mirror of https://github.com/gogs/gogs.git
63 lines
1.4 KiB
Go
63 lines
1.4 KiB
Go
// Copyright 2019 The Gogs Authors. All rights reserved.
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// Use of this source code is governed by a MIT-style
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// license that can be found in the LICENSE file.
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package context
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import (
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"os"
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"path"
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"github.com/Unknwon/com"
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log "gopkg.in/clog.v1"
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"github.com/gogs/gogs/pkg/markup"
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"github.com/gogs/gogs/pkg/setting"
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"github.com/gogs/gogs/pkg/tool"
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)
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// readServerNotice checks if a notice file exists and loads the message to display
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// on all pages.
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func readServerNotice() string {
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fpath := path.Join(setting.CustomPath, "notice.md")
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if !com.IsExist(fpath) {
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return ""
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}
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f, err := os.Open(fpath)
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if err != nil {
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log.Error(2, "Failed to open notice file %s: %v", fpath, err)
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return ""
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}
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defer f.Close()
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fi, err := f.Stat()
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if err != nil {
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log.Error(2, "Failed to stat notice file %s: %v", fpath, err)
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return ""
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}
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// Limit size to prevent very large messages from breaking pages
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var maxSize int64 = 1024
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if fi.Size() > maxSize { // Refuse to print very long messages
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log.Error(2, "Notice file %s size too large [%d > %d]: refusing to render", fpath, fi.Size(), maxSize)
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return ""
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}
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buf := make([]byte, maxSize)
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n, err := f.Read(buf)
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if err != nil {
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log.Error(2, "Failed to read notice file: %v", err)
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return ""
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}
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buf = buf[:n]
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if !tool.IsTextFile(buf) {
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log.Error(2, "Notice file %s does not appear to be a text file: aborting", fpath)
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return ""
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}
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return string(markup.RawMarkdown(buf, ""))
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}
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