2007-03-22 10:30:00 -07:00
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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2012-05-21 04:12:37 -07:00
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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2007-03-22 10:30:00 -07:00
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#include "nsAboutCacheEntry.h"
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#include "nsICacheService.h"
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2012-09-18 11:06:35 -07:00
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#include "nsICacheSession.h"
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2007-03-22 10:30:00 -07:00
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#include "nsNetUtil.h"
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#include "prprf.h"
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#include "nsEscape.h"
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2013-09-23 10:29:27 -07:00
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#include "nsIAsyncInputStream.h"
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#include "nsIAsyncOutputStream.h"
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2013-01-15 04:22:03 -08:00
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#include <algorithm>
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2007-03-22 10:30:00 -07:00
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#define HEXDUMP_MAX_ROWS 16
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static void
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2012-08-22 08:56:38 -07:00
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HexDump(uint32_t *state, const char *buf, int32_t n, nsCString &result)
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2007-03-22 10:30:00 -07:00
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{
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char temp[16];
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const unsigned char *p;
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while (n) {
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PR_snprintf(temp, sizeof(temp), "%08x: ", *state);
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result.Append(temp);
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*state += HEXDUMP_MAX_ROWS;
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p = (const unsigned char *) buf;
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2013-01-15 04:22:03 -08:00
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int32_t i, row_max = std::min(HEXDUMP_MAX_ROWS, n);
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2007-03-22 10:30:00 -07:00
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// print hex codes:
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for (i = 0; i < row_max; ++i) {
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PR_snprintf(temp, sizeof(temp), "%02x ", *p++);
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result.Append(temp);
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}
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for (i = row_max; i < HEXDUMP_MAX_ROWS; ++i) {
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result.AppendLiteral(" ");
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}
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// print ASCII glyphs if possible:
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p = (const unsigned char *) buf;
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for (i = 0; i < row_max; ++i, ++p) {
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switch (*p) {
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case '<':
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result.AppendLiteral("<");
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break;
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case '>':
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result.AppendLiteral(">");
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break;
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case '&':
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result.AppendLiteral("&");
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break;
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default:
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if (*p < 0x7F && *p > 0x1F) {
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result.Append(*p);
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} else {
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result.Append('.');
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}
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}
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}
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result.Append('\n');
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buf += row_max;
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n -= row_max;
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}
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}
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//-----------------------------------------------------------------------------
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// nsAboutCacheEntry::nsISupports
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NS_IMPL_ISUPPORTS2(nsAboutCacheEntry,
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nsIAboutModule,
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nsICacheMetaDataVisitor)
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//-----------------------------------------------------------------------------
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// nsAboutCacheEntry::nsIAboutModule
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NS_IMETHODIMP
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nsAboutCacheEntry::NewChannel(nsIURI *uri, nsIChannel **result)
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{
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NS_ENSURE_ARG_POINTER(uri);
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nsresult rv;
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nsCOMPtr<nsIInputStream> stream;
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rv = GetContentStream(uri, getter_AddRefs(stream));
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if (NS_FAILED(rv)) return rv;
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return NS_NewInputStreamChannel(result, uri, stream,
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2010-07-02 13:56:09 -07:00
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NS_LITERAL_CSTRING("text/html"),
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2007-03-22 10:30:00 -07:00
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NS_LITERAL_CSTRING("utf-8"));
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}
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NS_IMETHODIMP
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2012-08-22 08:56:38 -07:00
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nsAboutCacheEntry::GetURIFlags(nsIURI *aURI, uint32_t *result)
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2007-03-22 10:30:00 -07:00
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{
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2010-01-23 02:07:48 -08:00
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*result = nsIAboutModule::HIDE_FROM_ABOUTABOUT;
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2007-03-22 10:30:00 -07:00
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return NS_OK;
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}
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//-----------------------------------------------------------------------------
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// nsAboutCacheEntry
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nsresult
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nsAboutCacheEntry::GetContentStream(nsIURI *uri, nsIInputStream **result)
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{
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nsresult rv;
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// Init: (block size, maximum length)
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2012-09-18 11:06:35 -07:00
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nsCOMPtr<nsIAsyncInputStream> inputStream;
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rv = NS_NewPipe2(getter_AddRefs(inputStream),
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getter_AddRefs(mOutputStream),
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true, false,
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2012-09-27 23:57:33 -07:00
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256, UINT32_MAX);
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2007-03-22 10:30:00 -07:00
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if (NS_FAILED(rv)) return rv;
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2012-09-18 11:06:35 -07:00
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NS_NAMED_LITERAL_CSTRING(
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buffer,
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2010-07-02 13:56:09 -07:00
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"<!DOCTYPE html>\n"
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"<html>\n"
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"<head>\n"
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" <title>Cache entry information</title>\n"
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" <link rel=\"stylesheet\" "
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"href=\"chrome://global/skin/about.css\" type=\"text/css\"/>\n"
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" <link rel=\"stylesheet\" "
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"href=\"chrome://global/skin/aboutCacheEntry.css\" type=\"text/css\"/>\n"
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"</head>\n"
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"<body>\n"
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"<h1>Cache entry information</h1>\n");
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2012-09-18 11:06:35 -07:00
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uint32_t n;
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rv = mOutputStream->Write(buffer.get(), buffer.Length(), &n);
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2007-03-22 10:30:00 -07:00
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if (NS_FAILED(rv)) return rv;
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2012-09-18 11:06:35 -07:00
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if (n != buffer.Length()) return NS_ERROR_UNEXPECTED;
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2007-03-22 10:30:00 -07:00
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2012-09-18 11:06:35 -07:00
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rv = OpenCacheEntry(uri);
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2007-03-22 10:30:00 -07:00
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if (NS_FAILED(rv)) return rv;
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2012-09-18 11:06:35 -07:00
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*result = inputStream.forget().get();
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return NS_OK;
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2007-03-22 10:30:00 -07:00
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}
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nsresult
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2012-09-18 11:06:35 -07:00
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nsAboutCacheEntry::OpenCacheEntry(nsIURI *uri)
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2007-03-22 10:30:00 -07:00
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{
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nsresult rv;
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2012-09-01 19:35:17 -07:00
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nsAutoCString clientID, key;
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2011-09-28 23:19:26 -07:00
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bool streamBased = true;
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2007-03-22 10:30:00 -07:00
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rv = ParseURI(uri, clientID, streamBased, key);
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if (NS_FAILED(rv)) return rv;
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nsCOMPtr<nsICacheService> serv =
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do_GetService(NS_CACHESERVICE_CONTRACTID, &rv);
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if (NS_FAILED(rv)) return rv;
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nsCOMPtr<nsICacheSession> session;
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rv = serv->CreateSession(clientID.get(),
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nsICache::STORE_ANYWHERE,
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streamBased,
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getter_AddRefs(session));
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if (NS_FAILED(rv)) return rv;
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2011-10-17 07:59:28 -07:00
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rv = session->SetDoomEntriesIfExpired(false);
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2007-03-22 10:30:00 -07:00
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if (NS_FAILED(rv)) return rv;
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2012-09-18 11:06:35 -07:00
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return session->AsyncOpenCacheEntry(key, nsICache::ACCESS_READ, this, true);
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2007-03-22 10:30:00 -07:00
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}
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//-----------------------------------------------------------------------------
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// helper methods
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//-----------------------------------------------------------------------------
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2012-08-22 08:56:38 -07:00
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static PRTime SecondsToPRTime(uint32_t t_sec)
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2007-03-22 10:30:00 -07:00
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{
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PRTime t_usec, usec_per_sec;
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2012-10-12 10:29:11 -07:00
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t_usec = t_sec;
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usec_per_sec = PR_USEC_PER_SEC;
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return t_usec *= usec_per_sec;
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2007-03-22 10:30:00 -07:00
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}
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2012-08-22 08:56:38 -07:00
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static void PrintTimeString(char *buf, uint32_t bufsize, uint32_t t_sec)
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2007-03-22 10:30:00 -07:00
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{
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PRExplodedTime et;
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PRTime t_usec = SecondsToPRTime(t_sec);
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PR_ExplodeTime(t_usec, PR_LocalTimeParameters, &et);
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PR_FormatTime(buf, bufsize, "%Y-%m-%d %H:%M:%S", &et);
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}
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#define APPEND_ROW(label, value) \
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PR_BEGIN_MACRO \
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2010-07-02 13:56:09 -07:00
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buffer.AppendLiteral(" <tr>\n" \
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" <th>"); \
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2007-03-22 10:30:00 -07:00
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buffer.AppendLiteral(label); \
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2010-07-02 13:56:09 -07:00
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buffer.AppendLiteral(":</th>\n" \
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" <td>"); \
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2007-03-22 10:30:00 -07:00
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buffer.Append(value); \
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2010-07-02 13:56:09 -07:00
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buffer.AppendLiteral("</td>\n" \
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" </tr>\n"); \
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2007-03-22 10:30:00 -07:00
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PR_END_MACRO
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nsresult
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2012-09-18 11:06:35 -07:00
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nsAboutCacheEntry::WriteCacheEntryDescription(nsICacheEntryDescriptor *descriptor)
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2007-03-22 10:30:00 -07:00
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{
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nsresult rv;
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nsCString buffer;
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2012-08-22 08:56:38 -07:00
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uint32_t n;
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2007-03-22 10:30:00 -07:00
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2012-09-01 19:35:17 -07:00
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nsAutoCString str;
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2007-03-22 10:30:00 -07:00
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rv = descriptor->GetKey(str);
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if (NS_FAILED(rv)) return rv;
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buffer.SetCapacity(4096);
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2010-07-02 13:56:09 -07:00
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buffer.AssignLiteral("<table>\n"
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" <tr>\n"
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" <th>key:</th>\n"
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" <td id=\"td-key\">");
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2007-03-22 10:30:00 -07:00
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// Test if the key is actually a URI
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nsCOMPtr<nsIURI> uri;
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2011-09-28 23:19:26 -07:00
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bool isJS = false;
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bool isData = false;
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2007-03-22 10:30:00 -07:00
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rv = NS_NewURI(getter_AddRefs(uri), str);
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// javascript: and data: URLs should not be linkified
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// since clicking them can cause scripts to run - bug 162584
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if (NS_SUCCEEDED(rv)) {
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uri->SchemeIs("javascript", &isJS);
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uri->SchemeIs("data", &isData);
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}
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char* escapedStr = nsEscapeHTML(str.get());
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if (NS_SUCCEEDED(rv) && !(isJS || isData)) {
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buffer.AppendLiteral("<a href=\"");
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buffer.Append(escapedStr);
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buffer.AppendLiteral("\">");
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buffer.Append(escapedStr);
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buffer.AppendLiteral("</a>");
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uri = 0;
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}
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else
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buffer.Append(escapedStr);
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nsMemory::Free(escapedStr);
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2010-07-02 13:56:09 -07:00
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buffer.AppendLiteral("</td>\n"
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" </tr>\n");
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2007-03-22 10:30:00 -07:00
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// temp vars for reporting
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char timeBuf[255];
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2012-08-22 08:56:38 -07:00
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uint32_t u = 0;
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int32_t i = 0;
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2012-09-01 19:35:17 -07:00
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nsAutoCString s;
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2007-03-22 10:30:00 -07:00
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// Fetch Count
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s.Truncate();
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descriptor->GetFetchCount(&i);
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s.AppendInt(i);
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APPEND_ROW("fetch count", s);
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// Last Fetched
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descriptor->GetLastFetched(&u);
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if (u) {
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PrintTimeString(timeBuf, sizeof(timeBuf), u);
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APPEND_ROW("last fetched", timeBuf);
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} else {
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APPEND_ROW("last fetched", "No last fetch time");
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}
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// Last Modified
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descriptor->GetLastModified(&u);
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if (u) {
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PrintTimeString(timeBuf, sizeof(timeBuf), u);
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APPEND_ROW("last modified", timeBuf);
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} else {
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APPEND_ROW("last modified", "No last modified time");
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}
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// Expiration Time
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descriptor->GetExpirationTime(&u);
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if (u < 0xFFFFFFFF) {
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PrintTimeString(timeBuf, sizeof(timeBuf), u);
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APPEND_ROW("expires", timeBuf);
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} else {
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APPEND_ROW("expires", "No expiration time");
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}
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// Data Size
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s.Truncate();
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2012-08-22 08:56:38 -07:00
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uint32_t dataSize;
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2011-12-17 02:30:29 -08:00
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descriptor->GetStorageDataSize(&dataSize);
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2012-08-22 08:56:38 -07:00
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s.AppendInt((int32_t)dataSize); // XXX nsICacheEntryInfo interfaces should be fixed.
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2007-03-22 10:30:00 -07:00
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APPEND_ROW("Data size", s);
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// Storage Policy
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// XXX Stream Based?
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// XXX Cache Device
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// File on disk
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nsCOMPtr<nsIFile> cacheFile;
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|
|
rv = descriptor->GetFile(getter_AddRefs(cacheFile));
|
|
|
|
|
if (NS_SUCCEEDED(rv)) {
|
|
|
|
|
nsAutoString filePath;
|
|
|
|
|
cacheFile->GetPath(filePath);
|
|
|
|
|
APPEND_ROW("file on disk", NS_ConvertUTF16toUTF8(filePath));
|
|
|
|
|
}
|
|
|
|
|
else
|
|
|
|
|
APPEND_ROW("file on disk", "none");
|
|
|
|
|
|
|
|
|
|
// Security Info
|
|
|
|
|
nsCOMPtr<nsISupports> securityInfo;
|
|
|
|
|
descriptor->GetSecurityInfo(getter_AddRefs(securityInfo));
|
|
|
|
|
if (securityInfo) {
|
|
|
|
|
APPEND_ROW("Security", "This is a secure document.");
|
|
|
|
|
} else {
|
|
|
|
|
APPEND_ROW("Security",
|
|
|
|
|
"This document does not have any security info associated with it.");
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
buffer.AppendLiteral("</table>\n"
|
2010-07-02 13:56:09 -07:00
|
|
|
"<hr/>\n"
|
|
|
|
|
"<table>\n");
|
2007-03-22 10:30:00 -07:00
|
|
|
// Meta Data
|
|
|
|
|
// let's just look for some well known (HTTP) meta data tags, for now.
|
|
|
|
|
|
|
|
|
|
// Client ID
|
|
|
|
|
nsXPIDLCString str2;
|
|
|
|
|
descriptor->GetClientID(getter_Copies(str2));
|
|
|
|
|
if (!str2.IsEmpty()) APPEND_ROW("Client", str2);
|
|
|
|
|
|
|
|
|
|
|
2010-07-02 13:56:09 -07:00
|
|
|
mBuffer = &buffer; // make it available for VisitMetaDataElement().
|
|
|
|
|
// nsCacheEntryDescriptor::VisitMetaData calls
|
|
|
|
|
// nsCacheEntry.h VisitMetaDataElements, which returns
|
|
|
|
|
// nsCacheMetaData::VisitElements, which calls
|
|
|
|
|
// nsAboutCacheEntry::VisitMetaDataElement (below) in a loop.
|
2007-03-22 10:30:00 -07:00
|
|
|
descriptor->VisitMetaData(this);
|
2012-07-30 07:20:58 -07:00
|
|
|
mBuffer = nullptr;
|
2007-03-22 10:30:00 -07:00
|
|
|
|
2010-07-02 13:56:09 -07:00
|
|
|
buffer.AppendLiteral("</table>\n");
|
2012-09-18 11:06:35 -07:00
|
|
|
mOutputStream->Write(buffer.get(), buffer.Length(), &n);
|
2007-03-22 10:30:00 -07:00
|
|
|
|
|
|
|
|
buffer.Truncate();
|
|
|
|
|
|
|
|
|
|
// Provide a hexdump of the data
|
2010-07-02 13:56:09 -07:00
|
|
|
if (dataSize) { // don't draw an <hr> if the Data Size is 0.
|
|
|
|
|
nsCOMPtr<nsIInputStream> stream;
|
|
|
|
|
descriptor->OpenInputStream(0, getter_AddRefs(stream));
|
|
|
|
|
if (stream) {
|
|
|
|
|
buffer.AssignLiteral("<hr/>\n"
|
|
|
|
|
"<pre>");
|
2012-08-22 08:56:38 -07:00
|
|
|
uint32_t hexDumpState = 0;
|
2010-07-02 13:56:09 -07:00
|
|
|
char chunk[4096];
|
2011-12-17 02:30:29 -08:00
|
|
|
while(NS_SUCCEEDED(stream->Read(chunk, sizeof(chunk), &n)) &&
|
|
|
|
|
n > 0) {
|
2010-07-02 13:56:09 -07:00
|
|
|
HexDump(&hexDumpState, chunk, n, buffer);
|
2012-09-18 11:06:35 -07:00
|
|
|
mOutputStream->Write(buffer.get(), buffer.Length(), &n);
|
2010-07-02 13:56:09 -07:00
|
|
|
buffer.Truncate();
|
|
|
|
|
}
|
|
|
|
|
buffer.AssignLiteral("</pre>\n");
|
2012-09-18 11:06:35 -07:00
|
|
|
mOutputStream->Write(buffer.get(), buffer.Length(), &n);
|
2010-07-02 13:56:09 -07:00
|
|
|
}
|
2007-03-22 10:30:00 -07:00
|
|
|
}
|
|
|
|
|
return NS_OK;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
nsresult
|
2012-09-18 11:06:35 -07:00
|
|
|
nsAboutCacheEntry::WriteCacheEntryUnavailable()
|
2007-03-22 10:30:00 -07:00
|
|
|
{
|
2012-08-22 08:56:38 -07:00
|
|
|
uint32_t n;
|
2007-03-22 10:30:00 -07:00
|
|
|
NS_NAMED_LITERAL_CSTRING(buffer,
|
|
|
|
|
"The cache entry you selected is not available.");
|
2012-09-18 11:06:35 -07:00
|
|
|
mOutputStream->Write(buffer.get(), buffer.Length(), &n);
|
2007-03-22 10:30:00 -07:00
|
|
|
return NS_OK;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
nsresult
|
|
|
|
|
nsAboutCacheEntry::ParseURI(nsIURI *uri, nsCString &clientID,
|
2011-09-28 23:19:26 -07:00
|
|
|
bool &streamBased, nsCString &key)
|
2007-03-22 10:30:00 -07:00
|
|
|
{
|
|
|
|
|
//
|
|
|
|
|
// about:cache-entry?client=[string]&sb=[boolean]&key=[string]
|
|
|
|
|
//
|
|
|
|
|
nsresult rv;
|
|
|
|
|
|
2012-09-01 19:35:17 -07:00
|
|
|
nsAutoCString path;
|
2007-03-22 10:30:00 -07:00
|
|
|
rv = uri->GetPath(path);
|
|
|
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
|
|
|
|
|
|
nsACString::const_iterator i1, i2, i3, end;
|
|
|
|
|
path.BeginReading(i1);
|
|
|
|
|
path.EndReading(end);
|
|
|
|
|
|
|
|
|
|
i2 = end;
|
|
|
|
|
if (!FindInReadable(NS_LITERAL_CSTRING("?client="), i1, i2))
|
|
|
|
|
return NS_ERROR_FAILURE;
|
|
|
|
|
// i2 points to the start of clientID
|
|
|
|
|
|
|
|
|
|
i1 = i2;
|
|
|
|
|
i3 = end;
|
|
|
|
|
if (!FindInReadable(NS_LITERAL_CSTRING("&sb="), i1, i3))
|
|
|
|
|
return NS_ERROR_FAILURE;
|
|
|
|
|
// i1 points to the end of clientID
|
|
|
|
|
// i3 points to the start of isStreamBased
|
|
|
|
|
|
|
|
|
|
clientID.Assign(Substring(i2, i1));
|
|
|
|
|
|
|
|
|
|
i1 = i3;
|
|
|
|
|
i2 = end;
|
|
|
|
|
if (!FindInReadable(NS_LITERAL_CSTRING("&key="), i1, i2))
|
|
|
|
|
return NS_ERROR_FAILURE;
|
|
|
|
|
// i1 points to the end of isStreamBased
|
|
|
|
|
// i2 points to the start of key
|
|
|
|
|
|
|
|
|
|
streamBased = FindCharInReadable('1', i3, i1);
|
|
|
|
|
key.Assign(Substring(i2, end));
|
|
|
|
|
|
|
|
|
|
return NS_OK;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
|
// nsICacheMetaDataVisitor implementation
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
|
|
|
|
nsAboutCacheEntry::VisitMetaDataElement(const char * key,
|
|
|
|
|
const char * value,
|
2011-09-28 23:19:26 -07:00
|
|
|
bool * keepGoing)
|
2007-03-22 10:30:00 -07:00
|
|
|
{
|
2010-07-02 13:56:09 -07:00
|
|
|
mBuffer->AppendLiteral(" <tr>\n"
|
|
|
|
|
" <th>");
|
2007-03-22 10:30:00 -07:00
|
|
|
mBuffer->Append(key);
|
2010-07-02 13:56:09 -07:00
|
|
|
mBuffer->AppendLiteral(":</th>\n"
|
|
|
|
|
" <td>");
|
2007-03-22 10:30:00 -07:00
|
|
|
char* escapedValue = nsEscapeHTML(value);
|
|
|
|
|
mBuffer->Append(escapedValue);
|
|
|
|
|
nsMemory::Free(escapedValue);
|
2010-07-02 13:56:09 -07:00
|
|
|
mBuffer->AppendLiteral("</td>\n"
|
|
|
|
|
" </tr>\n");
|
2007-03-22 10:30:00 -07:00
|
|
|
|
2011-10-17 07:59:28 -07:00
|
|
|
*keepGoing = true;
|
2007-03-22 10:30:00 -07:00
|
|
|
return NS_OK;
|
|
|
|
|
}
|
2012-09-18 11:06:35 -07:00
|
|
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
|
// nsICacheListener implementation
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
|
|
|
|
nsAboutCacheEntry::OnCacheEntryAvailable(nsICacheEntryDescriptor *entry,
|
|
|
|
|
nsCacheAccessMode access,
|
|
|
|
|
nsresult status)
|
|
|
|
|
{
|
|
|
|
|
nsresult rv;
|
|
|
|
|
|
|
|
|
|
if (entry)
|
|
|
|
|
rv = WriteCacheEntryDescription(entry);
|
|
|
|
|
else
|
|
|
|
|
rv = WriteCacheEntryUnavailable();
|
|
|
|
|
if (NS_FAILED(rv)) return rv;
|
|
|
|
|
|
2012-10-01 13:04:09 -07:00
|
|
|
uint32_t n;
|
2012-09-18 11:06:35 -07:00
|
|
|
NS_NAMED_LITERAL_CSTRING(buffer, "</body>\n</html>\n");
|
|
|
|
|
mOutputStream->Write(buffer.get(), buffer.Length(), &n);
|
|
|
|
|
mOutputStream->Close();
|
|
|
|
|
mOutputStream = nullptr;
|
|
|
|
|
|
|
|
|
|
return NS_OK;
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
NS_IMETHODIMP
|
|
|
|
|
nsAboutCacheEntry::OnCacheEntryDoomed(nsresult status)
|
|
|
|
|
{
|
|
|
|
|
return NS_ERROR_NOT_IMPLEMENTED;
|
|
|
|
|
}
|
