Integrated the DKIM signer into serv_smtpclient, but disabled it
[citadel.git] / webcit / messages.h
index e004bd051999932540ac9abffd682a4c2f1e1407..41ab5b3d347a7c8ea5a2b819257e99119bf2f309 100644 (file)
@@ -1,9 +1,23 @@
+/*
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+#ifndef MESSAGES_H
+#define MESSAGES_H
 
-extern HashList *MsgHeaderHandler;
+extern CtxType CTX_MAILSUM;
+extern CtxType CTX_MIME_ATACH;
 extern HashList *MimeRenderHandler;
-
+extern HashList *ReadLoopHandler;
 typedef struct wc_mime_attachment wc_mime_attachment;
-typedef void (*RenderMimeFunc)(wc_mime_attachment *Mime, StrBuf *RawData, StrBuf *FoundCharset);
+typedef void (*RenderMimeFunc)(StrBuf *Target, WCTemplputParams *TP, StrBuf *FoundCharset);
 typedef struct _RenderMimeFuncStruct {
        RenderMimeFunc f;
 } RenderMimeFuncStruct;
@@ -17,56 +31,106 @@ struct wc_mime_attachment {
        StrBuf *ContentType;
        StrBuf *Charset;
        StrBuf *Data;
-       size_t length;                     /* length of the mimeattachment */
+       size_t length;          /* length of the mimeattachment */
        long size_known;
-       long lvalue;               /* if we put a long... */
-       long msgnum;            /**< the message number on the citadel server derived from message_summary */
+       long lvalue;            /* if we put a long... */
+       long msgnum;            /* the message number on the citadel server derived from message_summary */
        const RenderMimeFuncStruct *Renderer;
 };
 void DestroyMime(void *vMime);
 
+#define MSGFLAG_READ (1<<0)
 
-/*
- * \brief message summary structure. ???
- */
 typedef struct _message_summary {
-       time_t date;        /**< its creation date */
-       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
        int nhdr;
        int format_type;
-       StrBuf *from;           /**< the author */
-       StrBuf *to;             /**< the recipient */
-       StrBuf *subj;           /**< the title / subject */
+       StrBuf *euid;
+       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;
-       StrBuf *reply_to;
+       long reply_references_hash;
+       StrBuf *ReplyTo;
        StrBuf *cccc;
-       StrBuf *hnod;
        StrBuf *AllRcpt;
        StrBuf *Room;
-       StrBuf *Rfca;
-       StrBuf *OtherNode;
+       StrBuf *Rfca;                           // UPN or email address of message author
+       StrBuf *EnvTo;
        const StrBuf *PartNum;
-
-       HashList *Attachments;  /**< list of Attachments */
+       HashList *Attachments;                  // list of attachments
        HashList *Submessages;
        HashList *AttachLinks;
-
        HashList *AllAttach;
+       int hasattachments;
+       int is_local;                           // nonzero if the message originated on the local system
+       wc_mime_attachment *MsgBody;            // the MIME part of the message
+} message_summary;
 
-       int is_new;         /**< is it yet read? */
-       int hasattachments;     /* does it have attachments? */
+void DestroyMessageSummary(void *vMsg);
 
+/* some of these fields map to msgkeys[] in msgbase.c ... others don't */
+
+/* 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,
+       eMessageText,
+       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) {
+               return NULL;
+       }
+       GetHashAt(Summ, n, &HKLen, &Key, &vMsg);
+       return (message_summary*) vMsg;
+}
 
-       /** The mime part of the message */
-       wc_mime_attachment *MsgBody;
-} message_summary;
-void DestroyMessageSummary(void *vMsg);
-inline message_summary* GetMessagePtrAt(int n, HashList *Summ);
 
 typedef void (*ExamineMsgHeaderFunc)(message_summary *Msg, StrBuf *HdrLine, StrBuf *FoundCharset);
+void evaluate_mime_part(StrBuf *Target, WCTemplputParams *TP);
 
-void evaluate_mime_part(message_summary *Msg, wc_mime_attachment *Mime);
+typedef enum _eCustomRoomRenderer {
+       eUseDefault = VIEW_JOURNAL + 100, 
+       eReadEUIDS
+} eCustomRoomRenderer;
 
 enum {
        do_search,
@@ -74,9 +138,24 @@ enum {
        readfwd,
        readnew,
        readold,
-       readgt
+       readgt,
+       readlt
 };
 
+/**
+ * @brief function to parse the | separated message headers list
+ * @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,
+                                           void **ViewSpecific);
+
 typedef void (*readloop_servcmd)(char *buf, long bufsize);
 
 typedef struct _readloopstruct {
@@ -84,16 +163,176 @@ typedef struct _readloopstruct {
        readloop_servcmd cmd;
 } readloop_struct;
 
+extern readloop_struct rlid[];
 
-void readloop(long oper);
+void readloop(long oper, eCustomRoomRenderer ForceRenderer);
 int read_message(StrBuf *Target, 
                 const char *tmpl, long tmpllen, 
                 long msgnum, 
                 const StrBuf *section, 
-                const StrBuf **OutMime);
+                const StrBuf **OutMime,
+                WCTemplputParams *TP);
 int load_message(message_summary *Msg, 
                 StrBuf *FoundCharset,
                 StrBuf **Error);
 
 
-int load_msg_ptrs(const char *servcmd, int with_headers);
+
+
+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 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 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;  */
+
+} SharedMessageStatus;
+
+int load_msg_ptrs(const char *servcmd,
+                 const char *filter,
+                 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,
+
+       /**
+        * GetParamsGetServerCall should do the following:
+        *  * allocate your private context structure
+        *  * evaluate your commandline arguments, put results to your private struct.
+        *  * fill cmd with the command to load the message pointer list:
+        *    * might depend on bstr/oper depending on your needs
+        *    * might stay empty if no list should loaded and LoadMsgFromServer 
+        *      is skipped.
+        *  * influence the behaviour by presetting values on SharedMessageStatus
+        */
+       GetParamsGetServerCall_func GetParamsGetServerCall,
+
+       /**
+        * PrintpageHeader prints the surrounding information like iconbar, header etc.
+        * by default, output_headers() is called.
+        *
+        */
+       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,
+
+       /**
+        * 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,
+
+       /**
+        * LoadMsgFromServer is called for every message in the message list:
+        *  * which is 
+        *    * after 'startmsg'  
+        *    * up to 'maxmsgs' after your 'startmsg'
+        *  * it should load and parse messages from citserer.
+        *  * depending on your needs you might want to print your message here...
+        *  * if cmd was empty, its skipped alltogether.
+        */
+       LoadMsgFromServer_func LoadMsgFromServer,
+
+       /**
+        * RenderView_or_Tail is called last; 
+        *  * if you used PrintViewHeader to print messages, you might want to print 
+        *    trailing information here
+        *  * if you just pre-loaded your messages, put your render code here.
+        */
+       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,
+       /**
+        * 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
+
+PrintViewHeader
+
+LoadMsgFromServer
+
+RenderView_or_Tail
+*/
+
+
+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
+ * @param HeaderName Mimetype we know howto display
+ * @param HdrNLen length...
+ * @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);
+
+
+/**
+ * @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