1 files changed, 236 insertions, 0 deletions
diff --git a/mailnews/mime/src/mimeeobj.cpp b/mailnews/mime/src/mimeeobj.cpp
new file mode 100644
index 000000000..da59a9d62
--- /dev/null
+++ b/mailnews/mime/src/mimeeobj.cpp
@@ -0,0 +1,236 @@
+/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsCOMPtr.h"
+#include "mimeeobj.h"
+#include "prmem.h"
+#include "plstr.h"
+#include "prlog.h"
+#include "nsMimeStringResources.h"
+#include "mimemoz2.h"
+#include "mimemapl.h"
+#include "nsMimeTypes.h"
+
+
+#define MIME_SUPERCLASS mimeLeafClass
+MimeDefClass(MimeExternalObject, MimeExternalObjectClass,
+       mimeExternalObjectClass, &MIME_SUPERCLASS);
+
+static int MimeExternalObject_initialize (MimeObject *);
+static void MimeExternalObject_finalize (MimeObject *);
+static int MimeExternalObject_parse_begin (MimeObject *);
+static int MimeExternalObject_parse_buffer (const char *, int32_t, MimeObject *);
+static int MimeExternalObject_parse_line (const char *, int32_t, MimeObject *);
+static int MimeExternalObject_parse_decoded_buffer (const char*, int32_t, MimeObject*);
+static bool MimeExternalObject_displayable_inline_p (MimeObjectClass *clazz,
+                            MimeHeaders *hdrs);
+
+static int
+MimeExternalObjectClassInitialize(MimeExternalObjectClass *clazz)
+{
+  MimeObjectClass *oclass = (MimeObjectClass *) clazz;
+  MimeLeafClass   *lclass = (MimeLeafClass *) clazz;
+
+  NS_ASSERTION(!oclass->class_initialized, "1.1 <rhp@netscape.com> 19 Mar 1999 12:00");
+  oclass->initialize   = MimeExternalObject_initialize;
+  oclass->finalize     = MimeExternalObject_finalize;
+  oclass->parse_begin  = MimeExternalObject_parse_begin;
+  oclass->parse_buffer = MimeExternalObject_parse_buffer;
+  oclass->parse_line   = MimeExternalObject_parse_line;
+  oclass->displayable_inline_p = MimeExternalObject_displayable_inline_p;
+  lclass->parse_decoded_buffer = MimeExternalObject_parse_decoded_buffer;
+  return 0;
+}
+
+
+static int
+MimeExternalObject_initialize (MimeObject *object)
+{
+  return ((MimeObjectClass*)&MIME_SUPERCLASS)->initialize(object);
+}
+
+static void
+MimeExternalObject_finalize (MimeObject *object)
+{
+  ((MimeObjectClass*)&MIME_SUPERCLASS)->finalize(object);
+}
+
+
+static int
+MimeExternalObject_parse_begin (MimeObject *obj)
+{
+  int status;
+
+  status = ((MimeObjectClass*)&MIME_SUPERCLASS)->parse_begin(obj);
+  if (status < 0) return status;
+
+  // If we're writing this object, and we're doing it in raw form, then
+  // now is the time to inform the backend what the type of this data is.
+  //
+  if (obj->output_p &&
+    obj->options &&
+    !obj->options->write_html_p &&
+    !obj->options->state->first_data_written_p)
+  {
+    status = MimeObject_output_init(obj, 0);
+    if (status < 0) return status;
+    NS_ASSERTION(obj->options->state->first_data_written_p, "1.1 <rhp@netscape.com> 19 Mar 1999 12:00");
+  }
+
+  //
+  // If we're writing this object as HTML, do all the work now -- just write
+  // out a table with a link in it.  (Later calls to the `parse_buffer' method
+  // will simply discard the data of the object itself.)
+  //
+  if (obj->options &&
+      obj->output_p &&
+      obj->options->write_html_p &&
+      obj->options->output_fn)
+  {
+    MimeDisplayOptions newopt = *obj->options;  // copy it
+    char *id = 0;
+    char *id_url = 0;
+    char *id_name = 0;
+    nsCString id_imap;
+    bool all_headers_p = obj->options->headers == MimeHeadersAll;
+
+    id = mime_part_address (obj);
+    if (obj->options->missing_parts)
+      id_imap.Adopt(mime_imap_part_address (obj));
+    if (! id) return MIME_OUT_OF_MEMORY;
+
+    if (obj->options && obj->options->url)
+    {
+      const char *url = obj->options->url;
+      if (!id_imap.IsEmpty() && id)
+      {
+        // if this is an IMAP part.
+        id_url = mime_set_url_imap_part(url, id_imap.get(), id);
+      }
+      else
+      {
+        // This is just a normal MIME part as usual.
+        id_url = mime_set_url_part(url, id, true);
+      }
+      if (!id_url)
+      {
+        PR_Free(id);
+        return MIME_OUT_OF_MEMORY;
+      }
+    }
+    if (!strcmp (id, "0"))
+    {
+      PR_Free(id);
+      id = MimeGetStringByID(MIME_MSG_ATTACHMENT);
+    }
+    else
+    {
+      const char *p = "Part ";
+      uint32_t slen = strlen(p) + strlen(id) + 1;
+      char *s = (char *)PR_MALLOC(slen);
+      if (!s)
+      {
+        PR_Free(id);
+        PR_Free(id_url);
+        return MIME_OUT_OF_MEMORY;
+      }
+      // we have a valid id
+      if (id)
+        id_name = mime_find_suggested_name_of_part(id, obj);
+      PL_strncpyz(s, p, slen);
+      PL_strcatn(s, slen, id);
+      PR_Free(id);
+      id = s;
+    }
+
+    if (all_headers_p &&
+    // Don't bother showing all headers on this part if it's the only
+    // part in the message: in that case, we've already shown these
+    // headers.
+    obj->options->state &&
+    obj->options->state->root == obj->parent)
+    all_headers_p = false;
+
+    newopt.fancy_headers_p = true;
+    newopt.headers = (all_headers_p ? MimeHeadersAll : MimeHeadersSome);
+
+/******
+RICHIE SHERRY
+GOTTA STILL DO THIS FOR QUOTING!
+     status = MimeHeaders_write_attachment_box (obj->headers, &newopt,
+                                                 obj->content_type,
+                                                 obj->encoding,
+                                                 id_name? id_name : id, id_url, 0)
+*****/
+
+    // obj->options really owns the storage for this.
+    newopt.part_to_load = nullptr;
+    newopt.default_charset = nullptr;
+    PR_FREEIF(id);
+    PR_FREEIF(id_url);
+    PR_FREEIF(id_name);
+    if (status < 0) return status;
+  }
+
+  return 0;
+}
+
+static int
+MimeExternalObject_parse_buffer (const char *buffer, int32_t size, MimeObject *obj)
+{
+  NS_ASSERTION(!obj->closed_p, "1.1 <rhp@netscape.com> 19 Mar 1999 12:00");
+  if (obj->closed_p) return -1;
+
+  // Currently, we always want to stream, in order to determine the size of the
+  // MIME object.
+
+  /* The data will be base64-decoded and passed to
+     MimeExternalObject_parse_decoded_buffer. */
+  return ((MimeObjectClass*)&MIME_SUPERCLASS)->parse_buffer(buffer, size, obj);
+}
+
+
+static int
+MimeExternalObject_parse_decoded_buffer (const char *buf, int32_t size,
+                     MimeObject *obj)
+{
+  /* This is called (by MimeLeafClass->parse_buffer) with blocks of data
+   that have already been base64-decoded.  This will only be called in
+   the case where we're not emitting HTML, and want access to the raw
+   data itself.
+
+   We override the `parse_decoded_buffer' method provided by MimeLeaf
+   because, unlike most children of MimeLeaf, we do not want to line-
+   buffer the decoded data -- we want to simply pass it along to the
+   backend, without going through our `parse_line' method.
+   */
+
+  /* Don't do a roundtrip through XPConnect when we're only interested in
+   * metadata and size. This includes when we are writing HTML (otherwise, the
+   * contents of binary attachments will just get dumped into messages when
+   * reading them) and the JS emitter (which doesn't care about attachment data
+   * at all). 0 means ok, the caller just checks for negative return value.
+   */
+  if (obj->options && (obj->options->metadata_only ||
+                       obj->options->write_html_p))
+    return 0;
+  else
+    return MimeObject_write(obj, buf, size, true);
+}
+
+
+static int
+MimeExternalObject_parse_line (const char *line, int32_t length, MimeObject *obj)
+{
+  NS_ERROR("This method should never be called (externals do no line buffering).");
+  return -1;
+}
+
+static bool
+MimeExternalObject_displayable_inline_p (MimeObjectClass *clazz,
+                     MimeHeaders *hdrs)
+{
+  return false;
+}