Set an IMAP TLS Client Certificate from PEM

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Demonstrates the Chilkat Imap.SetSslClientCertPem method, which supplies a TLS client certificate and private key from PEM. The first argument may be the PEM text itself or a path to a PEM file (Chilkat detects which), and the second is the password used when the private key is encrypted. Call it before connecting.

Note: The certificate path is relative to the application's current working directory. Supply the path to your own certificate file.

const std = @import("std");
const chilkat = @import("chilkat");

pub fn main(init: std.process.Init) !void {
    const alloc = init.arena.allocator();

    // Demonstrates the Imap.SetSslClientCertPem method, which supplies a TLS client certificate
    // and private key from PEM.  The 1st argument is the PEM text or a PEM file path, and the 2nd
    // is the password when the private key is encrypted.  It must be called before connecting.

    const imap = try chilkat.Imap.init();
    defer imap.deinit();

    imap.setSsl(true);
    imap.setPort(993);

    // The PEM private-key password is not hard-coded in source.  Insert code here to obtain it from an
    // interactive prompt, environment variable, or a secrets vault.
    const pem_password: [:0]const u8 = "";

    // Provide the PEM client certificate BEFORE connecting.  The first argument may be a PEM file
    // path or the PEM text itself.
    imap.setSslClientCertPem("qa_data/client.pem", pem_password) catch {
        std.debug.print("{s}\n", .{try imap.getLastErrorText(alloc)});
        return;
    };

    imap.connect("imap.example.com") catch {
        std.debug.print("{s}\n", .{try imap.getLastErrorText(alloc)});
        return;
    };

    imap.login("user@example.com", "myPassword") catch {
        std.debug.print("{s}\n", .{try imap.getLastErrorText(alloc)});
        return;
    };

    imap.disconnect() catch {
        std.debug.print("{s}\n", .{try imap.getLastErrorText(alloc)});
        return;
    };
}