# Copyright 2013-2023 Lawrence Livermore National Security, LLC and other
# Spack Project Developers. See the top-level COPYRIGHT file for details.
#
# SPDX-License-Identifier: (Apache-2.0 OR MIT)

import os
import re

import llnl.util.tty as tty

from spack.package import *


class Openssl(Package):  # Uses Fake Autotools, should subclass Package
    """OpenSSL is an open source project that provides a robust,
    commercial-grade, and full-featured toolkit for the Transport
    Layer Security (TLS) and Secure Sockets Layer (SSL) protocols.
    It is also a general-purpose cryptography library."""

    homepage = "https://www.openssl.org"

    # URL must remain http:// so Spack can bootstrap curl
    url = "http://www.openssl.org/source/openssl-1.1.1d.tar.gz"
    list_url = "https://www.openssl.org/source/old/"
    list_depth = 1

    maintainers("AlexanderRichert-NOAA")

    tags = ["core-packages", "windows"]

    executables = ["openssl"]

    license("Apache-2.0")

    version("3.1.3", sha256="f0316a2ebd89e7f2352976445458689f80302093788c466692fb2a188b2eacf6")
    version("3.0.11", sha256="b3425d3bb4a2218d0697eb41f7fc0cdede016ed19ca49d168b78e8d947887f55")

    version(
        "3.1.2",
        sha256="a0ce69b8b97ea6a35b96875235aa453b966ba3cba8af2de23657d8b6767d6539",
        deprecated=True,
    )
    version(
        "3.1.1",
        sha256="b3aa61334233b852b63ddb048df181177c2c659eb9d4376008118f9c08d07674",
        deprecated=True,
    )
    version(
        "3.1.0",
        sha256="aaa925ad9828745c4cad9d9efeb273deca820f2cdcf2c3ac7d7c1212b7c497b4",
        deprecated=True,
    )
    version(
        "3.0.10",
        sha256="1761d4f5b13a1028b9b6f3d4b8e17feb0cedc9370f6afe61d7193d2cdce83323",
        deprecated=True,
    )
    version(
        "3.0.9",
        sha256="eb1ab04781474360f77c318ab89d8c5a03abc38e63d65a603cabbf1b00a1dc90",
        deprecated=True,
    )
    version(
        "3.0.8",
        sha256="6c13d2bf38fdf31eac3ce2a347073673f5d63263398f1f69d0df4a41253e4b3e",
        deprecated=True,
    )
    version(
        "3.0.7",
        sha256="83049d042a260e696f62406ac5c08bf706fd84383f945cf21bd61e9ed95c396e",
        deprecated=True,
    )
    version(
        "3.0.5",
        sha256="aa7d8d9bef71ad6525c55ba11e5f4397889ce49c2c9349dcea6d3e4f0b024a7a",
        deprecated=True,
    )
    version(
        "3.0.4",
        sha256="2831843e9a668a0ab478e7020ad63d2d65e51f72977472dc73efcefbafc0c00f",
        deprecated=True,
    )
    version(
        "3.0.2",
        sha256="98e91ccead4d4756ae3c9cde5e09191a8e586d9f4d50838e7ec09d6411dfdb63",
        deprecated=True,
    )
    version(
        "3.0.1",
        sha256="c311ad853353bce796edad01a862c50a8a587f62e7e2100ef465ab53ec9b06d1",
        deprecated=True,
    )
    version(
        "3.0.0",
        sha256="59eedfcb46c25214c9bd37ed6078297b4df01d012267fe9e9eee31f61bc70536",
        deprecated=True,
    )
    version(
        "1.1.1w",
        sha256="cf3098950cb4d853ad95c0841f1f9c6d3dc102dccfcacd521d93925208b76ac8",
        deprecated=True,
    )
    version(
        "1.1.1v",
        sha256="d6697e2871e77238460402e9362d47d18382b15ef9f246aba6c7bd780d38a6b0",
        deprecated=True,
    )
    version(
        "1.1.1u",
        sha256="e2f8d84b523eecd06c7be7626830370300fbcc15386bf5142d72758f6963ebc6",
        deprecated=True,
    )
    version(
        "1.1.1t",
        sha256="8dee9b24bdb1dcbf0c3d1e9b02fb8f6bf22165e807f45adeb7c9677536859d3b",
        deprecated=True,
    )
    version(
        "1.1.1s",
        sha256="c5ac01e760ee6ff0dab61d6b2bbd30146724d063eb322180c6f18a6f74e4b6aa",
        deprecated=True,
    )
    version(
        "1.1.1q",
        sha256="d7939ce614029cdff0b6c20f0e2e5703158a489a72b2507b8bd51bf8c8fd10ca",
        deprecated=True,
    )
    version(
        "1.1.1p",
        sha256="bf61b62aaa66c7c7639942a94de4c9ae8280c08f17d4eac2e44644d9fc8ace6f",
        deprecated=True,
    )
    version(
        "1.1.1o",
        sha256="9384a2b0570dd80358841464677115df785edb941c71211f75076d72fe6b438f",
        deprecated=True,
    )
    version(
        "1.1.1n",
        sha256="40dceb51a4f6a5275bde0e6bf20ef4b91bfc32ed57c0552e2e8e15463372b17a",
        deprecated=True,
    )
    version(
        "1.1.1m",
        sha256="f89199be8b23ca45fc7cb9f1d8d3ee67312318286ad030f5316aca6462db6c96",
        deprecated=True,
    )
    version(
        "1.1.1l",
        sha256="0b7a3e5e59c34827fe0c3a74b7ec8baef302b98fa80088d7f9153aa16fa76bd1",
        deprecated=True,
    )
    version(
        "1.1.1k",
        sha256="892a0875b9872acd04a9fde79b1f943075d5ea162415de3047c327df33fbaee5",
        deprecated=True,
    )
    version(
        "1.1.1j",
        sha256="aaf2fcb575cdf6491b98ab4829abf78a3dec8402b8b81efc8f23c00d443981bf",
        deprecated=True,
    )
    version(
        "1.1.1i",
        sha256="e8be6a35fe41d10603c3cc635e93289ed00bf34b79671a3a4de64fcee00d5242",
        deprecated=True,
    )
    version(
        "1.1.1h",
        sha256="5c9ca8774bd7b03e5784f26ae9e9e6d749c9da2438545077e6b3d755a06595d9",
        deprecated=True,
    )
    version(
        "1.1.1g",
        sha256="ddb04774f1e32f0c49751e21b67216ac87852ceb056b75209af2443400636d46",
        deprecated=True,
    )
    version(
        "1.1.1f",
        sha256="186c6bfe6ecfba7a5b48c47f8a1673d0f3b0e5ba2e25602dd23b629975da3f35",
        deprecated=True,
    )
    version(
        "1.1.1e",
        sha256="694f61ac11cb51c9bf73f54e771ff6022b0327a43bbdfa1b2f19de1662a6dcbe",
        deprecated=True,
    )
    version(
        "1.1.1d",
        sha256="1e3a91bc1f9dfce01af26026f856e064eab4c8ee0a8f457b5ae30b40b8b711f2",
        deprecated=True,
    )
    version(
        "1.1.1c",
        sha256="f6fb3079ad15076154eda9413fed42877d668e7069d9b87396d0804fdb3f4c90",
        deprecated=True,
    )
    version(
        "1.1.1b",
        sha256="5c557b023230413dfb0756f3137a13e6d726838ccd1430888ad15bfb2b43ea4b",
        deprecated=True,
    )
    version(
        "1.1.1a",
        sha256="fc20130f8b7cbd2fb918b2f14e2f429e109c31ddd0fb38fc5d71d9ffed3f9f41",
        deprecated=True,
    )
    version(
        "1.1.1",
        sha256="2836875a0f89c03d0fdf483941512613a50cfb421d6fd94b9f41d7279d586a3d",
        deprecated=True,
    )
    version(
        "1.1.0l",
        sha256="74a2f756c64fd7386a29184dc0344f4831192d61dc2481a93a4c5dd727f41148",
        deprecated=True,
    )
    version(
        "1.1.0k",
        sha256="efa4965f4f773574d6cbda1cf874dbbe455ab1c0d4f906115f867d30444470b1",
        deprecated=True,
    )
    version(
        "1.1.0j",
        sha256="31bec6c203ce1a8e93d5994f4ed304c63ccf07676118b6634edded12ad1b3246",
        deprecated=True,
    )
    version(
        "1.1.0i",
        sha256="ebbfc844a8c8cc0ea5dc10b86c9ce97f401837f3fa08c17b2cdadc118253cf99",
        deprecated=True,
    )
    version(
        "1.1.0g",
        sha256="de4d501267da39310905cb6dc8c6121f7a2cad45a7707f76df828fe1b85073af",
        deprecated=True,
    )
    version(
        "1.1.0e",
        sha256="57be8618979d80c910728cfc99369bf97b2a1abd8f366ab6ebdee8975ad3874c",
        deprecated=True,
    )
    version(
        "1.1.0d",
        sha256="7d5ebb9e89756545c156ff9c13cf2aa6214193b010a468a3bc789c3c28fe60df",
        deprecated=True,
    )
    version(
        "1.1.0c",
        sha256="fc436441a2e05752d31b4e46115eb89709a28aef96d4fe786abe92409b2fd6f5",
        deprecated=True,
    )
    version(
        "1.0.2u",
        sha256="ecd0c6ffb493dd06707d38b14bb4d8c2288bb7033735606569d8f90f89669d16",
        deprecated=True,
    )
    version(
        "1.0.2t",
        sha256="14cb464efe7ac6b54799b34456bd69558a749a4931ecfd9cf9f71d7881cac7bc",
        deprecated=True,
    )
    version(
        "1.0.2s",
        sha256="cabd5c9492825ce5bd23f3c3aeed6a97f8142f606d893df216411f07d1abab96",
        deprecated=True,
    )
    version(
        "1.0.2r",
        sha256="ae51d08bba8a83958e894946f15303ff894d75c2b8bbd44a852b64e3fe11d0d6",
        deprecated=True,
    )
    version(
        "1.0.2p",
        sha256="50a98e07b1a89eb8f6a99477f262df71c6fa7bef77df4dc83025a2845c827d00",
        deprecated=True,
    )
    version(
        "1.0.2o",
        sha256="ec3f5c9714ba0fd45cb4e087301eb1336c317e0d20b575a125050470e8089e4d",
        deprecated=True,
    )
    version(
        "1.0.2n",
        sha256="370babb75f278c39e0c50e8c4e7493bc0f18db6867478341a832a982fd15a8fe",
        deprecated=True,
    )
    version(
        "1.0.2m",
        sha256="8c6ff15ec6b319b50788f42c7abc2890c08ba5a1cdcd3810eb9092deada37b0f",
        deprecated=True,
    )
    version(
        "1.0.2k",
        sha256="6b3977c61f2aedf0f96367dcfb5c6e578cf37e7b8d913b4ecb6643c3cb88d8c0",
        deprecated=True,
    )
    version(
        "1.0.2j",
        sha256="e7aff292be21c259c6af26469c7a9b3ba26e9abaaffd325e3dccc9785256c431",
        deprecated=True,
    )
    version(
        "1.0.2i",
        sha256="9287487d11c9545b6efb287cdb70535d4e9b284dd10d51441d9b9963d000de6f",
        deprecated=True,
    )
    version(
        "1.0.2h",
        sha256="1d4007e53aad94a5b2002fe045ee7bb0b3d98f1a47f8b2bc851dcd1c74332919",
        deprecated=True,
    )
    version(
        "1.0.2g",
        sha256="b784b1b3907ce39abf4098702dade6365522a253ad1552e267a9a0e89594aa33",
        deprecated=True,
    )
    version(
        "1.0.2f",
        sha256="932b4ee4def2b434f85435d9e3e19ca8ba99ce9a065a61524b429a9d5e9b2e9c",
        deprecated=True,
    )
    version(
        "1.0.2e",
        sha256="e23ccafdb75cfcde782da0151731aa2185195ac745eea3846133f2e05c0e0bff",
        deprecated=True,
    )
    version(
        "1.0.2d",
        sha256="671c36487785628a703374c652ad2cebea45fa920ae5681515df25d9f2c9a8c8",
        deprecated=True,
    )
    version(
        "1.0.1u",
        sha256="4312b4ca1215b6f2c97007503d80db80d5157f76f8f7d3febbe6b4c56ff26739",
        deprecated=True,
    )
    version(
        "1.0.1t",
        sha256="4a6ee491a2fdb22e519c76fdc2a628bb3cec12762cd456861d207996c8a07088",
        deprecated=True,
    )
    version(
        "1.0.1r",
        sha256="784bd8d355ed01ce98b812f873f8b2313da61df7c7b5677fcf2e57b0863a3346",
        deprecated=True,
    )
    version(
        "1.0.1h",
        sha256="9d1c8a9836aa63e2c6adb684186cbd4371c9e9dcc01d6e3bb447abf2d4d3d093",
        deprecated=True,
    )
    version(
        "1.0.1e",
        sha256="f74f15e8c8ff11aa3d5bb5f276d202ec18d7246e95f961db76054199c69c1ae3",
        deprecated=True,
    )

    # On Cray DVS mounts, we can't make symlinks to /etc/ssl/openssl.cnf,
    # either due to a bug or because DVS is not intended to be POSIX compliant.
    # Therefore, stick to system agnostic certs=mozilla.
    variant(
        "certs",
        default="mozilla",
        values=("mozilla", "system", "none"),
        multi=False,
        description=(
            "Use certificates from the ca-certificates-mozilla "
            "package, symlink system certificates, or use none, "
            "respectively. The default is `mozilla`, since it is "
            "system agnostic. Instead of picking certs=system, "
            "one can mark openssl as an external package, to "
            "avoid compiling openssl entirely."
        ),
    )
    variant("docs", default=False, description="Install docs and manpages")
    variant("shared", default=True, description="Build shared library version")
    with when("platform=windows"):
        variant("dynamic", default=False, description="Link with MSVC's dynamic runtime library")

    depends_on("zlib-api")
    depends_on("perl@5.14.0:", type=("build", "test"))
    depends_on("ca-certificates-mozilla", type="build", when="certs=mozilla")
    depends_on("nasm", when="platform=windows")

    depends_on("gmake", type="build", when="platform=linux")
    depends_on("gmake", type="build", when="platform=cray")
    depends_on("gmake", type="build", when="platform=darwin")

    patch(
        "https://github.com/openssl/openssl/commit/f9e578e720bb35228948564192adbe3bc503d5fb.patch?full_index=1",
        sha256="3fdcf2d1e47c34f3a012f23306322c5a35cad55b180c9b6fb34537b55884645c",
        when="@1.1.1q",
    )

    @classmethod
    def determine_version(cls, exe):
        output = Executable(exe)("version", output=str, error=str)
        match = re.search(r"OpenSSL.(\S+)*", output)
        return match.group(1) if match else None

    @property
    def libs(self):
        return find_libraries(
            ["libssl", "libcrypto"],
            root=self.prefix,
            recursive=True,
            shared=self.spec.variants["shared"].value,
        )

    def handle_fetch_error(self, error):
        tty.warn(
            "Fetching OpenSSL failed. This may indicate that OpenSSL has "
            "been updated, and the version in your instance of Spack is "
            "insecure. Consider updating to the latest OpenSSL version."
        )

    def install(self, spec, prefix):
        # OpenSSL uses these variables in its Makefile or config scripts. If any of them
        # happen to be set in the environment, then this will override what is set in
        # the script or Makefile, leading to build errors.
        for v in ("APPS", "BUILD", "RELEASE", "MACHINE", "SYSTEM"):
            env.pop(v, None)

        if str(spec.target.family) in ("x86_64", "ppc64"):
            # This needs to be done for all 64-bit architectures (except Linux,
            # where it happens automatically?)
            env["KERNEL_BITS"] = "64"

        options = ["zlib"]
        if spec.satisfies("@1.0"):
            options.append("no-krb5")
        # clang does not support the .arch directive in assembly files.
        if "clang" in self.compiler.cc and spec.target.family == "aarch64":
            options.append("no-asm")
        elif "%nvhpc" in spec:
            # Last tested on nvidia@22.3 for x86_64:
            # nvhpc segfaults NVC++-F-0000-Internal compiler error.
            # gen_llvm_expr(): unknown opcode       0  (crypto/rsa/rsa_oaep.c: 248)
            options.append("no-asm")
        elif spec.satisfies("@3: %oneapi"):
            # Last tested on oneapi@2023.1.0 for x86_64:
            # crypto/md5/md5-x86_64.s:684:31: error: expected string
            options.append("no-asm")

        # The default glibc provided by CentOS 7 does not provide proper
        # atomic support when using the NVIDIA compilers
        if self.spec.satisfies("%nvhpc os=centos7"):
            options.append("-D__STDC_NO_ATOMICS__")

        # Make a flag for shared library builds
        base_args = [
            "--prefix=%s" % prefix,
            "--openssldir=%s" % join_path(prefix, "etc", "openssl"),
        ]
        if spec.satisfies("platform=windows"):
            base_args.extend(
                ['CC="%s"' % os.environ.get("CC"), 'CXX="%s"' % os.environ.get("CXX"), "VC-WIN64A"]
            )
        else:
            base_args.extend(
                [
                    "-I{0}".format(self.spec["zlib-api"].prefix.include),
                    "-L{0}".format(self.spec["zlib-api"].prefix.lib),
                ]
            )
            base_args.extend(options)

        if spec.satisfies("~shared"):
            base_args.append("no-shared")
        else:
            base_args.append("shared")

        # On Windows, we use perl for configuration and build through MSVC
        # nmake.
        if spec.satisfies("platform=windows"):
            # The configure executable requires that paths with spaces
            # on Windows be wrapped in quotes
            Executable("perl")("Configure", *base_args, ignore_quotes=True)
        else:
            Executable("./config")(*base_args)

        # Remove non-standard compiler options if present. These options are
        # present e.g. on Darwin. They are non-standard, i.e. most compilers
        # (e.g. gcc) will not accept them.
        filter_file(r"-arch x86_64", "", "Makefile")

        if spec.satisfies("platform=windows"):
            host_make = nmake
        else:
            host_make = make

        host_make()

        if self.run_tests:
            host_make("test", parallel=False)  # 'VERBOSE=1'

        install_tgt = "install" if self.spec.satisfies("+docs") else "install_sw"

        # See https://github.com/openssl/openssl/issues/7466#issuecomment-432148137
        host_make(install_tgt, parallel=False)

    @run_after("install")
    def link_system_certs(self):
        if self.spec.variants["certs"].value != "system":
            return

        system_dirs = [
            # CentOS, Fedora, RHEL
            "/etc/pki/tls",
            # Ubuntu
            "/usr/lib/ssl",
            # OpenSUSE
            "/etc/ssl",
        ]

        pkg_dir = join_path(self.prefix, "etc", "openssl")

        mkdirp(pkg_dir)

        for directory in system_dirs:
            # Link configuration file
            sys_conf = join_path(directory, "openssl.cnf")
            pkg_conf = join_path(pkg_dir, "openssl.cnf")
            if os.path.exists(sys_conf) and not os.path.exists(pkg_conf):
                os.symlink(sys_conf, pkg_conf)

            sys_cert = join_path(directory, "cert.pem")
            pkg_cert = join_path(pkg_dir, "cert.pem")
            # If a bundle exists, use it. This is the preferred way on Fedora,
            # where the certs directory does not work.
            if os.path.exists(sys_cert) and not os.path.exists(pkg_cert):
                os.symlink(sys_cert, pkg_cert)

            sys_certs = join_path(directory, "certs")
            pkg_certs = join_path(pkg_dir, "certs")
            # If the certs directory exists, symlink it into the package.
            # We symlink the whole directory instead of all files because
            # the directory contents might change without Spack noticing.
            if os.path.isdir(sys_certs) and not os.path.islink(pkg_certs):
                if os.path.isdir(pkg_certs):
                    os.rmdir(pkg_certs)
                os.symlink(sys_certs, pkg_certs)

    @run_after("install")
    def copy_mozilla_certs(self):
        if self.spec.variants["certs"].value != "mozilla":
            return

        pkg_dir = join_path(self.prefix, "etc", "openssl")
        mkdirp(pkg_dir)

        mozilla_pem = self.spec["ca-certificates-mozilla"].pem_path
        pkg_cert = join_path(pkg_dir, "cert.pem")
        install(mozilla_pem, pkg_cert)

    def patch(self):
        if self.spec.satisfies("%nvhpc"):
            # Remove incompatible preprocessor flags
            filter_file("-MF ", "", "Configurations/unix-Makefile.tmpl", string=True)
            filter_file(r"-MT \$\@ ", "", "Configurations/unix-Makefile.tmpl", string=True)

    def setup_build_environment(self, env):
        env.set("PERL", self.spec["perl"].prefix.bin.perl)