读信页标题的解码

hechengjin

messageWindow.xul
messageWindow.js

1. onDisplayingMessage:
   
2.       function StandaloneMessageDisplayWidget_onDisplayingMessage(aMsgHdr) {
   
3.     this.__proto__.__proto__.onDisplayingMessage.call(this, aMsgHdr);
   
4. 
   
5.     // - set the window title to the message subject (and maybe the app name)
   
6.     let docTitle = aMsgHdr.mime2DecodedSubject;
   
7. 
   
8.     // If the tab hasn't got a title, or we're on Mac, don't display
   
9.     // the separator.
   
10.     if (docTitle && !Application.platformIsMac)
    
11.         docTitle += document.documentElement
    
12.                             .getAttribute("titlemenuseparator");
    
13. 
    
14.     // If we haven't got a title at this stage add the modifier, or if
    
15.     // we are on a non-mac platform, add the modifier.
    
16.     if (!docTitle || !Application.platformIsMac)
    
17.          docTitle += document.documentElement
    
18.                              .getAttribute("titlemodifier");
    
19. 
    
20.     document.title = docTitle;

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nsMsgI18N.cpp

jimu

导入不标准邮件，对邮件标题按GB2312进行处理并编码，尽量保证不出现乱码
mailnews/local/src/nsParseMailbox.cpp
/mailnews/local/src/nsParseMailbox.h

1. int nsParseMailMessageState::InternSubject (struct message_header *header)
   
2. {
   
3.   char *key;
   
4.   uint32_t L;
   
5. 
   
6.   if (!header || header->length == 0)
   
7.   {
   
8.     m_newMsgHdr->SetSubject("");
   
9.     return 0;
   
10.   }
    
11. 
    
12.   NS_ASSERTION (header->length == (short) strlen(header->value), "subject corrupt while parsing message");
    
13. 
    
14.   key = (char *) header->value;  /* #### const evilness */
    
15. 
    
16.   L = header->length;
    
17. 
    
18. 
    
19.   uint32_t flags;
    
20.   (void)m_newMsgHdr->GetFlags(&flags);
    
21.   /* strip "Re: " */
    
22.   /**
    
23.         We trust the X-Mozilla-Status line to be the smartest in almost
    
24.         all things.  One exception, however, is the HAS_RE flag.  Since
    
25.          we just parsed the subject header anyway, we expect that parsing
    
26.          to be smartest.  (After all, what if someone just went in and
    
27.         edited the subject line by hand?)
    
28.      */
    
29.   nsCString modifiedSubject;
    
30.   if (NS_MsgStripRE((const char **) &key, &L, getter_Copies(modifiedSubject)))
    
31.     flags |= nsMsgMessageFlags::HasRe;
    
32.   else
    
33.     flags &= ~nsMsgMessageFlags::HasRe;
    
34.   m_newMsgHdr->SetFlags(flags); // this *does not* update the mozilla-status header in the local folder
    
35. 
    
36.   //  if (!*key) return 0; /* To catch a subject of "Re:" */
    
37. 
    
38.   // Condense the subject text into as few MIME-2 encoded words as possible.
    
39. #ifdef WE_CONDENSE_MIME_STRINGS
    
40.   char *condensedKey = msg_condense_mime2_string(modifiedSubject.IsEmpty() ? key : modifiedSubject.get());
    
41. #else
    
42.   char *condensedKey = nullptr;
    
43. #endif
    
44.   
    
45.   // 如果导入的邮件标题不符合标准格式没有编码，自己按GB2312处理并编码
    
46.   bool bStandard = IsStandardFormat(key, header->length);
    
47.   if (!bStandard)// 按gb2312处理
    
48.   {
    
49.           char *pszFixStr= FixStandardFormat(key, header->length);
    
50.           if (pszFixStr == nullptr)
    
51.           {
    
52.                   m_newMsgHdr->SetSubject(condensedKey ? condensedKey :
    
53.                           (modifiedSubject.IsEmpty() ? key : modifiedSubject.get()));
    
54.           }
    
55.           else
    
56.           {
    
57.                   m_newMsgHdr->SetSubject(condensedKey ? condensedKey :
    
58.                           (modifiedSubject.IsEmpty() ? pszFixStr : modifiedSubject.get()));
    
59.                   PR_FREEIF(pszFixStr);
    
60.           }
    
61.   }
    
62.   else // 正常处理
    
63.   {
    
64.           m_newMsgHdr->SetSubject(condensedKey ? condensedKey :
    
65.                   (modifiedSubject.IsEmpty() ? key : modifiedSubject.get()));
    
66.   }
    
67. 
    
68.   PR_FREEIF(condensedKey);
    
69. 
    
70.   return 0;
    
71. }
    
72. 
    
73. bool nsParseMailMessageState::IsStandardFormat(char *pszValue, uint32_t uiLen)
    
74. {
    
75.         for (uint32_t i = 0; i < uiLen; i++)
    
76.         {
    
77.                 if (pszValue[i] < 0x20 || pszValue[i] > 0x7e)
    
78.                 {
    
79.                         if (pszValue[i] == 0x0d || pszValue[i] == 0x0a)
    
80.                                 continue;
    
81. 
    
82.                         return false;
    
83.                 }
    
84.         }
    
85. 
    
86.         return true;
    
87. }
    
88. 
    
89. char* nsParseMailMessageState::FixStandardFormat(char *pszValue, uint32_t uiLen)
    
90. {
    
91.         nsCString UTF8Str;
    
92.         nsString UTF16Str;
    
93. 
    
94.         const char *pInternal = nullptr;
    
95.         ConvertToUnicode("gb2312", pszValue, UTF16Str);
    
96.         UTF8Str = NS_ConvertUTF16toUTF8(UTF16Str);
    
97.         uint32_t iLen = UTF8Str.GetData(&pInternal);
    
98. 
    
99.         char *pBase64 = PL_Base64Encode(pInternal, iLen, nullptr);
    
100.         if (pBase64 == nullptr)
     
101.                 return nullptr;
     
102. 
     
103.         char *pszBuffer = (char *)PR_Malloc(PL_strlen(pBase64) + 12 + 10);
     
104.         if (pszBuffer == nullptr)
     
105.         {
     
106.                 PR_Free(pBase64);
     
107.                 return nullptr;
     
108.         }
     
109. 
     
110.         memset(pszBuffer, 0, PL_strlen(pBase64) + 12 + 10);
     
111.         PL_strcat(pszBuffer, "=?UTF-8?B?");
     
112.         PL_strcat(pszBuffer, pBase64);
     
113.         PL_strcat(pszBuffer, "?=");
     
114. 
     
115.         return pszBuffer;
     
116. }
     
117. 
     
118. class nsParseMailMessageState : public nsIMsgParseMailMsgState, public nsIDBChangeListener
     
119. {
     
120. public:
     
121.   NS_DECL_ISUPPORTS
     
122.   NS_DECL_NSIMSGPARSEMAILMSGSTATE
     
123.   NS_DECL_NSIDBCHANGELISTENER
     
124. 
     
125.   nsParseMailMessageState();
     
126.   virtual               ~nsParseMailMessageState();
     
127. 
     
128.   void                  Init(uint32_t fileposition);
     
129.   virtual int32_t       ParseFolderLine(const char *line, uint32_t lineLength);
     
130.   virtual int           StartNewEnvelope(const char *line, uint32_t lineLength);
     
131.   int                   ParseHeaders();
     
132.   int                   FinalizeHeaders();
     
133.   int                   ParseEnvelope (const char *line, uint32_t line_size);
     
134.   int                   InternSubject (struct message_header *header);
     
135. 
     
136.   static bool    IsEnvelopeLine(const char *buf, int32_t buf_size);
     
137.   static int  msg_UnHex(char C);
     
138. 
     
139.   nsCOMPtr<nsIMsgHeaderParser> m_HeaderAddressParser;
     
140. 
     
141.   nsCOMPtr<nsIMsgDBHdr> m_newMsgHdr; /* current message header we're building */
     
142.   nsCOMPtr<nsIMsgDatabase>  m_mailDB;
     
143.   nsCOMPtr<nsIMsgDatabase> m_backupMailDB;
     
144. 
     
145.   nsMailboxParseState   m_state;
     
146.   int64_t              m_position;
     
147.   uint64_t              m_envelope_pos;
     
148.   uint64_t              m_headerstartpos;
     
149. 
     
150.   nsByteArray           m_headers;
     
151. 
     
152.   nsByteArray           m_envelope;
     
153. 
     
154.   struct message_header m_message_id;
     
155.   struct message_header m_references;
     
156.   struct message_header m_date;
     
157.   struct message_header m_delivery_date;
     
158.   struct message_header m_from;
     
159.   struct message_header m_sender;
     
160.   struct message_header m_newsgroups;
     
161.   struct message_header m_subject;
     
162.   struct message_header m_status;
     
163.   struct message_header m_mozstatus;
     
164.   struct message_header m_mozstatus2;
     
165.   struct message_header m_in_reply_to;
     
166.   struct message_header m_replyTo;
     
167.   struct message_header m_content_type;
     
168.   struct message_header m_bccList;
     
169. 
     
170.   // Support for having multiple To or Cc header lines in a message
     
171.   nsVoidArray m_toList;
     
172.   nsVoidArray m_ccList;
     
173.   struct message_header *GetNextHeaderInAggregate (nsVoidArray &list);
     
174.   void GetAggregateHeader (nsVoidArray &list, struct message_header *);
     
175.   void ClearAggregateHeader (nsVoidArray &list);
     
176. 
     
177.   struct message_header m_envelope_from;
     
178.   struct message_header m_envelope_date;
     
179.   struct message_header m_priority;
     
180.   struct message_header m_account_key;
     
181.   struct message_header m_keywords;
     
182.   // Mdn support
     
183.   struct message_header m_mdn_original_recipient;
     
184.   struct message_header m_return_path;
     
185.   struct message_header m_mdn_dnt; /* MDN Disposition-Notification-To: header */
     
186. 
     
187.   PRTime m_receivedTime;
     
188.   uint16_t              m_body_lines;
     
189. 
     
190.   bool                  m_IgnoreXMozillaStatus;
     
191. 
     
192.   // this enables extensions to add the values of particular headers to
     
193.   // the .msf file as properties of nsIMsgHdr. It is initialized from a
     
194.   // pref, mailnews.customDBHeaders
     
195.   nsTArray<nsCString>   m_customDBHeaders;
     
196.   struct message_header *m_customDBHeaderValues;
     
197. 
     
198.   bool IsStandardFormat(char *pszValue, uint32_t uiLen);
     
199.   char *FixStandardFormat(char *pszValue, uint32_t uiLen);
     
200. 
     
201. protected:
     
202. };
     
203. 
     
204. // this should go in some utility class.
     
205. inline int nsParseMailMessageState::msg_UnHex(char C)
     
206. {
     
207.   return ((C >= '0' && C <= '9') ? C - '0' :
     
208.     ((C >= 'A' && C <= 'F') ? C - 'A' + 10 :
     
209.      ((C >= 'a' && C <= 'f') ? C - 'a' + 10 : 0)));
     
210. }

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hechengjin

http://www.firemail.wang/forum.p ... hlight=%B9%A4%BE%DF
先用函数base64_encode() — 使用 MIME base64 对数据进行编码
　　标题字符串前加编码类型例如： =?UTF-8?B?
　　标题字符串后加：?=

　　例如：

　　$subject = "=?UTF-8?B?".base64_encode($subject)."?=";

　　将上面一句添加到代码之中，这样，发送的中文邮件标题就不是乱码了。

hechengjin

(https://www.rfc-editor.org/rfc/pdfrfc/rfc1342.txt.pdf)

1. for (let key in rowHeaderData) {
   
2.       let headers = []
   
3.       for (let header of rowHeaderData[key]) {
   
4.         let headerItem = {
   
5.           headerName: header.headerName
   
6.         }
   
7.         // RFC 1342 - Representation of Non-ASCII Text in Internet Message Headers
   
8.         // (https://www.rfc-editor.org/rfc/pdfrfc/rfc1342.txt.pdf)
   
9.         // subject may be an encoded word with format: "=?charset?encoding?encodedText?="
   
10.         // if subject is not a encoded word, do not decode it.
    
11.         if (header.headerName.toLowerCase() === 'subject' &&
    
12.             header.headerValue.match(EncodingTextRegx) === null) {
    
13.           headerItem.headerValue = header.headerValue
    
14.         } else {
    
15.           headerItem.headerValue = this.decodeMimeHeaderValue(header.headerValue)
    
16.         }
    
17.         headers.push(headerItem)
    
18.       }
    
19.       currentHeaderData[key] = headers
    
20.     }

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