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// Copyright 2019 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package templates
import (
"html/template"
"strings"
"testing"
"code.gitea.io/gitea/modules/util"
"github.com/stretchr/testify/assert"
)
func TestSubjectBodySeparator(t *testing.T) {
test := func(input, subject, body string) {
loc := mailSubjectSplit.FindIndex([]byte(input))
if loc == nil {
assert.Empty(t, subject, "no subject found, but one expected")
assert.Equal(t, body, input)
} else {
assert.Equal(t, subject, input[0:loc[0]])
assert.Equal(t, body, input[loc[1]:])
}
}
test("Simple\n---------------\nCase",
"Simple\n",
"\nCase")
test("Only\nBody",
"",
"Only\nBody")
test("Minimal\n---\nseparator",
"Minimal\n",
"\nseparator")
test("False --- separator",
"",
"False --- separator")
test("False\n--- separator",
"",
"False\n--- separator")
test("False ---\nseparator",
"",
"False ---\nseparator")
test("With extra spaces\n----- \t \nBody",
"With extra spaces\n",
"\nBody")
test("With leading spaces\n -------\nOnly body",
"",
"With leading spaces\n -------\nOnly body")
test("Multiple\n---\n-------\n---\nSeparators",
"Multiple\n",
"\n-------\n---\nSeparators")
test("Insufficient\n--\nSeparators",
"",
"Insufficient\n--\nSeparators")
}
func TestJSEscapeSafe(t *testing.T) {
assert.EqualValues(t, `\u0026\u003C\u003E\'\"`, jsEscapeSafe(`&<>'"`))
}
func TestSanitizeHTML(t *testing.T) {
assert.Equal(t, template.HTML(`<a href="/" rel="nofollow">link</a> xss <div>inline</div>`), SanitizeHTML(`<a href="/">link</a> <a href="javascript:">xss</a> <div style="dangerous">inline</div>`))
}
func TestTemplateIif(t *testing.T) {
tmpl := template.New("test")
tmpl.Funcs(template.FuncMap{"Iif": iif})
template.Must(tmpl.Parse(`{{if .Value}}true{{else}}false{{end}}:{{Iif .Value "true" "false"}}`))
cases := []any{nil, false, true, "", "string", 0, 1}
w := &strings.Builder{}
truthyCount := 0
for i, v := range cases {
w.Reset()
assert.NoError(t, tmpl.Execute(w, struct{ Value any }{v}), "case %d (%T) %#v fails", i, v, v)
out := w.String()
truthyCount += util.Iif(out == "true:true", 1, 0)
truthyMatches := out == "true:true" || out == "false:false"
assert.True(t, truthyMatches, "case %d (%T) %#v fail: %s", i, v, v, out)
}
assert.True(t, truthyCount != 0 && truthyCount != len(cases))
}
func TestTemplateEscape(t *testing.T) {
execTmpl := func(code string) string {
tmpl := template.New("test")
tmpl.Funcs(template.FuncMap{"QueryBuild": QueryBuild, "HTMLFormat": htmlFormat})
template.Must(tmpl.Parse(code))
w := &strings.Builder{}
assert.NoError(t, tmpl.Execute(w, nil))
return w.String()
}
t.Run("Golang URL Escape", func(t *testing.T) {
// Golang template considers "href", "*src*", "*uri*", "*url*" (and more) ... attributes as contentTypeURL and does auto-escaping
actual := execTmpl(`<a href="?a={{"%"}}"></a>`)
assert.Equal(t, `<a href="?a=%25"></a>`, actual)
actual = execTmpl(`<a data-xxx-url="?a={{"%"}}"></a>`)
assert.Equal(t, `<a data-xxx-url="?a=%25"></a>`, actual)
})
t.Run("Golang URL No-escape", func(t *testing.T) {
// non-URL content isn't auto-escaped
actual := execTmpl(`<a data-link="?a={{"%"}}"></a>`)
assert.Equal(t, `<a data-link="?a=%"></a>`, actual)
})
t.Run("QueryBuild", func(t *testing.T) {
actual := execTmpl(`<a href="{{QueryBuild "?" "a" "%"}}"></a>`)
assert.Equal(t, `<a href="?a=%25"></a>`, actual)
actual = execTmpl(`<a href="?{{QueryBuild "a" "%"}}"></a>`)
assert.Equal(t, `<a href="?a=%25"></a>`, actual)
})
t.Run("HTMLFormat", func(t *testing.T) {
actual := execTmpl("{{HTMLFormat `<a k=\"%s\">%s</a>` `\"` `<>`}}")
assert.Equal(t, `<a k="""><></a>`, actual)
})
}
func TestQueryBuild(t *testing.T) {
t.Run("construct", func(t *testing.T) {
assert.Equal(t, "", string(QueryBuild()))
assert.Equal(t, "", string(QueryBuild("a", nil, "b", false, "c", 0, "d", "")))
assert.Equal(t, "a=1&b=true", string(QueryBuild("a", 1, "b", "true")))
// path with query parameters
assert.Equal(t, "/?k=1", string(QueryBuild("/", "k", 1)))
assert.Equal(t, "/", string(QueryBuild("/?k=a", "k", 0)))
// no path but question mark with query parameters
assert.Equal(t, "?k=1", string(QueryBuild("?", "k", 1)))
assert.Equal(t, "?", string(QueryBuild("?", "k", 0)))
assert.Equal(t, "path?k=1", string(QueryBuild("path?", "k", 1)))
assert.Equal(t, "path", string(QueryBuild("path?", "k", 0)))
// only query parameters
assert.Equal(t, "&k=1", string(QueryBuild("&", "k", 1)))
assert.Equal(t, "", string(QueryBuild("&", "k", 0)))
assert.Equal(t, "", string(QueryBuild("&k=a", "k", 0)))
assert.Equal(t, "", string(QueryBuild("k=a&", "k", 0)))
assert.Equal(t, "a=1&b=2", string(QueryBuild("a=1", "b", 2)))
assert.Equal(t, "&a=1&b=2", string(QueryBuild("&a=1", "b", 2)))
assert.Equal(t, "a=1&b=2&", string(QueryBuild("a=1&", "b", 2)))
})
t.Run("replace", func(t *testing.T) {
assert.Equal(t, "a=1&c=d&e=f", string(QueryBuild("a=b&c=d&e=f", "a", 1)))
assert.Equal(t, "a=b&c=1&e=f", string(QueryBuild("a=b&c=d&e=f", "c", 1)))
assert.Equal(t, "a=b&c=d&e=1", string(QueryBuild("a=b&c=d&e=f", "e", 1)))
assert.Equal(t, "a=b&c=d&e=f&k=1", string(QueryBuild("a=b&c=d&e=f", "k", 1)))
})
t.Run("replace-&", func(t *testing.T) {
assert.Equal(t, "&a=1&c=d&e=f", string(QueryBuild("&a=b&c=d&e=f", "a", 1)))
assert.Equal(t, "&a=b&c=1&e=f", string(QueryBuild("&a=b&c=d&e=f", "c", 1)))
assert.Equal(t, "&a=b&c=d&e=1", string(QueryBuild("&a=b&c=d&e=f", "e", 1)))
assert.Equal(t, "&a=b&c=d&e=f&k=1", string(QueryBuild("&a=b&c=d&e=f", "k", 1)))
})
t.Run("delete", func(t *testing.T) {
assert.Equal(t, "c=d&e=f", string(QueryBuild("a=b&c=d&e=f", "a", "")))
assert.Equal(t, "a=b&e=f", string(QueryBuild("a=b&c=d&e=f", "c", "")))
assert.Equal(t, "a=b&c=d", string(QueryBuild("a=b&c=d&e=f", "e", "")))
assert.Equal(t, "a=b&c=d&e=f", string(QueryBuild("a=b&c=d&e=f", "k", "")))
})
t.Run("delete-&", func(t *testing.T) {
assert.Equal(t, "&c=d&e=f", string(QueryBuild("&a=b&c=d&e=f", "a", "")))
assert.Equal(t, "&a=b&e=f", string(QueryBuild("&a=b&c=d&e=f", "c", "")))
assert.Equal(t, "&a=b&c=d", string(QueryBuild("&a=b&c=d&e=f", "e", "")))
assert.Equal(t, "&a=b&c=d&e=f", string(QueryBuild("&a=b&c=d&e=f", "k", "")))
})
}
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