3 files changed, 90 insertions, 0 deletions
diff --git a/vendor/github.com/mtibben/percent/LICENSE b/vendor/github.com/mtibben/percent/LICENSE
new file mode 100644
index 0000000..4bad1f9
--- /dev/null
+++ b/vendor/github.com/mtibben/percent/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2020 Michael Tibben
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/vendor/github.com/mtibben/percent/README.md b/vendor/github.com/mtibben/percent/README.md
new file mode 100644
index 0000000..4e85b56
--- /dev/null
+++ b/vendor/github.com/mtibben/percent/README.md
@@ -0,0 +1,5 @@
+# Percent
+
+Package percent escapes strings using [percent-encoding](https://en.wikipedia.org/wiki/Percent-encoding)
+
+[Docs](https://pkg.go.dev/github.com/mtibben/percent?tab=doc)
diff --git a/vendor/github.com/mtibben/percent/percent.go b/vendor/github.com/mtibben/percent/percent.go
new file mode 100644
index 0000000..565222e
--- /dev/null
+++ b/vendor/github.com/mtibben/percent/percent.go
@@ -0,0 +1,64 @@
+// Package percent escapes strings using percent-encoding
+package percent
+
+import (
+	"strings"
+)
+
+const upperhex = "0123456789ABCDEF"
+
+func unhex(c byte) byte {
+	switch {
+	case '0' <= c && c <= '9':
+		return c - '0'
+	case 'a' <= c && c <= 'f':
+		return c - 'a' + 10
+	case 'A' <= c && c <= 'F':
+		return c - 'A' + 10
+	}
+	return 0
+}
+
+func ishex(c byte) bool {
+	switch {
+	case '0' <= c && c <= '9':
+		return true
+	case 'a' <= c && c <= 'f':
+		return true
+	case 'A' <= c && c <= 'F':
+		return true
+	}
+	return false
+}
+
+// Encode escapes the string using percent-encoding, converting the runes found in charsToEncode with hex-encoded %AB sequences
+func Encode(s string, charsToEncode string) string {
+	var t strings.Builder
+	for _, c := range s {
+		if strings.IndexRune(charsToEncode, c) != -1 || c == '%' {
+			for _, b := range []byte(string(c)) {
+				t.WriteByte('%')
+				t.WriteByte(upperhex[b>>4])
+				t.WriteByte(upperhex[b&15])
+			}
+		} else {
+			t.WriteRune(c)
+		}
+	}
+	return t.String()
+}
+
+// Decode does the inverse transformation of Encode, converting each 3-byte encoded substring of the form "%AB" into the hex-decoded byte 0xAB
+func Decode(s string) string {
+	var t []byte
+	for i := 0; i < len(s); i++ {
+		// check next 2 chars are valid
+		if s[i] == '%' && i+2 < len(s) && ishex(s[i+1]) && ishex(s[i+2]) {
+			t = append(t, (unhex(s[i+1])<<4 | unhex(s[i+2])))
+			i += 2
+		} else {
+			t = append(t, s[i])
+		}
+	}
+	return string(t)
+}