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aa43d34a86
This revert will be reverted once v1.1 is released and has its own release branch. Since we had already change on top of this, there was no cleaner way of cutting those changes out. This commit reverts the following commits: Revert "Update backend helpers and templates to new url schema" This reverts commitfc6cdd0611. Revert "Refactor graph.js" This reverts commit445fac56e0. Revert "Use query parameters in the url" This reverts commit3e18d86d8a. Revert "Point to correct place for GraphLinkForExpression" This reverts commit3da825fc76. Assets are also updated.
53 lines
1.9 KiB
Go
53 lines
1.9 KiB
Go
// Copyright 2013 The Prometheus Authors
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package strutil
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import (
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"fmt"
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"net/url"
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"regexp"
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"strings"
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)
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var (
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invalidLabelCharRE = regexp.MustCompile(`[^a-zA-Z0-9_]`)
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)
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// TableLinkForExpression creates an escaped relative link to the table view of
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// the provided expression.
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func TableLinkForExpression(expr string) string {
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// url.QueryEscape percent-escapes everything except spaces, for which it
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// uses "+". However, in the non-query part of a URI, only percent-escaped
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// spaces are legal, so we need to manually replace "+" with "%20" after
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// query-escaping the string.
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//
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// See also:
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// http://stackoverflow.com/questions/1634271/url-encoding-the-space-character-or-20.
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urlData := url.QueryEscape(fmt.Sprintf(`[{"expr":%q,"tab":1}]`, expr))
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return fmt.Sprintf("/graph#%s", strings.Replace(urlData, "+", "%20", -1))
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}
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// GraphLinkForExpression creates an escaped relative link to the graph view of
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// the provided expression.
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func GraphLinkForExpression(expr string) string {
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urlData := url.QueryEscape(fmt.Sprintf(`[{"expr":%q,"tab":0}]`, expr))
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return fmt.Sprintf("/graph#%s", strings.Replace(urlData, "+", "%20", -1))
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}
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// SanitizeLabelName replaces anything that doesn't match
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// client_label.LabelNameRE with an underscore.
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func SanitizeLabelName(name string) string {
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return invalidLabelCharRE.ReplaceAllString(name, "_")
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}
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