Issue #1258 - Part 1: Import mailnews, ldap, and mork from comm-esr52.9.1

1 files changed, 198 insertions, 0 deletions

diff --git a/mailnews/base/util/nsMsgI18N.h b/mailnews/base/util/nsMsgI18N.h
new file mode 100644
index 000000000..e58ae620a
--- /dev/null
+++ b/mailnews/base/util/nsMsgI18N.h
@@ -0,0 +1,198 @@
+/* -*- Mode: C++; tab-width: 2; 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/. */
+
+#ifndef _nsMsgI18N_H_
+#define _nsMsgI18N_H_
+
+#include "nscore.h"
+#include "msgCore.h"
+#include "nsStringGlue.h"
+class nsIFile;
+
+/**
+ * Encode an input string into RFC 2047 form.
+ *
+ * @param header       [IN] A header to encode.
+ * @param structured   [IN] Specify the header is structured or non-structured field (See RFC-822).
+ * @param charset      [IN] Charset name to convert.
+ * @param fieldnamelen [IN] Header field name length. (e.g. "From: " -> 6)
+ * @param usemime      [IN] If false then apply charset conversion only no MIME encoding.
+ * @return             Encoded buffer (in C string) or NULL in case of error.
+ */
+NS_MSG_BASE char      *nsMsgI18NEncodeMimePartIIStr(const char *header, bool structured, const char *charset, int32_t fieldnamelen, bool usemime);
+
+/**
+ * Check if given charset is stateful (e.g. ISO-2022-JP).
+ *
+ * @param charset     [IN] Charset name.
+ * @return            True if stateful
+ */
+NS_MSG_BASE bool      nsMsgI18Nstateful_charset(const char *charset);
+
+/**
+ * Check if given charset is multibye (e.g. Shift_JIS, Big5).
+ *
+ * @param charset     [IN] Charset name.
+ * @return            True if multibyte
+ */
+NS_MSG_BASE bool nsMsgI18Nmultibyte_charset(const char *charset);
+
+/**
+ * Check the input (unicode) string is in a range of the given charset after the conversion.
+ * Note, do not use this for large string (e.g. message body) since this actually applies the conversion to the buffer.
+ *
+ * @param charset     [IN] Charset to be converted.
+ * @param inString    [IN] Input unicode string to be examined.
+ * @param fallbackCharset [OUT]
+ *                         null if fallback charset is not needed.
+ *                         Otherwise, a fallback charset name may be set if that was used for the conversion. 
+ *                         Caller is responsible for freeing the memory.
+ * @return            True if the string can be converted within the charset range.
+ *                    False if one or more characters cannot be converted to the target charset.
+ */
+NS_MSG_BASE bool      nsMsgI18Ncheck_data_in_charset_range(const char *charset, const char16_t* inString,
+                                                           char **fallbackCharset=nullptr);
+
+/**
+ * Return charset name of file system (OS dependent).
+ *
+ * @return            File system charset name.
+ */
+NS_MSG_BASE const char * nsMsgI18NFileSystemCharset(void);
+
+/**
+ * Return charset name of text file (OS dependent).
+ *
+ * @param aCharset    [OUT] Text file charset name.
+ */
+NS_MSG_BASE void nsMsgI18NTextFileCharset(nsACString& aCharset);
+
+/**
+ * Convert from unicode to target charset.
+ *
+ * @param charset     [IN] Charset name.
+ * @param inString    [IN] Unicode string to convert.
+ * @param outString   [OUT] Converted output string.
+ * @param aIsCharsetCanonical  [IN] Whether the charset is canonical or not.
+ * @param aReportUencNoMapping [IN] Set encoder to report (instead of using
+ *                                  replacement char on errors). Set to true
+ *                                  to receive NS_ERROR_UENC_NOMAPPING when
+ *                                  that happens. Note that
+ *                                  NS_ERROR_UENC_NOMAPPING is a success code!
+ * @return            nsresult.
+ */
+NS_MSG_BASE nsresult nsMsgI18NConvertFromUnicode(const char* aCharset,
+                                                 const nsString& inString,
+                                                 nsACString& outString,
+                                                 bool aIsCharsetCanonical =
+                                                        false,
+                                                 bool reportUencNoMapping =
+                                                        false);
+/**
+ * Convert from charset to unicode.
+ *
+ * @param charset     [IN] Charset name.
+ * @param inString    [IN] Input string to convert.
+ * @param outString   [OUT] Output unicode string.
+ * @return            nsresult.
+ */
+NS_MSG_BASE nsresult nsMsgI18NConvertToUnicode(const char* aCharset,
+                                               const nsCString& inString,
+                                               nsAString& outString,
+                                               bool aIsCharsetCanonical =
+                                                      false);
+/**
+ * Parse for META charset.
+ *
+ * @param file    [IN] A nsIFile.
+ * @return            A charset name or empty string if not found.
+ */
+NS_MSG_BASE const char *nsMsgI18NParseMetaCharset(nsIFile* file);
+
+/**
+ * Shrink the aStr to aMaxLength bytes. Note that this doesn't check whether
+ * the aUTF8Str is valid UTF-8 string.
+ *
+ * @param inString   [IN] Input UTF-8 string (it must be valid UTF-8 string)
+ * @param aMaxLength [IN] Shrink to this length (it means bytes)
+ * @param outString  [OUT] Shrunken UTF-8 string
+ * @return           nsresult
+ */
+NS_MSG_BASE nsresult nsMsgI18NShrinkUTF8Str(const nsCString &inString,
+                                            uint32_t aMaxLength,
+                                            nsACString &outString);
+
+/*
+ * Convert raw bytes in header to UTF-16
+ *
+ * @param inString   [IN] Input raw octets
+ * @param outString  [OUT] Output UTF-16 string
+ */
+NS_MSG_BASE void nsMsgI18NConvertRawBytesToUTF16(const nsCString& inString, 
+                                                 const char* charset,
+                                                 nsAString& outString);
+
+/*
+ * Convert raw bytes in header to UTF-8
+ *
+ * @param inString   [IN] Input raw octets
+ * @param outString  [OUT] Output UTF-8 string
+ */
+NS_MSG_BASE void nsMsgI18NConvertRawBytesToUTF8(const nsCString& inString, 
+                                                const char* charset,
+                                                nsACString& outString);
+
+// inline forwarders to avoid littering with 'x-imap4-.....'
+inline nsresult CopyUTF16toMUTF7(const nsString &aSrc, nsACString& aDest)
+{
+    return nsMsgI18NConvertFromUnicode("x-imap4-modified-utf7", aSrc,
+                                       aDest, true);
+}
+
+inline nsresult CopyMUTF7toUTF16(const nsCString& aSrc, nsAString& aDest)
+{
+    return nsMsgI18NConvertToUnicode("x-imap4-modified-utf7", aSrc,
+                                     aDest, true);
+}
+
+inline nsresult ConvertToUnicode(const char* charset,
+                                 const nsCString &aSrc, nsAString& aDest)
+{
+    return nsMsgI18NConvertToUnicode(charset, aSrc, aDest);
+}
+
+inline nsresult ConvertToUnicode(const char* charset,
+                                 const char* aSrc, nsAString& aDest)
+{
+    return nsMsgI18NConvertToUnicode(charset, nsDependentCString(aSrc), aDest);
+}
+
+inline nsresult ConvertFromUnicode(const char* charset,
+                                   const nsString &aSrc, nsACString& aDest)
+{
+    return nsMsgI18NConvertFromUnicode(charset, aSrc, aDest);
+}
+
+inline void ConvertRawBytesToUTF16(const nsCString& inString, 
+                                   const char* charset, nsAString& outString)
+{
+    return nsMsgI18NConvertRawBytesToUTF16(inString, charset, outString);
+}
+
+inline void ConvertRawBytesToUTF16(const char* inString, 
+                                   const char* charset, nsAString& outString)
+{
+    return nsMsgI18NConvertRawBytesToUTF16(nsDependentCString(inString),
+                                           charset,
+                                           outString);
+}
+
+inline void ConvertRawBytesToUTF8(const nsCString& inString, 
+                                  const char* charset, nsACString& outString)
+{
+    return nsMsgI18NConvertRawBytesToUTF8(inString, charset, outString);
+}
+
+#endif /* _nsMsgI18N_H_ */