From ff05d62013906f3086b452bfeda3e0d5b9b7a541 Mon Sep 17 00:00:00 2001
From: tjpcc <tjp@ctrl-c.club>
Date: Mon, 9 Jan 2023 16:40:24 -0700
Subject: Initial commit.

some basics:
 - minimal README
 - some TODOs
 - server and request handler framework
 - contribs: file serving, request logging
 - server examples
 - CI setup
---
 gemini/request.go | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 50 insertions(+)
 create mode 100644 gemini/request.go

(limited to 'gemini/request.go')

diff --git a/gemini/request.go b/gemini/request.go
new file mode 100644
index 0000000..248ce67
--- /dev/null
+++ b/gemini/request.go
@@ -0,0 +1,50 @@
+package gemini
+
+import (
+	"bufio"
+	"crypto/tls"
+	"errors"
+	"io"
+	"net/url"
+)
+
+// InvalidRequestLineEnding indicates that a gemini request didn't end with "\r\n".
+var InvalidRequestLineEnding = errors.New("invalid request line ending")
+
+// Request represents a request over the gemini protocol.
+type Request struct {
+	*url.URL
+
+	TLSState *tls.ConnectionState
+}
+
+// ParseRequest parses a single gemini request from a reader.
+func ParseRequest(rdr io.Reader) (*Request, error) {
+	line, err := bufio.NewReader(rdr).ReadString('\n')
+	if err != io.EOF && err != nil {
+		return nil, err
+	}
+
+	if len(line) < 2 || line[len(line)-2:] != "\r\n" {
+		return nil, InvalidRequestLineEnding
+	}
+
+	u, err := url.Parse(line[:len(line)-2])
+	if err != nil {
+		return nil, err
+	}
+
+	if u.Scheme == "" {
+		u.Scheme = "gemini"
+	}
+
+	return &Request{URL: u}, nil
+}
+
+// UnescapedQuery performs %XX unescaping on the URL query segment.
+//
+// Like URL.Query(), it silently drops malformed %-encoded sequences.
+func (req Request) UnescapedQuery() string {
+	unescaped, _ := url.QueryUnescape(req.RawQuery)
+	return unescaped
+}
-- 
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