd: "attachment",
},
{
obj: "foo2/thing.pdf",
d: time.Minute,
b2cd: `attachment; filename="what.png"`,
},
}
for _, e := range table {
fw := bucket.Object(e.obj).NewWriter(ctx)
io.Copy(fw, io.LimitReader(zReader{}, 1e5))
if err := fw.Close(); err != nil {
t.Fatal(err)
}
url, err := bucket.Object(e.obj).AuthURL(ctx, e.d, e.b2cd)
if err != nil {
t.Fatal(err)
}
blog.V(2).Infof("downloading %s", url.String())
frsp, err := http.Get(url.String())
if err != nil {
t.Fatal(err)
}
if frsp.StatusCode != 200 {
t.Fatalf("%s: got %s, want 200", url.String(), frsp.Status)
}
}
}
func TestRangeReaderLive(t *testing.T) {
ctx := context.Background()
ctx, cancel := context.WithTimeout(ctx, time.Minute)
@ -510,6 +567,9 @@ func TestRangeReaderLive(t *testing.T) {
if got != want {
t.Errorf("NewRangeReader(_, %d, %d): got %q, want %q", e.offset, e.length, got, want)
}
if err, ok := r.Verify(); ok && err != nil {
t.Errorf("NewRangeReader(_, %d, %d): %v", e.offset, e.length, err)
}
}
}
@ -863,29 +923,161 @@ func TestReauthPreservesOptions(t *testing.T) {
bucket, done := startLiveTest(ctx, t)
defer done()
var first []ClientOption
opts := bucket.r.(*beRoot).options
for _, o := range opts {
first = append(first, o)
}
first := bucket.r.(*beRoot).options
if err := bucket.r.reauthorizeAccount(ctx); err != nil {
t.Fatalf("reauthorizeAccount: %v", err)
}
second := bucket.r.(*beRoot).options
if len(second) != len(first) {
t.Fatalf("options mismatch: got %d options, wanted %d", len(second), len(first))
if !reflect.DeepEqual(first, second) {
// Test that they are literally the same set of options, which is an
// implementation detail but is fine for now.
t.Errorf("options mismatch: got %v, want %v", second, first)
}
}
func TestVerifyReader(t *testing.T) {
ctx := context.Background()
bucket, done := startLiveTest(ctx, t)
defer done()
table := []struct {
name string
fakeSHA string
size int64
off, len int64
valid bool
}{
{
name: "first",
size: 100,
off: 0,
len: -1,
valid: true,
},
{
name: "second",
size: 100,
off: 0,
len: 100,
valid: true,
},
{
name: "third",
size: 100,
off: 0,
len: 99,
valid: false,
},
{
name: "fourth",
size: 5e6 + 100,
off: 0,
len: -1,
valid: false,
},
{
name: "fifth",
size: 5e6 + 100,
off: 0,
len: -1,
fakeSHA: "fbc815f2d6518858dec83ccb46263875fc894d88",
valid: true,
},
}
var f, s clientOptions
for i := range first {
first[i](&f)
second[i](&s)
for _, e := range table {
o := bucket.Object(e.name)
w := o.NewWriter(ctx)
if e.fakeSHA != "" {
w = w.WithAttrs(&Attrs{SHA1: e.fakeSHA})
}
w.ChunkSize = 5e6
if _, err := io.Copy(w, io.LimitReader(zReader{}, e.size)); err != nil {
t.Error(err)
continue
}
if err := w.Close(); err != nil {
t.Error(err)
continue
}
r := o.NewRangeReader(ctx, e.off, e.len)
if _, err := io.Copy(ioutil.Discard, r); err != nil {
t.Error(err)
}
err, ok := r.Verify()
if ok != e.valid {
t.Errorf("%s: bad validity: got %v, want %v", e.name, ok, e.valid)
}
if e.valid && err != nil {
t.Errorf("%s does not verify: %v", e.name, err)
}
}
}
func TestCreateDeleteKey(t *testing.T) {
ctx := context.Background()
bucket, done := startLiveTest(ctx, t)
defer done()
table := []struct {
d time.Duration
e time.Time
bucket bool
cap []string
pfx string
}{
{
cap: []string{"deleteKeys"},
},
{
d: time.Minute,
cap: []string{"deleteKeys"},
pfx: "prefox",
},
{
e: time.Now().Add(time.Minute), // <shrug emojis>
cap: []string{"writeFiles", "listFiles"},
bucket: true,
},
{
d: time.Minute,
cap: []string{"writeFiles", "listFiles"},
pfx: "prefox",
bucket: true,
},
}
if !f.eq(s) {
t.Errorf("options mismatch: got %v, want %v", s, f)
for _, e := range table {
var opts []KeyOption
for _, cap := range e.cap {
opts = append(opts, Capability(cap))
}
if e.d != 0 {
opts = append(opts, Lifetime(e.d))
}
if !e.e.IsZero() {
opts = append(opts, Deadline(e.e))
}
var key *Key
if e.bucket {
opts = append(opts, Prefix(e.pfx))
bkey, err := bucket.CreateKey(ctx, "whee", opts...)
if err != nil {
t.Errorf("Bucket.CreateKey(%v, %v): %v", bucket.Name(), e, err)
continue
}
key = bkey
} else {
gkey, err := bucket.c.CreateKey(ctx, "whee", opts...)
if err != nil {
t.Errorf("Client.CreateKey(%v): %v", e, err)
continue
}
key = gkey
}
if err := key.Delete(ctx); err != nil {
t.Errorf("key.Delete(): %v", err)
}
}
}

148
vendor/github.com/kurin/blazer/b2/key.go generated vendored Normal file
View File

@ -0,0 +1,148 @@
// Copyright 2018, Google
//
// 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 b2
import (
"context"
"errors"
"io"
"time"
)
// Key is a B2 application key. A Key grants limited access on a global or
// per-bucket basis.
type Key struct {
c *Client
k beKeyInterface
}
// Capabilities returns the list of capabilites granted by this application
// key.
func (k *Key) Capabilities() []string { return k.k.caps() }
// Name returns the user-supplied name of this application key. Key names are
// useless.
func (k *Key) Name() string { return k.k.name() }
// Expires returns the expiration date of this application key.
func (k *Key) Expires() time.Time { return k.k.expires() }
// Delete removes the key from B2.
func (k *Key) Delete(ctx context.Context) error { return k.k.del(ctx) }
// Secret returns the value that should be passed into NewClient(). It is only
// available on newly created keys; it is not available from ListKey
// operations.
func (k *Key) Secret() string { return k.k.secret() }
type keyOptions struct {
caps []string
prefix string
lifetime time.Duration
}
// KeyOption specifies desired properties for application keys.
type KeyOption func(*keyOptions)
// Lifetime requests a key with the given lifetime.
func Lifetime(d time.Duration) KeyOption {
return func(k *keyOptions) {
k.lifetime = d
}
}
// Deadline requests a key that expires after the given date.
func Deadline(t time.Time) KeyOption {
d := t.Sub(time.Now())
return Lifetime(d)
}
// Capability requests a key with the given capability.
func Capability(cap string) KeyOption {
return func(k *keyOptions) {
k.caps = append(k.caps, cap)
}
}
// Prefix limits the requested application key to be valid only for objects
// that begin with prefix. This can only be used when requesting an
// application key within a specific bucket.
func Prefix(prefix string) KeyOption {
return func(k *keyOptions) {
k.prefix = prefix
}
}
// CreateKey creates a global application key that is valid for all buckets in
// this project. The key's secret will only be accessible on the object
// returned from this call.
func (c *Client) CreateKey(ctx context.Context, name string, opts ...KeyOption) (*Key, error) {
var ko keyOptions
for _, o := range opts {
o(&ko)
}
if ko.prefix != "" {
return nil, errors.New("Prefix is not a valid option for global application keys")
}
ki, err := c.backend.createKey(ctx, name, ko.caps, ko.lifetime, "", "")
if err != nil {
return nil, err
}
return &Key{
c: c,
k: ki,
}, nil
}
// ListKeys lists all the keys associated with this project. It takes the
// maximum number of keys it should return in a call, as well as a cursor
// (which should be empty for the initial call). It will return up to count
// keys, as well as the cursor for the next invocation.
//
// ListKeys returns io.EOF when there are no more keys, although it may do so
// concurrently with the final set of keys.
func (c *Client) ListKeys(ctx context.Context, count int, cursor string) ([]*Key, string, error) {
ks, next, err := c.backend.listKeys(ctx, count, cursor)
if err != nil {
return nil, "", err
}
if len(ks) == 0 {
return nil, "", io.EOF
}
var keys []*Key
for _, k := range ks {
keys = append(keys, &Key{
c: c,
k: k,
})
}
return keys, next, nil
}
// CreateKey creates a scoped application key that is valid only for this bucket.
func (b *Bucket) CreateKey(ctx context.Context, name string, opts ...KeyOption) (*Key, error) {
var ko keyOptions
for _, o := range opts {
o(&ko)
}
ki, err := b.r.createKey(ctx, name, ko.caps, ko.lifetime, b.b.id(), ko.prefix)
if err != nil {
return nil, err
}
return &Key{
c: b.c,
k: ki,
}, nil
}

149
vendor/github.com/kurin/blazer/b2/reader.go generated vendored
View File

@ -17,9 +17,13 @@ package b2
import (
"bytes"
"context"
"crypto/sha1"
"errors"
"fmt"
"hash"
"io"
"sync"
"time"
"github.com/kurin/blazer/internal/blog"
)
@ -38,21 +42,25 @@ type Reader struct {
// 10MB.
ChunkSize int
ctx context.Context
cancel context.CancelFunc // cancels ctx
o *Object
name string
offset int64 // the start of the file
length int64 // the length to read, or -1
csize int // chunk size
read int // amount read
chwid int // chunks written
chrid int // chunks read
chbuf chan *rchunk
init sync.Once
rmux sync.Mutex // guards rcond
rcond *sync.Cond
chunks map[int]*rchunk
ctx context.Context
cancel context.CancelFunc // cancels ctx
o *Object
name string
offset int64 // the start of the file
length int64 // the length to read, or -1
csize int // chunk size
read int // amount read
chwid int // chunks written
chrid int // chunks read
chbuf chan *rchunk
init sync.Once
chunks map[int]*rchunk
vrfy hash.Hash
readOffEnd bool
sha1 string
rmux sync.Mutex // guards rcond
rcond *sync.Cond
emux sync.RWMutex // guards err, believe it or not
err error
@ -122,10 +130,12 @@ func (r *Reader) thread() {
}
r.length -= size
}
var b backoff
redo:
fr, err := r.o.b.b.downloadFileByName(r.ctx, r.name, offset, size)
if err == errNoMoreContent {
// this read generated a 416 so we are entirely past the end of the object
r.readOffEnd = true
buf.final = true
r.rmux.Lock()
r.chunks[chunkID] = buf
@ -138,7 +148,10 @@ func (r *Reader) thread() {
r.rcond.Broadcast()
return
}
rsize, _, _, _ := fr.stats()
rsize, _, sha1, _ := fr.stats()
if len(sha1) == 40 && r.sha1 != sha1 {
r.sha1 = sha1
}
mr := &meteredReader{r: noopResetter{fr}, size: int(rsize)}
r.smux.Lock()
r.smap[chunkID] = mr
@ -150,7 +163,12 @@ func (r *Reader) thread() {
r.smux.Unlock()
if i < int64(rsize) || err == io.ErrUnexpectedEOF {
// Probably the network connection was closed early. Retry.
blog.V(1).Infof("b2 reader %d: got %dB of %dB; retrying", chunkID, i, rsize)
blog.V(1).Infof("b2 reader %d: got %dB of %dB; retrying after %v", chunkID, i, rsize, b)
if err := b.wait(r.ctx); err != nil {
r.setErr(err)
r.rcond.Broadcast()
return
}
buf.Reset()
goto redo
}
@ -211,13 +229,13 @@ func (r *Reader) initFunc() {
r.thread()
r.chbuf <- &rchunk{}
}
r.vrfy = sha1.New()
}
func (r *Reader) Read(p []byte) (int, error) {
if err := r.getErr(); err != nil {
return 0, err
}
// TODO: check the SHA1 hash here and verify it on Close.
r.init.Do(r.initFunc)
chunk, err := r.curChunk()
if err != nil {
@ -225,6 +243,7 @@ func (r *Reader) Read(p []byte) (int, error) {
return 0, err
}
n, err := chunk.Read(p)
r.vrfy.Write(p[:n]) // Hash.Write never returns an error.
r.read += n
if err == io.EOF {
if chunk.final {
@ -256,38 +275,49 @@ func (r *Reader) status() *ReaderStatus {
return rs
}
// copied from io.Copy, basically.
func copyContext(ctx context.Context, dst io.Writer, src io.Reader) (written int64, err error) {
buf := make([]byte, 32*1024)
for {
if ctx.Err() != nil {
err = ctx.Err()
return
}
nr, er := src.Read(buf)
if nr > 0 {
nw, ew := dst.Write(buf[0:nr])
if nw > 0 {
written += int64(nw)
}
if ew != nil {
err = ew
break
}
if nr != nw {
err = io.ErrShortWrite
break
}
}
if er == io.EOF {
break
}
if er != nil {
err = er
break
}
// Verify checks the SHA1 hash on download and compares it to the SHA1 hash
// submitted on upload. If the two differ, this returns an error. If the
// correct hash could not be calculated (if, for example, the entire object was
// not read, or if the object was uploaded as a "large file" and thus the SHA1
// hash was not sent), this returns (nil, false).
func (r *Reader) Verify() (error, bool) {
got := fmt.Sprintf("%x", r.vrfy.Sum(nil))
if r.sha1 == got {
return nil, true
}
// TODO: if the exact length of the file is requested AND the checksum is
// bad, this will return (nil, false) instead of (an error, true). This is
// because there's no good way that I can tell to determine that we've hit
// the end of the file without reading off the end. Consider reading N+1
// bytes at the very end to close this hole.
if r.offset > 0 || !r.readOffEnd || len(r.sha1) != 40 {
return nil, false
}
return fmt.Errorf("bad hash: got %v, want %v", got, r.sha1), true
}
// strip a writer of any non-Write methods
type onlyWriter struct{ w io.Writer }
func (ow onlyWriter) Write(p []byte) (int, error) { return ow.w.Write(p) }
func copyContext(ctx context.Context, w io.Writer, r io.Reader) (int64, error) {
var n int64
var err error
done := make(chan struct{})
go func() {
if _, ok := w.(*Writer); ok {
w = onlyWriter{w}
}
n, err = io.Copy(w, r)
close(done)
}()
select {
case <-done:
return n, err
case <-ctx.Done():
return 0, ctx.Err()
}
return written, err
}
type noopResetter struct {
@ -295,3 +325,24 @@ type noopResetter struct {
}
func (noopResetter) Reset() error { return nil }
type backoff time.Duration
func (b *backoff) wait(ctx context.Context) error {
if *b == 0 {
*b = backoff(time.Millisecond)
}
select {
case <-time.After(time.Duration(*b)):
if time.Duration(*b) < time.Second*10 {
*b <<= 1
}
return nil
case <-ctx.Done():
return ctx.Err()
}
}
func (b backoff) String() string {
return time.Duration(b).String()
}

24
vendor/github.com/kurin/blazer/b2/writer.go generated vendored
View File

@ -476,18 +476,42 @@ func (w *Writer) Close() error {
// WithAttrs sets the writable attributes of the resulting file to given
// values. WithAttrs must be called before the first call to Write.
//
// DEPRECATED: Use WithAttrsOption instead.
func (w *Writer) WithAttrs(attrs *Attrs) *Writer {
w.contentType = attrs.ContentType
w.info = make(map[string]string)
for k, v := range attrs.Info {
w.info[k] = v
}
if len(w.info) < 10 && attrs.SHA1 != "" {
w.info["large_file_sha1"] = attrs.SHA1
}
if len(w.info) < 10 && !attrs.LastModified.IsZero() {
w.info["src_last_modified_millis"] = fmt.Sprintf("%d", attrs.LastModified.UnixNano()/1e6)
}
return w
}
// A WriterOption sets Writer-specific behavior.
type WriterOption func(*Writer)
// WithAttrs attaches the given Attrs to the writer.
func WithAttrsOption(attrs *Attrs) WriterOption {
return func(w *Writer) {
w.WithAttrs(attrs)
}
}
// DefaultWriterOptions returns a ClientOption that will apply the given
// WriterOptions to every Writer. These options can be overridden by passing
// new options to NewWriter.
func DefaultWriterOptions(opts ...WriterOption) ClientOption {
return func(c *clientOptions) {
c.writerOpts = opts
}
}
func (w *Writer) status() *WriterStatus {
w.smux.RLock()
defer w.smux.RUnlock()

126
vendor/github.com/kurin/blazer/base/base.go generated vendored
View File

@ -42,7 +42,7 @@ import (
const (
APIBase = "https://api.backblazeb2.com"
DefaultUserAgent = "blazer/0.4.4"
DefaultUserAgent = "blazer/0.5.0"
)
type b2err struct {
@ -427,7 +427,7 @@ func AuthorizeAccount(ctx context.Context, account, key string, opts ...AuthOpti
authToken: b2resp.AuthToken,
apiURI: b2resp.URI,
downloadURI: b2resp.DownloadURI,
minPartSize: b2resp.MinPartSize,
minPartSize: b2resp.PartSize,
opts: b2opts,
}, nil
}
@ -479,6 +479,14 @@ func ForceCapExceeded() AuthOption {
}
}
// SetAPIBase returns an AuthOption that uses the given URL as the base for API
// requests.
func SetAPIBase(url string) AuthOption {
return func(o *b2Options) {
o.apiBase = url
}
}
type LifecycleRule struct {
Prefix string
DaysNewUntilHidden int
@ -524,7 +532,7 @@ func (b *B2) CreateBucket(ctx context.Context, name, btype string, info map[stri
Name: name,
Info: b2resp.Info,
LifecycleRules: respRules,
id: b2resp.BucketID,
ID: b2resp.BucketID,
rev: b2resp.Revision,
b2: b,
}, nil
@ -534,7 +542,7 @@ func (b *B2) CreateBucket(ctx context.Context, name, btype string, info map[stri
func (b *Bucket) DeleteBucket(ctx context.Context) error {
b2req := &b2types.DeleteBucketRequest{
AccountID: b.b2.accountID,
BucketID: b.id,
BucketID: b.ID,
}
headers := map[string]string{
"Authorization": b.b2.authToken,
@ -548,7 +556,7 @@ type Bucket struct {
Type string
Info map[string]string
LifecycleRules []LifecycleRule
id string
ID string
rev int
b2 *B2
}
@ -565,7 +573,7 @@ func (b *Bucket) Update(ctx context.Context) (*Bucket, error) {
}
b2req := &b2types.UpdateBucketRequest{
AccountID: b.b2.accountID,
BucketID: b.id,
BucketID: b.ID,
// Name: b.Name,
Type: b.Type,
Info: b.Info,
@ -592,7 +600,7 @@ func (b *Bucket) Update(ctx context.Context) (*Bucket, error) {
Type: b2resp.Type,
Info: b2resp.Info,
LifecycleRules: respRules,
id: b2resp.BucketID,
ID: b2resp.BucketID,
b2: b.b2,
}, nil
}
@ -629,7 +637,7 @@ func (b *B2) ListBuckets(ctx context.Context) ([]*Bucket, error) {
Type: bucket.Type,
Info: bucket.Info,
LifecycleRules: rules,
id: bucket.BucketID,
ID: bucket.BucketID,
rev: bucket.Revision,
b2: b,
})
@ -660,7 +668,7 @@ func (url *URL) Reload(ctx context.Context) error {
// GetUploadURL wraps b2_get_upload_url.
func (b *Bucket) GetUploadURL(ctx context.Context) (*URL, error) {
b2req := &b2types.GetUploadURLRequest{
BucketID: b.id,
BucketID: b.ID,
}
b2resp := &b2types.GetUploadURLResponse{}
headers := map[string]string{
@ -745,7 +753,7 @@ type LargeFile struct {
// StartLargeFile wraps b2_start_large_file.
func (b *Bucket) StartLargeFile(ctx context.Context, name, contentType string, info map[string]string) (*LargeFile, error) {
b2req := &b2types.StartLargeFileRequest{
BucketID: b.id,
BucketID: b.ID,
Name: name,
ContentType: contentType,
Info: info,
@ -927,7 +935,7 @@ func (l *LargeFile) FinishLargeFile(ctx context.Context) (*File, error) {
// ListUnfinishedLargeFiles wraps b2_list_unfinished_large_files.
func (b *Bucket) ListUnfinishedLargeFiles(ctx context.Context, count int, continuation string) ([]*File, string, error) {
b2req := &b2types.ListUnfinishedLargeFilesRequest{
BucketID: b.id,
BucketID: b.ID,
Continuation: continuation,
Count: count,
}
@ -962,7 +970,7 @@ func (b *Bucket) ListFileNames(ctx context.Context, count int, continuation, pre
b2req := &b2types.ListFileNamesRequest{
Count: count,
Continuation: continuation,
BucketID: b.id,
BucketID: b.ID,
Prefix: prefix,
Delimiter: delimiter,
}
@ -1000,7 +1008,7 @@ func (b *Bucket) ListFileNames(ctx context.Context, count int, continuation, pre
// ListFileVersions wraps b2_list_file_versions.
func (b *Bucket) ListFileVersions(ctx context.Context, count int, startName, startID, prefix, delimiter string) ([]*File, string, string, error) {
b2req := &b2types.ListFileVersionsRequest{
BucketID: b.id,
BucketID: b.ID,
Count: count,
StartName: startName,
StartID: startID,
@ -1038,11 +1046,12 @@ func (b *Bucket) ListFileVersions(ctx context.Context, count int, startName, sta
}
// GetDownloadAuthorization wraps b2_get_download_authorization.
func (b *Bucket) GetDownloadAuthorization(ctx context.Context, prefix string, valid time.Duration) (string, error) {
func (b *Bucket) GetDownloadAuthorization(ctx context.Context, prefix string, valid time.Duration, contentDisposition string) (string, error) {
b2req := &b2types.GetDownloadAuthorizationRequest{
BucketID: b.id,
Prefix: prefix,
Valid: int(valid.Seconds()),
BucketID: b.ID,
Prefix: prefix,
Valid: int(valid.Seconds()),
ContentDisposition: contentDisposition,
}
b2resp := &b2types.GetDownloadAuthorizationResponse{}
headers := map[string]string{
@ -1121,9 +1130,13 @@ func (b *Bucket) DownloadFileByName(ctx context.Context, name string, offset, si
}
info[name] = val
}
sha1 := resp.Header.Get("X-Bz-Content-Sha1")
if sha1 == "none" && info["Large_file_sha1"] != "" {
sha1 = info["Large_file_sha1"]
}
return &FileReader{
ReadCloser: resp.Body,
SHA1: resp.Header.Get("X-Bz-Content-Sha1"),
SHA1: sha1,
ID: resp.Header.Get("X-Bz-File-Id"),
ContentType: resp.Header.Get("Content-Type"),
ContentLength: int(clen),
@ -1134,7 +1147,7 @@ func (b *Bucket) DownloadFileByName(ctx context.Context, name string, offset, si
// HideFile wraps b2_hide_file.
func (b *Bucket) HideFile(ctx context.Context, name string) (*File, error) {
b2req := &b2types.HideFileRequest{
BucketID: b.id,
BucketID: b.ID,
File: name,
}
b2resp := &b2types.HideFileResponse{}
@ -1190,3 +1203,78 @@ func (f *File) GetFileInfo(ctx context.Context) (*FileInfo, error) {
}
return f.Info, nil
}
// Key is a B2 application key.
type Key struct {
ID string
Secret string
Name string
Capabilities []string
Expires time.Time
b2 *B2
}
// CreateKey wraps b2_create_key.
func (b *B2) CreateKey(ctx context.Context, name string, caps []string, valid time.Duration, bucketID string, prefix string) (*Key, error) {
b2req := &b2types.CreateKeyRequest{
AccountID: b.accountID,
Capabilities: caps,
Name: name,
Valid: int(valid.Seconds()),
BucketID: bucketID,
Prefix: prefix,
}
b2resp := &b2types.CreateKeyResponse{}
headers := map[string]string{
"Authorization": b.authToken,
}
if err := b.opts.makeRequest(ctx, "b2_create_key", "POST", b.apiURI+b2types.V1api+"b2_create_key", b2req, b2resp, headers, nil); err != nil {
return nil, err
}
return &Key{
Name: b2resp.Name,
ID: b2resp.ID,
Secret: b2resp.Secret,
Capabilities: b2resp.Capabilities,
Expires: millitime(b2resp.Expires),
b2: b,
}, nil
}
// Delete wraps b2_delete_key.
func (k *Key) Delete(ctx context.Context) error {
b2req := &b2types.DeleteKeyRequest{
KeyID: k.ID,
}
headers := map[string]string{
"Authorization": k.b2.authToken,
}
return k.b2.opts.makeRequest(ctx, "b2_delete_key", "POST", k.b2.apiURI+b2types.V1api+"b2_delete_key", b2req, nil, headers, nil)
}
// ListKeys wraps b2_list_keys.
func (b *B2) ListKeys(ctx context.Context, max int, next string) ([]*Key, string, error) {
b2req := &b2types.ListKeysRequest{
AccountID: b.accountID,
Max: max,
Next: next,
}
headers := map[string]string{
"Authorization": b.authToken,
}
b2resp := &b2types.ListKeysResponse{}
if err := b.opts.makeRequest(ctx, "b2_create_key", "POST", b.apiURI+b2types.V1api+"b2_create_key", b2req, b2resp, headers, nil); err != nil {
return nil, "", err
}
var keys []*Key
for _, key := range b2resp.Keys {
keys = append(keys, &Key{
Name: key.Name,
ID: key.ID,
Capabilities: key.Capabilities,
Expires: millitime(key.Expires),
b2: b,
})
}
return keys, b2resp.Next, nil
}

5
vendor/github.com/kurin/blazer/base/integration_test.go generated vendored
View File

@ -265,7 +265,7 @@ func TestStorage(t *testing.T) {
}
// b2_get_download_authorization
if _, err := bucket.GetDownloadAuthorization(ctx, "foo/", 24*time.Hour); err != nil {
if _, err := bucket.GetDownloadAuthorization(ctx, "foo/", 24*time.Hour, "attachment"); err != nil {
t.Errorf("failed to get download auth token: %v", err)
}
}
@ -280,7 +280,7 @@ func TestUploadAuthAfterConnectionHang(t *testing.T) {
hung := make(chan struct{})
// An http.RoundTripper that dies after sending ~10k bytes.
// An http.RoundTripper that dies and hangs after sending ~10k bytes.
hang := func() {
close(hung)
select {}
@ -317,7 +317,6 @@ func TestUploadAuthAfterConnectionHang(t *testing.T) {
go func() {
ue.UploadFile(ctx, buf, buf.Len(), smallFileName, "application/octet-stream", smallSHA1, nil)
t.Fatal("this ought not to be reachable")
}()
<-hung

98
vendor/github.com/kurin/blazer/bin/b2keys/b2keys.go generated vendored Normal file
View File

@ -0,0 +1,98 @@
// b2keys is a small utility for managing Backblaze B2 keys.
package main
import (
"context"
"flag"
"fmt"
"os"
"time"
"github.com/google/subcommands"
"github.com/kurin/blazer/b2"
)
const (
apiID = "B2_ACCOUNT_ID"
apiKey = "B2_SECRET_KEY"
)
func main() {
subcommands.Register(&create{}, "")
flag.Parse()
ctx := context.Background()
os.Exit(int(subcommands.Execute(ctx)))
}
type create struct {
d *time.Duration
bucket *string
pfx *string
}
func (c *create) Name() string { return "create" }
func (c *create) Synopsis() string { return "create a new application key" }
func (c *create) Usage() string {
return "b2keys create [-bucket bucket] [-duration duration] [-prefix pfx] name capability [capability ...]"
}
func (c *create) SetFlags(fs *flag.FlagSet) {
c.d = fs.Duration("duration", 0, "the lifetime of the new key")
c.bucket = fs.String("bucket", "", "limit the key to the given bucket")
c.pfx = fs.String("prefix", "", "limit the key to the objects starting with prefix")
}
func (c *create) Execute(ctx context.Context, f *flag.FlagSet, _ ...interface{}) subcommands.ExitStatus {
id := os.Getenv(apiID)
key := os.Getenv(apiKey)
if id == "" || key == "" {
fmt.Fprintf(os.Stderr, "both %s and %s must be set in the environment", apiID, apiKey)
return subcommands.ExitUsageError
}
args := f.Args()
if len(args) < 2 {
fmt.Fprintf(os.Stderr, "%s\n", c.Usage())
return subcommands.ExitUsageError
}
name := args[0]
caps := args[1:]
var opts []b2.KeyOption
if *c.d > 0 {
opts = append(opts, b2.Lifetime(*c.d))
}
if *c.pfx != "" {
opts = append(opts, b2.Prefix(*c.pfx))
}
for _, c := range caps {
opts = append(opts, b2.Capability(c))
}
client, err := b2.NewClient(ctx, id, key, b2.UserAgent("b2keys"))
if err != nil {
fmt.Fprintf(os.Stderr, "%v\n", err)
return subcommands.ExitFailure
}
var cr creater = client
if *c.bucket != "" {
bucket, err := client.Bucket(ctx, *c.bucket)
if err != nil {
fmt.Fprintf(os.Stderr, "%v\n", err)
return subcommands.ExitFailure
}
cr = bucket
}
if _, err := cr.CreateKey(ctx, name, opts...); err != nil {
fmt.Fprintf(os.Stderr, "%v\n", err)
return subcommands.ExitFailure
}
return subcommands.ExitSuccess
}
type creater interface {
CreateKey(context.Context, string, ...b2.KeyOption) (*b2.Key, error)
}

43
vendor/github.com/kurin/blazer/bin/bonfire/bonfire.go generated vendored Normal file
View File

@ -0,0 +1,43 @@
package main
import (
"context"
"fmt"
"net/http"
"github.com/kurin/blazer/bonfire"
"github.com/kurin/blazer/internal/pyre"
)
type superManager struct {
*bonfire.LocalBucket
bonfire.FS
}
func main() {
ctx := context.Background()
mux := http.NewServeMux()
fs := bonfire.FS("/tmp/b2")
bm := &bonfire.LocalBucket{Port: 8822}
if err := pyre.RegisterServerOnMux(ctx, &pyre.Server{
Account: bonfire.Localhost(8822),
LargeFile: fs,
Bucket: bm,
}, mux); err != nil {
fmt.Println(err)
return
}
sm := superManager{
LocalBucket: bm,
FS: fs,
}
pyre.RegisterLargeFileManagerOnMux(fs, mux)
pyre.RegisterSimpleFileManagerOnMux(fs, mux)
pyre.RegisterDownloadManagerOnMux(sm, mux)
fmt.Println("ok")
fmt.Println(http.ListenAndServe("localhost:8822", mux))
}

257
vendor/github.com/kurin/blazer/bonfire/bonfire.go generated vendored Normal file
View File

@ -0,0 +1,257 @@
// Copyright 2018, Google
//
// 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 bonfire implements the B2 service.
package bonfire
import (
"crypto/sha1"
"encoding/json"
"errors"
"fmt"
"io"
"os"
"path/filepath"
"sort"
"strconv"
"sync"
"github.com/kurin/blazer/internal/pyre"
)
type FS string
func (f FS) open(fp string) (io.WriteCloser, error) {
if err := os.MkdirAll(filepath.Dir(fp), 0755); err != nil {
return nil, err
}
return os.Create(fp)
}
func (f FS) PartWriter(id string, part int) (io.WriteCloser, error) {
fp := filepath.Join(string(f), id, fmt.Sprintf("%d", part))
return f.open(fp)
}
func (f FS) Writer(bucket, name, id string) (io.WriteCloser, error) {
fp := filepath.Join(string(f), bucket, name, id)
return f.open(fp)
}
func (f FS) Parts(id string) ([]string, error) {
dir := filepath.Join(string(f), id)
file, err := os.Open(dir)
if err != nil {
return nil, err
}
defer file.Close()
fs, err := file.Readdir(0)
if err != nil {
return nil, err
}
shas := make([]string, len(fs)-1)
for _, fi := range fs {
if fi.Name() == "info" {
continue
}
i, err := strconv.ParseInt(fi.Name(), 10, 32)
if err != nil {
return nil, err
}
p, err := os.Open(filepath.Join(dir, fi.Name()))
if err != nil {
return nil, err
}
sha := sha1.New()
if _, err := io.Copy(sha, p); err != nil {
p.Close()
return nil, err
}
p.Close()
shas[int(i)-1] = fmt.Sprintf("%x", sha.Sum(nil))
}
return shas, nil
}
type fi struct {
Name string
Bucket string
}
func (f FS) Start(bucketId, fileName, fileId string, bs []byte) error {
w, err := f.open(filepath.Join(string(f), fileId, "info"))
if err != nil {
return err
}
if err := json.NewEncoder(w).Encode(fi{Name: fileName, Bucket: bucketId}); err != nil {
w.Close()
return err
}
return w.Close()
}
func (f FS) Finish(fileId string) error {
r, err := os.Open(filepath.Join(string(f), fileId, "info"))
if err != nil {
return err
}
defer r.Close()
var info fi
if err := json.NewDecoder(r).Decode(&info); err != nil {
return err
}
shas, err := f.Parts(fileId) // oh my god this is terrible
if err != nil {
return err
}
w, err := f.open(filepath.Join(string(f), info.Bucket, info.Name, fileId))
if err != nil {
return err
}
for i := 1; i <= len(shas); i++ {
r, err := os.Open(filepath.Join(string(f), fileId, fmt.Sprintf("%d", i)))
if err != nil {
w.Close()
return err
}
if _, err := io.Copy(w, r); err != nil {
w.Close()
r.Close()
return err
}
r.Close()
}
if err := w.Close(); err != nil {
return err
}
return os.RemoveAll(filepath.Join(string(f), fileId))
}
func (f FS) ObjectByName(bucket, name string) (pyre.DownloadableObject, error) {
dir := filepath.Join(string(f), bucket, name)
d, err := os.Open(dir)
if err != nil {
return nil, err
}
defer d.Close()
fis, err := d.Readdir(0)
if err != nil {
return nil, err
}
sort.Slice(fis, func(i, j int) bool { return fis[i].ModTime().Before(fis[j].ModTime()) })
o, err := os.Open(filepath.Join(dir, fis[0].Name()))
if err != nil {
return nil, err
}
return do{
o: o,
size: fis[0].Size(),
}, nil
}
type do struct {
size int64
o *os.File
}
func (d do) Size() int64 { return d.size }
func (d do) Reader() io.ReaderAt { return d.o }
func (d do) Close() error { return d.o.Close() }
func (f FS) Get(fileId string) ([]byte, error) { return nil, nil }
type Localhost int
func (l Localhost) String() string { return fmt.Sprintf("http://localhost:%d", l) }
func (l Localhost) UploadHost(id string) (string, error) { return l.String(), nil }
func (Localhost) Authorize(string, string) (string, error) { return "ok", nil }
func (Localhost) CheckCreds(string, string) error { return nil }
func (l Localhost) APIRoot(string) string { return l.String() }
func (l Localhost) DownloadRoot(string) string { return l.String() }
func (Localhost) Sizes(string) (int32, int32) { return 1e5, 1 }
func (l Localhost) UploadPartHost(fileId string) (string, error) { return l.String(), nil }
type LocalBucket struct {
Port int
mux sync.Mutex
b map[string][]byte
nti map[string]string
}
func (lb *LocalBucket) AddBucket(id, name string, bs []byte) error {
lb.mux.Lock()
defer lb.mux.Unlock()
if lb.b == nil {
lb.b = make(map[string][]byte)
}
if lb.nti == nil {
lb.nti = make(map[string]string)
}
lb.b[id] = bs
lb.nti[name] = id
return nil
}
func (lb *LocalBucket) RemoveBucket(id string) error {
lb.mux.Lock()
defer lb.mux.Unlock()
if lb.b == nil {
lb.b = make(map[string][]byte)
}
delete(lb.b, id)
return nil
}
func (lb *LocalBucket) UpdateBucket(id string, rev int, bs []byte) error {
return errors.New("no")
}
func (lb *LocalBucket) ListBuckets(acct string) ([][]byte, error) {
lb.mux.Lock()
defer lb.mux.Unlock()
var bss [][]byte
for _, bs := range lb.b {
bss = append(bss, bs)
}
return bss, nil
}
func (lb *LocalBucket) GetBucket(id string) ([]byte, error) {
lb.mux.Lock()
defer lb.mux.Unlock()
bs, ok := lb.b[id]
if !ok {
return nil, errors.New("not found")
}
return bs, nil
}
func (lb *LocalBucket) GetBucketID(name string) (string, error) {
lb.mux.Lock()
defer lb.mux.Unlock()
id, ok := lb.nti[name]
if !ok {
return "", errors.New("not found")
}
return id, nil
}

94
vendor/github.com/kurin/blazer/internal/b2types/b2types.go generated vendored
View File

@ -29,11 +29,14 @@ type ErrorMessage struct {
}
type AuthorizeAccountResponse struct {
AccountID string `json:"accountId"`
AuthToken string `json:"authorizationToken"`
URI string `json:"apiUrl"`
DownloadURI string `json:"downloadUrl"`
MinPartSize int `json:"minimumPartSize"`
AccountID string `json:"accountId"`
AuthToken string `json:"authorizationToken"`
URI string `json:"apiUrl"`
DownloadURI string `json:"downloadUrl"`
MinPartSize int `json:"minimumPartSize"`
PartSize int `json:"recommendedPartSize"`
AbsMinPartSize int `json:"absoluteMinimumPartSize"`
Capabilities []string `json:"capabilities"`
}
type LifecycleRule struct {
@ -73,15 +76,8 @@ type ListBucketsResponse struct {
}
type UpdateBucketRequest struct {
AccountID string `json:"accountId"`
BucketID string `json:"bucketId"`
// bucketName is a required field according to
// https://www.backblaze.com/b2/docs/b2_update_bucket.html.
//
// However, actually setting it returns 400: unknown field in
// com.backblaze.modules.b2.data.UpdateBucketRequest: bucketName
//
//Name string `json:"bucketName"`
AccountID string `json:"accountId"`
BucketID string `json:"bucketId"`
Type string `json:"bucketType,omitempty"`
Info map[string]string `json:"bucketInfo,omitempty"`
LifecycleRules []LifecycleRule `json:"lifecycleRules,omitempty"`
@ -99,11 +95,7 @@ type GetUploadURLResponse struct {
Token string `json:"authorizationToken"`
}
type UploadFileResponse struct {
FileID string `json:"fileId"`
Timestamp int64 `json:"uploadTimestamp"`
Action string `json:"action"`
}
type UploadFileResponse GetFileInfoResponse
type DeleteFileVersionRequest struct {
Name string `json:"fileName"`
@ -206,20 +198,23 @@ type GetFileInfoRequest struct {
}
type GetFileInfoResponse struct {
FileID string `json:"fileId"`
Name string `json:"fileName"`
SHA1 string `json:"contentSha1"`
Size int64 `json:"contentLength"`
ContentType string `json:"contentType"`
Info map[string]string `json:"fileInfo"`
Action string `json:"action"`
Timestamp int64 `json:"uploadTimestamp"`
FileID string `json:"fileId,omitempty"`
Name string `json:"fileName,omitempty"`
AccountID string `json:"accountId,omitempty"`
BucketID string `json:"bucketId,omitempty"`
Size int64 `json:"contentLength,omitempty"`
SHA1 string `json:"contentSha1,omitempty"`
ContentType string `json:"contentType,omitempty"`
Info map[string]string `json:"fileInfo,omitempty"`
Action string `json:"action,omitempty"`
Timestamp int64 `json:"uploadTimestamp,omitempty"`
}
type GetDownloadAuthorizationRequest struct {
BucketID string `json:"bucketId"`
Prefix string `json:"fileNamePrefix"`
Valid int `json:"validDurationInSeconds"`
BucketID string `json:"bucketId"`
Prefix string `json:"fileNamePrefix"`
Valid int `json:"validDurationInSeconds"`
ContentDisposition string `json:"b2ContentDisposition,omitempty"`
}
type GetDownloadAuthorizationResponse struct {
@ -238,3 +233,42 @@ type ListUnfinishedLargeFilesResponse struct {
Files []GetFileInfoResponse `json:"files"`
Continuation string `json:"nextFileId"`
}
type CreateKeyRequest struct {
AccountID string `json:"accountId"`
Capabilities []string `json:"capabilities"`
Name string `json:"keyName"`
Valid int `json:"validDurationInSeconds,omitempty"`
BucketID string `json:"bucketId,omitempty"`
Prefix string `json:"namePrefix,omitempty"`
}
type Key struct {
ID string `json:"applicationKeyId"`
Secret string `json:"applicationKey"`
AccountID string `json:"accountId"`
Capabilities []string `json:"capabilities"`
Name string `json:"keyName"`
Expires int64 `json:"expirationTimestamp"`
BucketID string `json:"bucketId"`
Prefix string `json:"namePrefix"`
}
type CreateKeyResponse Key
type DeleteKeyRequest struct {
KeyID string `json:"applicationKeyId"`
}
type DeleteKeyResponse Key
type ListKeysRequest struct {
AccountID string `json:"accountId"`
Max int `json:"maxKeyCount,omitempty"`
Next string `json:"startApplicationKeyId,omitempty"`
}
type ListKeysResponse struct {
Keys []Key `json:"keys"`
Next string `json:"nextApplicationKeyId"`
}

325
vendor/github.com/kurin/blazer/internal/pyre/api.go generated vendored Normal file
View File

@ -0,0 +1,325 @@
// Copyright 2018, Google
//
// 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 pyre
import (
"context"
"encoding/base64"
"errors"
"fmt"
"net"
"net/http"
"os"
"reflect"
"strings"
"github.com/golang/protobuf/proto"
"github.com/google/uuid"
"github.com/grpc-ecosystem/grpc-gateway/runtime"
"google.golang.org/grpc"
"google.golang.org/grpc/metadata"
pb "github.com/kurin/blazer/internal/pyre/proto"
)
type apiErr struct {
Status int `json:"status"`
Code string `json:"code"`
Message string `json:"message"`
}
func serveMuxOptions() []runtime.ServeMuxOption {
return []runtime.ServeMuxOption{
runtime.WithMarshalerOption("*", &runtime.JSONPb{}),
runtime.WithProtoErrorHandler(func(ctx context.Context, mux *runtime.ServeMux, m runtime.Marshaler, rw http.ResponseWriter, req *http.Request, err error) {
aErr := apiErr{
Status: 400,
Code: "uh oh",
Message: err.Error(),
}
rw.WriteHeader(aErr.Status)
if err := m.NewEncoder(rw).Encode(aErr); err != nil {
fmt.Fprintln(os.Stdout, err)
}
}),
}
}
func getAuth(ctx context.Context) (string, error) {
md, ok := metadata.FromIncomingContext(ctx)
if !ok {
return "", errors.New("no metadata")
}
data := md.Get("authorization")
if len(data) == 0 {
return "", nil
}
return data[0], nil
}
func RegisterServerOnMux(ctx context.Context, srv *Server, mux *http.ServeMux) error {
rmux := runtime.NewServeMux(serveMuxOptions()...)
l, err := net.Listen("tcp", "localhost:0")
if err != nil {
return err
}
gsrv := grpc.NewServer()
if err := pb.RegisterPyreServiceHandlerFromEndpoint(ctx, rmux, l.Addr().String(), []grpc.DialOption{grpc.WithInsecure()}); err != nil {
return err
}
pb.RegisterPyreServiceServer(gsrv, srv)
mux.Handle("/b2api/v1/", rmux)
go gsrv.Serve(l)
go func() {
<-ctx.Done()
gsrv.GracefulStop()
}()
return nil
}
type AccountManager interface {
Authorize(acct, key string) (string, error)
CheckCreds(token, api string) error
APIRoot(acct string) string
DownloadRoot(acct string) string
UploadPartHost(fileID string) (string, error)
UploadHost(id string) (string, error)
Sizes(acct string) (recommended, minimum int32)
}
type BucketManager interface {
AddBucket(id, name string, bs []byte) error
RemoveBucket(id string) error
UpdateBucket(id string, rev int, bs []byte) error
ListBuckets(acct string) ([][]byte, error)
GetBucket(id string) ([]byte, error)
}
type LargeFileOrganizer interface {
Start(bucketID, fileName, fileID string, bs []byte) error
Get(fileID string) ([]byte, error)
Parts(fileID string) ([]string, error)
Finish(fileID string) error
}
type Server struct {
Account AccountManager
Bucket BucketManager
LargeFile LargeFileOrganizer
List ListManager
}
func (s *Server) AuthorizeAccount(ctx context.Context, req *pb.AuthorizeAccountRequest) (*pb.AuthorizeAccountResponse, error) {
auth, err := getAuth(ctx)
if err != nil {
return nil, err
}
if !strings.HasPrefix(auth, "Basic ") {
return nil, errors.New("basic auth required")
}
auth = strings.TrimPrefix(auth, "Basic ")
bs, err := base64.StdEncoding.DecodeString(auth)
if err != nil {
return nil, err
}
split := strings.Split(string(bs), ":")
if len(split) != 2 {
return nil, errors.New("bad auth")
}
acct, key := split[0], split[1]
token, err := s.Account.Authorize(acct, key)
if err != nil {
return nil, err
}
rec, min := s.Account.Sizes(acct)
return &pb.AuthorizeAccountResponse{
AuthorizationToken: token,
ApiUrl: s.Account.APIRoot(acct),
DownloadUrl: s.Account.DownloadRoot(acct),
RecommendedPartSize: rec,
MinimumPartSize: rec,
AbsoluteMinimumPartSize: min,
}, nil
}
func (s *Server) ListBuckets(ctx context.Context, req *pb.ListBucketsRequest) (*pb.ListBucketsResponse, error) {
resp := &pb.ListBucketsResponse{}
buckets, err := s.Bucket.ListBuckets(req.AccountId)
if err != nil {
return nil, err
}
for _, bs := range buckets {
var bucket pb.Bucket
if err := proto.Unmarshal(bs, &bucket); err != nil {
return nil, err
}
resp.Buckets = append(resp.Buckets, &bucket)
}
return resp, nil
}
func (s *Server) CreateBucket(ctx context.Context, req *pb.Bucket) (*pb.Bucket, error) {
req.BucketId = uuid.New().String()
bs, err := proto.Marshal(req)
if err != nil {
return nil, err
}
if err := s.Bucket.AddBucket(req.BucketId, req.BucketName, bs); err != nil {
return nil, err
}
return req, nil
}
func (s *Server) DeleteBucket(ctx context.Context, req *pb.Bucket) (*pb.Bucket, error) {
bs, err := s.Bucket.GetBucket(req.BucketId)
if err != nil {
return nil, err
}
var bucket pb.Bucket
if err := proto.Unmarshal(bs, &bucket); err != nil {
return nil, err
}
if err := s.Bucket.RemoveBucket(req.BucketId); err != nil {
return nil, err
}
return &bucket, nil
}
func (s *Server) GetUploadUrl(ctx context.Context, req *pb.GetUploadUrlRequest) (*pb.GetUploadUrlResponse, error) {
host, err := s.Account.UploadHost(req.BucketId)
if err != nil {
return nil, err
}
return &pb.GetUploadUrlResponse{
UploadUrl: fmt.Sprintf("%s/b2api/v1/b2_upload_file/%s", host, req.BucketId),
BucketId: req.BucketId,
}, nil
}
func (s *Server) StartLargeFile(ctx context.Context, req *pb.StartLargeFileRequest) (*pb.StartLargeFileResponse, error) {
fileID := uuid.New().String()
resp := &pb.StartLargeFileResponse{
FileId: fileID,
FileName: req.FileName,
BucketId: req.BucketId,
ContentType: req.ContentType,
FileInfo: req.FileInfo,
}
bs, err := proto.Marshal(resp)
if err != nil {
return nil, err
}
if err := s.LargeFile.Start(req.BucketId, req.FileName, fileID, bs); err != nil {
return nil, err
}
return resp, nil
}
func (s *Server) GetUploadPartUrl(ctx context.Context, req *pb.GetUploadPartUrlRequest) (*pb.GetUploadPartUrlResponse, error) {
host, err := s.Account.UploadPartHost(req.FileId)
if err != nil {
return nil, err
}
return &pb.GetUploadPartUrlResponse{
UploadUrl: fmt.Sprintf("%s/b2api/v1/b2_upload_part/%s", host, req.FileId),
}, nil
}
func (s *Server) FinishLargeFile(ctx context.Context, req *pb.FinishLargeFileRequest) (*pb.FinishLargeFileResponse, error) {
parts, err := s.LargeFile.Parts(req.FileId)
if err != nil {
return nil, err
}
if !reflect.DeepEqual(parts, req.PartSha1Array) {
return nil, errors.New("sha1 array mismatch")
}
if err := s.LargeFile.Finish(req.FileId); err != nil {
return nil, err
}
return &pb.FinishLargeFileResponse{}, nil
}
func (s *Server) ListFileVersions(ctx context.Context, req *pb.ListFileVersionsRequest) (*pb.ListFileVersionsResponse, error) {
return nil, nil
}
//type objTuple struct {
// name, version string
//}
type ListManager interface {
// NextN returns the next n objects, sorted by lexicographical order by name,
// beginning at and including, if it exists, fileName. If withPrefix is not
// empty, it only returns names that begin with that prefix. If skipPrefix
// is not empty, then the no files with that prefix are returned. If the two
// conflict, skipPrefix wins (i.e., do not return the entry).
//
// If fewer than n entries are returned, this signifies that no more names
// exist that meet these criteria.
NextN(bucketID, fileName, withPrefix, skipPrefix string, n int) ([]VersionedObject, error)
}
type VersionedObject interface {
Name() string
NextNVersions(begin string, n int) ([]string, error)
}
//func getNextObjects(lm ListManager, bucket, name, prefix, delimiter string, n int) ([]VersionedObject, error) {
// if delimiter == "" {
// return lm.NextN(bucket, name, prefix, "", n)
// }
// afterPfx := strings.TrimPrefix(name, prefix)
// i := strings.Index(afterPfx, delimiter)
// if i == 0 {
//
// }
// if i < 0 {
// return lm.NextN(bucket, name, prefix, "", n)
// }
// skipPfx := name[:len(prefix)+i]
// // TO
//}
//
//func listFileVersions(lm ListManager, bucket, name, version, prefix, delimiter string, n int) ([]objTuple, error) {
// var tups []objTuple
// var got int
// for {
// objs, err := getNextObjects(bucket, name, prefix, delimiter, n-got)
// if err != nil {
// return nil, err
// }
// if len(objs) == 0 {
// break
// }
// for _, o := range objs {
// var begin string
// if len(tups) == 0 {
// begin = version
// }
// vers, err := lm.NextNVersions(begin, n-got)
// if err != nil {
// return nil, err
// }
// got += len(vers)
// for _, ver := range vers {
// tups = append(tups, objTuple{name: o.Name(), version: ver})
// }
// if got >= n {
// return tups[:n], nil
// }
// }
// }
// return tups, nil
//}

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vendor/github.com/kurin/blazer/internal/pyre/download.go generated vendored Normal file
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// Copyright 2018, Google
//
// 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 pyre
import (
"fmt"
"io"
"net/http"
"strconv"
"strings"
)
type DownloadableObject interface {
Size() int64
Reader() io.ReaderAt
io.Closer
}
type DownloadManager interface {
ObjectByName(bucketID, name string) (DownloadableObject, error)
GetBucketID(bucket string) (string, error)
GetBucket(id string) ([]byte, error)
}
type downloadServer struct {
dm DownloadManager
}
type downloadRequest struct {
off, n int64
}
func parseDownloadHeaders(r *http.Request) (*downloadRequest, error) {
rang := r.Header.Get("Range")
if rang == "" {
return &downloadRequest{}, nil
}
if !strings.HasPrefix(rang, "bytes=") {
return nil, fmt.Errorf("unknown range format: %q", rang)
}
rang = strings.TrimPrefix(rang, "bytes=")
if !strings.Contains(rang, "-") {
return nil, fmt.Errorf("unknown range format: %q", rang)
}
parts := strings.Split(rang, "-")
off, err := strconv.ParseInt(parts[0], 10, 64)
if err != nil {
return nil, err
}
end, err := strconv.ParseInt(parts[1], 10, 64)
if err != nil {
return nil, err
}
return &downloadRequest{
off: off,
n: (end + 1) - off,
}, nil
}
func (fs *downloadServer) serveWholeObject(rw http.ResponseWriter, obj DownloadableObject) {
rw.Header().Set("Content-Length", fmt.Sprintf("%d", obj.Size()))
sr := io.NewSectionReader(obj.Reader(), 0, obj.Size())
if _, err := io.Copy(rw, sr); err != nil {
http.Error(rw, err.Error(), 503)
fmt.Println("no reader", err)
}
}
func (fs *downloadServer) servePartialObject(rw http.ResponseWriter, obj DownloadableObject, off, len int64) {
if off >= obj.Size() {
http.Error(rw, "hell naw", 416)
fmt.Printf("range not good (%d-%d for %d)\n", off, len, obj.Size())
return
}
if off+len > obj.Size() {
len = obj.Size() - off
}
sr := io.NewSectionReader(obj.Reader(), off, len)
rw.Header().Set("Content-Length", fmt.Sprintf("%d", len))
rw.WriteHeader(206) // this goes after headers are set
if _, err := io.Copy(rw, sr); err != nil {
fmt.Println("bad read:", err)
}
}
func (fs *downloadServer) ServeHTTP(rw http.ResponseWriter, r *http.Request) {
req, err := parseDownloadHeaders(r)
if err != nil {
http.Error(rw, err.Error(), 503)
fmt.Println("weird header")
return
}
path := strings.TrimPrefix(r.URL.Path, "/")
parts := strings.Split(path, "/")
if len(parts) < 3 {
http.Error(rw, err.Error(), 404)
fmt.Println("weird file")
return
}
bucket := parts[1]
bid, err := fs.dm.GetBucketID(bucket)
if err != nil {
http.Error(rw, err.Error(), 503)
fmt.Println("no bucket:", err)
return
}
file := strings.Join(parts[2:], "/")
obj, err := fs.dm.ObjectByName(bid, file)
if err != nil {
http.Error(rw, err.Error(), 503)
fmt.Println("no reader", err)
return
}
defer obj.Close()
if req.off == 0 && req.n == 0 {
fs.serveWholeObject(rw, obj)
return
}
fs.servePartialObject(rw, obj, req.off, req.n)
}
func RegisterDownloadManagerOnMux(d DownloadManager, mux *http.ServeMux) {
mux.Handle("/file/", &downloadServer{dm: d})
}

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// Copyright 2018, Google
//
// 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 pyre
import (
"encoding/json"
"fmt"
"io"
"net/http"
"strconv"
"strings"
)
const uploadFilePartPrefix = "/b2api/v1/b2_upload_part/"
type LargeFileManager interface {
PartWriter(id string, part int) (io.WriteCloser, error)
}
type largeFileServer struct {
fm LargeFileManager
}
type uploadPartRequest struct {
ID string `json:"fileId"`
Part int `json:"partNumber"`
Size int64 `json:"contentLength"`
Hash string `json:"contentSha1"`
}
func parseUploadPartHeaders(r *http.Request) (uploadPartRequest, error) {
var ur uploadPartRequest
ur.Hash = r.Header.Get("X-Bz-Content-Sha1")
part, err := strconv.ParseInt(r.Header.Get("X-Bz-Part-Number"), 10, 64)
if err != nil {
return ur, err
}
ur.Part = int(part)
size, err := strconv.ParseInt(r.Header.Get("Content-Length"), 10, 64)
if err != nil {
return ur, err
}
ur.Size = size
ur.ID = strings.TrimPrefix(r.URL.Path, uploadFilePartPrefix)
return ur, nil
}
func (fs *largeFileServer) ServeHTTP(rw http.ResponseWriter, r *http.Request) {
req, err := parseUploadPartHeaders(r)
if err != nil {
http.Error(rw, err.Error(), 500)
fmt.Println("oh no")
return
}
w, err := fs.fm.PartWriter(req.ID, req.Part)
if err != nil {
http.Error(rw, err.Error(), 500)
fmt.Println("oh no")
return
}
if _, err := io.Copy(w, io.LimitReader(r.Body, req.Size)); err != nil {
w.Close()
http.Error(rw, err.Error(), 500)
fmt.Println("oh no")
return
}
if err := w.Close(); err != nil {
http.Error(rw, err.Error(), 500)
fmt.Println("oh no")
return
}
if err := json.NewEncoder(rw).Encode(req); err != nil {
fmt.Println("oh no")
}
}
func RegisterLargeFileManagerOnMux(f LargeFileManager, mux *http.ServeMux) {
mux.Handle(uploadFilePartPrefix, &largeFileServer{fm: f})
}

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// Code generated by protoc-gen-grpc-gateway. DO NOT EDIT.
// source: proto/pyre.proto
/*
Package pyre_proto is a reverse proxy.
It translates gRPC into RESTful JSON APIs.
*/
package pyre_proto
import (
"io"
"net/http"
"github.com/golang/protobuf/proto"
"github.com/grpc-ecosystem/grpc-gateway/runtime"
"github.com/grpc-ecosystem/grpc-gateway/utilities"
"golang.org/x/net/context"
"google.golang.org/grpc"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/grpclog"
"google.golang.org/grpc/status"
)
var _ codes.Code
var _ io.Reader
var _ status.Status
var _ = runtime.String
var _ = utilities.NewDoubleArray
func request_PyreService_AuthorizeAccount_0(ctx context.Context, marshaler runtime.Marshaler, client PyreServiceClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
var protoReq AuthorizeAccountRequest
var metadata runtime.ServerMetadata
msg, err := client.AuthorizeAccount(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
return msg, metadata, err
}
func request_PyreService_ListBuckets_0(ctx context.Context, marshaler runtime.Marshaler, client PyreServiceClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
var protoReq ListBucketsRequest
var metadata runtime.ServerMetadata
if err := marshaler.NewDecoder(req.Body).Decode(&protoReq); err != nil && err != io.EOF {
return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
}
msg, err := client.ListBuckets(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
return msg, metadata, err
}
func request_PyreService_CreateBucket_0(ctx context.Context, marshaler runtime.Marshaler, client PyreServiceClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
var protoReq Bucket
var metadata runtime.ServerMetadata
if err := marshaler.NewDecoder(req.Body).Decode(&protoReq); err != nil && err != io.EOF {
return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
}
msg, err := client.CreateBucket(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
return msg, metadata, err
}
func request_PyreService_DeleteBucket_0(ctx context.Context, marshaler runtime.Marshaler, client PyreServiceClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
var protoReq Bucket
var metadata runtime.ServerMetadata
if err := marshaler.NewDecoder(req.Body).Decode(&protoReq); err != nil && err != io.EOF {
return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
}
msg, err := client.DeleteBucket(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
return msg, metadata, err
}
func request_PyreService_GetUploadUrl_0(ctx context.Context, marshaler runtime.Marshaler, client PyreServiceClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
var protoReq GetUploadUrlRequest
var metadata runtime.ServerMetadata
if err := marshaler.NewDecoder(req.Body).Decode(&protoReq); err != nil && err != io.EOF {
return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
}
msg, err := client.GetUploadUrl(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
return msg, metadata, err
}
func request_PyreService_StartLargeFile_0(ctx context.Context, marshaler runtime.Marshaler, client PyreServiceClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
var protoReq StartLargeFileRequest
var metadata runtime.ServerMetadata
if err := marshaler.NewDecoder(req.Body).Decode(&protoReq); err != nil && err != io.EOF {
return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
}
msg, err := client.StartLargeFile(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
return msg, metadata, err
}
func request_PyreService_GetUploadPartUrl_0(ctx context.Context, marshaler runtime.Marshaler, client PyreServiceClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
var protoReq GetUploadPartUrlRequest
var metadata runtime.ServerMetadata
if err := marshaler.NewDecoder(req.Body).Decode(&protoReq); err != nil && err != io.EOF {
return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
}
msg, err := client.GetUploadPartUrl(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
return msg, metadata, err
}
func request_PyreService_FinishLargeFile_0(ctx context.Context, marshaler runtime.Marshaler, client PyreServiceClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
var protoReq FinishLargeFileRequest
var metadata runtime.ServerMetadata
if err := marshaler.NewDecoder(req.Body).Decode(&protoReq); err != nil && err != io.EOF {
return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
}
msg, err := client.FinishLargeFile(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
return msg, metadata, err
}
func request_PyreService_ListFileVersions_0(ctx context.Context, marshaler runtime.Marshaler, client PyreServiceClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
var protoReq ListFileVersionsRequest
var metadata runtime.ServerMetadata
if err := marshaler.NewDecoder(req.Body).Decode(&protoReq); err != nil && err != io.EOF {
return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
}
msg, err := client.ListFileVersions(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
return msg, metadata, err
}
// RegisterPyreServiceHandlerFromEndpoint is same as RegisterPyreServiceHandler but
// automatically dials to "endpoint" and closes the connection when "ctx" gets done.
func RegisterPyreServiceHandlerFromEndpoint(ctx context.Context, mux *runtime.ServeMux, endpoint string, opts []grpc.DialOption) (err error) {
conn, err := grpc.Dial(endpoint, opts...)
if err != nil {
return err
}
defer func() {
if err != nil {
if cerr := conn.Close(); cerr != nil {
grpclog.Infof("Failed to close conn to %s: %v", endpoint, cerr)
}
return
}
go func() {
<-ctx.Done()
if cerr := conn.Close(); cerr != nil {
grpclog.Infof("Failed to close conn to %s: %v", endpoint, cerr)
}
}()
}()
return RegisterPyreServiceHandler(ctx, mux, conn)
}
// RegisterPyreServiceHandler registers the http handlers for service PyreService to "mux".
// The handlers forward requests to the grpc endpoint over "conn".
func RegisterPyreServiceHandler(ctx context.Context, mux *runtime.ServeMux, conn *grpc.ClientConn) error {
return RegisterPyreServiceHandlerClient(ctx, mux, NewPyreServiceClient(conn))
}
// RegisterPyreServiceHandlerClient registers the http handlers for service PyreService
// to "mux". The handlers forward requests to the grpc endpoint over the given implementation of "PyreServiceClient".
// Note: the gRPC framework executes interceptors within the gRPC handler. If the passed in "PyreServiceClient"
// doesn't go through the normal gRPC flow (creating a gRPC client etc.) then it will be up to the passed in
// "PyreServiceClient" to call the correct interceptors.
func RegisterPyreServiceHandlerClient(ctx context.Context, mux *runtime.ServeMux, client PyreServiceClient) error {
mux.Handle("GET", pattern_PyreService_AuthorizeAccount_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
ctx, cancel := context.WithCancel(req.Context())
defer cancel()
if cn, ok := w.(http.CloseNotifier); ok {
go func(done <-chan struct{}, closed <-chan bool) {
select {
case <-done:
case <-closed:
cancel()
}
}(ctx.Done(), cn.CloseNotify())
}
inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
rctx, err := runtime.AnnotateContext(ctx, mux, req)
if err != nil {
runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
return
}
resp, md, err := request_PyreService_AuthorizeAccount_0(rctx, inboundMarshaler, client, req, pathParams)
ctx = runtime.NewServerMetadataContext(ctx, md)
if err != nil {
runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
return
}
forward_PyreService_AuthorizeAccount_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
})
mux.Handle("POST", pattern_PyreService_ListBuckets_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
ctx, cancel := context.WithCancel(req.Context())
defer cancel()
if cn, ok := w.(http.CloseNotifier); ok {
go func(done <-chan struct{}, closed <-chan bool) {
select {
case <-done:
case <-closed:
cancel()
}
}(ctx.Done(), cn.CloseNotify())
}
inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
rctx, err := runtime.AnnotateContext(ctx, mux, req)
if err != nil {
runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
return
}
resp, md, err := request_PyreService_ListBuckets_0(rctx, inboundMarshaler, client, req, pathParams)
ctx = runtime.NewServerMetadataContext(ctx, md)
if err != nil {
runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
return
}
forward_PyreService_ListBuckets_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
})
mux.Handle("POST", pattern_PyreService_CreateBucket_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
ctx, cancel := context.WithCancel(req.Context())
defer cancel()
if cn, ok := w.(http.CloseNotifier); ok {
go func(done <-chan struct{}, closed <-chan bool) {
select {
case <-done:
case <-closed:
cancel()
}
}(ctx.Done(), cn.CloseNotify())
}
inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
rctx, err := runtime.AnnotateContext(ctx, mux, req)
if err != nil {
runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
return
}
resp, md, err := request_PyreService_CreateBucket_0(rctx, inboundMarshaler, client, req, pathParams)
ctx = runtime.NewServerMetadataContext(ctx, md)
if err != nil {
runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
return
}
forward_PyreService_CreateBucket_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
})
mux.Handle("POST", pattern_PyreService_DeleteBucket_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
ctx, cancel := context.WithCancel(req.Context())
defer cancel()
if cn, ok := w.(http.CloseNotifier); ok {
go func(done <-chan struct{}, closed <-chan bool) {
select {
case <-done:
case <-closed:
cancel()
}
}(ctx.Done(), cn.CloseNotify())
}
inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
rctx, err := runtime.AnnotateContext(ctx, mux, req)
if err != nil {
runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
return
}
resp, md, err := request_PyreService_DeleteBucket_0(rctx, inboundMarshaler, client, req, pathParams)
ctx = runtime.NewServerMetadataContext(ctx, md)
if err != nil {
runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
return
}
forward_PyreService_DeleteBucket_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
})
mux.Handle("POST", pattern_PyreService_GetUploadUrl_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
ctx, cancel := context.WithCancel(req.Context())
defer cancel()
if cn, ok := w.(http.CloseNotifier); ok {
go func(done <-chan struct{}, closed <-chan bool) {
select {
case <-done:
case <-closed:
cancel()
}
}(ctx.Done(), cn.CloseNotify())
}
inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
rctx, err := runtime.AnnotateContext(ctx, mux, req)
if err != nil {
runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
return
}
resp, md, err := request_PyreService_GetUploadUrl_0(rctx, inboundMarshaler, client, req, pathParams)
ctx = runtime.NewServerMetadataContext(ctx, md)
if err != nil {
runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
return
}
forward_PyreService_GetUploadUrl_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
})
mux.Handle("POST", pattern_PyreService_StartLargeFile_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
ctx, cancel := context.WithCancel(req.Context())
defer cancel()
if cn, ok := w.(http.CloseNotifier); ok {
go func(done <-chan struct{}, closed <-chan bool) {
select {
case <-done:
case <-closed:
cancel()
}
}(ctx.Done(), cn.CloseNotify())
}
inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
rctx, err := runtime.AnnotateContext(ctx, mux, req)
if err != nil {
runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
return
}
resp, md, err := request_PyreService_StartLargeFile_0(rctx, inboundMarshaler, client, req, pathParams)
ctx = runtime.NewServerMetadataContext(ctx, md)
if err != nil {
runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
return
}
forward_PyreService_StartLargeFile_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
})
mux.Handle("POST", pattern_PyreService_GetUploadPartUrl_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
ctx, cancel := context.WithCancel(req.Context())
defer cancel()
if cn, ok := w.(http.CloseNotifier); ok {
go func(done <-chan struct{}, closed <-chan bool) {
select {
case <-done:
case <-closed:
cancel()
}
}(ctx.Done(), cn.CloseNotify())
}
inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
rctx, err := runtime.AnnotateContext(ctx, mux, req)
if err != nil {
runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
return
}
resp, md, err := request_PyreService_GetUploadPartUrl_0(rctx, inboundMarshaler, client, req, pathParams)
ctx = runtime.NewServerMetadataContext(ctx, md)
if err != nil {
runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
return
}
forward_PyreService_GetUploadPartUrl_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
})
mux.Handle("POST", pattern_PyreService_FinishLargeFile_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
ctx, cancel := context.WithCancel(req.Context())
defer cancel()
if cn, ok := w.(http.CloseNotifier); ok {
go func(done <-chan struct{}, closed <-chan bool) {
select {
case <-done:
case <-closed:
cancel()
}
}(ctx.Done(), cn.CloseNotify())
}
inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
rctx, err := runtime.AnnotateContext(ctx, mux, req)
if err != nil {
runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
return
}
resp, md, err := request_PyreService_FinishLargeFile_0(rctx, inboundMarshaler, client, req, pathParams)
ctx = runtime.NewServerMetadataContext(ctx, md)
if err != nil {
runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
return
}
forward_PyreService_FinishLargeFile_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
})
mux.Handle("POST", pattern_PyreService_ListFileVersions_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
ctx, cancel := context.WithCancel(req.Context())
defer cancel()
if cn, ok := w.(http.CloseNotifier); ok {
go func(done <-chan struct{}, closed <-chan bool) {
select {
case <-done:
case <-closed:
cancel()
}
}(ctx.Done(), cn.CloseNotify())
}
inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
rctx, err := runtime.AnnotateContext(ctx, mux, req)
if err != nil {
runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
return
}
resp, md, err := request_PyreService_ListFileVersions_0(rctx, inboundMarshaler, client, req, pathParams)
ctx = runtime.NewServerMetadataContext(ctx, md)
if err != nil {
runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
return
}
forward_PyreService_ListFileVersions_0(ctx, mux, outboundMarshaler, w, req, resp, mux.GetForwardResponseOptions()...)
})
return nil
}
var (
pattern_PyreService_AuthorizeAccount_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2}, []string{"b2api", "v1", "b2_authorize_account"}, ""))
pattern_PyreService_ListBuckets_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2}, []string{"b2api", "v1", "b2_list_buckets"}, ""))
pattern_PyreService_CreateBucket_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2}, []string{"b2api", "v1", "b2_create_bucket"}, ""))
pattern_PyreService_DeleteBucket_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2}, []string{"b2api", "v1", "b2_delete_bucket"}, ""))
pattern_PyreService_GetUploadUrl_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2}, []string{"b2api", "v1", "b2_get_upload_url"}, ""))
pattern_PyreService_StartLargeFile_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2}, []string{"b2api", "v1", "b2_start_large_file"}, ""))
pattern_PyreService_GetUploadPartUrl_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2}, []string{"b2api", "v1", "b2_get_upload_part_url"}, ""))
pattern_PyreService_FinishLargeFile_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2}, []string{"b2api", "v1", "b2_finish_large_file"}, ""))
pattern_PyreService_ListFileVersions_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1, 2, 2}, []string{"b2api", "v1", "b2_list_file_versions"}, ""))
)
var (
forward_PyreService_AuthorizeAccount_0 = runtime.ForwardResponseMessage
forward_PyreService_ListBuckets_0 = runtime.ForwardResponseMessage
forward_PyreService_CreateBucket_0 = runtime.ForwardResponseMessage
forward_PyreService_DeleteBucket_0 = runtime.ForwardResponseMessage
forward_PyreService_GetUploadUrl_0 = runtime.ForwardResponseMessage
forward_PyreService_StartLargeFile_0 = runtime.ForwardResponseMessage
forward_PyreService_GetUploadPartUrl_0 = runtime.ForwardResponseMessage
forward_PyreService_FinishLargeFile_0 = runtime.ForwardResponseMessage
forward_PyreService_ListFileVersions_0 = runtime.ForwardResponseMessage
)

335
vendor/github.com/kurin/blazer/internal/pyre/proto/pyre.proto generated vendored Normal file
View File

@ -0,0 +1,335 @@
// Copyright 2018, Google
//
// 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.
syntax = "proto3";
import "google/api/annotations.proto";
package pyre.proto;
message AuthorizeAccountRequest {}
message AuthorizeAccountResponse {
// The identifier for the account.
string account_id = 1;
// An authorization token to use with all calls, other than
// b2_authorize_account, that need an Authorization header. This
// authorization token is valid for at most 24 hours.
string authorization_token = 2;
// The base URL to use for all API calls except for uploading and downloading
// files.
string api_url = 3;
// The base URL to use for downloading files.
string download_url = 4;
// The recommended size for each part of a large file. We recommend using
// this part size for optimal upload performance.
int32 recommended_part_size = 5;
// The smallest possible size of a part of a large file (except the last
// one). This is smaller than the recommended part size. If you use it, you
// may find that it takes longer overall to upload a large file.
int32 absolute_minimum_part_size = 6;
int32 minimum_part_size = 7; // alias for recommended_part_size
}
message ListBucketsRequest {
// The ID of your account.
string account_id = 1;
// When specified, the result will be a list containing just this bucket, if
// it's present in the account, or no buckets if the account does not have a
// bucket with this ID.
string bucket_id = 2;
// When specified, the result will be a list containing just this bucket, if
// it's present in the account, or no buckets if the account does not have a
// bucket with this ID.
string bucket_name = 3;
// If present, B2 will use it as a filter for bucket types returned in the
// list buckets response. If not present, only buckets with bucket types
// "allPublic", "allPrivate" and "snapshot" will be returned. A special
// filter value of ["all"] will return all bucket types.
//
// If present, it must be in the form of a json array of strings containing
// valid bucket types in quotes and separated by a comma. Valid bucket types
// include "allPrivate", "allPublic", "snapshot", and other values added in
// the future.
//
// A bad request error will be returned if "all" is used with other bucket
// types, this field is empty, or invalid bucket types are requested.
repeated string bucket_types = 4;
}
message LifecycleRule {
// After a file is uploaded, the number of days before it can be hidden.
int32 days_from_uploading_to_hiding = 1;
// After a file is hidden, the number of days before it can be deleted.
int32 days_from_hiding_to_deleting = 2;
// The rule applies to files whose names start with this prefix.
string file_name_prefix = 3;
}
message CorsRule {
// A name for humans to recognize the rule in a user interface. Names must be
// unique within a bucket. Names can consist of upper-case and lower-case
// English letters, numbers, and "-". No other characters are allowed. A name
// must be at least 6 characters long, and can be at most 50 characters long.
// These are all allowed names: myPhotosSite, allowAnyHttps,
// backblaze-images. Names that start with "b2-" are reserved for Backblaze
// use.
string cors_rule_name = 1;
// A non-empty list specifying which origins the rule covers. Each value may
// have one of many formats:
//
// * The origin can be fully specified, such as http://www.example.com:8180
// or https://www.example.com:4433.
//
// * The origin can omit a default port, such as https://www.example.com.
//
// * The origin may have a single '*' as part of the domain name, such as
// https://*.example.com, https://*:8443 or https://*.
//
// * The origin may be 'https' to match any origin that uses HTTPS. (This is
// broader than 'https://*' because it matches any port.)
//
// * Finally, the origin can be a single '*' to match any origin.
//
// If any entry is "*", it must be the only entry. There can be at most one
// "https" entry and no entry after it may start with "https:".
repeated string allowed_origins = 2;
// A list specifying which operations the rule allows. At least one value
// must be specified. All values must be from the following list. More values
// may be added to this list at any time.
//
// b2_download_file_by_name
// b2_download_file_by_id
// b2_upload_file
// b2_upload_part
repeated string allowed_operations = 3;
// If present, this is a list of headers that are allowed in a pre-flight
// OPTIONS's request's Access-Control-Request-Headers header value. Each
// value may have one of many formats:
//
// * It may be a complete header name, such as x-bz-content-sha1.
//
// * It may end with an asterisk, such as x-bz-info-*.
//
// * Finally, it may be a single '*' to match any header.
//
// If any entry is "*", it must be the only entry in the list. If this list
// is missing, it is be treated as if it is a list with no entries.
repeated string allowed_headers = 4;
// If present, this is a list of headers that may be exposed to an
// application inside the client (eg. exposed to Javascript in a browser).
// Each entry in the list must be a complete header name (eg.
// "x-bz-content-sha1"). If this list is missing or empty, no headers will be
// exposed.
repeated string expose_headers = 5;
// This specifies the maximum number of seconds that a browser may cache the
// response to a preflight request. The value must not be negative and it
// must not be more than 86,400 seconds (one day).
int32 max_age_seconds = 6;
}
message Bucket {
string account_id = 1;
string bucket_id = 2;
string bucket_name = 3;
string bucket_type = 4;
map<string, string> bucket_info = 5;
repeated CorsRule cores_rules = 6;
repeated LifecycleRule lifecycle_rules = 7;
int32 revision = 8;
}
message ListBucketsResponse {
repeated Bucket buckets = 1;
}
message GetUploadUrlRequest {
string bucket_id = 1;
}
message GetUploadUrlResponse {
string bucket_id = 1;
string upload_url = 2;
string authorization_token = 3;
}
message UploadFileResponse {
string file_id = 1;
string file_name = 2;
string account_id = 3;
string bucket_id = 4;
int32 content_length = 5;
string content_sha1 = 6;
string content_type = 7;
map<string, string> file_info = 8;
string action = 9;
int64 upload_timestamp = 10;
}
message StartLargeFileRequest {
string bucket_id = 1;
string file_name = 2;
string content_type = 3;
map<string, string> file_info = 4;
}
message StartLargeFileResponse {
string file_id = 1;
string file_name = 2;
string account_id = 3;
string bucket_id = 4;
string content_type = 5;
map<string, string> file_info = 6;
int64 upload_timestamp = 7;
}
message GetUploadPartUrlRequest {
string file_id = 1;
}
message GetUploadPartUrlResponse {
string file_id = 1;
string upload_url = 2;
string authorization_token = 3;
}
message FinishLargeFileRequest {
string file_id = 1;
repeated string part_sha1_array = 2;
// string sha1 = 3;
}
message FinishLargeFileResponse {
string file_id = 1;
string file_name = 2;
string account_id = 3;
string bucket_id = 4;
int64 content_length = 5;
string content_sha1 = 6; // always "none"
string content_type = 7;
map<string, string> file_info = 8;
string action = 9;
int64 upload_timestamp = 10;
}
message ListFileVersionsRequest {
string bucket_id = 1;
string start_file_name = 2;
string start_file_id = 3;
int32 max_file_count = 4;
string prefix = 5;
string delimiter = 6;
}
message ListFileVersionsResponse {
repeated File files = 1;
string next_file_name = 2;
string next_file_id = 3;
}
message File {
string file_id = 1;
string file_name = 2;
int64 content_length = 3;
string content_type = 4;
string content_sha1 = 5;
map<string, string> file_info = 6;
string action = 7;
int64 size = 8;
int64 upload_timestamp = 9;
}
service PyreService {
// Used to log in to the B2 API. Returns an authorization token that can be
// used for account-level operations, and a URL that should be used as the
// base URL for subsequent API calls.
rpc AuthorizeAccount(AuthorizeAccountRequest) returns (AuthorizeAccountResponse) {
option (google.api.http) = {
get: "/b2api/v1/b2_authorize_account"
};
}
// Lists buckets associated with an account, in alphabetical order by bucket
// name.
rpc ListBuckets(ListBucketsRequest) returns (ListBucketsResponse) {
option (google.api.http) = {
post: "/b2api/v1/b2_list_buckets"
body: "*"
};
}
// Creates a new bucket. A bucket belongs to the account used to create it.
//
// Buckets can be named. The name must be globally unique. No account can use
// a bucket with the same name. Buckets are assigned a unique bucketId which
// is used when uploading, downloading, or deleting files.
//
// There is a limit of 100 buckets per account.
rpc CreateBucket(Bucket) returns (Bucket) {
option (google.api.http) = {
post: "/b2api/v1/b2_create_bucket"
body: "*"
};
}
// Deletes the bucket specified. Only buckets that contain no version of any
// files can be deleted.
rpc DeleteBucket(Bucket) returns (Bucket) {
option (google.api.http) = {
post: "/b2api/v1/b2_delete_bucket"
body: "*"
};
}
rpc GetUploadUrl(GetUploadUrlRequest) returns (GetUploadUrlResponse) {
option (google.api.http) = {
post: "/b2api/v1/b2_get_upload_url"
body: "*"
};
}
// Prepares for uploading the parts of a large file.
rpc StartLargeFile(StartLargeFileRequest) returns (StartLargeFileResponse) {
option (google.api.http) = {
post: "/b2api/v1/b2_start_large_file"
body: "*"
};
}
// Gets an URL to use for uploading parts of a large file.
rpc GetUploadPartUrl(GetUploadPartUrlRequest) returns (GetUploadPartUrlResponse) {
option (google.api.http) = {
post: "/b2api/v1/b2_get_upload_part_url"
body: "*"
};
}
// Converts the parts that have been uploaded into a single B2 file.
rpc FinishLargeFile(FinishLargeFileRequest) returns (FinishLargeFileResponse) {
option (google.api.http) = {
post: "/b2api/v1/b2_finish_large_file"
body: "*"
};
}
// Lists all of the versions of all of the files contained in one bucket, in
// alphabetical order by file name, and by reverse of date/time uploaded for
// versions of files with the same name.
rpc ListFileVersions(ListFileVersionsRequest) returns (ListFileVersionsResponse) {
option (google.api.http) = {
post: "/b2api/v1/b2_list_file_versions"
body: "*"
};
}
}

20
vendor/github.com/kurin/blazer/internal/pyre/pyre.go generated vendored Normal file
View File

@ -0,0 +1,20 @@
// Copyright 2018, Google
//
// 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 pyre provides a gRPC-based implementation of B2, as well as a
// RESTful gateway on top of it.
package pyre
//go:generate protoc -I/usr/local/include -I. -I$GOPATH/src -I$GOPATH/src/github.com/grpc-ecosystem/grpc-gateway/third_party/googleapis --grpc-gateway_out=logtostderr=true:. proto/pyre.proto
//go:generate protoc -I/usr/local/include -I. -I$GOPATH/src -I$GOPATH/src/github.com/grpc-ecosystem/grpc-gateway/third_party/googleapis --go_out=plugins=grpc:. proto/pyre.proto

109
vendor/github.com/kurin/blazer/internal/pyre/simple.go generated vendored Normal file
View File

@ -0,0 +1,109 @@
// Copyright 2018, Google
//
// 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 pyre
import (
"encoding/json"
"fmt"
"io"
"net/http"
"strconv"
"strings"
"github.com/google/uuid"
"github.com/kurin/blazer/internal/b2types"
)
const uploadFilePrefix = "/b2api/v1/b2_upload_file/"
type SimpleFileManager interface {
Writer(bucket, name, id string) (io.WriteCloser, error)
}
type simpleFileServer struct {
fm SimpleFileManager
}
type uploadRequest struct {
name string
contentType string
size int64
sha1 string
bucket string
info map[string]string
}
func parseUploadHeaders(r *http.Request) (*uploadRequest, error) {
ur := &uploadRequest{info: make(map[string]string)}
ur.name = r.Header.Get("X-Bz-File-Name")
ur.contentType = r.Header.Get("Content-Type")
ur.sha1 = r.Header.Get("X-Bz-Content-Sha1")
size, err := strconv.ParseInt(r.Header.Get("Content-Length"), 10, 64)
if err != nil {
return nil, err
}
ur.size = size
for k := range r.Header {
if !strings.HasPrefix("X-Bz-Info-", k) {
continue
}
name := strings.TrimPrefix("X-Bz-Info-", k)
ur.info[name] = r.Header.Get(k)
}
ur.bucket = strings.TrimPrefix(r.URL.Path, uploadFilePrefix)
return ur, nil
}
func (fs *simpleFileServer) ServeHTTP(rw http.ResponseWriter, r *http.Request) {
req, err := parseUploadHeaders(r)
if err != nil {
http.Error(rw, err.Error(), 500)
fmt.Println("oh no")
return
}
id := uuid.New().String()
w, err := fs.fm.Writer(req.bucket, req.name, id)
if err != nil {
http.Error(rw, err.Error(), 500)
fmt.Println("oh no")
return
}
if _, err := io.Copy(w, io.LimitReader(r.Body, req.size)); err != nil {
w.Close()
http.Error(rw, err.Error(), 500)
fmt.Println("oh no")
return
}
if err := w.Close(); err != nil {
http.Error(rw, err.Error(), 500)
fmt.Println("oh no")
return
}
resp := &b2types.UploadFileResponse{
FileID: id,
Name: req.name,
SHA1: req.sha1,
BucketID: req.bucket,
}
if err := json.NewEncoder(rw).Encode(resp); err != nil {
http.Error(rw, err.Error(), 500)
fmt.Println("oh no")
return
}
}
func RegisterSimpleFileManagerOnMux(f SimpleFileManager, mux *http.ServeMux) {
mux.Handle(uploadFilePrefix, &simpleFileServer{fm: f})
}

2
vendor/github.com/kurin/blazer/x/consistent/consistent_test.go generated vendored
View File

@ -30,9 +30,9 @@ func TestOperationLive(t *testing.T) {
wg.Add(1)
i := i
go func() {
var n int
defer wg.Done()
for j := 0; j < 10; j++ {
var n int
if err := g.Operate(ctx, name, func(b []byte) ([]byte, error) {
if len(b) > 0 {
i, err := strconv.Atoi(string(b))