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/driver/interface/mailmessage_tools.c')

diff --git a/libetpan/src/driver/interface/mailmessage_tools.c b/libetpan/src/driver/interface/mailmessage_tools.c
new file mode 100644
index 0000000..9e53173
--- a/dev/null
+++ b/libetpan/src/driver/interface/mailmessage_tools.c
@@ -0,0 +1,600 @@
+/*
+ * 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 "mailmessage_tools.h"
+#include "mailmessage.h"
+
+#include <stdlib.h>
+
+#include "maildriver.h"
+#include "maildriver_tools.h"
+
+int
+mailmessage_generic_initialize(mailmessage * msg_info)
+{
+  struct generic_message_t * msg;
+
+  msg = malloc(sizeof(* msg));
+
+  if (msg == NULL) {
+    return MAIL_ERROR_MEMORY;
+  }
+  
+  msg->msg_fetched = 0;
+  msg->msg_message = NULL;
+  msg->msg_length = 0;
+
+  msg->msg_prefetch = NULL;
+  msg->msg_prefetch_free = NULL;
+  msg->msg_data = NULL;
+
+  msg_info->msg_data = msg;
+
+  return MAIL_NO_ERROR;
+}
+
+void mailmessage_generic_flush(mailmessage * msg_info)
+{
+  struct generic_message_t * msg;
+
+  if (msg_info->msg_mime != NULL) {
+    mailmime_free(msg_info->msg_mime);
+    msg_info->msg_mime = NULL;
+  }
+  msg = msg_info->msg_data;
+  if (msg != NULL) {
+    if (msg->msg_prefetch_free != NULL)
+      msg->msg_prefetch_free(msg);
+    msg->msg_fetched = 0;
+  }
+}
+
+void mailmessage_generic_uninitialize(mailmessage * msg_info)
+{
+  struct generic_message_t * msg;
+
+  mailmessage_generic_flush(msg_info);
+
+  msg = msg_info->msg_data;
+  msg_info->msg_data = NULL;
+  free(msg);
+}
+
+static inline int
+mailmessage_generic_prefetch(mailmessage * msg_info)
+{
+  struct generic_message_t * msg;
+  int r;
+  
+  msg = msg_info->msg_data;
+  
+  if (msg->msg_fetched)
+    return MAIL_NO_ERROR;
+  
+#if 0
+  if (msg->message != NULL)
+    return MAIL_NO_ERROR;
+#endif
+  
+  r = msg->msg_prefetch(msg_info);
+  if (r != MAIL_NO_ERROR)
+    return r;
+  
+  msg->msg_fetched = 1;
+  
+  return MAIL_NO_ERROR;
+}
+
+static int
+mailmessage_generic_prefetch_bodystructure(mailmessage * msg_info)
+{
+  size_t length;
+  char * message;
+  size_t cur_token;
+  struct mailmime * mime;
+  int r;
+  int res;
+  struct generic_message_t * msg;
+
+  if (msg_info->msg_mime != NULL) {
+    /* it has already been fetched */
+    return MAIL_NO_ERROR;
+  }
+
+#if 0
+  msg = msg_info->data;
+  if (msg->message == NULL) {
+    r = mailmessage_generic_prefetch(msg_info);
+    if (r != MAIL_NO_ERROR) {
+      res = r;
+      goto err;
+    }
+  }
+#endif
+  r = mailmessage_generic_prefetch(msg_info);
+  if (r != MAIL_NO_ERROR) {
+    res = r;
+    goto err;
+  }
+  
+  msg = msg_info->msg_data;
+  message = msg->msg_message;
+  length = msg->msg_length;
+  cur_token = 0;
+  r = mailmime_parse(message, length, &cur_token, &mime);
+  if (r != MAILIMF_NO_ERROR) {
+    res = MAIL_ERROR_PARSE;
+    goto err;
+  }
+
+  msg_info->msg_mime = mime;
+
+  return MAIL_NO_ERROR;
+
+ err:
+  return res;
+}
+
+void
+mailmessage_generic_fetch_result_free(mailmessage * msg_info, char * msg)
+{
+  int r;
+  
+  r = mmap_string_unref(msg);
+}
+
+int mailmessage_generic_fetch(mailmessage * msg_info,
+			      char ** result,
+			      size_t * result_len)
+{
+  int r;
+  char * message;
+  size_t cur_token;
+  size_t length;
+  MMAPString * mmapstr;
+  int res;
+  struct generic_message_t * msg;
+
+  msg = msg_info->msg_data;
+  r = mailmessage_generic_prefetch(msg_info);
+  if (r != MAIL_NO_ERROR) {
+    res = r;
+    goto err;
+  }
+
+  message = msg->msg_message;
+  length = msg->msg_length;
+  cur_token = 0;
+  
+  mmapstr = mmap_string_new_len(message, length);
+  if (mmapstr == NULL) {
+    res = MAIL_ERROR_MEMORY;
+    goto err;
+  }
+  
+  r = mmap_string_ref(mmapstr);
+  if (r < 0) {
+    res = MAIL_ERROR_MEMORY;
+    goto free_mmap;
+  }
+  
+  * result = mmapstr->str;
+  * result_len = length;
+
+  return MAIL_NO_ERROR;
+
+ free_mmap:
+  mmap_string_free(mmapstr);
+ err:
+  return res;
+}
+
+int mailmessage_generic_fetch_header(mailmessage * msg_info,
+				     char ** result,
+				     size_t * result_len)
+{
+  int r;
+  char * message;
+  size_t cur_token;
+  size_t length;
+  MMAPString * mmapstr;
+  char * headers;
+  int res;
+  struct generic_message_t * msg;
+
+  msg = msg_info->msg_data;
+  r = mailmessage_generic_prefetch(msg_info);
+  if (r != MAIL_NO_ERROR) {
+    res = r;
+    goto err;
+  }
+
+  message = msg->msg_message;
+  length = msg->msg_length;
+  cur_token = 0;
+  
+  while (1) {
+    r = mailimf_ignore_field_parse(message, length, &cur_token);
+    if (r == MAILIMF_NO_ERROR) {
+      /* do nothing */
+    }
+    else
+      break;
+  }
+  mailimf_crlf_parse(message, length, &cur_token);
+  
+  mmapstr = mmap_string_new_len(message, cur_token);
+  if (mmapstr == NULL) {
+    res = MAIL_ERROR_MEMORY;
+    goto err;
+  }
+  
+  r = mmap_string_ref(mmapstr);
+  if (r < 0) {
+    res = MAIL_ERROR_MEMORY;
+    goto free_mmap;
+  }
+  
+  headers = mmapstr->str;
+
+  * result = headers;
+  * result_len = cur_token;
+
+  return MAIL_NO_ERROR;
+
+ free_mmap:
+  mmap_string_free(mmapstr);
+ err:
+  return res;
+}
+
+int mailmessage_generic_fetch_body(mailmessage * msg_info,
+				   char ** result, size_t * result_len)
+{
+  int r;
+  char * message;
+  size_t cur_token;
+  MMAPString * mmapstr;
+  size_t length;
+  int res;
+  struct generic_message_t * msg;
+
+  msg = msg_info->msg_data;
+  r = mailmessage_generic_prefetch(msg_info);
+  if (r != MAIL_NO_ERROR) {
+    res = r;
+    goto err;
+  }
+
+  message = msg->msg_message;
+  length = msg->msg_length;
+  cur_token = 0;
+
+  while (1) {
+    r = mailimf_ignore_field_parse(message, length, &cur_token);
+    if (r == MAILIMF_NO_ERROR) {
+      /* do nothing */
+    }
+    else
+      break;
+  }
+  mailimf_crlf_parse(message, length, &cur_token);
+
+  mmapstr = mmap_string_new_len(message + cur_token, length - cur_token);
+  if (mmapstr == NULL) {
+    res = MAIL_ERROR_MEMORY;
+    goto err;
+  }
+
+  r = mmap_string_ref(mmapstr);
+  if (r < 0) {
+    res = MAIL_ERROR_MEMORY;
+    goto free_mmap;
+  }
+
+  * result = mmapstr->str;
+  * result_len = length - cur_token;
+
+  return MAIL_NO_ERROR;
+
+ free_mmap:
+  mmap_string_free(mmapstr);
+ err:
+  return res;
+}
+
+
+
+
+int
+mailmessage_generic_get_bodystructure(mailmessage * msg_info,
+				      struct mailmime ** result)
+{
+  int r;
+
+  r = mailmessage_generic_prefetch_bodystructure(msg_info);
+  if (r != MAIL_NO_ERROR)
+    return r;
+
+  * result = msg_info->msg_mime;
+
+  return MAIL_NO_ERROR;
+}
+
+
+
+
+int
+mailmessage_generic_fetch_section(mailmessage * msg_info,
+				  struct mailmime * mime,
+				  char ** result, size_t * result_len)
+{
+  MMAPString * mmapstr;
+  int r;
+  int res;
+
+  mmapstr = mmap_string_new_len(mime->mm_body->dt_data.dt_text.dt_data,
+				mime->mm_body->dt_data.dt_text.dt_length);
+  if (mmapstr == NULL) {
+    res = MAIL_ERROR_MEMORY;
+    goto err;
+  }
+
+  r = mmap_string_ref(mmapstr);
+  if (r < 0) {
+    res = MAIL_ERROR_MEMORY;
+    goto free_mmap;
+  }
+
+  * result = mmapstr->str;
+  * result_len = mmapstr->len;
+
+  return MAIL_NO_ERROR;
+
+ free_mmap:
+  mmap_string_free(mmapstr);
+ err:
+  return res;
+}
+
+int
+mailmessage_generic_fetch_section_header(mailmessage * msg_info,
+					 struct mailmime * mime,
+					 char ** result,
+					 size_t * result_len)
+{
+  MMAPString * mmapstr;
+  int r;
+  int res;
+  size_t cur_token;
+
+  /* skip mime */
+
+  cur_token = 0;
+
+  if (mime->mm_type == MAILMIME_MESSAGE) {
+
+    while (1) {
+      r = mailimf_ignore_field_parse(mime->mm_body->dt_data.dt_text.dt_data,
+          mime->mm_body->dt_data.dt_text.dt_length, &cur_token);
+      if (r == MAILIMF_NO_ERROR) {
+	/* do nothing */
+      }
+      else
+	break;
+    }
+    
+    r = mailimf_crlf_parse(mime->mm_body->dt_data.dt_text.dt_data,
+        mime->mm_body->dt_data.dt_text.dt_length, &cur_token);
+    if ((r != MAILIMF_NO_ERROR) && (r != MAILIMF_ERROR_PARSE)) {
+      res = maildriver_imf_error_to_mail_error(r);
+      goto err;
+    }
+  }
+
+  mmapstr = mmap_string_new_len(mime->mm_body->dt_data.dt_text.dt_data,
+      cur_token);
+  if (mmapstr == NULL) {
+    res = MAIL_ERROR_MEMORY;
+    goto err;
+  }
+
+  r = mmap_string_ref(mmapstr);
+  if (r < 0) {
+    res = MAIL_ERROR_MEMORY;
+    goto free_mmap;
+  }
+
+  * result = mmapstr->str;
+  * result_len = mmapstr->len;
+
+  return MAIL_NO_ERROR;
+
+ free_mmap:
+  mmap_string_free(mmapstr);
+ err:
+  return res;
+}
+
+int
+mailmessage_generic_fetch_section_mime(mailmessage * msg_info,
+				       struct mailmime * mime,
+				       char ** result,
+				       size_t * result_len)
+{
+  MMAPString * mmapstr;
+  int r;
+  int res;
+  size_t cur_token;
+
+  cur_token = 0;
+
+  /* skip header */
+  
+  while (1) {
+    r = mailimf_ignore_field_parse(mime->mm_mime_start,
+				   mime->mm_length, &cur_token);
+    if (r == MAILIMF_NO_ERROR) {
+      /* do nothing */
+    }
+    else
+      break;
+  }
+
+  r = mailimf_crlf_parse(mime->mm_mime_start, mime->mm_length, &cur_token);
+  if ((r != MAILIMF_NO_ERROR) && (r != MAILIMF_ERROR_PARSE)) {
+    res = maildriver_imf_error_to_mail_error(r);
+    goto err;
+  }
+
+  mmapstr = mmap_string_new_len(mime->mm_mime_start, cur_token);
+  if (mmapstr == NULL) {
+    res = MAIL_ERROR_MEMORY;
+    goto err;
+  }
+
+  r = mmap_string_ref(mmapstr);
+  if (r < 0) {
+    res = MAIL_ERROR_MEMORY;
+    goto free_mmap;
+  }
+
+  * result = mmapstr->str;
+  * result_len = mmapstr->len;
+
+  return MAIL_NO_ERROR;
+
+ free_mmap:
+  mmap_string_free(mmapstr);
+ err:
+  return res;
+}
+
+int
+mailmessage_generic_fetch_section_body(mailmessage * msg_info,
+				       struct mailmime * mime,
+				       char ** result,
+				       size_t * result_len)
+{
+  MMAPString * mmapstr;
+  int r;
+  int res;
+  size_t cur_token;
+
+  cur_token = 0;
+
+  if (mime->mm_type == MAILMIME_MESSAGE) {
+
+    /* skip header */
+
+    while (1) {
+      r = mailimf_ignore_field_parse(mime->mm_body->dt_data.dt_text.dt_data,
+          mime->mm_body->dt_data.dt_text.dt_length, &cur_token);
+      if (r == MAILIMF_NO_ERROR) {
+	/* do nothing */
+      }
+      else
+	break;
+    }
+    
+    r = mailimf_crlf_parse(mime->mm_body->dt_data.dt_text.dt_data,
+        mime->mm_body->dt_data.dt_text.dt_length, &cur_token);
+    if ((r != MAILIMF_NO_ERROR) && (r != MAILIMF_ERROR_PARSE)) {
+      res = maildriver_imf_error_to_mail_error(r);
+      goto err;
+    }
+  }
+
+  mmapstr = mmap_string_new_len(mime->mm_body->dt_data.dt_text.dt_data +
+      cur_token, mime->mm_body->dt_data.dt_text.dt_length - cur_token);
+  if (mmapstr == NULL) {
+    res = MAIL_ERROR_MEMORY;
+    goto err;
+  }
+
+  r = mmap_string_ref(mmapstr);
+  if (r < 0) {
+    res = MAIL_ERROR_MEMORY;
+    goto free_mmap;
+  }
+
+  * result = mmapstr->str;
+  * result_len = mmapstr->len;
+
+  return MAIL_NO_ERROR;
+
+ free_mmap:
+  mmap_string_free(mmapstr);
+ err:
+  return res;
+}
+
+int mailmessage_generic_fetch_envelope(mailmessage * msg_info,
+				       struct mailimf_fields ** result)
+{
+  int r;
+  int res;
+  size_t cur_token;
+  char * header;
+  size_t length;
+  struct mailimf_fields * fields;
+
+  r = mailmessage_fetch_header(msg_info, &header, &length);
+  if (r != MAIL_NO_ERROR) {
+    res = r;
+    goto err;
+  }
+  
+  cur_token = 0;
+  
+  r = mailimf_envelope_fields_parse(header, length, &cur_token,
+				    &fields);
+  if (r != MAILIMF_NO_ERROR) {
+    res = maildriver_imf_error_to_mail_error(r);
+    goto free;
+    /* do nothing */
+  }
+
+  mailmessage_fetch_result_free(msg_info, header);
+  
+  * result = fields;
+
+  return MAIL_NO_ERROR;
+
+ free:
+  mailmessage_fetch_result_free(msg_info, header);
+ err:
+  return res;
+}
--
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