der_cert.cc

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/*
BSD 3-Clause License
 
Copyright (c) 2022, Stable Cloud Computing, Inc.
 
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
 
1. Redistributions of source code must retain the above copyright notice, this
   list of conditions and the following disclaimer.
 
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   this list of conditions and the following disclaimer in the documentation
   and/or other materials provided with the distribution.
 
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   this software without specific prior written permission.
 
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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*/
#include <crypto/der.h>
#include <gtest/gtest.h>
#include <string>
#include <fstream>
#include <memory>
#include <sstream>
#include <cstdlib>
 
using std::cout;
using std::endl;
using std::string;
using std::ifstream;
using std::shared_ptr;
using std::stringstream;
using scc::crypto::DerDocument;
using scc::crypto::PemDocument;
 
struct DerCertTest : public testing::Test
{
    string reldir;
 
    DerCertTest()
    {
        // detect the bazel workspace environment, and create a relative path to the data files
        auto sd = getenv("TEST_SRCDIR");
        auto wd = getenv("TEST_WORKSPACE");
 
        stringstream dir;
 
        if (sd)
        {
            dir << sd << "/" << wd << "/crypto/unittest/openssl/";
        }
        else
        {
            dir << "openssl/";
        }
 
        reldir = dir.str();
    }
 
    static shared_ptr<PemDocument> pem_doc()
    {
        shared_ptr<PemDocument> ret(new PemDocument);
        return ret;
    }
 
    static shared_ptr<DerDocument> der_doc()
    {
        shared_ptr<DerDocument> ret(new DerDocument);
        return ret;
    }
 
    void parse(shared_ptr<PemDocument> doc, const string& name)
    {
        string infile = reldir+name;
        cout << "opening " << infile << endl;
        ifstream f(infile);
        ASSERT_TRUE(f.is_open());
        ASSERT_NO_THROW(doc->parse(f));
        cout << "***** PEM " << infile << " label=" << doc->label() << " chars=" << doc->chars_per_line() << ":" << endl;
        cout << *doc << endl;
    }
 
    void parse(shared_ptr<DerDocument> doc, const string& name)
    {
        string infile = reldir+name;
        cout << "opening " << infile << endl;
        ifstream f(infile);
        ASSERT_TRUE(f.is_open());
        ASSERT_NO_THROW(doc->parse(f));
        cout << "***** DER " << infile << ":" << endl;
        cout << *doc << endl;
    }
};
 
TEST_F(DerCertTest, rsapriv)
{
    auto pem = pem_doc();
    parse(pem, "rsapriv.pem");  
    auto der = der_doc();
    parse(der, "rsapriv.crt");
    ASSERT_TRUE(pem->equal(*der));
}
 
TEST_F(DerCertTest, rsapub)
{
    auto pem = pem_doc();
    parse(pem, "rsapub.pem");   
    auto der = der_doc();
    parse(der, "rsapub.crt");
    ASSERT_TRUE(pem->equal(*der));
}
 
TEST_F(DerCertTest, rsacert)
{
    auto pem = pem_doc();
    parse(pem, "rsacert.pem");  
    auto der = der_doc();
    parse(der, "rsacert.crt");
    ASSERT_TRUE(pem->equal(*der));
}
 
TEST_F(DerCertTest, ecpriv)
{
    auto pem = pem_doc();
    parse(pem, "ecpriv.pem");   
}
 
TEST_F(DerCertTest, ecpub)
{
    auto pem = pem_doc();
    parse(pem, "ecpub.pem");    
}
 
TEST_F(DerCertTest, eccert)
{
    auto pem = pem_doc();
    parse(pem, "eccert.pem");   
}
 
TEST_F(DerCertTest, rsacert_dumptest)
{
    auto pem = pem_doc();
    parse(pem, "rsacert.pem");  
    stringstream outs;
    pem->dump(outs);
    cout << "**** NEW CERT:" << endl;
    cout << outs.str() << endl;
    // now read a new doc
    auto newpem = pem_doc();
    ASSERT_NO_THROW(newpem->parse(outs));
    ASSERT_EQ(pem->chars_per_line(), newpem->chars_per_line());
    ASSERT_EQ(pem->label(), newpem->label());
    ASSERT_TRUE(pem->equal(*newpem));
}