From 1a25234f20b6c634024196143677c14e8142576c Mon Sep 17 00:00:00 2001
From: Vincent Sanders <vince@kyllikki.org>
Date: Mon, 24 Feb 2020 18:55:50 +0000
Subject: implement browser_window_show_certificates

---
 desktop/browser_window.c | 69 +++++++++++++++++++++++++++++++++++++++++++++---
 1 file changed, 65 insertions(+), 4 deletions(-)

(limited to 'desktop/browser_window.c')

diff --git a/desktop/browser_window.c b/desktop/browser_window.c
index e12885263..f705ce901 100644
--- a/desktop/browser_window.c
+++ b/desktop/browser_window.c
@@ -35,6 +35,7 @@
 #include <strings.h>
 #include <math.h>
 #include <nsutils/time.h>
+#include <nsutils/base64.h>
 
 #include "utils/corestrings.h"
 #include "utils/log.h"
@@ -4764,9 +4765,69 @@ nserror browser_window_show_cookies(
 }
 
 /* Exported interface, documented in browser_window.h */
-nserror browser_window_show_certificates(
-		const struct browser_window *bw)
+nserror browser_window_show_certificates(const struct browser_window *bw)
 {
-	/** \todo Implement show certificates */
-	return NSERROR_OK;
+	nserror res;
+	nsurl *url;
+	size_t allocsize;
+	size_t urlstrlen;
+	uint8_t *urlstr;
+	size_t depth;
+
+	if (bw->current_cert_chain == NULL) {
+		return NSERROR_NOT_FOUND;
+	}
+
+	allocsize = 20;
+	for (depth = 0; depth < bw->current_cert_chain->depth; depth++) {
+		allocsize += 7; /* allow for &cert= */
+		allocsize += 4 * ((bw->current_cert_chain->certs[depth].der_length + 2) / 3);
+	}
+
+	urlstr = malloc(allocsize);
+	if (urlstr == NULL) {
+		return NSERROR_NOMEM;
+	}
+
+	urlstrlen = snprintf((char *)urlstr, allocsize, "about:certificate");
+	for (depth = 0; depth < bw->current_cert_chain->depth; depth++) {
+		nsuerror nsures;
+		size_t output_length;
+
+		urlstrlen += snprintf((char *)urlstr + urlstrlen,
+				      allocsize - urlstrlen,
+				      "&cert=");
+
+		output_length = allocsize - urlstrlen;
+		nsures = nsu_base64_encode_url(
+			bw->current_cert_chain->certs[depth].der,
+			bw->current_cert_chain->certs[depth].der_length,
+			(uint8_t *)urlstr + urlstrlen,
+			&output_length);
+		if (nsures != NSUERROR_OK) {
+			free(urlstr);
+			return (nserror)nsures;
+		}
+		urlstrlen += output_length;
+	}
+	urlstr[17] = '?';
+	urlstr[urlstrlen] = 0;
+
+	res = nsurl_create((const char *)urlstr, &url);
+	free(urlstr);
+	if (res != NSERROR_OK) {
+		return res;
+	}
+
+	res = browser_window_create(BW_CREATE_HISTORY |
+				    BW_CREATE_FOREGROUND |
+				    BW_CREATE_TAB,
+				    url,
+				    NULL,
+				    bw,
+				    NULL);
+
+	nsurl_unref(url);
+
+	return res;
 }
-- 
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