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22a39bb961
Fixes https://github.com/go-gitea/gitea/issues/25094 `GetBlobContent` will only get the first 1024 bytes, if the README.md size is larger than 1024 bytes, We can not render the rest of them. After this fix, we should provide the limited size to read when call `GetBlobContent`. After:  --------- Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
67 lines
1.6 KiB
Go
67 lines
1.6 KiB
Go
// Copyright 2023 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package util
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import (
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"bytes"
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"errors"
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"testing"
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"github.com/stretchr/testify/assert"
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)
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type readerWithError struct {
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buf *bytes.Buffer
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}
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func (r *readerWithError) Read(p []byte) (n int, err error) {
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if r.buf.Len() < 2 {
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return 0, errors.New("test error")
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}
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return r.buf.Read(p)
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}
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func TestReadWithLimit(t *testing.T) {
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bs := []byte("0123456789abcdef")
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// normal test
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buf, err := readWithLimit(bytes.NewBuffer(bs), 5, 2)
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assert.NoError(t, err)
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assert.Equal(t, []byte("01"), buf)
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buf, err = readWithLimit(bytes.NewBuffer(bs), 5, 5)
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assert.NoError(t, err)
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assert.Equal(t, []byte("01234"), buf)
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buf, err = readWithLimit(bytes.NewBuffer(bs), 5, 6)
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assert.NoError(t, err)
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assert.Equal(t, []byte("012345"), buf)
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buf, err = readWithLimit(bytes.NewBuffer(bs), 5, len(bs))
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assert.NoError(t, err)
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assert.Equal(t, []byte("0123456789abcdef"), buf)
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buf, err = readWithLimit(bytes.NewBuffer(bs), 5, 100)
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assert.NoError(t, err)
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assert.Equal(t, []byte("0123456789abcdef"), buf)
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// test with error
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buf, err = readWithLimit(&readerWithError{bytes.NewBuffer(bs)}, 5, 10)
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assert.NoError(t, err)
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assert.Equal(t, []byte("0123456789"), buf)
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buf, err = readWithLimit(&readerWithError{bytes.NewBuffer(bs)}, 5, 100)
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assert.ErrorContains(t, err, "test error")
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assert.Empty(t, buf)
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// test public function
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buf, err = ReadWithLimit(bytes.NewBuffer(bs), 2)
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assert.NoError(t, err)
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assert.Equal(t, []byte("01"), buf)
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buf, err = ReadWithLimit(bytes.NewBuffer(bs), 9999999)
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assert.NoError(t, err)
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assert.Equal(t, []byte("0123456789abcdef"), buf)
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}
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