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authorStephan Bergmann <sbergman@redhat.com>2015-10-29 12:17:40 +0100
committerStephan Bergmann <sbergman@redhat.com>2015-10-29 13:02:40 +0000
commita346dfccd7e342d776dd59eb3ed128557e22a1bf (patch)
treefd2b7dcb940e054bdc080afed3b52257c9e4ca84
parentb051510796dcf289edcd03737087176e53bbe4b8 (diff)
tdf#70833: IDNA support when exporing hyperlinks to PDF
Any URLs using non-ASCII IDNA syntax need to be resolved to ASCII-only, as PDF URI Action's URI needs to be "encoded in 7-bit ASCII." Introduce URIHelper::resolveIdnaHost (svl/urihelper.hxx), which internally uses icu::IDNA, which requires to bump the minimal --with-system-icu requirement from 4.2 to 4.6, which means ICU_RECLASSIFIED_CLOSE_PARENTHESIS is always true now. Change-Id: I0e20d9a20ed2b869fba0cc7c969721411db590b3 Reviewed-on: https://gerrit.libreoffice.org/19669 Reviewed-by: Stephan Bergmann <sbergman@redhat.com> Tested-by: Stephan Bergmann <sbergman@redhat.com>
-rw-r--r--config_host.mk.in1
-rw-r--r--configure.ac11
-rw-r--r--i18npool/CustomTarget_breakiterator.mk3
-rw-r--r--include/svl/urihelper.hxx17
-rw-r--r--svl/Library_svl.mk2
-rw-r--r--svl/qa/unit/test_URIHelper.cxx63
-rw-r--r--svl/source/misc/urihelper.cxx68
-rw-r--r--vcl/source/gdi/pdfwriter_impl.cxx11
8 files changed, 160 insertions, 16 deletions
diff --git a/config_host.mk.in b/config_host.mk.in
index 8d54bade7a8f..5b2e6489f5d8 100644
--- a/config_host.mk.in
+++ b/config_host.mk.in
@@ -273,7 +273,6 @@ export ICU_CFLAGS=$(gb_SPACE)@ICU_CFLAGS@
export ICU_LIBS=$(gb_SPACE)@ICU_LIBS@
export ICU_MAJOR=@ICU_MAJOR@
export ICU_MINOR=@ICU_MINOR@
-export ICU_RECLASSIFIED_CLOSE_PARENTHESIS=@ICU_RECLASSIFIED_CLOSE_PARENTHESIS@
export ICU_RECLASSIFIED_CONDITIONAL_JAPANESE_STARTER=@ICU_RECLASSIFIED_CONDITIONAL_JAPANESE_STARTER@
export ICU_RECLASSIFIED_HEBREW_LETTER=@ICU_RECLASSIFIED_HEBREW_LETTER@
export ICU_RECLASSIFIED_PREPEND_SET_EMPTY=@ICU_RECLASSIFIED_PREPEND_SET_EMPTY@
diff --git a/configure.ac b/configure.ac
index 50003a650224..4a7f6b357917 100644
--- a/configure.ac
+++ b/configure.ac
@@ -8949,7 +8949,6 @@ SYSTEM_GENCMN=
ICU_MAJOR=56
ICU_MINOR=1
-ICU_RECLASSIFIED_CLOSE_PARENTHESIS="TRUE"
ICU_RECLASSIFIED_PREPEND_SET_EMPTY="TRUE"
ICU_RECLASSIFIED_CONDITIONAL_JAPANESE_STARTER="TRUE"
ICU_RECLASSIFIED_HEBREW_LETTER="TRUE"
@@ -8974,10 +8973,10 @@ if test "$with_system_icu" = "yes"; then
ICU_MAJOR=`echo $ICU_VERSION | cut -d"." -f1`
ICU_MINOR=`echo $ICU_VERSION | cut -d"." -f2`
- if test "$ICU_MAJOR" -ge "49" -o \( "$ICU_MAJOR" = "4" -a "$ICU_MINOR" -ge "2" \); then
+ if test "$ICU_MAJOR" -ge "49" -o \( "$ICU_MAJOR" = "4" -a "$ICU_MINOR" -ge "6" \); then
AC_MSG_RESULT([OK, $ICU_VERSION])
else
- AC_MSG_ERROR([not suitable, only >= 4.2 supported currently])
+ AC_MSG_ERROR([not suitable, only >= 4.6 supported currently])
fi
fi
@@ -9013,11 +9012,6 @@ You can use --with-system-icu-for-build=force to use it anyway.])
if test -z "$SYSTEM_GENCMN"; then
AC_MSG_ERROR([\'gencmn\' not found in \$PATH, install the icu development tool \'gencmn\'])
fi
- if test "$ICU_MAJOR" -ge "49" -o \( "$ICU_MAJOR" = "4" -a "$ICU_MINOR" -ge "4" \); then
- ICU_RECLASSIFIED_CLOSE_PARENTHESIS="TRUE"
- else
- ICU_RECLASSIFIED_CLOSE_PARENTHESIS=
- fi
if test "$ICU_MAJOR" -ge "49"; then
ICU_RECLASSIFIED_PREPEND_SET_EMPTY="TRUE"
ICU_RECLASSIFIED_CONDITIONAL_JAPANESE_STARTER="TRUE"
@@ -9055,7 +9049,6 @@ AC_SUBST(SYSTEM_GENCCODE)
AC_SUBST(SYSTEM_GENCMN)
AC_SUBST(ICU_MAJOR)
AC_SUBST(ICU_MINOR)
-AC_SUBST(ICU_RECLASSIFIED_CLOSE_PARENTHESIS)
AC_SUBST(ICU_RECLASSIFIED_PREPEND_SET_EMPTY)
AC_SUBST(ICU_RECLASSIFIED_CONDITIONAL_JAPANESE_STARTER)
AC_SUBST(ICU_RECLASSIFIED_HEBREW_LETTER)
diff --git a/i18npool/CustomTarget_breakiterator.mk b/i18npool/CustomTarget_breakiterator.mk
index 4aaf2e5a710e..302ad464eb12 100644
--- a/i18npool/CustomTarget_breakiterator.mk
+++ b/i18npool/CustomTarget_breakiterator.mk
@@ -98,8 +98,7 @@ $(i18npool_BIDIR)/%.brk : $(i18npool_BIDIR)/%.txt $(call gb_ExternalExecutable_g
# sed substitution...
$(i18npool_BIDIR)/%.txt : \
$(SRCDIR)/i18npool/source/breakiterator/data/%.txt | $(i18npool_BIDIR)/.dir
- sed -e ': dummy' \
- $(if $(ICU_RECLASSIFIED_CLOSE_PARENTHESIS),-e "s#\[:LineBreak = Close_Punctuation:\]#\[& \[:LineBreak = Close_Parenthesis:\]\]#") \
+ sed -e "s#\[:LineBreak = Close_Punctuation:\]#\[& \[:LineBreak = Close_Parenthesis:\]\]#" \
$(if $(ICU_RECLASSIFIED_CONDITIONAL_JAPANESE_STARTER),,\
-e '/\[:LineBreak = Conditional_Japanese_Starter:\]/d' \
-e 's# $$CJ##' \
diff --git a/include/svl/urihelper.hxx b/include/svl/urihelper.hxx
index b784188461f8..5f7633033ffd 100644
--- a/include/svl/urihelper.hxx
+++ b/include/svl/urihelper.hxx
@@ -152,6 +152,23 @@ SVL_DLLPUBLIC OUString removePassword(OUString const & rURI,
INetURLObject::EncodeMechanism eEncodeMechanism = INetURLObject::WAS_ENCODED,
INetURLObject::DecodeMechanism eDecodeMechanism = INetURLObject::DECODE_TO_IURI,
rtl_TextEncoding eCharset = RTL_TEXTENCODING_UTF8);
+
+/** Resolve a URL's host component domain name in IDNA syntax to plain DNS
+ syntax.
+
+ For details, see RFC 5890 "Internationalized Domain Names for Applications
+ (IDNA): Definitions and Document Framework."
+
+ @param: url An arbitrary string, should be a URI.
+
+ @return If the input matches the syntax of a hierarchical URL, and it has
+ a host component that matches the IDNA2008 domain name syntax, and that
+ domain name contains any U-labels, return a version of the input URL with
+ the host component resolved to plain DNS syntax. Otherwise, return the
+ input unchanged.
+*/
+SVL_DLLPUBLIC OUString resolveIdnaHost(OUString const & url);
+
}
#endif // INCLUDED_SVL_URIHELPER_HXX
diff --git a/svl/Library_svl.mk b/svl/Library_svl.mk
index db08af5f4b3a..3a7b00d1aaa0 100644
--- a/svl/Library_svl.mk
+++ b/svl/Library_svl.mk
@@ -21,6 +21,8 @@ $(eval $(call gb_Library_Library,svl))
$(eval $(call gb_Library_use_externals,svl,\
boost_headers \
+ icu_headers \
+ icuuc \
mdds_headers \
libxml2 \
))
diff --git a/svl/qa/unit/test_URIHelper.cxx b/svl/qa/unit/test_URIHelper.cxx
index f27149b57a01..37d53e90ec6c 100644
--- a/svl/qa/unit/test_URIHelper.cxx
+++ b/svl/qa/unit/test_URIHelper.cxx
@@ -198,9 +198,12 @@ public:
void testFindFirstURLInText();
+ void testResolveIdnaHost();
+
CPPUNIT_TEST_SUITE(Test);
CPPUNIT_TEST(testNormalizedMakeRelative);
CPPUNIT_TEST(testFindFirstURLInText);
+ CPPUNIT_TEST(testResolveIdnaHost);
CPPUNIT_TEST(finish);
CPPUNIT_TEST_SUITE_END();
@@ -423,6 +426,66 @@ void Test::testFindFirstURLInText() {
}
}
+void Test::testResolveIdnaHost() {
+ OUString input;
+
+ input.clear();
+ CPPUNIT_ASSERT_EQUAL(input, URIHelper::resolveIdnaHost(input));
+
+ input = OUString::fromUtf8("Foo.M\xC3\xBCnchen.de");
+ CPPUNIT_ASSERT_EQUAL(input, URIHelper::resolveIdnaHost(input));
+
+ input = OUString::fromUtf8("foo://Muenchen.de");
+ CPPUNIT_ASSERT_EQUAL(input, URIHelper::resolveIdnaHost(input));
+
+ input = OUString::fromUtf8("foo://-M\xC3\xBCnchen.de");
+ CPPUNIT_ASSERT_EQUAL(input, URIHelper::resolveIdnaHost(input));
+
+ input = OUString::fromUtf8("foo://M\xC3\xBCnchen-.de");
+ CPPUNIT_ASSERT_EQUAL(input, URIHelper::resolveIdnaHost(input));
+
+ input = OUString::fromUtf8("foo://xn--M\xC3\xBCnchen.de");
+ CPPUNIT_ASSERT_EQUAL(input, URIHelper::resolveIdnaHost(input));
+
+ input = OUString::fromUtf8("foo://xy--M\xC3\xBCnchen.de");
+ CPPUNIT_ASSERT_EQUAL(input, URIHelper::resolveIdnaHost(input));
+
+ input = OUString::fromUtf8("foo://.M\xC3\xBCnchen.de");
+ CPPUNIT_ASSERT_EQUAL(input, URIHelper::resolveIdnaHost(input));
+
+ input = OUString::fromUtf8("foo://-bar.M\xC3\xBCnchen.de");
+ CPPUNIT_ASSERT_EQUAL(input, URIHelper::resolveIdnaHost(input));
+
+ input = OUString::fromUtf8("foo://bar-.M\xC3\xBCnchen.de");
+ CPPUNIT_ASSERT_EQUAL(input, URIHelper::resolveIdnaHost(input));
+
+ input = OUString::fromUtf8("foo://xn--bar.M\xC3\xBCnchen.de");
+ CPPUNIT_ASSERT_EQUAL(input, URIHelper::resolveIdnaHost(input));
+
+ input = OUString::fromUtf8("foo://xy--bar.M\xC3\xBCnchen.de");
+ CPPUNIT_ASSERT_EQUAL(input, URIHelper::resolveIdnaHost(input));
+
+ CPPUNIT_ASSERT_EQUAL(
+ OUString::fromUtf8("foo://M\xC3\xBCnchen@xn--mnchen-3ya.de"),
+ URIHelper::resolveIdnaHost(
+ OUString::fromUtf8("foo://M\xC3\xBCnchen@M\xC3\xBCnchen.de")));
+
+ CPPUNIT_ASSERT_EQUAL(
+ OUString::fromUtf8("foo://xn--mnchen-3ya.de."),
+ URIHelper::resolveIdnaHost(
+ OUString::fromUtf8("foo://M\xC3\xBCnchen.de.")));
+
+ CPPUNIT_ASSERT_EQUAL(
+ OUString::fromUtf8("Foo://bar@xn--mnchen-3ya.de:123/?bar#baz"),
+ URIHelper::resolveIdnaHost(
+ OUString::fromUtf8("Foo://bar@M\xC3\xBCnchen.de:123/?bar#baz")));
+
+ CPPUNIT_ASSERT_EQUAL(
+ OUString::fromUtf8("foo://xn--mnchen-3ya.de"),
+ URIHelper::resolveIdnaHost(
+ OUString::fromUtf8("foo://Mu\xCC\x88nchen.de")));
+}
+
css::uno::Reference< css::uno::XComponentContext > Test::m_context;
CPPUNIT_TEST_SUITE_REGISTRATION(Test);
diff --git a/svl/source/misc/urihelper.cxx b/svl/source/misc/urihelper.cxx
index ab47bb6de3b6..bb5678a9291f 100644
--- a/svl/source/misc/urihelper.cxx
+++ b/svl/source/misc/urihelper.cxx
@@ -17,6 +17,10 @@
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
+#include <sal/config.h>
+
+#include <unicode/idna.h>
+
#include <svl/urihelper.hxx>
#include <com/sun/star/ucb/Command.hpp>
#include <com/sun/star/ucb/IllegalIdentifierException.hpp>
@@ -725,4 +729,68 @@ OUString URIHelper::removePassword(OUString const & rURI,
aObj.GetURLNoPass(eDecodeMechanism, eCharset);
}
+OUString URIHelper::resolveIdnaHost(OUString const & url) {
+ css::uno::Reference<css::uri::XUriReference> uri(
+ css::uri::UriReferenceFactory::create(
+ comphelper::getProcessComponentContext())
+ ->parse(url));
+ if (!(uri.is() && uri->hasAuthority())) {
+ return url;
+ }
+ auto auth(uri->getAuthority());
+ sal_Int32 hostStart = auth.indexOf('@') + 1;
+ sal_Int32 hostEnd = auth.getLength() - 1;
+ while (hostEnd > hostStart && rtl::isAsciiDigit(auth[hostEnd])) {
+ --hostEnd;
+ }
+ if (!(hostEnd > hostStart && auth[hostEnd] == ':')) {
+ hostEnd = auth.getLength() - 1;
+ }
+ auto asciiOnly = true;
+ for (auto i = hostStart; i != hostEnd; ++i) {
+ if (!rtl::isAscii(auth[i])) {
+ asciiOnly = false;
+ break;
+ }
+ }
+ if (asciiOnly) {
+ // Avoid icu::IDNA case normalization in purely non-IDNA domain names:
+ return url;
+ }
+ UErrorCode e = U_ZERO_ERROR;
+ std::unique_ptr<icu::IDNA> idna(
+ icu::IDNA::createUTS46Instance(
+ (UIDNA_USE_STD3_RULES | UIDNA_CHECK_BIDI | UIDNA_CHECK_CONTEXTJ
+ | UIDNA_CHECK_CONTEXTO),
+ e));
+ if (U_FAILURE(e)) {
+ SAL_WARN("vcl.gdi", "icu::IDNA::createUTS46Instance " << e);
+ return url;
+ }
+ icu::UnicodeString ascii;
+ icu::IDNAInfo info;
+ idna->nameToASCII(
+ icu::UnicodeString(
+ reinterpret_cast<UChar const *>(auth.getStr() + hostStart),
+ hostEnd - hostStart),
+ ascii, info, e);
+ if (U_FAILURE(e) || info.hasErrors()) {
+ return url;
+ }
+ OUStringBuffer buf(uri->getScheme());
+ buf.append("://").append(auth.getStr(), hostStart);
+ buf.append(
+ reinterpret_cast<sal_Unicode const *>(ascii.getBuffer()),
+ ascii.length());
+ buf.append(auth.getStr() + hostEnd, auth.getLength() - hostEnd)
+ .append(uri->getPath());
+ if (uri->hasQuery()) {
+ buf.append('?').append(uri->getQuery());
+ }
+ if (uri->hasFragment()) {
+ buf.append('#').append(uri->getFragment());
+ }
+ return buf.makeStringAndClear();
+}
+
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
diff --git a/vcl/source/gdi/pdfwriter_impl.cxx b/vcl/source/gdi/pdfwriter_impl.cxx
index fcd04b44515a..ae009788aaa5 100644
--- a/vcl/source/gdi/pdfwriter_impl.cxx
+++ b/vcl/source/gdi/pdfwriter_impl.cxx
@@ -44,6 +44,7 @@
#include <rtl/crc.h>
#include <rtl/digest.h>
#include <rtl/ustrbuf.hxx>
+#include <svl/urihelper.hxx>
#include <tools/debug.hxx>
#include <tools/fract.hxx>
#include <tools/stream.hxx>
@@ -4495,8 +4496,10 @@ we check in the following sequence:
// are the correct one!!
// extract target file type
+ auto url(URIHelper::resolveIdnaHost(rLink.m_aURL));
+
INetURLObject aDocumentURL( m_aContext.BaseURL );
- INetURLObject aTargetURL( rLink.m_aURL );
+ INetURLObject aTargetURL( url );
bool bSetGoToRMode = false;
bool bTargetHasPDFExtension = false;
INetProtocol eTargetProtocol = aTargetURL.GetProtocol();
@@ -4507,7 +4510,7 @@ we check in the following sequence:
// getting the needed URL information from the current document path
if( eTargetProtocol == INetProtocol::NotValid )
{
- if( rLink.m_aURL.getLength() > 4 && rLink.m_aURL.startsWith("\\\\\\\\"))
+ if( url.getLength() > 4 && url.startsWith("\\\\\\\\"))
{
bIsUNCPath = true;
}
@@ -4516,7 +4519,7 @@ we check in the following sequence:
INetURLObject aNewBase( aDocumentURL );//duplicate document URL
aNewBase.removeSegment(); //remove last segment from it, obtaining the base URL of the
//target document
- aNewBase.insertName( rLink.m_aURL );
+ aNewBase.insertName( url );
aTargetURL = aNewBase;//reassign the new target URL
//recompute the target protocol, with the new URL
//normal URL processing resumes
@@ -4564,7 +4567,7 @@ we check in the following sequence:
{
aLine.append( "/Launch/Win<</F" );
// INetURLObject is not good with UNC paths, use original path
- appendLiteralStringEncrypt( rLink.m_aURL, rLink.m_nObject, aLine, osl_getThreadTextEncoding() );
+ appendLiteralStringEncrypt( url, rLink.m_nObject, aLine, osl_getThreadTextEncoding() );
aLine.append( ">>" );
}
else