|
| 1 | +// This file is a part of the IncludeOS unikernel - www.includeos.org |
| 2 | +// |
| 3 | +// Copyright 2015-2017 Oslo and Akershus University College of Applied Sciences |
| 4 | +// and Alfred Bratterud |
| 5 | +// |
| 6 | +// Licensed under the Apache License, Version 2.0 (the "License"); |
| 7 | +// you may not use this file except in compliance with the License. |
| 8 | +// You may obtain a copy of the License at |
| 9 | +// |
| 10 | +// http://www.apache.org/licenses/LICENSE-2.0 |
| 11 | +// |
| 12 | +// Unless required by applicable law or agreed to in writing, software |
| 13 | +// distributed under the License is distributed on an "AS IS" BASIS, |
| 14 | +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 15 | +// See the License for the specific language governing permissions and |
| 16 | +// limitations under the License. |
| 17 | + |
| 18 | +#include <common.cxx> |
| 19 | +#include <tar> |
| 20 | +#include <sys/mman.h> |
| 21 | +#include <sys/stat.h> |
| 22 | +#include <fcntl.h> |
| 23 | +#include <unistd.h> |
| 24 | + |
| 25 | +CASE("Reading single entry tar file") |
| 26 | +{ |
| 27 | + tar::Reader r; |
| 28 | + struct stat st; |
| 29 | + int res = stat("test-single.tar", &st); |
| 30 | + EXPECT(res != -1); |
| 31 | + size_t size = st.st_size; |
| 32 | + int fd = open("test-single.tar", O_RDONLY); |
| 33 | + EXPECT_NOT(fd == -1); |
| 34 | + const uint8_t *mem = (const uint8_t *)mmap(0, size, PROT_READ, MAP_PRIVATE, fd, 0); |
| 35 | + tar::Tar tar = r.read_uncompressed(mem, size); |
| 36 | + EXPECT(tar.num_elements() == 1); |
| 37 | + auto names = tar.element_names(); |
| 38 | + EXPECT(names.size() == 1); |
| 39 | + const auto& elements = tar.elements(); |
| 40 | + EXPECT(elements.size() == 1); |
| 41 | + const auto& e = elements.at(0); |
| 42 | + EXPECT_NOT(e.is_dir()); |
| 43 | + EXPECT(e.typeflag_is_set()); |
| 44 | + EXPECT(e.typeflag() == REGTYPE); // regular file |
| 45 | + EXPECT_NOT(e.is_empty()); |
| 46 | + EXPECT(e.is_ustar()); |
| 47 | + EXPECT_NOT(e.is_tar_gz()); |
| 48 | + EXPECT(e.num_content_blocks() > 0); |
| 49 | + EXPECT(e.size() > 0); |
| 50 | + const auto& name = e.name(); |
| 51 | + EXPECT(name.find("CMakeLists.txt") != std::string::npos); |
| 52 | + EXPECT_NO_THROW(auto& only_element = tar.element("../CMakeLists.txt")); |
| 53 | + EXPECT_THROWS_AS(auto& missing_element = tar.element("not_there.txt"), tar::Tar_exception); |
| 54 | + |
| 55 | + // try to decompress a non-tar.gz element |
| 56 | + EXPECT_THROWS_AS(tar::Tar inner_tar = r.decompress(e), tar::Tar_exception); |
| 57 | + close(fd); |
| 58 | +} |
| 59 | + |
| 60 | +CASE("Reading multiple entry tar file") |
| 61 | +{ |
| 62 | + tar::Reader r; |
| 63 | + struct stat st; |
| 64 | + int res = stat("test-multiple.tar", &st); |
| 65 | + EXPECT(res != -1); |
| 66 | + size_t size = st.st_size; |
| 67 | + int fd = open("test-multiple.tar", O_RDONLY); |
| 68 | + EXPECT_NOT(fd == -1); |
| 69 | + const uint8_t *mem = (const uint8_t *)mmap(0, size, PROT_READ, MAP_PRIVATE, fd, 0); |
| 70 | + tar::Tar tar = r.read_uncompressed(mem, size); |
| 71 | + auto names = tar.element_names(); |
| 72 | + EXPECT(names.size() > 1); |
| 73 | + const auto& elements = tar.elements(); |
| 74 | + EXPECT(elements.size() > 1); |
| 75 | + const auto& e = elements.at(elements.size() - 1); |
| 76 | + EXPECT(e.name().find(".py") != std::string::npos); |
| 77 | + close(fd); |
| 78 | +} |
| 79 | + |
| 80 | +CASE("Reading invalid tar file") |
| 81 | +{ |
| 82 | + tar::Reader r; |
| 83 | + struct stat st; |
| 84 | + int res = stat("test-invalid.tar", &st); |
| 85 | + EXPECT(res != -1); |
| 86 | + size_t size = st.st_size; |
| 87 | + int fd = open("test-invalid.tar", O_RDONLY); |
| 88 | + EXPECT_NOT(fd == -1); |
| 89 | + const uint8_t *mem = (const uint8_t *)mmap(0, size, PROT_READ, MAP_PRIVATE, fd, 0); |
| 90 | + EXPECT_THROWS_AS(tar::Tar tar = r.read_uncompressed(mem, size), tar::Tar_exception); |
| 91 | + close(fd); |
| 92 | +} |
| 93 | + |
| 94 | +CASE("Reading corrupt tar.gz file") |
| 95 | +{ |
| 96 | + tar::Reader r; |
| 97 | + struct stat st; |
| 98 | + int res = stat("test-corrupt.gz", &st); |
| 99 | + EXPECT(res != -1); |
| 100 | + size_t size = st.st_size; |
| 101 | + int fd = open("test-corrupt.gz", O_RDONLY); |
| 102 | + EXPECT_NOT(fd == -1); |
| 103 | + const uint8_t *mem = (const uint8_t *)mmap(0, size, PROT_READ, MAP_PRIVATE, fd, 0); |
| 104 | + EXPECT_THROWS_AS(tar::Tar tar = r.decompress(mem, size), tar::Tar_exception); |
| 105 | + close(fd); |
| 106 | +} |
| 107 | + |
| 108 | +CASE("Reading tar.gz inside tar file") |
| 109 | +{ |
| 110 | + tar::Reader r; |
| 111 | + struct stat st; |
| 112 | + int res = stat("test-tar-gz-inside.tar", &st); |
| 113 | + EXPECT(res != -1); |
| 114 | + size_t size = st.st_size; |
| 115 | + int fd = open("test-tar-gz-inside.tar", O_RDONLY); |
| 116 | + EXPECT_NOT(fd == -1); |
| 117 | + const uint8_t *mem = (const uint8_t *)mmap(0, size, PROT_READ, MAP_PRIVATE, fd, 0); |
| 118 | + tar::Tar tar = r.read_uncompressed(mem, size); |
| 119 | + EXPECT(tar.num_elements() == 1); |
| 120 | + const auto& e = tar.elements().at(0); |
| 121 | + EXPECT(e.is_tar_gz()); |
| 122 | + EXPECT(e.name().find(".tar.gz") != std::string::npos); |
| 123 | + tar::Tar inner_tar = r.decompress(e); |
| 124 | + EXPECT(inner_tar.num_elements() == 1); |
| 125 | + const auto& inner_e = inner_tar.elements().at(0); |
| 126 | + EXPECT(inner_e.name().find(".tar.gz") == std::string::npos); |
| 127 | + close(fd); |
| 128 | +} |
0 commit comments