From 9e549686b23b6dffdcbd09c9b10dc2cb795fbcdf Mon Sep 17 00:00:00 2001
From: zautrix <zautrix>
Date: Fri, 18 Mar 2005 20:17:03 +0000
Subject: Initial revision

---
(limited to 'libetpan/src/low-level/mime/mailmime_types_helper.c')

diff --git a/libetpan/src/low-level/mime/mailmime_types_helper.c b/libetpan/src/low-level/mime/mailmime_types_helper.c
new file mode 100644
index 0000000..e45330c
--- a/dev/null
+++ b/libetpan/src/low-level/mime/mailmime_types_helper.c
@@ -0,0 +1,1385 @@
+/*
+ * libEtPan! -- a mail stuff library
+ *
+ * Copyright (C) 2001, 2005 - DINH Viet Hoa
+ * 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.
+ * 3. Neither the name of the libEtPan! project nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``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 THE AUTHORS 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.
+ */
+
+/*
+ * $Id$
+ */
+
+#include "mailmime_types_helper.h"
+#include "clist.h"
+
+#include "mailmime.h"
+
+#include <string.h>
+#include <time.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <stdlib.h>
+
+#define MIME_VERSION (1 << 16)
+
+int mailmime_transfer_encoding_get(struct mailmime_fields * fields)
+{
+  clistiter * cur;
+
+  for(cur = clist_begin(fields->fld_list) ;
+      cur != NULL ; cur = clist_next(cur)) {
+    struct mailmime_field * field;
+
+    field = clist_content(cur);
+    if (field->fld_type == MAILMIME_FIELD_TRANSFER_ENCODING)
+      return field->fld_data.fld_encoding->enc_type;
+  }
+
+  return MAILMIME_MECHANISM_8BIT;
+}
+
+struct mailmime_disposition *
+mailmime_disposition_new_filename(int type, char * filename)
+{
+  return mailmime_disposition_new_with_data(type, filename,
+    NULL, NULL, NULL, (size_t) -1);
+
+}
+
+struct mailmime_fields * mailmime_fields_new_empty(void)
+{
+  clist * list;
+  struct mailmime_fields * fields;
+
+  list = clist_new();
+  if (list == NULL)
+    goto err;
+
+  fields = mailmime_fields_new(list);
+  if (fields == NULL)
+    goto free;
+
+  return fields;
+
+ free:
+  clist_free(list);
+ err:
+  return NULL;
+}
+
+int mailmime_fields_add(struct mailmime_fields * fields,
+			struct mailmime_field * field)
+{
+  int r;
+
+  r = clist_append(fields->fld_list, field);
+  if (r < 0)
+    return MAILIMF_ERROR_MEMORY;
+
+  return MAILIMF_NO_ERROR;
+}
+
+static void mailmime_field_detach(struct mailmime_field * field)
+{
+  switch (field->fld_type) {
+  case MAILMIME_FIELD_TYPE:
+    field->fld_data.fld_content = NULL;
+    break;
+  case MAILMIME_FIELD_TRANSFER_ENCODING:
+    field->fld_data.fld_encoding = NULL;
+    break;
+  case MAILMIME_FIELD_ID:
+    field->fld_data.fld_id = NULL;
+    break;
+  case MAILMIME_FIELD_DESCRIPTION:
+    field->fld_data.fld_description = NULL;
+    break;
+  case MAILMIME_FIELD_DISPOSITION:
+    field->fld_data.fld_disposition = NULL;
+    break;
+  case MAILMIME_FIELD_LANGUAGE:
+    field->fld_data.fld_language = NULL;
+    break;
+  }
+}
+
+struct mailmime_fields *
+mailmime_fields_new_with_data(struct mailmime_mechanism * encoding,
+			      char * id,
+			      char * description,
+			      struct mailmime_disposition * disposition,
+			      struct mailmime_language * language)
+{
+  struct mailmime_field * field;
+  struct mailmime_fields * fields;
+  int r;
+
+  fields = mailmime_fields_new_empty();
+  if (fields == NULL)
+    goto err;
+
+#if 0
+  if (content != NULL) {
+    field = mailmime_field_new(MAILMIME_FIELD_TYPE,
+			       content, NULL, NULL, NULL, 0, NULL, NULL);
+    if (field == NULL)
+      goto free;
+
+    r = mailmime_fields_add(fields, field);
+    if (r != MAILIMF_NO_ERROR) {
+      mailmime_field_detach(field);
+      mailmime_field_free(field);
+      goto free;
+    }
+  }
+#endif
+
+  if (encoding != NULL) {
+    field = mailmime_field_new(MAILMIME_FIELD_TRANSFER_ENCODING,
+			       NULL, encoding, NULL, NULL, 0, NULL, NULL);
+    if (field == NULL)
+      goto free;
+
+    r = mailmime_fields_add(fields, field);
+    if (r != MAILIMF_NO_ERROR) {
+      mailmime_field_detach(field);
+      mailmime_field_free(field);
+      goto free;
+    }
+  }
+
+  if (id != NULL) {
+    field = mailmime_field_new(MAILMIME_FIELD_ID,
+			       NULL, NULL, id, NULL, 0, NULL, NULL);
+    if (field == NULL)
+      goto free;
+
+    r = mailmime_fields_add(fields, field);
+    if (r != MAILIMF_NO_ERROR) {
+      mailmime_field_detach(field);
+      mailmime_field_free(field);
+      goto free;
+    }
+  }
+
+  if (description != NULL) {
+    field = mailmime_field_new(MAILMIME_FIELD_DESCRIPTION,
+			       NULL, NULL, NULL, description, 0, NULL, NULL);
+    if (field == NULL)
+      goto free;
+
+    r = mailmime_fields_add(fields, field);
+    if (r != MAILIMF_NO_ERROR) {
+      mailmime_field_detach(field);
+      mailmime_field_free(field);
+      goto free;
+    }
+  }
+
+  if (disposition != NULL) {
+    field = mailmime_field_new(MAILMIME_FIELD_DISPOSITION,
+			       NULL, NULL, NULL, NULL, 0, disposition, NULL);
+    if (field == NULL)
+      goto free;
+
+    r = mailmime_fields_add(fields, field);
+    if (r != MAILIMF_NO_ERROR) {
+      mailmime_field_detach(field);
+      mailmime_field_free(field);
+      goto free;
+    }
+  }
+
+  if (language != NULL) {
+    field = mailmime_field_new(MAILMIME_FIELD_DISPOSITION,
+			       NULL, NULL, NULL, NULL, 0, NULL, language);
+    if (field == NULL)
+      goto free;
+
+    r = mailmime_fields_add(fields, field);
+    if (r != MAILIMF_NO_ERROR) {
+      mailmime_field_detach(field);
+      mailmime_field_free(field);
+      goto free;
+    }
+  }
+
+  return fields;
+
+ free:
+  clist_foreach(fields->fld_list, (clist_func) mailmime_field_detach, NULL);
+  mailmime_fields_free(fields);
+ err:
+  return NULL;
+}
+
+struct mailmime_fields *
+mailmime_fields_new_with_version(struct mailmime_mechanism * encoding,
+				 char * id,
+				 char * description,
+				 struct mailmime_disposition * disposition,
+				 struct mailmime_language * language)
+{
+  struct mailmime_field * field;
+  struct mailmime_fields * fields;
+  int r;
+
+  fields = mailmime_fields_new_with_data(encoding, id, description,
+					 disposition, language);
+  if (fields == NULL)
+    goto err;
+
+  field = mailmime_field_new(MAILMIME_FIELD_VERSION,
+			     NULL, NULL, NULL, NULL, MIME_VERSION, NULL, NULL);
+  if (field == NULL)
+    goto free;
+
+  r = mailmime_fields_add(fields, field);
+  if (r != MAILIMF_NO_ERROR) {
+    mailmime_field_detach(field);
+    mailmime_field_free(field);
+    goto free;
+  }
+
+  return fields;
+
+ free:
+  clist_foreach(fields->fld_list, (clist_func) mailmime_field_detach, NULL);
+  mailmime_fields_free(fields);
+ err:
+  return NULL;
+}
+
+
+struct mailmime_content * mailmime_get_content_message(void)
+{
+  clist * list;
+  struct mailmime_composite_type * composite_type;
+  struct mailmime_type * mime_type;
+  struct mailmime_content * content;
+  char * subtype;
+
+  composite_type =
+    mailmime_composite_type_new(MAILMIME_COMPOSITE_TYPE_MESSAGE,
+				NULL);
+  if (composite_type == NULL)
+    goto err;
+  
+  mime_type = mailmime_type_new(MAILMIME_TYPE_COMPOSITE_TYPE,
+				NULL, composite_type);
+  if (mime_type == NULL)
+    goto free_composite;
+  composite_type = NULL;
+
+  list = clist_new();
+  if (list == NULL)
+    goto free_mime_type;
+
+  subtype = strdup("rfc822");
+  if (subtype == NULL)
+    goto free_list;
+
+  content = mailmime_content_new(mime_type, subtype, list);
+  if (content == NULL)
+    goto free_subtype;
+
+  return content;
+
+ free_subtype:
+  free(subtype);
+ free_list:
+  clist_free(list);
+ free_mime_type:
+  mailmime_type_free(mime_type);
+ free_composite:
+  if (composite_type != NULL)
+    mailmime_composite_type_free(composite_type);
+ err:
+  return NULL;
+}
+
+struct mailmime_content * mailmime_get_content_text(void)
+{
+  clist * list;
+  struct mailmime_discrete_type * discrete_type;
+  struct mailmime_type * mime_type;
+  struct mailmime_content * content;
+  char * subtype;
+
+  discrete_type = mailmime_discrete_type_new(MAILMIME_DISCRETE_TYPE_TEXT,
+					     NULL);
+  if (discrete_type == NULL)
+    goto err;
+  
+  mime_type = mailmime_type_new(MAILMIME_TYPE_DISCRETE_TYPE,
+				discrete_type, NULL);
+  if (mime_type == NULL)
+    goto free_discrete;
+  discrete_type = NULL;
+  
+  list = clist_new();
+  if (list == NULL)
+    goto free_type;
+
+  subtype = strdup("plain");
+  if (subtype == NULL)
+    goto free_list;
+  
+  content = mailmime_content_new(mime_type, subtype, list);
+  if (content == NULL)
+    goto free_subtype;
+
+  return content;
+
+ free_subtype:
+  free(subtype);
+ free_list:
+  clist_free(list);
+ free_type:
+  mailmime_type_free(mime_type);
+ free_discrete:
+  if (discrete_type != NULL)
+    mailmime_discrete_type_free(discrete_type);
+ err:
+  return NULL;
+}
+
+
+
+
+
+
+
+
+/* mailmime build */
+
+
+#if 0
+struct mailmime *
+mailmime_new_message_file(char * filename)
+{
+  struct mailmime_content * content;
+  struct mailmime * build_info;
+  struct mailmime_data * msg_content;
+  struct mailmime_fields * mime_fields;
+
+  content = mailmime_get_content_message();
+  if (content == NULL) {
+    goto err;
+  }
+
+  mime_fields = mailmime_fields_new_with_version(NULL, NULL,
+      NULL, NULL, NULL);
+  if (mime_fields == NULL)
+    goto free_content;
+
+  msg_content = mailmime_data_new(MAILMIME_DATA_FILE, MAILMIME_MECHANISM_8BIT,
+				  1, NULL, 0, filename);
+  if (msg_content == NULL)
+    goto free_fields;
+
+  build_info = mailmime_new(MAILMIME_MESSAGE,
+      NULL, 0, mime_fields, content,
+      msg_content, NULL, NULL, NULL, NULL, NULL);
+  if (build_info == NULL)
+    goto free_msg_content;
+
+  return build_info;
+
+ free_msg_content:
+  mailmime_data_free(msg_content);
+ free_fields:
+  mailmime_fields_free(mime_fields);
+ free_content:
+  mailmime_content_free(content);
+ err:
+  return NULL;
+}
+
+struct mailmime *
+mailmime_new_message_text(char * data_str, size_t length)
+{
+  struct mailmime_content * content;
+  struct mailmime * build_info;
+  struct mailmime_data * msg_content;
+  struct mailmime_fields * mime_fields;
+
+  content = mailmime_get_content_message();
+  if (content == NULL) {
+    goto err;
+  }
+
+  mime_fields = mailmime_fields_new_with_version(NULL, NULL,
+      NULL, NULL, NULL);
+  if (mime_fields == NULL)
+    goto free_fields;
+
+  msg_content = mailmime_data_new(MAILMIME_DATA_TEXT, MAILMIME_MECHANISM_8BIT,
+				  1, data_str, length, NULL);
+  if (msg_content == NULL)
+    goto free_content;
+
+  build_info = mailmime_new(MAILMIME_MESSAGE,
+      NULL, 0, mime_fields, content,
+      msg_content, NULL, NULL, NULL,
+      NULL, NULL);
+  if (build_info == NULL)
+    goto free_msg_content;
+
+  return build_info;
+
+ free_msg_content:
+  mailmime_data_free(msg_content);
+ free_fields:
+  mailmime_fields_free(mime_fields);
+ free_content:
+  mailmime_content_free(content);
+ err:
+  return NULL;
+}
+#endif
+
+struct mailmime *
+mailmime_new_message_data(struct mailmime * msg_mime)
+{
+  struct mailmime_content * content;
+  struct mailmime * build_info;
+  struct mailmime_fields * mime_fields;
+
+  content = mailmime_get_content_message();
+  if (content == NULL)
+    goto err;
+
+  mime_fields = mailmime_fields_new_with_version(NULL, NULL,
+      NULL, NULL, NULL);
+  if (mime_fields == NULL)
+    goto free_content;
+
+  build_info = mailmime_new(MAILMIME_MESSAGE,
+      NULL, 0, mime_fields, content,
+      NULL, NULL, NULL, NULL,
+      NULL, msg_mime);
+  if (build_info == NULL)
+    goto free_fields;
+
+  return build_info;
+
+ free_fields:
+  mailmime_fields_free(mime_fields);
+ free_content:
+  mailmime_content_free(content);
+ err:
+  return NULL;
+}
+
+#define MAX_MESSAGE_ID 512
+
+static char * generate_boundary()
+{
+  char id[MAX_MESSAGE_ID];
+  time_t now;
+  char name[MAX_MESSAGE_ID];
+  long value;
+
+  now = time(NULL);
+  value = random();
+
+  gethostname(name, MAX_MESSAGE_ID);
+  snprintf(id, MAX_MESSAGE_ID, "%lx_%lx_%x", now, value, getpid());
+
+  return strdup(id);
+}
+
+struct mailmime *
+mailmime_new_empty(struct mailmime_content * content,
+		   struct mailmime_fields * mime_fields)
+{
+  struct mailmime * build_info;
+  clist * list;
+  int r;
+  int mime_type;
+  
+  list = NULL;
+  
+  switch (content->ct_type->tp_type) {
+  case MAILMIME_TYPE_DISCRETE_TYPE:
+    mime_type = MAILMIME_SINGLE;
+    break;
+
+  case MAILMIME_TYPE_COMPOSITE_TYPE:
+    switch (content->ct_type->tp_data.tp_composite_type->ct_type) {
+    case MAILMIME_COMPOSITE_TYPE_MULTIPART:
+      mime_type = MAILMIME_MULTIPLE;
+      break;
+
+    case MAILMIME_COMPOSITE_TYPE_MESSAGE:
+      if (strcasecmp(content->ct_subtype, "rfc822") == 0)
+        mime_type = MAILMIME_MESSAGE;
+      else
+	mime_type = MAILMIME_SINGLE;
+      break;
+
+    default:
+      goto err;
+    }
+    break;
+
+  default:
+    goto err;
+  }
+
+  if (mime_type == MAILMIME_MULTIPLE) {
+    char * attr_name;
+    char * attr_value;
+    struct mailmime_parameter * param;
+    clist * parameters;
+    char * boundary;
+
+    list = clist_new();
+    if (list == NULL)
+      goto err;
+
+    attr_name = strdup("boundary");
+    if (attr_name == NULL)
+      goto free_list;
+
+    boundary = generate_boundary();
+    attr_value = boundary;
+    if (attr_name == NULL) {
+      free(attr_name);
+      goto free_list;
+    }
+
+    param = mailmime_parameter_new(attr_name, attr_value);
+    if (param == NULL) {
+      free(attr_value);
+      free(attr_name);
+      goto free_list;
+    }
+
+    if (content->ct_parameters == NULL) {
+      parameters = clist_new();
+      if (parameters == NULL) {
+        mailmime_parameter_free(param);
+        goto free_list;
+      }
+    }
+    else
+      parameters = content->ct_parameters;
+
+    r = clist_append(parameters, param);
+    if (r != 0) {
+      clist_free(parameters);
+      mailmime_parameter_free(param);
+      goto free_list;
+    }
+
+    if (content->ct_parameters == NULL)
+      content->ct_parameters = parameters;
+  }
+
+  build_info = mailmime_new(mime_type,
+      NULL, 0, mime_fields, content,
+      NULL, NULL, NULL, list,
+      NULL, NULL);
+  if (build_info == NULL) {
+    clist_free(list);
+    return NULL;
+  }
+
+  return build_info;
+
+ free_list:
+  clist_free(list);
+ err:
+  return NULL;
+}
+
+
+int
+mailmime_new_with_content(const char * content_type,
+			  struct mailmime_fields * mime_fields,
+			  struct mailmime ** result)
+{
+  int r;
+  size_t cur_token;
+  struct mailmime_content * content;
+  struct mailmime * build_info;
+#if 0
+  int mime_type;
+#endif
+  int res;
+
+  cur_token = 0;
+  r = mailmime_content_parse(content_type, strlen(content_type),
+			     &cur_token,
+			     &content);
+  if (r != MAILIMF_NO_ERROR) {
+    res = r;
+    goto err;
+  }
+
+#if 0
+  switch (content->type->type) {
+  case MAILMIME_TYPE_DISCRETE_TYPE:
+    mime_type = MAILMIME_SINGLE;
+    break;
+
+  case MAILMIME_TYPE_COMPOSITE_TYPE:
+    switch (content->type->composite_type->type) {
+    case MAILMIME_COMPOSITE_TYPE_MULTIPART:
+      mime_type = MAILMIME_MULTIPLE;
+      break;
+
+    case MAILMIME_COMPOSITE_TYPE_MESSAGE:
+      if (strcasecmp(content->subtype, "rfc822") == 0)
+        mime_type = MAILMIME_MESSAGE;
+      else
+	mime_type = MAILMIME_SINGLE;
+      break;
+
+    default:
+      res = MAILIMF_ERROR_INVAL;
+      goto free;
+    }
+    break;
+
+  default:
+    res = MAILIMF_ERROR_INVAL;
+    goto free;
+  }
+#endif
+
+  build_info = mailmime_new_empty(content, mime_fields);
+  if (build_info == NULL) {
+    res = MAILIMF_ERROR_MEMORY;
+    goto free;
+  }
+
+  * result = build_info;
+
+  return MAILIMF_NO_ERROR;
+
+ free:
+  mailmime_content_free(content);
+ err:
+  return res;
+}
+
+int mailmime_set_preamble_file(struct mailmime * build_info,
+			       char * filename)
+{
+  struct mailmime_data * data;
+
+  data = mailmime_data_new(MAILMIME_DATA_FILE, MAILMIME_MECHANISM_8BIT,
+			   0, NULL, 0, filename);
+  if (data == NULL)
+    return MAILIMF_ERROR_MEMORY;
+
+  build_info->mm_data.mm_multipart.mm_preamble = data;
+  
+  return MAILIMF_NO_ERROR;
+}
+
+int mailmime_set_epilogue_file(struct mailmime * build_info,
+			       char * filename)
+{
+  struct mailmime_data * data;
+
+  data = mailmime_data_new(MAILMIME_DATA_FILE, MAILMIME_MECHANISM_8BIT,
+			   0, NULL, 0, filename);
+  if (data == NULL)
+    return MAILIMF_ERROR_MEMORY;
+
+  build_info->mm_data.mm_multipart.mm_epilogue = data;
+  
+  return MAILIMF_NO_ERROR;
+}
+
+int mailmime_set_preamble_text(struct mailmime * build_info,
+			       char * data_str, size_t length)
+{
+  struct mailmime_data * data;
+
+  data = mailmime_data_new(MAILMIME_DATA_TEXT, MAILMIME_MECHANISM_8BIT,
+			   0, data_str, length, NULL);
+  if (data == NULL)
+    return MAILIMF_ERROR_MEMORY;
+
+  build_info->mm_data.mm_multipart.mm_preamble = data;
+  
+  return MAILIMF_NO_ERROR;
+}
+
+int mailmime_set_epilogue_text(struct mailmime * build_info,
+			       char * data_str, size_t length)
+{
+  struct mailmime_data * data;
+
+  data = mailmime_data_new(MAILMIME_DATA_TEXT, MAILMIME_MECHANISM_8BIT,
+			   0, data_str, length, NULL);
+  if (data == NULL)
+    return MAILIMF_ERROR_MEMORY;
+
+  build_info->mm_data.mm_multipart.mm_epilogue = data;
+  
+  return MAILIMF_NO_ERROR;
+}
+
+
+int mailmime_set_body_file(struct mailmime * build_info,
+			   char * filename)
+{
+  int encoding;
+  struct mailmime_data * data;
+
+  encoding = mailmime_transfer_encoding_get(build_info->mm_mime_fields);
+
+  data = mailmime_data_new(MAILMIME_DATA_FILE, encoding,
+			   0, NULL, 0, filename);
+  if (data == NULL)
+    return MAILIMF_ERROR_MEMORY;
+
+  build_info->mm_data.mm_single = data;
+  
+  return MAILIMF_NO_ERROR;
+}
+
+int mailmime_set_body_text(struct mailmime * build_info,
+			   char * data_str, size_t length)
+{
+  int encoding;
+  struct mailmime_data * data;
+
+  encoding = mailmime_transfer_encoding_get(build_info->mm_mime_fields);
+
+  data = mailmime_data_new(MAILMIME_DATA_TEXT, encoding,
+			   0, data_str, length, NULL);
+  if (data == NULL)
+    return MAILIMF_ERROR_MEMORY;
+
+  build_info->mm_data.mm_single = data;
+  
+  return MAILIMF_NO_ERROR;
+}
+
+
+/* add a part as subpart of a mime part */
+
+int mailmime_add_part(struct mailmime * build_info,
+		      struct mailmime * part)
+{
+  int r;
+
+  if (build_info->mm_type == MAILMIME_MESSAGE) {
+    build_info->mm_data.mm_message.mm_msg_mime = part;
+    part->mm_parent_type = MAILMIME_MESSAGE;
+    part->mm_parent = build_info;
+  }
+  else if (build_info->mm_type == MAILMIME_MULTIPLE) {
+    r = clist_append(build_info->mm_data.mm_multipart.mm_mp_list, part);
+    if (r != 0)
+      return MAILIMF_ERROR_MEMORY;
+    
+    part->mm_parent_type = MAILMIME_MULTIPLE;
+    part->mm_parent = build_info;
+    part->mm_multipart_pos =
+      clist_end(build_info->mm_data.mm_multipart.mm_mp_list);
+  }
+  else {
+    return MAILIMF_ERROR_INVAL;
+  }
+  return MAILIMF_NO_ERROR;
+}
+
+/* detach part from parent */
+
+void mailmime_remove_part(struct mailmime * mime)
+{
+  struct mailmime * parent;
+
+  parent = mime->mm_parent;
+  if (parent == NULL)
+    return;
+
+  switch (mime->mm_parent_type) {
+  case MAILMIME_MESSAGE:
+    mime->mm_parent = NULL;
+    parent->mm_data.mm_message.mm_msg_mime = NULL;
+    break;
+
+  case MAILMIME_MULTIPLE:
+    mime->mm_parent = NULL;
+    clist_delete(parent->mm_data.mm_multipart.mm_mp_list,
+        mime->mm_multipart_pos);
+    break;
+  }
+}
+
+
+/*
+  attach a part to a mime part and create multipart/mixed
+  when needed, when the parent part has already some part
+  attached to it.
+*/
+
+int mailmime_smart_add_part(struct mailmime * mime,
+    struct mailmime * mime_sub)
+{
+  struct mailmime * saved_sub;
+  struct mailmime * mp;
+  int res;
+  int r;
+
+  switch (mime->mm_type) {
+  case MAILMIME_SINGLE:
+    res = MAILIMF_ERROR_INVAL;
+    goto err;
+
+  case MAILMIME_MULTIPLE:
+    r = mailmime_add_part(mime, mime_sub);
+    if (r != MAILIMF_NO_ERROR) {
+      res = MAILIMF_ERROR_MEMORY;
+      goto err;
+    }
+
+    return MAILIMF_NO_ERROR;
+  }
+
+  /* MAILMIME_MESSAGE */
+
+  if (mime->mm_data.mm_message.mm_msg_mime == NULL) {
+    /* there is no subpart, we can simply attach it */
+    
+    r = mailmime_add_part(mime, mime_sub);
+    if (r != MAILIMF_NO_ERROR) {
+      res = MAILIMF_ERROR_MEMORY;
+      goto err;
+    }
+
+    return MAILIMF_NO_ERROR;
+  }
+
+  if (mime->mm_data.mm_message.mm_msg_mime->mm_type == MAILMIME_MULTIPLE) {
+    /* in case the subpart is multipart, simply attach it to the subpart */
+    
+    return mailmime_add_part(mime->mm_data.mm_message.mm_msg_mime, mime_sub);
+  }
+
+  /* we save the current subpart, ... */
+
+  saved_sub = mime->mm_data.mm_message.mm_msg_mime;
+
+  /* create a multipart */
+  
+  mp = mailmime_multiple_new("multipart/mixed");
+  if (mp == NULL) {
+    res = MAILIMF_ERROR_MEMORY;
+    goto err;
+  }
+
+  /* detach the saved subpart from the parent */
+
+  mailmime_remove_part(saved_sub);
+  
+  /* the created multipart is the new child of the parent */
+
+  r = mailmime_add_part(mime, mp);
+  if (r != MAILIMF_NO_ERROR) {
+    res = MAILIMF_ERROR_MEMORY;
+    goto free_mp;
+  }
+
+  /* then, attach the saved subpart and ... */
+  
+  r = mailmime_add_part(mp, saved_sub);
+  if (r != MAILIMF_NO_ERROR) {
+    res = MAILIMF_ERROR_MEMORY;
+    goto free_saved_sub;
+  }
+
+  /* the given part to the parent */
+
+  r = mailmime_add_part(mp, mime_sub);
+  if (r != MAILIMF_NO_ERROR) {
+    res = MAILIMF_ERROR_MEMORY;
+    goto free_saved_sub;
+  }
+
+  return MAILIMF_NO_ERROR;
+
+ free_mp:
+  mailmime_free(mp);
+ free_saved_sub:
+  mailmime_free(saved_sub);
+ err:
+  return res;
+}
+
+
+
+/* detach part from parent and free it only if the part has no child */
+
+int mailmime_smart_remove_part(struct mailmime * mime)
+{
+  struct mailmime * parent;
+  int res;
+
+  parent = mime->mm_parent;
+  if (parent == NULL) {
+    res = MAILIMF_ERROR_INVAL;
+    goto err;
+  }
+
+  switch (mime->mm_type) {
+  case MAILMIME_MESSAGE:
+    if (mime->mm_data.mm_message.mm_msg_mime != NULL) {
+      res = MAILIMF_ERROR_INVAL;
+      goto err;
+    }
+
+    mailmime_remove_part(mime);
+    
+    mailmime_free(mime);
+
+    return MAILIMF_NO_ERROR;
+
+  case MAILMIME_MULTIPLE:
+    if (!clist_isempty(mime->mm_data.mm_multipart.mm_mp_list)) {
+      res = MAILIMF_ERROR_INVAL;
+      goto err;
+    }
+      
+    mailmime_remove_part(mime);
+    
+    mailmime_free(mime);
+    
+    return MAILIMF_NO_ERROR;
+
+  case MAILMIME_SINGLE:
+    mailmime_remove_part(mime);
+
+    mailmime_free(mime);
+
+    return MAILIMF_NO_ERROR;
+    
+  default:
+    return MAILIMF_ERROR_INVAL;
+  }
+
+ err:
+  return res;
+}
+
+
+/* create a mailmime_content structure (Content-Type field) */
+
+struct mailmime_content * mailmime_content_new_with_str(const char * str)
+{
+  int r;
+  size_t cur_token;
+  struct mailmime_content * content;
+
+  cur_token = 0;
+  r =  mailmime_content_parse(str, strlen(str), &cur_token, &content);
+  if (r != MAILIMF_NO_ERROR)
+    return NULL;
+  
+  return content;
+}
+
+/* create MIME fields with only the field Content-Transfer-Encoding */
+
+struct mailmime_fields * mailmime_fields_new_encoding(int type)
+{
+  struct mailmime_mechanism * encoding;
+  struct mailmime_fields * mime_fields;
+
+  encoding = mailmime_mechanism_new(type, NULL);
+  if (encoding == NULL)
+    goto err;
+
+  mime_fields = mailmime_fields_new_with_data(encoding,
+      NULL, NULL, NULL, NULL);
+  if (mime_fields == NULL)
+    goto free;
+
+  return mime_fields;
+
+ free:
+  mailmime_mechanism_free(encoding);
+ err:
+  return NULL;
+}
+
+
+/* create a multipart MIME part */
+
+struct mailmime * mailmime_multiple_new(const char * type)
+{
+  struct mailmime_fields * mime_fields;
+  struct mailmime_content * content;
+  struct mailmime * mp;
+
+  mime_fields = mailmime_fields_new_encoding(MAILMIME_MECHANISM_8BIT);
+  if (mime_fields == NULL)
+    goto err;
+  
+  content = mailmime_content_new_with_str(type);
+  if (content == NULL)
+    goto free_fields;
+  
+  mp = mailmime_new_empty(content, mime_fields);
+  if (mp == NULL)
+    goto free_content;
+  
+  return mp;
+
+ free_content:
+  mailmime_content_free(content);
+ free_fields:
+  mailmime_fields_free(mime_fields);
+ err:
+  return NULL;
+}
+
+
+
+void mailmime_set_imf_fields(struct mailmime * build_info,
+    struct mailimf_fields * mm_fields)
+{
+  build_info->mm_data.mm_message.mm_fields = mm_fields;
+}
+
+#if 0
+struct mailmime_content * mailmime_get_content(char * mime_type)
+{
+  struct mailmime_content *content;
+  int r;
+  size_t cur_token;
+
+  cur_token = 0;
+  r = mailmime_content_parse(mime_type, strlen(mime_type),
+			     &cur_token, &content);
+  if (r != MAILIMF_NO_ERROR)
+    return NULL;
+  
+  return content;
+}
+#endif
+
+
+
+
+struct mailmime_disposition *
+mailmime_disposition_new_with_data(int type,
+    char * filename, char * creation_date, char * modification_date,
+    char * read_date, size_t size)
+{
+  struct mailmime_disposition_type * dsp_type;
+  clist * list;
+  int r;
+  struct mailmime_disposition_parm * parm;
+  struct mailmime_disposition * dsp;
+
+  dsp_type = mailmime_disposition_type_new(type, NULL);
+  if (dsp_type == NULL)
+    goto err;
+
+  list = clist_new();
+  if (list == NULL)
+    goto free_dsp_type;
+
+  if (filename != NULL) {
+    parm = mailmime_disposition_parm_new(MAILMIME_DISPOSITION_PARM_FILENAME,
+        filename, NULL, NULL, NULL, 0, NULL);
+    if (parm == NULL)
+      goto free_list;
+    
+    r = clist_append(list, parm);
+    if (r < 0) {
+      mailmime_disposition_parm_free(parm);
+      goto free_list;
+    }
+  }
+
+  if (creation_date != NULL) {
+    parm = mailmime_disposition_parm_new(MAILMIME_DISPOSITION_PARM_CREATION_DATE,
+        NULL, creation_date, NULL, NULL, 0, NULL);
+    if (parm == NULL)
+      goto free_list;
+    
+    r = clist_append(list, parm);
+    if (r < 0) {
+      mailmime_disposition_parm_free(parm);
+      goto free_list;
+    }
+  }
+
+  if (modification_date != NULL) {
+    parm = mailmime_disposition_parm_new(MAILMIME_DISPOSITION_PARM_MODIFICATION_DATE,
+        NULL, NULL, modification_date, NULL, 0, NULL);
+    if (parm == NULL)
+      goto free_list;
+    
+    r = clist_append(list, parm);
+    if (r < 0) {
+      mailmime_disposition_parm_free(parm);
+      goto free_list;
+    }
+  }
+
+  if (read_date != NULL) {
+    parm = mailmime_disposition_parm_new(MAILMIME_DISPOSITION_PARM_READ_DATE,
+        NULL, NULL, NULL, read_date, 0, NULL);
+    if (parm == NULL)
+      goto free_list;
+    
+    r = clist_append(list, parm);
+    if (r < 0) {
+      mailmime_disposition_parm_free(parm);
+      goto free_list;
+    }
+  }
+
+  if (size != (size_t) -1) {
+    parm = mailmime_disposition_parm_new(MAILMIME_DISPOSITION_PARM_SIZE,
+        NULL, NULL, NULL, NULL, size, NULL);
+    if (parm == NULL)
+      goto free_list;
+    
+    r = clist_append(list, parm);
+    if (r < 0) {
+      mailmime_disposition_parm_free(parm);
+      goto free_list;
+    }
+  }
+
+  dsp = mailmime_disposition_new(dsp_type, list);
+
+  return dsp;
+
+ free_list:
+  clist_foreach(list, (clist_func) mailmime_disposition_parm_free, NULL);
+  clist_free(list);
+ free_dsp_type:
+  mailmime_disposition_type_free(dsp_type);
+ err:
+  return NULL;
+}
+
+
+static void mailmime_disposition_single_fields_init(struct
+    mailmime_single_fields * single_fields,
+    struct mailmime_disposition * fld_disposition)
+{
+  clistiter * cur;
+
+  single_fields->fld_disposition = fld_disposition;
+
+  for(cur = clist_begin(fld_disposition->dsp_parms) ; cur != NULL ;
+      cur = clist_next(cur)) {
+    struct mailmime_disposition_parm * param;
+
+    param = clist_content(cur);
+
+    switch (param->pa_type) {
+    case MAILMIME_DISPOSITION_PARM_FILENAME:
+      single_fields->fld_disposition_filename = param->pa_data.pa_filename;
+      break;
+
+    case MAILMIME_DISPOSITION_PARM_CREATION_DATE:
+      single_fields->fld_disposition_creation_date =
+        param->pa_data.pa_creation_date;
+      break;
+      
+    case MAILMIME_DISPOSITION_PARM_MODIFICATION_DATE:
+      single_fields->fld_disposition_modification_date =
+        param->pa_data.pa_modification_date;
+      break;
+      
+    case MAILMIME_DISPOSITION_PARM_READ_DATE:
+      single_fields->fld_disposition_read_date =
+        param->pa_data.pa_read_date;
+      break;
+      
+    case MAILMIME_DISPOSITION_PARM_SIZE:
+      single_fields->fld_disposition_size = param->pa_data.pa_size;
+      break;
+    }
+  }
+}
+
+static void mailmime_content_single_fields_init(struct
+    mailmime_single_fields * single_fields,
+    struct mailmime_content * fld_content)
+{
+  clistiter * cur;
+
+  single_fields->fld_content = fld_content;
+
+  for(cur = clist_begin(fld_content->ct_parameters) ;
+      cur != NULL ; cur = clist_next(cur)) {
+    struct mailmime_parameter * param;
+    
+    param = clist_content(cur);
+
+    if (strcasecmp(param->pa_name, "boundary") == 0)
+      single_fields->fld_content_boundary = param->pa_value;
+
+    if (strcasecmp(param->pa_name, "charset") == 0)
+      single_fields->fld_content_charset = param->pa_value;
+
+    if (strcasecmp(param->pa_name, "name") == 0)
+      single_fields->fld_content_name = param->pa_value;
+  }
+}
+
+void mailmime_single_fields_init(struct mailmime_single_fields * single_fields,
+    struct mailmime_fields * fld_fields,
+    struct mailmime_content * fld_content)
+{
+  clistiter * cur;
+
+  memset(single_fields, 0, sizeof(struct mailmime_single_fields));
+
+  if (fld_content != NULL)
+    mailmime_content_single_fields_init(single_fields, fld_content);
+  
+  if (fld_fields == NULL)
+    return;
+  
+  for(cur = clist_begin(fld_fields->fld_list) ; cur != NULL ;
+      cur = clist_next(cur)) {
+    struct mailmime_field * field;
+
+    field = clist_content(cur);
+
+    switch (field->fld_type) {
+    case MAILMIME_FIELD_TYPE:
+      mailmime_content_single_fields_init(single_fields,
+          field->fld_data.fld_content);
+      break;
+
+    case MAILMIME_FIELD_TRANSFER_ENCODING:
+      single_fields->fld_encoding = field->fld_data.fld_encoding;
+      break;
+
+    case MAILMIME_FIELD_ID:
+      single_fields->fld_id = field->fld_data.fld_id;
+      break;
+
+    case MAILMIME_FIELD_DESCRIPTION:
+      single_fields->fld_description = field->fld_data.fld_description;
+      break;
+
+    case MAILMIME_FIELD_VERSION:
+      single_fields->fld_version = field->fld_data.fld_version;
+      break;
+
+    case MAILMIME_FIELD_DISPOSITION:
+      mailmime_disposition_single_fields_init(single_fields,
+          field->fld_data.fld_disposition);
+      break;
+
+    case MAILMIME_FIELD_LANGUAGE:
+      single_fields->fld_language = field->fld_data.fld_language;
+      break;
+    }
+  }
+}
+
+struct mailmime_single_fields *
+mailmime_single_fields_new(struct mailmime_fields * fld_fields,
+    struct mailmime_content * fld_content)
+{
+  struct mailmime_single_fields * single_fields;
+
+  single_fields = malloc(sizeof(struct mailmime_single_fields));
+  if (single_fields == NULL)
+    goto err;
+
+  mailmime_single_fields_init(single_fields, fld_fields, fld_content);
+
+  return single_fields;
+
+ err:
+  return NULL;
+}
+
+
+void mailmime_single_fields_free(struct mailmime_single_fields *
+    single_fields)
+{
+  free(single_fields);
+}
+
+struct mailmime_fields * mailmime_fields_new_filename(int dsp_type,
+    char * filename, int encoding_type)
+{
+  struct mailmime_disposition * dsp;
+  struct mailmime_mechanism * encoding;
+  struct mailmime_fields * mime_fields;
+
+  dsp = mailmime_disposition_new_with_data(dsp_type,
+    filename, NULL, NULL, NULL, (size_t) -1);
+  if (dsp == NULL)
+    goto err;
+
+  encoding = mailmime_mechanism_new(encoding_type, NULL);
+  if (encoding == NULL)
+    goto free_dsp;
+
+  mime_fields = mailmime_fields_new_with_data(encoding,
+			      NULL, NULL, dsp, NULL);
+  if (mime_fields == NULL)
+    goto free_encoding;
+
+  return mime_fields;
+
+ free_encoding:
+  mailmime_encoding_free(encoding);
+ free_dsp:
+  mailmime_disposition_free(dsp);
+ err:
+  return NULL;
+}
+
+struct mailmime_data *
+mailmime_data_new_data(int encoding, int encoded,
+		       const char * data, size_t length)
+{
+  return mailmime_data_new(MAILMIME_DATA_TEXT, encoding, encoded, data, length, NULL);
+}
+
+struct mailmime_data *
+mailmime_data_new_file(int encoding, int encoded,
+		       char * filename)
+{
+  return mailmime_data_new(MAILMIME_DATA_FILE, encoding, encoded, NULL, 0, filename);
+}
+
--
cgit v0.9.0.2