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/filepath"
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"github.com/unknwon/com"
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log "unknwon.dev/clog/v2"
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"gogs.io/gogs/internal/conf"
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"gogs.io/gogs/internal/markup"
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"gogs.io/gogs/internal/tool"
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)
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// renderNoticeBanner checks if a notice banner file exists and loads the message to display
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// on all pages.
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func (c *Context) renderNoticeBanner() {
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fpath := filepath.Join(conf.CustomDir(), "notice", "banner.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("Failed to open file %q: %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("Failed to stat file %q: %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.Warn("Notice banner file %q 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("Failed to read file %q: %v", fpath, 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.Warn("Notice banner file %q does not appear to be a text file: aborting", fpath)
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return
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}
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c.Data["ServerNotice"] = string(markup.RawMarkdown(buf, ""))
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}
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