add certsdir option (#1642)

Signed-off-by: R4SAS <r4sas@i2pmail.org>

contrib/i2pd.conf

@@ -15,6 +15,10 @@
 ## Default: ~/.i2pd/tunnels.d or /var/lib/i2pd/tunnels.d
 # tunnelsdir = /var/lib/i2pd/tunnels.d
 
+## Path to certificates used for verifying .su3, families
+## Default: ~/.i2pd/certificates or /var/lib/i2pd/certificates
+# certsdir = /var/lib/i2pd/certificates
+
 ## Where to write pidfile (default: i2pd.pid, not used in Windows)
 # pidfile = /run/i2pd.pid
 

libi2pd/Config.cpp

@@ -37,6 +37,7 @@ namespace config {
 			("conf", value<std::string>()->default_value(""),                 "Path to main i2pd config file (default: try ~/.i2pd/i2pd.conf or /var/lib/i2pd/i2pd.conf)")
 			("tunconf", value<std::string>()->default_value(""),              "Path to config with tunnels list and options (default: try ~/.i2pd/tunnels.conf or /var/lib/i2pd/tunnels.conf)")
 			("tunnelsdir", value<std::string>()->default_value(""),           "Path to extra tunnels' configs folder (default: ~/.i2pd/tunnels.d or /var/lib/i2pd/tunnels.d")
+			("certsdir", value<std::string>()->default_value(""),             "Path to certificates used for verifying .su3, families (default: ~/.i2pd/certificates or /var/lib/i2pd/certificates")
 			("pidfile", value<std::string>()->default_value(""),              "Path to pidfile (default: ~/i2pd/i2pd.pid or /var/lib/i2pd/i2pd.pid)")
 			("log", value<std::string>()->default_value(""),                  "Logs destination: stdout, file, syslog (stdout if not set)")
 			("logfile", value<std::string>()->default_value(""),              "Path to logfile (stdout if not set, autodetect if daemon)")

libi2pd/Family.cpp

@@ -98,7 +98,14 @@ namespace data
 
 	void Families::LoadCertificates ()
 	{
+		std::string certDir;
+		std::string certsdir; i2p::config::GetOption("certsdir", certsdir);
+		if (!i2p::config::IsDefault("certsdir"))
+			certDir = certsdir + i2p::fs::dirSep + "family";
+
+		if (certDir.empty() || !i2p::fs::Exists(certDir))
 			std::string certDir = i2p::fs::DataDirPath("certificates", "family");
+
 		std::vector<std::string> files;
 		int numCertificates = 0;
 

libi2pd/Reseed.cpp

@@ -497,7 +497,14 @@ namespace data
 
 	void Reseeder::LoadCertificates ()
 	{
+		std::string certDir;
+		std::string certsdir; i2p::config::GetOption("certsdir", certsdir);
+		if (!i2p::config::IsDefault("certsdir"))
+			certDir = certsdir + i2p::fs::dirSep + "reseed";
+
+		if (certDir.empty() || !i2p::fs::Exists(certDir))
 			std::string certDir = i2p::fs::DataDirPath("certificates", "reseed");
+
 		std::vector<std::string> files;
 		int numCertificates = 0;