embed/mozilla/EphyHeaderSniffer.cpp

   1 /* ***** BEGIN LICENSE BLOCK *****
   2  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   3  *
   4  * The contents of this file are subject to the Mozilla Public License Version
   5  * 1.1 (the "License"); you may not use this file except in compliance with
   6  * the License. You may obtain a copy of the License at
   7  * http://www.mozilla.org/MPL/
   8  *
   9  * Software distributed under the License is distributed on an "AS IS" basis,
  10  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  11  * for the specific language governing rights and limitations under the
  12  * License.
  13  *
  14  * The Original Code is Chimera code.
  15  *
  16  * The Initial Developer of the Original Code is
  17  * Netscape Communications Corporation.
  18  * Portions created by the Initial Developer are Copyright © 2002
  19  * the Initial Developer. All Rights Reserved.
  20  *
  21  * Contributor(s):
  22  *   David Hyatt  <hyatt@netscape.com>
  23  *   Simon Fraser <sfraser@netscape.com>
  24  *
  25  * Alternatively, the contents of this file may be used under the terms of
  26  * either the GNU General Public License Version 2 or later (the "GPL"), or
  27  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  28  * in which case the provisions of the GPL or the LGPL are applicable instead
  29  * of those above. If you wish to allow use of your version of this file only
  30  * under the terms of either the GPL or the LGPL, and not to allow others to
  31  * use your version of this file under the terms of the MPL, indicate your
  32  * decision by deleting the provisions above and replace them with the notice
  33  * and other provisions required by the GPL or the LGPL. If you do not delete
  34  * the provisions above, a recipient may use your version of this file under
  35  * the terms of any one of the MPL, the GPL or the LGPL.
  36  *
  37  * ***** END LICENSE BLOCK *****
  38  *
  39  * $Id: EphyHeaderSniffer.cpp 6588 2006-09-13 11:34:25Z chpe $
  40  */
  41
  42 #include "mozilla-config.h"
  43 #include "config.h"
  44
  45 #include <glib/gi18n.h>
  46 #include <libgnomevfs/gnome-vfs-utils.h>
  47
  48 #include <nsStringAPI.h>
  49
  50 #include <nsComponentManagerUtils.h>
  51 #include <nsIChannel.h>
  52 #include <nsIDOMDocument.h>
  53 #include <nsIDOMHTMLDocument.h>
  54 #include <nsIDownload.h>
  55 #include <nsIHttpChannel.h>
  56 #include <nsIInputStream.h>
  57 #include <nsILocalFile.h>
  58 #include <nsIMIMEHeaderParam.h>
  59 #include <nsIMIMEInfo.h>
  60 #include <nsIMIMEService.h>
  61 #include <nsIPrefService.h>
  62 #include <nsIPromptService.h>
  63 #include <nsIURI.h>
  64 #include <nsIURL.h>
  65 #include <nsIWebBrowserPersist.h>
  66 #include <nsIWindowWatcher.h>
  67 #include <nsServiceManagerUtils.h>
  68 #include <nsXPCOMCID.h>
  69
  70 #include "eel-gconf-extensions.h"
  71 #include "ephy-debug.h"
  72 #include "ephy-file-chooser.h"
  73 #include "ephy-gui.h"
  74 #include "ephy-prefs.h"
  75
  76 #include "EphyBadCertRejector.h"
  77 #include "MozDownload.h"
  78
  79 #include "EphyHeaderSniffer.h"
  80
  81 EphyHeaderSniffer::EphyHeaderSniffer (nsIWebBrowserPersist* aPersist, MozillaEmbedPersist *aEmbedPersist,
  82                 nsIFile* aFile, nsIURI* aURL, nsIDOMDocument* aDocument, nsIInputStream* aPostData,
  83                 EphyEmbedSingle *single)
  84 : mPersist(aPersist)
  85 , mEmbedPersist(aEmbedPersist)
  86 , mTmpFile(aFile)
  87 , mURL(aURL)
  88 , mOriginalURI(nsnull)
  89 , mDocument(aDocument)
  90 , mPostData(aPostData)
  91 {
  92         LOG ("EphyHeaderSniffer ctor (%p)", this);
  93
  94         nsCOMPtr<nsIWindowWatcher> watcher
  95                 (do_GetService("@mozilla.org/embedcomp/window-watcher;1"));
  96         if (!watcher) return;
  97
  98         watcher->GetNewAuthPrompter (nsnull, getter_AddRefs (mAuthPrompt));
  99
 100         mSingle = single;
 101         g_object_add_weak_pointer (G_OBJECT (mSingle),
 102                                    (gpointer *)&mSingle);
 103 }
 104
 105 EphyHeaderSniffer::~EphyHeaderSniffer()
 106 {
 107         LOG ("EphyHeaderSniffer dtor (%p)", this);
 108
 109         if (mSingle)
 110         {
 111                 g_object_remove_weak_pointer (G_OBJECT (mSingle),
 112                                               (gpointer *)&mSingle);
 113         }
 114 }
 115
 116 NS_IMPL_ISUPPORTS3 (EphyHeaderSniffer,
 117                     nsIWebProgressListener,
 118                     nsIInterfaceRequestor,
 119                     nsIAuthPrompt)
 120
 121 NS_IMETHODIMP
 122 EphyHeaderSniffer::HandleContent ()
 123 {
 124         gboolean handled = FALSE;
 125         nsCString uriSpec;
 126
 127         if (mPostData || !mSingle) return NS_ERROR_FAILURE;
 128
 129         mURL->GetSpec (uriSpec);
 130
 131         g_signal_emit_by_name (mSingle, "handle_content", mContentType.get(),
 132                                uriSpec.get(), &handled);
 133
 134         return handled ? NS_OK : NS_ERROR_FAILURE;
 135 }
 136
 137 NS_IMETHODIMP
 138 EphyHeaderSniffer::OnStateChange (nsIWebProgress *aWebProgress, nsIRequest *aRequest, PRUint32 aStateFlags,
 139                                   PRUint32 aStatus)
 140 {
 141         if (aStateFlags & nsIWebProgressListener::STATE_START)
 142         {
 143                 /* be sure to keep it alive while we save since it owns
 144                    us as a listener and keep ourselves alive */
 145                 nsCOMPtr<nsIWebBrowserPersist> kungFuDeathGrip(mPersist);
 146                 nsCOMPtr<nsIWebProgressListener> kungFuSuicideGrip(this);
 147
 148                 nsresult rv;
 149                 nsCOMPtr<nsIChannel> channel = do_QueryInterface(aRequest, &rv);
 150                 if (!channel) return rv;
 151                 channel->GetContentType(mContentType);
 152
 153                 nsCOMPtr<nsIURI> origURI;
 154                 channel->GetOriginalURI(getter_AddRefs(origURI));
 155
 156                 nsCOMPtr<nsIHttpChannel> httpChannel(do_QueryInterface(channel));
 157                 if (httpChannel)
 158                 {
 159                         httpChannel->GetResponseHeader(nsCString("content-disposition"),
 160                                                        mContentDisposition);
 161                 }
 162
 163                 mPersist->CancelSave();
 164
 165                 PRBool exists;
 166                 mTmpFile->Exists(&exists);
 167                 if (exists)
 168                 {
 169                         mTmpFile->Remove(PR_FALSE);
 170                 }
 171
 172                 rv = HandleContent ();
 173                 if (NS_SUCCEEDED (rv)) return NS_OK;
 174
 175                 rv = PerformSave(origURI);
 176                 if (NS_FAILED(rv))
 177                 {
 178                         /* FIXME put up some UI */
 179
 180                 }
 181         }
 182
 183         return NS_OK;
 184 }
 185
 186 NS_IMETHODIMP
 187 EphyHeaderSniffer::OnProgressChange (nsIWebProgress *aWebProgress,
 188                                      nsIRequest *aRequest,
 189                                      PRInt32 aCurSelfProgress,
 190                                      PRInt32 aMaxSelfProgress,
 191                                      PRInt32 aCurTotalProgress,
 192                                      PRInt32 aMaxTotalProgress)
 193 {
 194         return NS_OK;
 195 }
 196
 197 NS_IMETHODIMP
 198 EphyHeaderSniffer::OnLocationChange (nsIWebProgress *aWebProgress,
 199                                      nsIRequest *aRequest,
 200                                      nsIURI *location)
 201 {
 202         return NS_OK;
 203 }
 204
 205 NS_IMETHODIMP
 206 EphyHeaderSniffer::OnStatusChange (nsIWebProgress *aWebProgress,
 207                                    nsIRequest *aRequest,
 208                                    nsresult aStatus,
 209                                    const PRUnichar *aMessage)
 210 {
 211         return NS_OK;
 212 }
 213
 214 NS_IMETHODIMP
 215 EphyHeaderSniffer::OnSecurityChange (nsIWebProgress *aWebProgress, nsIRequest *aRequest, PRUint32 state)
 216 {
 217         return NS_OK;
 218 }
 219
 220 /* void getInterface (in nsIIDRef uuid, [iid_is (uuid), retval] out nsQIResult result); */
 221 NS_IMETHODIMP
 222 EphyHeaderSniffer::GetInterface(const nsIID & uuid, void * *result)
 223 {
 224         if (uuid.Equals (NS_GET_IID (nsIBadCertListener)) &&
 225             mEmbedPersist)
 226         {
 227                 EphyEmbedPersistFlags flags;
 228
 229                 g_object_get (mEmbedPersist, "flags", &flags, (char *) NULL);
 230
 231                 if (flags & EPHY_EMBED_PERSIST_NO_CERTDIALOGS)
 232                 {
 233                         EphyBadCertRejector *badCertRejector = new EphyBadCertRejector ();
 234                         if (!badCertRejector) return NS_ERROR_OUT_OF_MEMORY;
 235
 236                         *result = NS_STATIC_CAST(nsIBadCertListener*, badCertRejector);
 237                         NS_ADDREF (badCertRejector);
 238
 239                         return NS_OK;
 240                 }
 241         }
 242
 243         return NS_ERROR_NO_INTERFACE;
 244 }
 245
 246 static void
 247 filechooser_response_cb (GtkWidget *dialog,
 248                          gint response,
 249                          EphyHeaderSniffer* sniffer)
 250 {
 251         if (response == GTK_RESPONSE_ACCEPT)
 252         {
 253                 char *filename;
 254
 255                 filename = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog));
 256
 257                 if (ephy_gui_check_location_writable (dialog, filename) == FALSE)
 258                 {
 259                         g_free (filename);
 260                         return;
 261                 }
 262
 263                 nsCOMPtr<nsILocalFile> destFile = do_CreateInstance (NS_LOCAL_FILE_CONTRACTID);
 264                 if (destFile)
 265                 {
 266                         destFile->InitWithNativePath (nsCString (filename));
 267
 268                         sniffer->InitiateDownload (destFile);
 269                 }
 270
 271                 g_free (filename);
 272         }
 273
 274         // FIXME how to inform user of failed save ?
 275
 276         gtk_widget_destroy (GTK_WIDGET (dialog));
 277 }
 278
 279 nsresult EphyHeaderSniffer::PerformSave (nsIURI* inOriginalURI)
 280 {
 281         nsresult rv;
 282         EphyEmbedPersistFlags flags;
 283         PRBool askDownloadDest;
 284
 285         mOriginalURI = inOriginalURI;
 286
 287         flags = ephy_embed_persist_get_flags (EPHY_EMBED_PERSIST (mEmbedPersist));
 288         askDownloadDest = flags & EPHY_EMBED_PERSIST_ASK_DESTINATION;
 289
 290         nsString defaultFileName;
 291
 292         if (!defaultFileName.Length() && mContentDisposition.Length())
 293         {
 294                 /* 1 Use the HTTP header suggestion. */
 295                 nsCOMPtr<nsIMIMEHeaderParam> mimehdrpar =
 296                         do_GetService("@mozilla.org/network/mime-hdrparam;1");
 297
 298                 if (mimehdrpar)
 299                 {
 300                         nsCString fallbackCharset;
 301                         if (mURL)
 302                         {
 303                                 mURL->GetOriginCharset(fallbackCharset);
 304                         }
 305
 306                         nsString fileName;
 307
 308                         rv = mimehdrpar->GetParameter (mContentDisposition, "filename",
 309                                                        fallbackCharset, PR_TRUE, nsnull,
 310                                                        fileName);
 311                         if (NS_FAILED(rv) || !fileName.Length())
 312                         {
 313                                 rv = mimehdrpar->GetParameter (mContentDisposition, "name",
 314                                                                fallbackCharset, PR_TRUE, nsnull,
 315                                                                fileName);
 316                         }
 317
 318                         if (NS_SUCCEEDED(rv) && fileName.Length())
 319                         {
 320                                 defaultFileName = fileName;
 321                         }
 322                 }
 323         }
 324
 325         if (!defaultFileName.Length())
 326         {
 327                 /* 2 For file URLs, use the file name. */
 328
 329                 nsCOMPtr<nsIURL> url(do_QueryInterface(mURL));
 330                 if (url)
 331                 {
 332                         nsCString fileNameCString;
 333                         url->GetFileName(fileNameCString);
 334                         NS_CStringToUTF16 (fileNameCString, NS_CSTRING_ENCODING_UTF8,
 335                                            defaultFileName);
 336                 }
 337         }
 338
 339         if (!defaultFileName.Length() && mDocument)
 340         {
 341                 /* 3 Use the title of the document. */
 342
 343                 nsCOMPtr<nsIDOMHTMLDocument> htmlDoc(do_QueryInterface(mDocument));
 344                 if (htmlDoc)
 345                 {
 346                         htmlDoc->GetTitle(defaultFileName);
 347                 }
 348         }
 349
 350         if (!defaultFileName.Length() && mURL)
 351         {
 352                 /* 4 Use the host. */
 353                 nsCString hostName;
 354                 mURL->GetHost(hostName);
 355                 NS_CStringToUTF16 (hostName, NS_CSTRING_ENCODING_UTF8,
 356                                    defaultFileName);
 357         }
 358
 359         /* 5 One last case to handle about:blank and other untitled pages. */
 360         if (!defaultFileName.Length())
 361         {
 362                 NS_CStringToUTF16 (nsCString(_("Untitled")),
 363                                    NS_CSTRING_ENCODING_UTF8, defaultFileName);
 364         }
 365
 366         /* Validate the file name to ensure legality. */
 367         nsCString cDefaultFileName;
 368         NS_UTF16ToCString (defaultFileName, NS_CSTRING_ENCODING_UTF8,
 369                            cDefaultFileName);
 370         char *default_name = g_strdup (cDefaultFileName.get());
 371         default_name = g_strdelimit (default_name, "/\\:", ' ');
 372
 373         const char *key;
 374         key = ephy_embed_persist_get_persist_key (EPHY_EMBED_PERSIST (mEmbedPersist));
 375
 376         /* FIXME: do better here by using nsITextToSubURI service, like in
 377          * http://lxr.mozilla.org/seamonkey/source/xpfe/communicator/resources/content/contentAreaUtils.js#763
 378          */
 379         char *filename;
 380         filename = gnome_vfs_unescape_string (default_name, NULL);
 381
 382         if (!g_utf8_validate (filename, -1, NULL))
 383         {
 384                 g_free (filename);
 385                 filename = g_strdup (default_name);
 386         }
 387
 388         g_free (default_name);
 389
 390         if (askDownloadDest)
 391         {
 392                 EphyFileChooser *dialog;
 393                 GtkWindow *window;
 394                 const char *title;
 395                 guint32 user_time;
 396
 397                 title = ephy_embed_persist_get_fc_title (EPHY_EMBED_PERSIST (mEmbedPersist));
 398                 window = ephy_embed_persist_get_fc_parent (EPHY_EMBED_PERSIST (mEmbedPersist));
 399
 400                 user_time = ephy_embed_persist_get_user_time (EPHY_EMBED_PERSIST (mEmbedPersist));
 401                 if (user_time == 0)
 402                 {
 403                         g_warning ("EphyHeaderSniffer::PerformSave without valid user time!\n");
 404                 }
 405
 406                 dialog = ephy_file_chooser_new (title ? title: _("Save"),
 407                                                 GTK_WIDGET (window),
 408                                                 GTK_FILE_CHOOSER_ACTION_SAVE,
 409                                                 key ? key : CONF_STATE_SAVE_DIR,
 410                                                 EPHY_FILE_FILTER_ALL_SUPPORTED);
 411                 gtk_file_chooser_set_do_overwrite_confirmation (GTK_FILE_CHOOSER (dialog), TRUE);
 412
 413                 gtk_file_chooser_set_current_name (GTK_FILE_CHOOSER (dialog),
 414                                                    filename);
 415
 416                 g_signal_connect (dialog, "response",
 417                                   G_CALLBACK (filechooser_response_cb), this);
 418
 419                 ephy_gui_window_update_user_time (GTK_WIDGET (dialog), user_time);
 420                 gtk_widget_show (GTK_WIDGET (dialog));
 421
 422                 g_free (filename);
 423                 return NS_OK;
 424         }
 425         /* FIXME: how to inform user of failed save ? */
 426
 427         nsCOMPtr<nsILocalFile> destFile;
 428         BuildDownloadPath (filename, getter_AddRefs (destFile));
 429         g_free (filename);
 430         NS_ENSURE_TRUE (destFile, NS_ERROR_FAILURE);
 431
 432         return InitiateDownload (destFile);
 433 }
 434
 435 nsresult EphyHeaderSniffer::InitiateDownload (nsILocalFile *aDestFile)
 436 {
 437         LOG ("Initiating download");
 438
 439         return InitiateMozillaDownload (mDocument, mURL, aDestFile,
 440                                         mContentType.get(), mOriginalURI, mEmbedPersist,
 441                                         mPostData, nsnull, -1);
 442 }