--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/loader/appcache/ManifestParser.cpp Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,188 @@
+/*
+ * Copyright (C) 2008 Apple Inc. All Rights Reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. OR
+ * CONTRIBUTORS 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.
+ */
+
+#include "config.h"
+#include "ManifestParser.h"
+
+#if ENABLE(OFFLINE_WEB_APPLICATIONS)
+
+#include "CharacterNames.h"
+#include "KURL.h"
+#include "TextResourceDecoder.h"
+
+using namespace std;
+
+namespace WebCore {
+
+enum Mode { Explicit, Fallback, OnlineWhitelist, Unknown };
+
+bool parseManifest(const KURL& manifestURL, const char* data, int length, Manifest& manifest)
+{
+ ASSERT(manifest.explicitURLs.isEmpty());
+ ASSERT(manifest.onlineWhitelistedURLs.isEmpty());
+ ASSERT(manifest.fallbackURLs.isEmpty());
+ manifest.allowAllNetworkRequests = false;
+
+ Mode mode = Explicit;
+
+ RefPtr<TextResourceDecoder> decoder = TextResourceDecoder::create("text/cache-manifest", "UTF-8");
+ String s = decoder->decode(data, length);
+ s += decoder->flush();
+
+ // Look for the magic signature: "^\xFEFF?CACHE MANIFEST[ \t]?" (the BOM is removed by TextResourceDecoder).
+ // Example: "CACHE MANIFEST #comment" is a valid signature.
+ // Example: "CACHE MANIFEST;V2" is not.
+ if (!s.startsWith("CACHE MANIFEST"))
+ return false;
+
+ const UChar* end = s.characters() + s.length();
+ const UChar* p = s.characters() + 14; // "CACHE MANIFEST" is 14 characters.
+
+ if (p < end && *p != ' ' && *p != '\t' && *p != '\n' && *p != '\r')
+ return false;
+
+ // Skip to the end of the line.
+ while (p < end && *p != '\r' && *p != '\n')
+ p++;
+
+ while (1) {
+ // Skip whitespace
+ while (p < end && (*p == '\n' || *p == '\r' || *p == ' ' || *p == '\t'))
+ p++;
+
+ if (p == end)
+ break;
+
+ const UChar* lineStart = p;
+
+ // Find the end of the line
+ while (p < end && *p != '\r' && *p != '\n')
+ p++;
+
+ // Check if we have a comment
+ if (*lineStart == '#')
+ continue;
+
+ // Get rid of trailing whitespace
+ const UChar* tmp = p - 1;
+ while (tmp > lineStart && (*tmp == ' ' || *tmp == '\t'))
+ tmp--;
+
+ String line(lineStart, tmp - lineStart + 1);
+
+ if (line == "CACHE:")
+ mode = Explicit;
+ else if (line == "FALLBACK:")
+ mode = Fallback;
+ else if (line == "NETWORK:")
+ mode = OnlineWhitelist;
+ else if (line.endsWith(":"))
+ mode = Unknown;
+ else if (mode == Unknown)
+ continue;
+ else if (mode == Explicit || mode == OnlineWhitelist) {
+ const UChar* p = line.characters();
+ const UChar* lineEnd = p + line.length();
+
+ // Look for whitespace separating the URL from subsequent ignored tokens.
+ while (p < lineEnd && *p != '\t' && *p != ' ')
+ p++;
+
+ if (mode == OnlineWhitelist && p - line.characters() == 1 && *line.characters() == '*') {
+ // Wildcard was found.
+ manifest.allowAllNetworkRequests = true;
+ continue;
+ }
+
+ KURL url(manifestURL, String(line.characters(), p - line.characters()));
+
+ if (!url.isValid())
+ continue;
+
+ if (url.hasFragmentIdentifier())
+ url.removeFragmentIdentifier();
+
+ if (!equalIgnoringCase(url.protocol(), manifestURL.protocol()))
+ continue;
+
+ if (mode == Explicit && manifestURL.protocolIs("https") && !protocolHostAndPortAreEqual(manifestURL, url))
+ continue;
+
+ if (mode == Explicit)
+ manifest.explicitURLs.add(url.string());
+ else
+ manifest.onlineWhitelistedURLs.append(url);
+
+ } else if (mode == Fallback) {
+ const UChar* p = line.characters();
+ const UChar* lineEnd = p + line.length();
+
+ // Look for whitespace separating the two URLs
+ while (p < lineEnd && *p != '\t' && *p != ' ')
+ p++;
+
+ if (p == lineEnd) {
+ // There was no whitespace separating the URLs.
+ continue;
+ }
+
+ KURL namespaceURL(manifestURL, String(line.characters(), p - line.characters()));
+ if (!namespaceURL.isValid())
+ continue;
+ if (namespaceURL.hasFragmentIdentifier())
+ namespaceURL.removeFragmentIdentifier();
+
+ if (!protocolHostAndPortAreEqual(manifestURL, namespaceURL))
+ continue;
+
+ // Skip whitespace separating fallback namespace from URL.
+ while (p < lineEnd && (*p == '\t' || *p == ' '))
+ p++;
+
+ // Look for whitespace separating the URL from subsequent ignored tokens.
+ const UChar* fallbackStart = p;
+ while (p < lineEnd && *p != '\t' && *p != ' ')
+ p++;
+
+ KURL fallbackURL(manifestURL, String(fallbackStart, p - fallbackStart));
+ if (!fallbackURL.isValid())
+ continue;
+ if (fallbackURL.hasFragmentIdentifier())
+ fallbackURL.removeFragmentIdentifier();
+
+ if (!protocolHostAndPortAreEqual(manifestURL, fallbackURL))
+ continue;
+
+ manifest.fallbackURLs.append(make_pair(namespaceURL, fallbackURL));
+ } else
+ ASSERT_NOT_REACHED();
+ }
+
+ return true;
+}
+
+}
+
+#endif // ENABLE(OFFLINE_WEB_APPLICATIONS)