vole
Clone
Read only, no credentials:
https://rodent.software/vole.git
Write over SSH with a registered key:
git clone ssh://git@rodent.software:2222/vole.git
A free and open-source forge that lives in your Git repo.
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4581690d
Keenan Nemetz
13d ago
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1 | // Read-path bounds: a large blob must not cost a request in proportion to its |
| 2 | // size, and a metadata file past the cap must be refused at the push boundary. | |
| 3 | package server_test | |
| 4 | ||
| 5 | import ( | |
| 6 | "io" | |
| 7 | "net/http" | |
| 8 | "strings" | |
| 9 | "testing" | |
| 10 | ) | |
| 11 | ||
| 12 | // TestLargeBlobIsBounded covers every anonymous way a repository blob reaches a | |
| 13 | // stranger: the inline viewer, the raw download and the README on the overview. | |
| 14 | func TestLargeBlobIsBounded(t *testing.T) { | |
| 15 | t.Parallel() | |
| 16 | f := newFixture(t) | |
| 17 | f.publish(f.repo) | |
| 18 | ||
| 19 | // 8 MiB of text is eight times the inline cap and well under the 100 MiB blob | |
| 20 | // a push may carry, so it is a file the forge accepts and must still read | |
| 21 | // cheaply. | |
| 22 | pattern := "0123456789abcdef" | |
| 23 | big := strings.Repeat(pattern, (8<<20)/len(pattern)) | |
| 24 | readme := "# big\n\n" + strings.Repeat("a readme line\n", (2<<20)/14) | |
| 25 | ||
| 26 | work := workRepo(t, map[string]string{ | |
| 27 | "big.txt": big, | |
| 28 | "README.md": readme, | |
| 29 | "small.txt": "small\n", | |
| 30 | }) | |
| 31 | if _, errs, err := f.git(work, "push", f.sshURL(f.repo), "main:refs/heads/main"); err != nil { | |
| 32 | t.Fatalf("push: %v\n%s", err, errs) | |
| 33 | } | |
| 34 | ||
| 35 | // The inline view is a preview: the first MiB, and the file's real size stated | |
| 36 | // rather than the size of the preview. | |
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ed03b3d1
Keenan Nemetz
6h ago
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37 | code, page := f.get("/" + f.repo + "/blob/main/big.txt") |
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4581690d
Keenan Nemetz
13d ago
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38 | if code != http.StatusOK { |
| 39 | t.Fatalf("blob page = %d", code) | |
| 40 | } | |
| 41 | if !strings.Contains(page, "Showing the first 1 MiB") { | |
| 42 | t.Fatalf("blob page did not say it was truncated") | |
| 43 | } | |
| 44 | if !strings.Contains(page, "8.0 MiB") { | |
| 45 | t.Fatalf("blob page did not state the file's size") | |
| 46 | } | |
| 47 | if strings.Contains(page, strings.Repeat(pattern, (3<<20)/len(pattern))) { | |
| 48 | // 1 MiB of the pattern is expected; 3 MiB would mean the page carried the | |
| 49 | // blob and the cap only applied after reading all of it. | |
| 50 | t.Fatalf("blob page carried more than the inline cap") | |
| 51 | } | |
| 52 | ||
| 53 | // The raw download carries all of it, streamed, with a length the client can | |
| 54 | // trust before the first byte arrives. | |
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ed03b3d1
Keenan Nemetz
6h ago
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55 | resp, err := http.Get(f.http.URL + "/" + f.repo + "/raw/main/big.txt") |
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4581690d
Keenan Nemetz
13d ago
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56 | if err != nil { |
| 57 | t.Fatal(err) | |
| 58 | } | |
| 59 | defer resp.Body.Close() | |
| 60 | if resp.StatusCode != http.StatusOK { | |
| 61 | t.Fatalf("raw = %d", resp.StatusCode) | |
| 62 | } | |
| 63 | if resp.ContentLength != int64(len(big)) { | |
| 64 | t.Fatalf("raw Content-Length = %d, want %d", resp.ContentLength, len(big)) | |
| 65 | } | |
| 66 | n, err := io.Copy(io.Discard, resp.Body) | |
| 67 | if err != nil { | |
| 68 | t.Fatal(err) | |
| 69 | } | |
| 70 | if n != int64(len(big)) { | |
| 71 | t.Fatalf("raw body = %d bytes, want %d", n, len(big)) | |
| 72 | } | |
| 73 | ||
| 74 | // A README past the cap is named and measured instead of rendered: silently | |
| 75 | // dropping it would look like a bug in the forge. | |
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ed03b3d1
Keenan Nemetz
6h ago
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76 | code, overview := f.get("/" + f.repo) |
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4581690d
Keenan Nemetz
13d ago
|
77 | if code != http.StatusOK { |
| 78 | t.Fatalf("overview = %d", code) | |
| 79 | } | |
| 80 | if !strings.Contains(overview, "past the 1.0 MiB") { | |
| 81 | t.Fatalf("overview did not explain the oversized README") | |
| 82 | } | |
| 83 | if strings.Contains(overview, "a readme line") { | |
| 84 | t.Fatal("overview rendered a README past the cap") | |
| 85 | } | |
| 86 | ||
| 87 | // Small files are unaffected. | |
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ed03b3d1
Keenan Nemetz
6h ago
|
88 | if code, body := f.get("/" + f.repo + "/blob/main/small.txt"); code != http.StatusOK || !strings.Contains(body, "small") { |
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4581690d
Keenan Nemetz
13d ago
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89 | t.Fatalf("small blob = %d", code) |
| 90 | } | |
| 91 | } | |
| 92 | ||
| 93 | // TestOversizedMetadataPushIsRejected is the write-side half of the metadata | |
| 94 | // limit: the push is refused with a reason, so nobody discovers the cap by | |
| 95 | // breaking their issue list. | |
| 96 | func TestOversizedMetadataPushIsRejected(t *testing.T) { | |
| 97 | t.Parallel() | |
| 98 | f := newFixture(t) | |
| 99 | f.publish(f.repo) | |
| 100 | ||
| 101 | huge := strings.Repeat("x", 5<<20) // past MaxFileBytes, under max_blob_bytes | |
| 102 | work := f.issuesRepo(t, issueFiles("01M5JR2JK29KKMAA1T9MDNTPBZ", "too big", huge)) | |
| 103 | ||
| 104 | _, errs, err := f.git(work, "push", f.sshURL(f.repo), "HEAD:refs/heads/vole") | |
| 105 | if err == nil { | |
| 106 | t.Fatal("a 5 MiB issue file was accepted") | |
| 107 | } | |
| 108 | if !strings.Contains(errs, "limit") { | |
| 109 | t.Fatalf("rejection did not name the limit:\n%s", errs) | |
| 110 | } | |
| 111 | if _, _, err := runGit(t, f.cfg.ReposDir()+"/"+f.repo+".git", | |
| 112 | "rev-parse", "--verify", "--quiet", "refs/heads/vole"); err == nil { | |
| 113 | t.Fatal("the rejected push created the metadata branch") | |
| 114 | } | |
| 115 | } |