Import a new implementation of fromUserInput.

Imported from http://github.com/icefox/guessurlfromstring

Licensed under the 3-clause BSD license by the copyright holder.

1 files changed, 57 insertions, 0 deletions

diff --git a/src/corelib/io/qurl.cpp b/src/corelib/io/qurl.cpp
index a865d8d..86680a5 100644
--- a/src/corelib/io/qurl.cpp
+++ b/src/corelib/io/qurl.cpp
@@ -6154,6 +6154,34 @@ QString QUrl::errorString() const
     \internal
 */
 
+// The following code has the following copyright:
+/*
+   Copyright (C) Research In Motion Limited 2009. All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+    * Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+    * Neither the name of Research In Motion Limited nor the
+      names of its contributors may be used to endorse or promote products
+      derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY Research In Motion Limited ''AS IS'' AND ANY
+EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL Research In Motion Limited BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+*/
+
 
 /*!
     Returns a valid URL from a user supplied \a userInput string if one can be
@@ -6198,6 +6226,35 @@ QString QUrl::errorString() const
 */
 QUrl QUrl::fromUserInput(const QString &userInput)
 {
+    QString trimmedString = userInput.trimmed();
+
+    // Check the most common case of a valid url with scheme and host first
+    QUrl url = QUrl::fromEncoded(trimmedString.toUtf8(), QUrl::TolerantMode);
+    if (url.isValid() && !url.scheme().isEmpty() && !url.host().isEmpty())
+        return url;
+
+    // Absolute files that exists
+    if (QDir::isAbsolutePath(trimmedString) && QFile::exists(trimmedString))
+        return QUrl::fromLocalFile(trimmedString);
+
+    // If the string is missing the scheme or the scheme is not valid prepend a scheme
+    QString scheme = url.scheme();
+    if (scheme.isEmpty() || scheme.contains(QLatin1Char('.')) || scheme == QLatin1String("localhost")) {
+        // Do not do anything for strings such as "foo", only "foo.com"
+        int dotIndex = trimmedString.indexOf(QLatin1Char('.'));
+        if (dotIndex != -1 || trimmedString.startsWith(QLatin1String("localhost"))) {
+            const QString hostscheme = trimmedString.left(dotIndex).toLower();
+            QByteArray scheme = (hostscheme == QLatin1String("ftp")) ? "ftp" : "http";
+            trimmedString = QLatin1String(scheme) + QLatin1String("://") + trimmedString;
+        }
+        url = QUrl::fromEncoded(trimmedString.toUtf8(), QUrl::TolerantMode);
+    }
+
+    if (url.isValid())
+        return url;
+
+    return QUrl();
 }
+// end of BSD code
 
 QT_END_NAMESPACE