1 files changed, 124 insertions, 0 deletions
diff --git a/src/net/cookie_jar.cc b/src/net/cookie_jar.cc
new file mode 100644
index 0000000..1328511
--- /dev/null
+++ b/src/net/cookie_jar.cc
@@ -0,0 +1,124 @@
+/*
+ * Ricochet - A minimalist CLI web browser for fast, distraction-free navigation.
+ * Copyright (C) 2026  Richard Qin
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "ricochet/net/cookie_jar.hh"
+#include "ricochet/net/config.hh"
+
+#include <fstream>
+
+namespace ricochet::net {
+
+void load_cookies_from_file( CookieJar& jar )
+{
+  std::ifstream file( get_config_path( "cookies.txt" ) );
+  if ( !file.is_open() ) {
+    return;
+  }
+
+  std::string line;
+  while ( std::getline( file, line ) ) {
+    const std::size_t t1 = line.find( '\t' );
+    if ( t1 == std::string::npos ) {
+      continue;
+    }
+    const std::size_t t2 = line.find( '\t', t1 + 1 );
+    if ( t2 != std::string::npos ) {
+      jar[line.substr( 0, t1 )][line.substr( t1 + 1, t2 - t1 - 1 )] = line.substr( t2 + 1 );
+    }
+  }
+}
+
+CookieJar& get_cookie_jar()
+{
+  static CookieJar jar;
+  static bool initialized = false;
+  if ( !initialized ) {
+    load_cookies_from_file( jar );
+    initialized = true;
+  }
+  return jar;
+}
+
+void save_cookies_to_file( const CookieJar& jar )
+{
+  std::ofstream file( get_config_path( "cookies.txt" ), std::ios::trunc );
+  if ( !file.is_open() ) {
+    return;
+  }
+
+  for ( const auto& [domain, cookies] : jar ) {
+    for ( const auto& [k, v] : cookies ) {
+      file << domain << '\t' << k << '\t' << v << '\n';
+    }
+  }
+}
+
+void update_cookies( const std::string& raw_response, // NOLINT(bugprone-easily-swappable-parameters)
+                     const std::string& host )
+{
+  std::size_t pos = 0;
+  bool updated = false;
+  while ( ( pos = raw_response.find( "Set-Cookie: ", pos ) ) != std::string::npos ) {
+    pos += 12;
+    const std::size_t end_pos = raw_response.find( '\r', pos );
+    if ( end_pos == std::string::npos ) {
+      break;
+    }
+
+    const std::string cookie_line = raw_response.substr( pos, end_pos - pos );
+    const std::size_t semi_pos = cookie_line.find( ';' );
+    const std::string cookie_pair
+      = ( semi_pos == std::string::npos ) ? cookie_line : cookie_line.substr( 0, semi_pos );
+
+    const std::size_t eq_pos = cookie_pair.find( '=' );
+    if ( eq_pos != std::string::npos ) {
+      const std::string key = cookie_pair.substr( 0, eq_pos );
+      const std::string val = cookie_pair.substr( eq_pos + 1 );
+      get_cookie_jar()[host][key] = val;
+      updated = true;
+    }
+  }
+  if ( updated ) {
+    save_cookies_to_file( get_cookie_jar() );
+  }
+}
+
+std::string build_cookie_header( const std::string& host )
+{
+  const auto& jar = get_cookie_jar();
+  auto it = jar.find( host );
+  if ( it == jar.end() || it->second.empty() ) {
+    return "";
+  }
+
+  std::string header = "Cookie: ";
+  bool first = true;
+  for ( const auto& [k, v] : it->second ) {
+    if ( !first ) {
+      header += "; ";
+    }
+    header += k;
+    header += "=";
+    header += v;
+    first = false;
+  }
+  header += "\r\n";
+  return header;
+}
+
+} // namespace ricochet::net