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| 1 Prerequisites |
| 2 ============= |
| 3 |
| 4 You can use your Ubuntu box (>= 8.04. 9.10 is recommended) to test OTS library. |
| 5 |
| 6 First, install TrueType and OpenType fonts to the Ubuntu box as many as |
| 7 possible. |
| 8 |
| 9 % sudo apt-get install ttf-.*[^0]$ |
| 10 |
| 11 Then, put malicious TrueType fonts on `~/malicious/`. For details, please check |
| 12 http://code.google.com/p/chromium/issues/detail?id=27139#c2. Currently access |
| 13 to the issue is limited to chromium-security team members for security reasons. |
| 14 |
| 15 % cd |
| 16 % tar xjf ~/ttf-testsuite.tar.bz2 |
| 17 |
| 18 Test |
| 19 ==== |
| 20 |
| 21 In order to verify that: |
| 22 |
| 23 1. OTS does not reject these unmalicious fonts. |
| 24 2. and transcoded fonts OTS generates can be loaded by a system font renderer (F
reeType2). |
| 25 |
| 26 Run `test_unmalicious_fonts.sh` script: |
| 27 |
| 28 % cd /path/to/ots/tests |
| 29 % ./test_unmalicious_fonts.sh |
| 30 ............................................... (verify that no FAIL: is di
splayed) |
| 31 |
| 32 Then in order to verify that: |
| 33 |
| 34 1. OTS can reject malicious fonts |
| 35 2. or transcoded fonts generated by OTS do not crash a system font renderer (Fre
eType2). |
| 36 |
| 37 Run `test_malicious_fonts.sh` script: |
| 38 |
| 39 % cd /path/to/ots/tests |
| 40 % ./test_malicious_fonts.sh |
| 41 ............................................... (verify that no FAIL: is di
splayed) |
| 42 |
| 43 Command line tools |
| 44 ================== |
| 45 |
| 46 We have some command line tools for tests. To build them: |
| 47 |
| 48 - On Linux: |
| 49 |
| 50 % gyp --depth=. -f make ots-standalone.gyp |
| 51 % make |
| 52 (tool is located at build/Default directory) |
| 53 |
| 54 - On Windows (VC++ is needed): |
| 55 |
| 56 % gyp --depth=. -f msvs ots-standalone.gyp |
| 57 % devenv.exe /build Default ots-standalone.sln /project idempotent.vcpro
j |
| 58 (tool is located at Default directory) |
| 59 |
| 60 - On Mac (XCode is needed): |
| 61 |
| 62 % gyp --depth=. -f xcode ots-standalone.gyp |
| 63 % xcodebuild -configuration Default -project ots-standalone.xcodeproj -t
arget All |
| 64 (tool is located at build/Default directory) |
| 65 |
| 66 You can use `idempotent` tool to check whether a font will be rejected or not. |
| 67 You can also use `ot-sanitise` tool to get sanitised font (it is available on |
| 68 Linux for now). See README file in the test directory for more details. |
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Chromium Code Reviews
Issue 658573004:
Updating to new OTS repo from https://github.com/khaledhosny/ots.git (Closed)
Base URL: https://chromium.googlesource.com/external/ots@master