indent -kr -i8 -brf -bbb -fnc -l132 -nce on all of webcit-classic
[citadel.git] / webcit / messages.h
index 0738e947e39ff3ba1e80f4641c792853a52c6a96..fa5fff29fa389734e273507b277042fb92bc0b64 100644 (file)
@@ -1,5 +1,6 @@
+
 /*
- * Copyright (c) 1996-2013 by the citadel.org team
+ * Copyright (c) 1996-2020 by the citadel.org team
  *
  * This program is open source software.  You can redistribute it and/or
  * modify it under the terms of the GNU General Public License, version 3.
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  * GNU General Public License for more details.
  */
+#ifndef MESSAGES_H
+#define MESSAGES_H
 
 extern CtxType CTX_MAILSUM;
 extern CtxType CTX_MIME_ATACH;
-extern HashList *MsgHeaderHandler;
 extern HashList *MimeRenderHandler;
 extern HashList *ReadLoopHandler;
 typedef struct wc_mime_attachment wc_mime_attachment;
-typedef void (*RenderMimeFunc)(StrBuf *Target, WCTemplputParams *TP, StrBuf *FoundCharset);
+typedef void (*RenderMimeFunc)(StrBuf * Target, WCTemplputParams * TP, StrBuf * FoundCharset);
 typedef struct _RenderMimeFuncStruct {
        RenderMimeFunc f;
 } RenderMimeFuncStruct;
@@ -41,65 +43,95 @@ void DestroyMime(void *vMime);
 #define MSGFLAG_READ (1<<0)
 
 typedef struct _message_summary {
-       long msgnum;            /* the message number on the citadel server */
+       long msgnum;            // the message number on the citadel server
        int Flags;
-
-       time_t date;            /* its creation date */
+       time_t date;            // its creation date
        int nhdr;
        int format_type;
        StrBuf *euid;
-       StrBuf *from;           /* the author */
-       StrBuf *to;             /* the recipient */
-       StrBuf *subj;           /* the title / subject */
+       StrBuf *from;           // display name of message author
+       StrBuf *to;             // the recipient
+       StrBuf *subj;           // title / subject
        StrBuf *reply_inreplyto;
+       long reply_inreplyto_hash;
        StrBuf *reply_references;
+       long reply_references_hash;
        StrBuf *ReplyTo;
        StrBuf *cccc;
-       StrBuf *hnod;
        StrBuf *AllRcpt;
        StrBuf *Room;
-       StrBuf *Rfca;
+       StrBuf *Rfca;           // UPN or email address of message author
        StrBuf *EnvTo;
-       StrBuf *OtherNode;
        const StrBuf *PartNum;
-
-       HashList *Attachments;  /* list of attachments */
+       HashList *Attachments;  // list of attachments
        HashList *Submessages;
        HashList *AttachLinks;
-
        HashList *AllAttach;
-
        int hasattachments;
-
-
-       /* The mime part of the message */
-       wc_mime_attachment *MsgBody;
+       int is_local;           // nonzero if the message originated on the local system
+       wc_mime_attachment *MsgBody;    // the MIME part of the message
 } message_summary;
-void DestroyMessageSummary(void *vMsg);
 
+void DestroyMessageSummary(void *vMsg);
 
+/* some of these fields map to msgkeys[] in msgbase.c ... others don't */
 
-static inline message_summary* GetMessagePtrAt(int n, HashList *Summ)
-{
+/* I think these are supposed to align with fieldMnemonics in msg_renderers.c
+ * So if you change one you have to change the other.
+ * TODO: figure out who did this and beat them with a wet noodle.
+ */
+typedef enum _eMessageField {
+       eAuthor,
+       eXclusivID,
+       erFc822Addr,
+       emessageId,
+       eJournal,
+       eReplyTo,
+       eListID,
+       eMesageText,
+       eIsLocal,
+       eMessagePath,
+       eRecipient,
+       eSpecialField,
+       eTimestamp,
+       eMsgSubject,
+       eenVelopeTo,
+       eWeferences,
+       eCarbonCopY,
+       eHeaderOnly,
+       eFormatType,
+       eMessagePart,
+       eSubFolder,
+       eLastHeader
+} eMessageField;
+
+extern const char *fieldMnemonics[];
+
+int GetFieldFromMnemonic(eMessageField * f, const char *c);
+int EvaluateMsgHdr(const char *HeaderName, long HdrNLen, message_summary * Msg, StrBuf * HdrLine, StrBuf * FoundCharset);
+int EvaluateMsgHdrEnum(eMessageField f, message_summary * Msg, StrBuf * HdrLine, StrBuf * FoundCharset);
+
+
+static inline message_summary *GetMessagePtrAt(int n, HashList * Summ) {
        const char *Key;
        long HKLen;
        void *vMsg;
 
-       if (Summ == NULL)
+       if (Summ == NULL) {
                return NULL;
+       }
        GetHashAt(Summ, n, &HKLen, &Key, &vMsg);
-       return (message_summary*) vMsg;
+       return (message_summary *) vMsg;
 }
 
-typedef void (*ExamineMsgHeaderFunc)(message_summary *Msg, StrBuf *HdrLine, StrBuf *FoundCharset);
-
-void evaluate_mime_part(StrBuf *Target, WCTemplputParams *TP);
 
+typedef void (*ExamineMsgHeaderFunc)(message_summary * Msg, StrBuf * HdrLine, StrBuf * FoundCharset);
+void evaluate_mime_part(StrBuf * Target, WCTemplputParams * TP);
 
 typedef enum _eCustomRoomRenderer {
-       eUseDefault = VIEW_JOURNAL + 100, 
+       eUseDefault = VIEW_JOURNAL + 100,
        eReadEUIDS
-}eCustomRoomRenderer;
+} eCustomRoomRenderer;
 
 enum {
        do_search,
@@ -116,12 +148,11 @@ enum {
  * @param Line the raw line with your message data
  * @param Msg put your parser results here...
  * @param ConversionBuffer if you need some workbuffer, don't free me!
+ * @param ViewSpecific your view specific context data
  * @returns 0: failure, trash this message. 1: all right, store it
  */
-typedef int (*load_msg_ptrs_detailheaders) (StrBuf *Line, 
-                                           const char **pos, 
-                                           message_summary *Msg, 
-                                           StrBuf *ConversionBuffer);
+typedef int (*load_msg_ptrs_detailheaders)(StrBuf * Line,
+                                          const char **pos, message_summary * Msg, StrBuf * ConversionBuffer, void **ViewSpecific);
 
 typedef void (*readloop_servcmd)(char *buf, long bufsize);
 
@@ -133,66 +164,55 @@ typedef struct _readloopstruct {
 extern readloop_struct rlid[];
 
 void readloop(long oper, eCustomRoomRenderer ForceRenderer);
-int read_message(StrBuf *Target, 
-                const char *tmpl, long tmpllen, 
-                long msgnum, 
-                const StrBuf *section, 
-                const StrBuf **OutMime);
-int load_message(message_summary *Msg, 
-                StrBuf *FoundCharset,
-                StrBuf **Error);
+int read_message(StrBuf * Target,
+                const char *tmpl, long tmpllen,
+                long msgnum, const StrBuf * section, const StrBuf ** OutMime, WCTemplputParams * TP);
+int load_message(message_summary * Msg, StrBuf * FoundCharset, StrBuf ** Error);
 
 
 
 
 typedef struct _SharedMessageStatus {
-       long load_seen;        /* should read information be loaded */
-       long sortit;           /* should we sort it using the standard sort API? */
-       long defaultsortorder; /* if we should sort it, which direction should be the default? */
+       long load_seen;         /* should read information be loaded */
+       long sortit;            /* should we sort it using the standard sort API? */
+       long defaultsortorder;  /* if we should sort it, which direction should be the default? */
 
-       long maxload;          /* how many headers should we accept from the server? defaults to 10k */
-       long maxmsgs;          /* how many message bodies do you want to load at most?*/
+       long maxload;           /* how many headers should we accept from the server? defaults to 10k */
+       long maxmsgs;           /* how many message bodies do you want to load at most? */
 
-       long startmsg;         /* which is the start message? */
-       long nummsgs;          /* How many messages are available to your view? */
-       long num_displayed;    /* counted up for LoadMsgFromServer */ /* TODO: unclear who should access this and why */
+       long startmsg;          /* which is the start message? */
+       long nummsgs;           /* How many messages are available to your view? */
+       long numNewmsgs;        /* if you load the seen-status, this is the count of them. */
+       long num_displayed;     /* counted up for LoadMsgFromServer *//* TODO: unclear who should access this and why */
 
-       long lowest_found;     /* smallest Message ID found;  */
-       long highest_found;    /* highest Message ID found;  */
+       long lowest_found;      /* smallest Message ID found;  */
+       long highest_found;     /* highest Message ID found;  */
 
 } SharedMessageStatus;
 
 int load_msg_ptrs(const char *servcmd,
                  const char *filter,
-                 SharedMessageStatus *Stat, 
-                 load_msg_ptrs_detailheaders LH);
-
-typedef int (*GetParamsGetServerCall_func)(SharedMessageStatus *Stat, 
-                                          void **ViewSpecific, 
-                                          long oper, 
-                                          char *cmd, 
-                                          long len,
-                                          char *filter,
-                                          long flen);
-
-typedef int (*PrintViewHeader_func)(SharedMessageStatus *Stat, void **ViewSpecific);
-
-typedef int (*LoadMsgFromServer_func)(SharedMessageStatus *Stat, 
-                                     void **ViewSpecific, 
-                                     message_summary* Msg, 
-                                     int is_new, 
-                                     int i);
-
-typedef int (*RenderView_or_Tail_func)(SharedMessageStatus *Stat, 
-                                      void **ViewSpecific, 
-                                      long oper);
+                 StrBuf * FoundCharset,
+                 SharedMessageStatus * Stat,
+                 void **ViewSpecific,
+                 load_msg_ptrs_detailheaders LH, StrBuf * FetchMessageList, eMessageField * MessageFieldList, long HeaderCount);
+
+typedef int (*GetParamsGetServerCall_func)(SharedMessageStatus * Stat,
+                                          void **ViewSpecific, long oper, char *cmd, long len, char *filter, long flen);
+
+typedef int (*PrintViewHeader_func)(SharedMessageStatus * Stat, void **ViewSpecific);
+
+typedef int (*LoadMsgFromServer_func)(SharedMessageStatus * Stat, void **ViewSpecific, message_summary * Msg, int is_new, int i);
+
+typedef int (*RenderView_or_Tail_func)(SharedMessageStatus * Stat, void **ViewSpecific, long oper);
 typedef int (*View_Cleanup_func)(void **ViewSpecific);
 
 void RegisterReadLoopHandlerset(
+
        /**
         * RoomType: which View definition are you going to be called for
         */
-       int RoomType,
+                                      int RoomType,
 
        /**
         * GetParamsGetServerCall should do the following:
@@ -204,27 +224,27 @@ void RegisterReadLoopHandlerset(
         *      is skipped.
         *  * influence the behaviour by presetting values on SharedMessageStatus
         */
-       GetParamsGetServerCall_func GetParamsGetServerCall,
+                                      GetParamsGetServerCall_func GetParamsGetServerCall,
 
        /**
         * PrintpageHeader prints the surrounding information like iconbar, header etc.
         * by default, output_headers() is called.
         *
         */
-       PrintViewHeader_func PrintPageHeader,
+                                      PrintViewHeader_func PrintPageHeader,
 
        /**
         * PrintViewHeader is here to print informations infront of your messages.
         * The message list is already loaded & sorted (if) so you can evaluate 
         * its result on the SharedMessageStatus struct.
         */
-       PrintViewHeader_func PrintViewHeader,
+                                      PrintViewHeader_func PrintViewHeader,
 
        /**
         * LH is the function, you specify if you want to load more than just message
         * numbers from the server during the listing fetch operation.
         */
-       load_msg_ptrs_detailheaders LH,
+                                      load_msg_ptrs_detailheaders LH,
 
        /**
         * LoadMsgFromServer is called for every message in the message list:
@@ -235,7 +255,7 @@ void RegisterReadLoopHandlerset(
         *  * depending on your needs you might want to print your message here...
         *  * if cmd was empty, its skipped alltogether.
         */
-       LoadMsgFromServer_func LoadMsgFromServer,
+                                      LoadMsgFromServer_func LoadMsgFromServer,
 
        /**
         * RenderView_or_Tail is called last; 
@@ -243,15 +263,21 @@ void RegisterReadLoopHandlerset(
         *    trailing information here
         *  * if you just pre-loaded your messages, put your render code here.
         */
-       RenderView_or_Tail_func RenderView_or_Tail,
+                                      RenderView_or_Tail_func RenderView_or_Tail,
 
        /**
         * ViewCleanup should just clear your private data so all your mem can go back to 
         * VALgrindHALLA.
         * it also should release the content for delivery via end_burst() or wDumpContent(1);
         */
-       View_Cleanup_func ViewCleanup
-       );
+                                      View_Cleanup_func ViewCleanup,
+
+       /**
+        * brofwseListFields schould be a NULL-terminated list of message field mnemonics
+        * that will be the browse vector for the message header list.
+        */
+                                      const char **browseListFields);
+
 /*
 GetParamsGetServerCall
 
@@ -263,12 +289,8 @@ RenderView_or_Tail
 */
 
 
-int ParseMessageListHeaders_Detail(StrBuf *Line, 
-                                  const char **pos, 
-                                  message_summary *Msg, 
-                                  StrBuf *ConversionBuffer);
-
-
+int ParseMessageListHeaders_Detail(StrBuf * Line,
+                                  const char **pos, message_summary * Msg, StrBuf * ConversionBuffer, void **ViewSpecific);
 
 /**
  * @brief function to register the availability to render a specific message
@@ -277,7 +299,15 @@ int ParseMessageListHeaders_Detail(StrBuf *Line,
  * @param InlineRenderable Should we announce to citserver that we want to receive these mimeparts immediately?
  * @param Priority if multipart/alternative; which mimepart/Renderer should be prefered? (only applies if InlineRenderable)
  */
-void RegisterMimeRenderer(const char *HeaderName, long HdrNLen, 
-                         RenderMimeFunc MimeRenderer,
-                         int InlineRenderable,
-                         int Priority);
+void RegisterMimeRenderer(const char *HeaderName, long HdrNLen, RenderMimeFunc MimeRenderer, int InlineRenderable, int Priority);
+
+
+/**
+ * @brief fill the header parts of Msg with the headers loaded by MSG0
+ * @param Msg empty message struct, only preinitialized with the msgid
+ * @param FoundCharset buffer with the prefered charset of the headers
+ * @param buf linebuffer used to buffer citserver replies
+ */
+int ReadOneMessageSummary(message_summary * Msg, StrBuf * FoundCharset, StrBuf * Buf);
+
+#endif