/*
* Copyright (C) 2001 Matt Aubury, Philip Langdale
* Copyright (C) 2004 Crispin Flowerday
* Copyright (C) 2005 Christian Persch
* Copyright (C) 2005 Adam Hooper
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Id$
*/
#include "mozilla-config.h"
#include "config.h"
#include <string.h>
#include <glib/gi18n.h>
#include <gtk/gtk.h>
// we need nsEscape which depends on internal strings :(((
#define MOZILLA_INTERNAL_API 1
#include <nsString.h>
#include <nsAutoPtr.h>
#include <nsCOMPtr.h>
#include <nsEscape.h>
#include <nsIChannel.h>
#include <nsIInputStreamChannel.h>
#include <nsIInputStream.h>
#include <nsIIOService.h>
#include <nsIOutputStream.h>
#include <nsIScriptSecurityManager.h>
#include <nsIStorageStream.h>
#include <nsIURI.h>
#include <nsNetCID.h>
#include <nsNetUtil.h>
#include <nsServiceManagerUtils.h>
#include "ephy-debug.h"
#include "EphyRedirectChannel.h"
#include "EphyAboutModule.h"
EphyAboutModule::EphyAboutModule()
{
LOG ("EphyAboutModule ctor [%p]\n", this);
}
EphyAboutModule::~EphyAboutModule()
{
LOG ("EphyAboutModule dtor [%p]\n", this);
}
NS_IMPL_ISUPPORTS1 (EphyAboutModule, nsIAboutModule)
/* nsIChannel newChannel (in nsIURI aURI); */
NS_IMETHODIMP
EphyAboutModule::NewChannel(nsIURI *aURI,
nsIChannel **_retval)
{
NS_ENSURE_ARG(aURI);
nsCAutoString path;
aURI->GetPath (path);
if (strncmp (path.get(), "neterror?", strlen ("neterror?")) == 0)
{
return CreateErrorPage (aURI, _retval);
}
if (strncmp (path.get (), "recover?", strlen ("recover?")) == 0)
{
return CreateRecoverPage (aURI, _retval);
}
if (strcmp (path.get (), "epiphany") == 0)
{
return Redirect (nsDependentCString ("file://" SHARE_DIR "/epiphany.xhtml"), _retval);
}
return NS_ERROR_ILLEGAL_VALUE;
}
/* private functions */
nsresult
EphyAboutModule::Redirect(const nsACString &aURL,
nsIChannel **_retval)
{
*_retval = nsnull;
nsresult rv;
nsCOMPtr<nsIURI> uri;
rv = NS_NewURI (getter_AddRefs (uri), aURL);
NS_ENSURE_SUCCESS (rv, rv);
nsCOMPtr<nsIChannel> tempChannel;
rv = NS_NewChannel (getter_AddRefs (tempChannel), uri);
NS_ENSURE_SUCCESS (rv, rv);
tempChannel->SetOriginalURI (uri);
nsCOMPtr<nsIScriptSecurityManager> securityManager =
do_GetService(NS_SCRIPTSECURITYMANAGER_CONTRACTID, &rv);
NS_ENSURE_SUCCESS (rv, rv);
nsCOMPtr<nsIPrincipal> principal;
rv = securityManager->GetCodebasePrincipal(uri, getter_AddRefs(principal));
NS_ENSURE_SUCCESS (rv, rv);
rv = tempChannel->SetOwner(principal);
NS_ENSURE_SUCCESS (rv, rv);
tempChannel.swap (*_retval);
return NS_OK;
}
nsresult
EphyAboutModule::ParseURL(const char *aURL,
nsACString &aCode,
nsACString &aRawOriginURL,
nsACString &aOriginURL,
nsACString &aOriginCharset,
nsACString &aTitle)
{
/* The page URL is of the form "about:neterror?e=<errorcode>&u=<URL>&c=<charset>&d=<description>" */
const char *query = strstr (aURL, "?");
if (!query) return NS_ERROR_FAILURE;
/* skip the '?' */
++query;
char **params = g_strsplit (query, "&", -1);
if (!params) return NS_ERROR_FAILURE;
for (PRUint32 i = 0; params[i] != NULL; ++i)
{
char *param = params[i];
if (strlen (param) <= 2) continue;
switch (param[0])
{
case 'e':
aCode.Assign (nsUnescape (param + 2));
break;
case 'u':
aRawOriginURL.Assign (param + 2);
aOriginURL.Assign (nsUnescape (param + 2));
break;
case 'c':
aOriginCharset.Assign (nsUnescape (param + 2));
break;
/* The next one is not used in neterror but recover: */
case 't':
aTitle.Assign (nsUnescape (param + 2));
break;
case 'd':
/* we don't need mozilla's description parameter */
default:
break;
}
}
g_strfreev (params);
return NS_OK;
}
nsresult
EphyAboutModule::GetErrorMessage(nsIURI *aURI,
const char *aError,
char **aStockIcon,
char **aTitle,
char **aPrimary,
char **aSecondary,
char **aTertiary,
char **aLinkIntro)
{
*aStockIcon = GTK_STOCK_DIALOG_ERROR;
if (strcmp (aError, "protocolNotFound") == 0)
{
nsCAutoString scheme;
aURI->GetScheme (scheme);
/* Translators: %s is the name of a protocol, like "http" etc. */
*aTitle = g_strdup_printf (_("“%s” Protocol is not Supported"), scheme.get());
/* Translators: %s is the name of a protocol, like "http" etc. */
*aPrimary = g_strdup_printf (_("“%s” protocol is not supported."), scheme.get());
/* FIXME: get the list of supported protocols from necko */
*aSecondary = _("Supported protocols are “http”, “https”, “ftp”, “file”, “smb” "
"and “sftp”.");
}
else if (strcmp (aError, "fileNotFound") == 0)
{
nsCAutoString path;
aURI->GetPath (path);
/* Translators: %s is the path and filename, for example "/home/user/test.html" */
*aTitle = g_markup_printf_escaped (_("File “%s” not Found"), path.get());
/* Translators: %s is the path and filename, for example "/home/user/test.html" */
*aPrimary = g_markup_printf_escaped (_("File “%s” not found."), path.get());
*aSecondary = _("Check the location of the file and try again.");
}
else if (strcmp (aError, "dnsNotFound") == 0)
{
nsCAutoString host;
aURI->GetHost (host);
/* Translators: %s is the hostname, like "www.example.com" */
*aTitle = g_markup_printf_escaped (_("“%s” Could not be Found"),
host.get());
/* Translators: %s is the hostname, like "www.example.com" */
*aPrimary = g_markup_printf_escaped (_("“%s” could not be found."),
host.get());
*aSecondary = _("Check that you are connected to the internet, and "
"that the address is correct.");
*aLinkIntro = _("If this page used to exist, you may find an archived version:");
}
else if (strcmp (aError, "connectionFailure") == 0)
{
nsCAutoString host;
aURI->GetHost (host);
/* Translators: %s is the hostname, like "www.example.com" */
*aTitle = g_markup_printf_escaped
(_("“%s” Refused the Connection"),
host.get());
/* Translators: %s is the hostname, like "www.example.com" */
*aPrimary = g_markup_printf_escaped
(_("“%s” refused the connection."),
host.get());
/* FIXME what about 127.0.0.* ? */
if (strcmp (host.get(), "localhost") == 0)
{
PRInt32 port;
aURI->GetPort (&port);
*aSecondary = _("Likely causes of the problem are");
/* Try to get the service name attached to that port */
if (port != -1)
{
struct servent *serv;
if ((serv = getservbyport (htons (port), NULL)) != NULL)
{
*aTertiary = g_markup_printf_escaped (
_("<ul>"
"<li>the service ""%s"" isn't started.</li>"
"Try to start it using the Services Configuration Tool in "
"Desktop > System Settings > Server Settings > Services, or</ul>"
"<ul><li>the port number %d is wrong.</li>"
"</ul>"),
serv->s_name, port);
}
else
{
*aTertiary = g_markup_printf_escaped (
_("<ul>"
"<li>some service isn't started, or</li>"
"<li>the port number %d is wrong.</li>"
"</ul>"),
port);
}
}
else
{
*aTertiary = _("<ul>"
"<li>some service isn't started, or</li>"
"<li>you got the port number wrong.</li>"
"</ul>");
}
}
else
{
*aSecondary = _("The server may be busy or you may have a "
"network connection problem. Try again later.");
*aLinkIntro = _("There may be an old version of the page you wanted:");
}
}
else if (strcmp (aError, "netInterrupt") == 0)
{
nsCAutoString host;
aURI->GetHost (host);
/* Translators: %s is the hostname, like "www.example.com" */
*aTitle = g_markup_printf_escaped
(_("“%s” Interrupted the Connection"),
host.get());
/* Translators: %s is the hostname, like "www.example.com" */
*aPrimary = g_markup_printf_escaped
(_("“%s” interrupted the connection."),
host.get());
*aSecondary = _("The server may be busy or you may have a "
"network connection problem. Try again later.");
*aLinkIntro = _("There may be an old version of the page you wanted:");
}
else if (strcmp (aError, "netTimeout") == 0)
{
nsCAutoString host;
aURI->GetHost (host);
/* Translators: %s is the hostname, like "www.example.com" */
*aTitle = g_markup_printf_escaped
(_("“%s” is not Responding"),
host.get());
/* Translators: %s is the hostname, like "www.example.com" */
*aPrimary = g_markup_printf_escaped
(_("“%s” is not responding."),
host.get());
*aSecondary = _("The connection was lost because the "
"server took too long to respond.");
*aTertiary = _("The server may be busy or you may have a network "
"connection problem. Try again later.");
*aLinkIntro = _("There may be an old version of the page you wanted:");
}
else if (strcmp (aError, "malformedURI") == 0)
{
*aTitle = g_strdup (_("Invalid Address"));
*aPrimary = g_strdup (_("Invalid address."));
*aSecondary = g_strdup (_("The address you entered is not valid."));
}
else if (strcmp (aError, "redirectLoop") == 0)
{
nsCAutoString host;
aURI->GetHost (host);
/* Translators: %s is the hostname, like "www.example.com" */
*aTitle = g_markup_printf_escaped
(_("“%s” Redirected Too Many Times"),
host.get());
/* Translators: %s is the hostname, like "www.example.com" */
*aPrimary = g_markup_printf_escaped
(_("“%s” redirected too many times."),
host.get());
*aSecondary = _("The redirection has been stopped for security reasons.");
*aLinkIntro = _("There may be an old version of the page you wanted:");
}
else if (strcmp (aError, "unknownSocketType") == 0)
{
nsCAutoString host;
aURI->GetHost (host);
/* Translators: %s is the hostname, like "www.example.com" */
*aTitle = g_markup_printf_escaped
(_("“%s” Requires an Encrypted Connection"),
host.get());
/* Translators: %s is the hostname, like "www.example.com" */
*aPrimary = g_markup_printf_escaped
(_("“%s” requires an encrypted connection."),
host.get());
*aSecondary = _("The document could not be loaded because "
"encryption support is not installed.");
}
else if (strcmp (aError, "netReset") == 0)
{
nsCAutoString host;
aURI->GetHost (host);
/* Translators: %s is the hostname, like "www.example.com" */
*aTitle = g_markup_printf_escaped
(_("“%s” Dropped the Connection"),
host.get());
/* Translators: %s is the hostname, like "www.example.com" */
*aPrimary = g_markup_printf_escaped
(_("“%s” dropped the connection."),
host.get());
*aSecondary = _("The server dropped the connection "
"before any data could be read.");
*aTertiary = _("The server may be busy or you may have a "
"network connection problem. Try again later.");
*aLinkIntro = _("There may be an old version of the page you wanted:");
}
else if (strcmp (aError, "netOffline") == 0)
{
/* Error is a bit too strong here */
*aStockIcon = GTK_STOCK_DIALOG_INFO;
*aTitle = g_strdup (_("Cannot Load Document Whilst Working Offline"));
*aPrimary = g_strdup (_("Cannot load document whilst working offline."));
*aSecondary = _("To view this document, disable “Work Offline” and try again.");
}
else if (strcmp (aError, "deniedPortAccess") == 0)
{
nsCAutoString host;
aURI->GetHost (host);
PRInt32 port = -1;
aURI->GetPort (&port);
/* Translators: %s is the hostname, like "www.example.com" */
*aTitle = g_markup_printf_escaped
(_("“%s” Denied Access to Port “%d”"),
host.get(), port > 0 ? port : 80);
/* Translators: %s is the hostname, like "www.example.com" */
*aPrimary = g_markup_printf_escaped
(_("“%s” denied access to port “%d”."),
host.get(), port > 0 ? port : 80);
*aSecondary = g_strdup (_("The server dropped the connection "
"before any data could be read."));
*aTertiary = _("The server may be busy or you may have a "
"network connection problem. Try again later.");
*aLinkIntro = _("There may be an old version of the page you wanted:");
}
else if (strcmp (aError, "proxyResolveFailure") == 0 ||
strcmp (aError, "proxyConnectFailure") == 0)
{
*aTitle = g_strdup (_("Could not Connect to Proxy Server"));
*aPrimary = g_strdup (_("Could not connect to proxy server."));
*aSecondary = _("Check your proxy server settings. "
"If the connection still fails, there may be "
"a problem with your proxy server or your "
"network connection.");
}
/* This was introduced in gecko 1.9 */
else if (strcmp (aError, "contentEncodingError") == 0)
{
*aTitle = g_strdup (_("Could not Display Content"));
*aPrimary = g_strdup (_("Could not display content."));
*aSecondary = _("The page uses an unsupported or invalid form of compression.");
}
else
{
return NS_ERROR_ILLEGAL_VALUE;
}
return NS_OK;
}
nsresult
EphyAboutModule::CreateErrorPage(nsIURI *aErrorURI,
nsIChannel **_retval)
{
*_retval = nsnull;
/* First parse the arguments */
nsresult rv;
nsCAutoString spec;
rv = aErrorURI->GetSpec (spec);
NS_ENSURE_TRUE (NS_SUCCEEDED (rv), rv);
nsCAutoString error, rawurl, url, charset, dummy;
rv = ParseURL (spec.get (), error, rawurl, url, charset, dummy);
if (NS_FAILED (rv)) return rv;
if (error.IsEmpty () || rawurl.IsEmpty () || url.IsEmpty()) return NS_ERROR_FAILURE;
nsCOMPtr<nsIURI> uri;
rv = NS_NewURI (getter_AddRefs (uri), url, charset.get());
/* FIXME can uri be NULL if the original url was invalid? */
NS_ENSURE_SUCCESS (rv, rv);
char *stock_id = nsnull, *title = nsnull, *primary = nsnull,
*secondary = nsnull, *tertiary = nsnull, *linkintro = nsnull;
rv = GetErrorMessage (uri, error.get(), &stock_id, &title, &primary,
&secondary, &tertiary, &linkintro);
/* we don't know about this error code.
* FIXME: We'd like to forward to mozilla's about:neterror handler,
* but I don't know how to. So just redirect to the same page that
* mozilla's handler redirects to.
*/
if (rv == NS_ERROR_ILLEGAL_VALUE)
{
nsCAutoString newurl(spec);
/* remove "about:neterror" part and insert mozilla's error page url */
newurl.Cut(0, strlen ("about:neterror"));
newurl.Insert("chrome://global/content/netError.xhtml", 0);
return Redirect (newurl, _retval);
}
NS_ENSURE_SUCCESS (rv, rv);
NS_ENSURE_TRUE (primary && secondary, NS_ERROR_FAILURE);
nsCOMPtr<nsIChannel> channel;
rv = WritePage (aErrorURI, uri, aErrorURI, rawurl, title, stock_id, primary, secondary, tertiary, linkintro, getter_AddRefs (channel));
NS_ENSURE_SUCCESS (rv, rv);
g_free (title);
g_free (primary);
channel.swap (*_retval);
return NS_OK;
}
nsresult
EphyAboutModule::CreateRecoverPage(nsIURI *aRecoverURI,
nsIChannel **_retval)
{
*_retval = nsnull;
/* First parse the arguments */
nsresult rv;
nsCAutoString spec;
rv = aRecoverURI->GetSpec (spec);
NS_ENSURE_TRUE (NS_SUCCEEDED (rv), rv);
nsCAutoString error, rawurl, url, charset, title;
rv = ParseURL (spec.get (), error, rawurl, url, charset, title);
if (NS_FAILED (rv)) return rv;
if (rawurl.IsEmpty () || url.IsEmpty()) return NS_ERROR_FAILURE;
nsCOMPtr<nsIURI> uri;
rv = NS_NewURI(getter_AddRefs (uri), url, charset.get());
NS_ENSURE_SUCCESS (rv, rv);
char *secondary = g_strdup_printf
(_("The page “%s” in this tab was not fully loaded yet when "
"the web browser crashed; it could have caused the crash."),
url.get());
nsCOMPtr<nsIChannel> channel;
rv = WritePage (aRecoverURI, uri, uri, rawurl, title.get(),
GTK_STOCK_DIALOG_INFO, title.get() /* as primary */,
secondary, nsnull, nsnull, getter_AddRefs (channel));
NS_ENSURE_SUCCESS (rv, rv);
nsRefPtr<EphyRedirectChannel> redirectChannel (new EphyRedirectChannel (channel));
if (!redirectChannel) return NS_ERROR_OUT_OF_MEMORY;
g_free (secondary);
NS_ADDREF(*_retval = redirectChannel);
return NS_OK;
}
nsresult
EphyAboutModule::WritePage(nsIURI *aOriginalURI,
nsIURI *aURI,
nsIURI *aChannelURI,
const nsACString &aRawURL,
const char *aTitle,
const char *aStockIcon,
const char *aPrimary,
const char *aSecondary,
const char *aTertiary,
const char *aLinkIntro,
nsIChannel **_retval)
{
*_retval = nsnull;
nsresult rv;
nsCOMPtr<nsIStorageStream> storageStream;
rv = NS_NewStorageStream (16384, (PRUint32) -1, getter_AddRefs (storageStream));
NS_ENSURE_SUCCESS (rv, rv);
nsCOMPtr<nsIOutputStream> stream;
rv = storageStream->GetOutputStream (0, getter_AddRefs (stream));
NS_ENSURE_SUCCESS (rv, rv);
char *language = g_strdup (pango_language_to_string (gtk_get_default_language ()));
g_strdelimit (language, "_-@", '\0');
Write (stream,
"<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"
"<!DOCTYPE html PUBLIC \"-//W3C//DTD XHTML 1.0 Strict//EN\" "
"\"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd\">\n"
"<html xmlns=\"http://www.w3.org/1999/xhtml\" lang=\"");
Write (stream, language);
Write (stream,
"\" xml:lang=\"");
Write (stream, language);
Write (stream,
"\">\n"
"<head>\n"
"<title>");
Write (stream, aTitle);
/* no favicon for now, it would pollute the favicon cache */
/* "<link rel=\"icon\" type=\"image/png\" href=\"moz-icon://stock/gtk-dialog-error?size=16\" />\n" */
Write (stream,
"</title>\n"
"<style type=\"text/css\">\n"
"div#body {\n"
"top: 12px;\n"
"right: 12px;\n"
"bottom: 12px;\n"
"left: 12px;\n"
"overflow: auto;\n"
"background: -moz-dialog url('moz-icon://stock/");
Write (stream, aStockIcon);
Write (stream,
"?size=dialog') no-repeat 12px 12px;\n"
"color: -moz-dialogtext;\n"
"font: message-box;\n"
"border: 1px solid -moz-dialogtext;\n"
"padding: 12px 12px 12px 72px;\n"
"}\n"
"h1 {\n"
"margin: 0;\n"
"font-size: 1.2em;\n"
"}\n"
"</style>\n"
"</head>\n"
"<body dir=\"");
Write (stream,
gtk_widget_get_default_direction () == GTK_TEXT_DIR_RTL ? "rtl" : "ltr");
Write (stream,
"\">\n"
"<div id=\"body\">"
"<h1>");
Write (stream, aPrimary);
Write (stream,
"</h1>\n");
if (aSecondary)
{
Write (stream, "<p>");
Write (stream, aSecondary);
if (aTertiary)
{
Write (stream, " ");
Write (stream, aTertiary);
}
Write (stream, "</p>\n");
}
PRBool isHttp = PR_FALSE, isHttps = PR_FALSE;
aURI->SchemeIs ("http", &isHttp);
aURI->SchemeIs ("https", &isHttps);
if (aLinkIntro && (isHttp || isHttps))
{
nsCString raw(aRawURL);
Write (stream, "<p>");
Write (stream, aLinkIntro);
Write (stream, "<ul>\n");
Write (stream, "<li><a href=\"http://www.google.com/search?q=cache:");
Write (stream, raw.get());
Write (stream, "\">");
/* Translators: The text before the "|" is context to help you decide on
* the correct translation. You MUST OMIT it in the translated string. */
Write (stream, Q_("You may find an old version:|in the Google Cache"));
Write (stream, "</a></li>\n");
Write (stream, "<li><a href=\"http://web.archive.org/web/*/");
Write (stream, raw.get());
Write (stream, "\">");
/* Translators: The text before the "|" is context to help you decide on
* the correct translation. You MUST OMIT it in the translated string. */
Write (stream, Q_("You may find an old version:|in the Internet Archive"));
Write (stream, "</a></li>\n"
"</ul>\n"
"</p>");
}
Write (stream,
"</div>\n"
"</body>\n"
"</html>\n");
g_free (language);
/* finish the rendering */
nsCOMPtr<nsIInputStream> inputStream;
rv = storageStream->NewInputStream (0, getter_AddRefs (inputStream));
NS_ENSURE_SUCCESS (rv, rv);
nsCOMPtr<nsIChannel> channel;
rv = NS_NewInputStreamChannel (getter_AddRefs (channel),
aChannelURI,
inputStream,
NS_LITERAL_CSTRING ("application/xhtml+xml"),
NS_LITERAL_CSTRING ("utf-8"));
NS_ENSURE_SUCCESS (rv, rv);
rv = channel->SetOriginalURI (aOriginalURI);
NS_ENSURE_SUCCESS (rv, rv);
nsCOMPtr<nsIScriptSecurityManager> securityManager
(do_GetService(NS_SCRIPTSECURITYMANAGER_CONTRACTID, &rv));
NS_ENSURE_SUCCESS (rv, rv);
nsCOMPtr<nsIPrincipal> principal;
rv = securityManager->GetCodebasePrincipal (aOriginalURI, getter_AddRefs (principal));
NS_ENSURE_SUCCESS (rv, rv);
rv = channel->SetOwner(principal);
NS_ENSURE_SUCCESS (rv, rv);
channel.swap (*_retval);
return NS_OK;
}
nsresult
EphyAboutModule::Write(nsIOutputStream *aStream,
const char *aText)
{
PRUint32 bytesWritten;
return aStream->Write (aText, strlen (aText), &bytesWritten);
}
