1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
|
// Copyright 2014 The Gogs Authors. All rights reserved.
// Copyright 2018 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package repo
import (
"fmt"
"io"
"path"
"strings"
"code.gitea.io/gitea/modules/base"
"code.gitea.io/gitea/modules/charset"
"code.gitea.io/gitea/modules/context"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/lfs"
"code.gitea.io/gitea/modules/log"
)
// ServeData download file from io.Reader
func ServeData(ctx *context.Context, name string, size int64, reader io.Reader) error {
buf := make([]byte, 1024)
n, err := reader.Read(buf)
if err != nil && err != io.EOF {
return err
}
if n >= 0 {
buf = buf[:n]
}
ctx.Resp.Header().Set("Cache-Control", "public,max-age=86400")
if size >= 0 {
ctx.Resp.Header().Set("Content-Length", fmt.Sprintf("%d", size))
} else {
log.Error("ServeData called to serve data: %s with size < 0: %d", name, size)
}
name = path.Base(name)
// Google Chrome dislike commas in filenames, so let's change it to a space
name = strings.ReplaceAll(name, ",", " ")
if base.IsTextFile(buf) || ctx.QueryBool("render") {
cs, err := charset.DetectEncoding(buf)
if err != nil {
log.Error("Detect raw file %s charset failed: %v, using by default utf-8", name, err)
cs = "utf-8"
}
ctx.Resp.Header().Set("Content-Type", "text/plain; charset="+strings.ToLower(cs))
} else if base.IsImageFile(buf) || base.IsPDFFile(buf) {
ctx.Resp.Header().Set("Content-Disposition", fmt.Sprintf(`inline; filename="%s"`, name))
ctx.Resp.Header().Set("Access-Control-Expose-Headers", "Content-Disposition")
if base.IsSVGImageFile(buf) {
ctx.Resp.Header().Set("Content-Security-Policy", "default-src 'none'; style-src 'unsafe-inline'; sandbox")
ctx.Resp.Header().Set("X-Content-Type-Options", "nosniff")
ctx.Resp.Header().Set("Content-Type", base.SVGMimeType)
}
} else {
ctx.Resp.Header().Set("Content-Disposition", fmt.Sprintf(`attachment; filename="%s"`, name))
ctx.Resp.Header().Set("Access-Control-Expose-Headers", "Content-Disposition")
}
_, err = ctx.Resp.Write(buf)
if err != nil {
return err
}
_, err = io.Copy(ctx.Resp, reader)
return err
}
// ServeBlob download a git.Blob
func ServeBlob(ctx *context.Context, blob *git.Blob) error {
dataRc, err := blob.DataAsync()
if err != nil {
return err
}
defer func() {
if err = dataRc.Close(); err != nil {
log.Error("ServeBlob: Close: %v", err)
}
}()
return ServeData(ctx, ctx.Repo.TreePath, blob.Size(), dataRc)
}
// ServeBlobOrLFS download a git.Blob redirecting to LFS if necessary
func ServeBlobOrLFS(ctx *context.Context, blob *git.Blob) error {
dataRc, err := blob.DataAsync()
if err != nil {
return err
}
defer func() {
if err = dataRc.Close(); err != nil {
log.Error("ServeBlobOrLFS: Close: %v", err)
}
}()
if meta, _ := lfs.ReadPointerFile(dataRc); meta != nil {
meta, _ = ctx.Repo.Repository.GetLFSMetaObjectByOid(meta.Oid)
if meta == nil {
return ServeBlob(ctx, blob)
}
lfsDataRc, err := lfs.ReadMetaObject(meta)
if err != nil {
return err
}
defer func() {
if err = lfsDataRc.Close(); err != nil {
log.Error("ServeBlobOrLFS: Close: %v", err)
}
}()
return ServeData(ctx, ctx.Repo.TreePath, meta.Size, lfsDataRc)
}
return ServeBlob(ctx, blob)
}
// SingleDownload download a file by repos path
func SingleDownload(ctx *context.Context) {
blob, err := ctx.Repo.Commit.GetBlobByPath(ctx.Repo.TreePath)
if err != nil {
if git.IsErrNotExist(err) {
ctx.NotFound("GetBlobByPath", nil)
} else {
ctx.ServerError("GetBlobByPath", err)
}
return
}
if err = ServeBlob(ctx, blob); err != nil {
ctx.ServerError("ServeBlob", err)
}
}
// SingleDownloadOrLFS download a file by repos path redirecting to LFS if necessary
func SingleDownloadOrLFS(ctx *context.Context) {
blob, err := ctx.Repo.Commit.GetBlobByPath(ctx.Repo.TreePath)
if err != nil {
if git.IsErrNotExist(err) {
ctx.NotFound("GetBlobByPath", nil)
} else {
ctx.ServerError("GetBlobByPath", err)
}
return
}
if err = ServeBlobOrLFS(ctx, blob); err != nil {
ctx.ServerError("ServeBlobOrLFS", err)
}
}
// DownloadByID download a file by sha1 ID
func DownloadByID(ctx *context.Context) {
blob, err := ctx.Repo.GitRepo.GetBlob(ctx.Params("sha"))
if err != nil {
if git.IsErrNotExist(err) {
ctx.NotFound("GetBlob", nil)
} else {
ctx.ServerError("GetBlob", err)
}
return
}
if err = ServeBlob(ctx, blob); err != nil {
ctx.ServerError("ServeBlob", err)
}
}
// DownloadByIDOrLFS download a file by sha1 ID taking account of LFS
func DownloadByIDOrLFS(ctx *context.Context) {
blob, err := ctx.Repo.GitRepo.GetBlob(ctx.Params("sha"))
if err != nil {
if git.IsErrNotExist(err) {
ctx.NotFound("GetBlob", nil)
} else {
ctx.ServerError("GetBlob", err)
}
return
}
if err = ServeBlobOrLFS(ctx, blob); err != nil {
ctx.ServerError("ServeBlob", err)
}
}
|
