libchromeos: Add Base64 encoding/decoding functions.
Several platform2 components require the ability to encode/decode
base64 data, and each have their own implementations. Add one to
libchromeos to consolidate usages.
BUG=chromium:435314
TEST=`FEATURES=test emerge-link libchromeos`
Change-Id: I9df752d8995773adb56fab34dd97626f3ddf1765
Reviewed-on: https://chromium-review.googlesource.com/247690
Reviewed-by: Alex Vakulenko <avakulenko@chromium.org>
Tested-by: Alex Vakulenko <avakulenko@chromium.org>
Commit-Queue: Alex Vakulenko <avakulenko@chromium.org>
diff --git a/chromeos/data_encoding_unittest.cc b/chromeos/data_encoding_unittest.cc
index b7d6bdd..549c478 100644
--- a/chromeos/data_encoding_unittest.cc
+++ b/chromeos/data_encoding_unittest.cc
@@ -4,6 +4,8 @@
#include <chromeos/data_encoding.h>
+#include <algorithm>
+
#include <gtest/gtest.h>
namespace chromeos {
@@ -36,5 +38,109 @@
EXPECT_EQ("%", params[2].second);
}
+TEST(data_encoding, Base64Encode) {
+ const std::string text1 = "hello world";
+ const std::string encoded1 = "aGVsbG8gd29ybGQ=";
+
+ const std::string text2 =
+ "Lorem ipsum dolor sit amet, facilisis erat nec aliquam, scelerisque "
+ "molestie commodo. Viverra tincidunt integer erat ipsum, integer "
+ "molestie, arcu in, sit mauris ac a sed sit etiam.";
+ const std::string encoded2 =
+ "TG9yZW0gaXBzdW0gZG9sb3Igc2l0IGFtZXQsIGZhY2lsaXNpcyBlcmF0IG5lYyBhbGlxdWF"
+ "tLCBzY2VsZXJpc3F1ZSBtb2xlc3RpZSBjb21tb2RvLiBWaXZlcnJhIHRpbmNpZHVudCBpbn"
+ "RlZ2VyIGVyYXQgaXBzdW0sIGludGVnZXIgbW9sZXN0aWUsIGFyY3UgaW4sIHNpdCBtYXVya"
+ "XMgYWMgYSBzZWQgc2l0IGV0aWFtLg==";
+
+ chromeos::Blob data3(256);
+ std::iota(data3.begin(), data3.end(), 0); // Fills the buffer with 0x00-0xFF.
+ const std::string encoded3 =
+ "AAECAwQFBgcICQoLDA0ODxAREhMUFRYXGBkaGxwdHh8gISIjJCUmJygpKissLS4vMDEyMzQ"
+ "1Njc4OTo7PD0+P0BBQkNERUZHSElKS0xNTk9QUVJTVFVWV1hZWltcXV5fYGFiY2RlZmdoaW"
+ "prbG1ub3BxcnN0dXZ3eHl6e3x9fn+AgYKDhIWGh4iJiouMjY6PkJGSk5SVlpeYmZqbnJ2en"
+ "6ChoqOkpaanqKmqq6ytrq+wsbKztLW2t7i5uru8vb6/wMHCw8TFxsfIycrLzM3Oz9DR0tPU"
+ "1dbX2Nna29zd3t/g4eLj5OXm5+jp6uvs7e7v8PHy8/T19vf4+fr7/P3+/w==";
+
+ EXPECT_EQ(encoded1, Base64Encode(text1));
+ EXPECT_EQ(encoded2, Base64Encode(text2));
+ EXPECT_EQ(encoded3, Base64Encode(data3));
+}
+
+TEST(data_encoding, Base64EncodeWrapLines) {
+ const std::string text1 = "hello world";
+ const std::string encoded1 = "aGVsbG8gd29ybGQ=\n";
+
+ const std::string text2 =
+ "Lorem ipsum dolor sit amet, facilisis erat nec aliquam, scelerisque "
+ "molestie commodo. Viverra tincidunt integer erat ipsum, integer "
+ "molestie, arcu in, sit mauris ac a sed sit etiam.";
+ const std::string encoded2 =
+ "TG9yZW0gaXBzdW0gZG9sb3Igc2l0IGFtZXQsIGZhY2lsaXNpcyBlcmF0IG5lYyBh\n"
+ "bGlxdWFtLCBzY2VsZXJpc3F1ZSBtb2xlc3RpZSBjb21tb2RvLiBWaXZlcnJhIHRp\n"
+ "bmNpZHVudCBpbnRlZ2VyIGVyYXQgaXBzdW0sIGludGVnZXIgbW9sZXN0aWUsIGFy\n"
+ "Y3UgaW4sIHNpdCBtYXVyaXMgYWMgYSBzZWQgc2l0IGV0aWFtLg==\n";
+
+ chromeos::Blob data3(256);
+ std::iota(data3.begin(), data3.end(), 0); // Fills the buffer with 0x00-0xFF.
+ const std::string encoded3 =
+ "AAECAwQFBgcICQoLDA0ODxAREhMUFRYXGBkaGxwdHh8gISIjJCUmJygpKissLS4v\n"
+ "MDEyMzQ1Njc4OTo7PD0+P0BBQkNERUZHSElKS0xNTk9QUVJTVFVWV1hZWltcXV5f\n"
+ "YGFiY2RlZmdoaWprbG1ub3BxcnN0dXZ3eHl6e3x9fn+AgYKDhIWGh4iJiouMjY6P\n"
+ "kJGSk5SVlpeYmZqbnJ2en6ChoqOkpaanqKmqq6ytrq+wsbKztLW2t7i5uru8vb6/\n"
+ "wMHCw8TFxsfIycrLzM3Oz9DR0tPU1dbX2Nna29zd3t/g4eLj5OXm5+jp6uvs7e7v\n"
+ "8PHy8/T19vf4+fr7/P3+/w==\n";
+
+ EXPECT_EQ(encoded1, Base64EncodeWrapLines(text1));
+ EXPECT_EQ(encoded2, Base64EncodeWrapLines(text2));
+ EXPECT_EQ(encoded3, Base64EncodeWrapLines(data3));
+}
+
+TEST(data_encoding, Base64Decode) {
+ const std::string encoded1 = "dGVzdCBzdHJpbmc=";
+
+ const std::string encoded2 =
+ "TG9yZW0gaXBzdW0gZG9sb3Igc2l0IGFtZXQsIGZhY2lsaXNpcyBlcmF0IG5lYyBh\n"
+ "bGlxdWFtLCBzY2VsZXJpc3F1ZSBtb2xlc3RpZSBjb21tb2RvLiBWaXZlcnJhIHRp\r\n"
+ "bmNpZHVudCBpbnRlZ2VyIGVyYXQgaXBzdW0sIGludGVnZXIgbW9sZXN0aWUsIGFy\r"
+ "Y3UgaW4sIHNpdCBtYXVyaXMgYWMgYSBzZWQgc2l0IGV0aWFt\n"
+ "Lg==\n\n\n";
+ const std::string decoded2 =
+ "Lorem ipsum dolor sit amet, facilisis erat nec aliquam, scelerisque "
+ "molestie commodo. Viverra tincidunt integer erat ipsum, integer "
+ "molestie, arcu in, sit mauris ac a sed sit etiam.";
+
+ const std::string encoded3 =
+ "AAECAwQFBgcICQoLDA0ODxAREhMUFRYXGBkaGxwdHh8gISIjJCUmJygpKissLS4vMDEyMzQ"
+ "1Njc4OTo7PD0+P0BBQkNERUZHSElKS0xNTk9QUVJTVFVWV1hZWltcXV5fYGFiY2RlZmdoaW"
+ "prbG1ub3BxcnN0dXZ3eHl6e3x9fn+AgYKDhIWGh4iJiouMjY6PkJGSk5SVlpeYmZqbnJ2en"
+ "6ChoqOkpaanqKmqq6ytrq+wsbKztLW2t7i5uru8vb6/wMHCw8TFxsfIycrLzM3Oz9DR0tPU"
+ "1dbX2Nna29zd3t/g4eLj5OXm5+jp6uvs7e7v8PHy8/T19vf4+fr7/P3+/w==";
+ chromeos::Blob decoded3(256);
+ std::iota(decoded3.begin(), decoded3.end(), 0); // Fill with 0x00..0xFF.
+
+ std::string decoded;
+ EXPECT_TRUE(Base64Decode(encoded1, &decoded));
+ EXPECT_EQ("test string", decoded);
+
+ EXPECT_TRUE(Base64Decode(encoded2, &decoded));
+ EXPECT_EQ(decoded2, decoded);
+
+ chromeos::Blob decoded_blob;
+ EXPECT_TRUE(Base64Decode(encoded3, &decoded_blob));
+ EXPECT_EQ(decoded3, decoded_blob);
+
+ EXPECT_FALSE(Base64Decode("A", &decoded_blob));
+ EXPECT_TRUE(decoded_blob.empty());
+
+ EXPECT_TRUE(Base64Decode("/w==", &decoded_blob));
+ EXPECT_EQ((chromeos::Blob{0xFF}), decoded_blob);
+
+ EXPECT_TRUE(Base64Decode("//8=", &decoded_blob));
+ EXPECT_EQ((chromeos::Blob{0xFF, 0xFF}), decoded_blob);
+
+ EXPECT_FALSE(Base64Decode("AAECAwQFB,cI", &decoded_blob));
+ EXPECT_TRUE(decoded_blob.empty());
+}
+
} // namespace data_encoding
} // namespace chromeos