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chatmail-core/deltachat-ffi/deltachat.h
dignifiedquire 8a49ae2361 refactor: save lot implementation and follow up refactors 
rewrote qr code to match the now safe lot
2019-08-18 13:58:07 +02:00

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#ifndef __DELTACHAT_H__
#define __DELTACHAT_H__
#ifdef __cplusplus
extern "C" {
#endif
#ifndef PY_CFFI
#include <stdint.h>
#include <time.h>
#endif
/**
* @mainpage Getting started
*
* This document describes how to handle the Delta Chat core library.
* For general information about Delta Chat itself,
* see <https://delta.chat> and <https://github.com/deltachat>.
*
* Let's start.
*
* First of all, you have to **define an event-handler-function**
* that is called by the library on specific events
* (eg. when the configuration is done or when fresh messages arrive).
* With this function you can create a Delta Chat context then:
*
* ~~~
* #include <deltachat.h>
*
* uintptr_t event_handler_func(dc_context_t* context, int event,
* uintptr_t data1, uintptr_t data2)
* {
* return 0; // for unhandled events, it is always safe to return 0
* }
*
* dc_context_t* context = dc_context_new(event_handler_func, NULL, NULL);
* ~~~
*
* After that, you should make sure,
* sending and receiving jobs are processed as needed.
* For this purpose, you have to **create two threads:**
*
* ~~~
* #include <pthread.h>
*
* void* imap_thread_func(void* context)
* {
* while (true) {
* dc_perform_imap_jobs(context);
* dc_perform_imap_fetch(context);
* dc_perform_imap_idle(context);
* }
* }
*
* void* smtp_thread_func(void* context)
* {
* while (true) {
* dc_perform_smtp_jobs(context);
* dc_perform_smtp_idle(context);
* }
* }
*
* static pthread_t imap_thread, smtp_thread;
* pthread_create(&imap_thread, NULL, imap_thread_func, context);
* pthread_create(&smtp_thread, NULL, smtp_thread_func, context);
* ~~~
*
* The example above uses "pthreads",
* however, you can also use anything else for thread handling.
* NB: The deltachat-core library itself does not create any threads on its own,
* however, functions, unless stated otherwise, are thread-safe.
*
* After that you can **define and open a database.**
* The database is a normal sqlite-file and is created as needed:
*
* ~~~
* dc_open(context, "example.db", NULL);
* ~~~
*
* Now you can **configure the context:**
*
* ~~~
* // use some real test credentials here
* dc_set_config(context, "addr", "alice@example.org");
* dc_set_config(context, "mail_pw", "***");
* dc_configure(context);
* ~~~
*
* dc_configure() returns immediately, the configuration itself may take a while
* and is done by a job in the imap-thread you've defined above.
* Once done, the #DC_EVENT_CONFIGURE_PROGRESS reports success
* to the event_handler_func() that is also defined above.
*
* The configuration result is saved in the database,
* on subsequent starts it is not needed to call dc_configure()
* (you can check this using dc_is_configured()).
*
* Now you can **send the first message:**
*
* ~~~
* // use a real testing address here
* uint32_t contact_id = dc_create_contact(context, NULL, "bob@example.org");
* uint32_t chat_id = dc_create_chat_by_contact_id(context, contact_id);
*
* dc_send_text_msg(context, chat_id, "Hi, here is my first message!");
* ~~~
*
* dc_send_text_msg() returns immediately;
* the sending itself is done by a job in the smtp-thread you've defined above.
* If you check the testing address (bob)
* and you should have received a normal email.
* Answer this email in any email program with "Got it!"
* and the imap-thread you've create above will **receive the message**.
*
* You can then **list all messages** of a chat as follow:
*
* ~~~
* dc_array_t* msglist = dc_get_chat_msgs(context, chat_id, 0, 0);
* for (int i = 0; i < dc_array_get_cnt(msglist); i++)
* {
* uint32_t msg_id = dc_array_get_id(msglist, i);
* dc_msg_t* msg = dc_get_msg(context, msg_id);
* char* text = dc_msg_get_text(msg);
*
* printf("Message %i: %s\n", i+1, text);
*
* free(text);
* dc_msg_unref(msg);
* }
* dc_array_unref(msglist);
* ~~~
*
* This will output the following two lines:
*
* ~~~
* Message 1: Hi, here is my first message!
* Message 2: Got it!
* ~~~
*
*
* ## Class reference
*
* For a class reference, see the "Classes" link atop.
*
*
* ## Further hints
*
* Here are some additional, unsorted hints that may be useful.
*
* - For `get`-functions, you have to unref the return value in some way.
*
* - Strings in function arguments or return values are usually UTF-8 encoded.
*
* - The issue-tracker for the core library is here:
* <https://github.com/deltachat/deltachat-core/issues>
*
* The following points are important mainly
* for the authors of the library itself:
*
* - For indentation, use tabs.
* Alignments that are not placed at the beginning of a line
* should be done with spaces.
*
* - For padding between functions,
* classes etc. use 2 empty lines
*
* - Source files are encoded as UTF-8 with Unix line endings
* (a simple `LF`, `0x0A` or `\n`)
*
* If you need further assistance,
* please do not hesitate to contact us
* through the channels shown at https://delta.chat/en/contribute
*
* Please keep in mind, that your derived work
* must respect the Mozilla Public License 2.0 of libdeltachat
* and the respective licenses of the libraries libdeltachat links with.
*
* See you.
*/
/**
* @class dc_context_t
*
* An object representing a single account.
*
* Each account is linked to an IMAP/SMTP account and uses a separate
* SQLite database for offline functionality and for account-related
* settings.
*/
typedef struct _dc_context dc_context_t;
typedef struct _dc_array dc_array_t;
typedef struct _dc_chatlist dc_chatlist_t;
typedef struct _dc_chat dc_chat_t;
typedef struct _dc_msg dc_msg_t;
typedef struct _dc_contact dc_contact_t;
typedef struct _dc_lot dc_lot_t;
/**
* Callback function that should be given to dc_context_new().
*
* @memberof dc_context_t
* @param context The context object as returned by dc_context_new().
* @param event one of the @ref DC_EVENT constants
* @param data1 depends on the event parameter
* @param data2 depends on the event parameter
* @return return 0 unless stated otherwise in the event parameter documentation
*/
typedef uintptr_t (*dc_callback_t) (dc_context_t*, int event, uintptr_t data1, uintptr_t data2);
// create/open/config/information
dc_context_t* dc_context_new (dc_callback_t, void* userdata, const char* os_name);
void dc_context_unref (dc_context_t*);
void* dc_get_userdata (dc_context_t*);
int dc_open (dc_context_t*, const char* dbfile, const char* blobdir);
void dc_close (dc_context_t*);
int dc_is_open (const dc_context_t*);
char* dc_get_blobdir (const dc_context_t*);
int dc_set_config (dc_context_t*, const char* key, const char* value);
char* dc_get_config (dc_context_t*, const char* key);
char* dc_get_info (dc_context_t*);
char* dc_get_oauth2_url (dc_context_t*, const char* addr, const char* redirect);
char* dc_get_version_str (void);
// connect
void dc_configure (dc_context_t*);
int dc_is_configured (const dc_context_t*);
void dc_perform_imap_jobs (dc_context_t*);
void dc_perform_imap_fetch (dc_context_t*);
void dc_perform_imap_idle (dc_context_t*);
void dc_interrupt_imap_idle (dc_context_t*);
void dc_perform_mvbox_fetch (dc_context_t*);
void dc_perform_mvbox_idle (dc_context_t*);
void dc_interrupt_mvbox_idle (dc_context_t*);
void dc_perform_sentbox_fetch (dc_context_t*);
void dc_perform_sentbox_idle (dc_context_t*);
void dc_interrupt_sentbox_idle (dc_context_t*);
void dc_perform_smtp_jobs (dc_context_t*);
void dc_perform_smtp_idle (dc_context_t*);
void dc_interrupt_smtp_idle (dc_context_t*);
void dc_maybe_network (dc_context_t*);
// handle chatlists
#define DC_GCL_ARCHIVED_ONLY 0x01
#define DC_GCL_NO_SPECIALS 0x02
#define DC_GCL_ADD_ALLDONE_HINT 0x04
dc_chatlist_t* dc_get_chatlist (dc_context_t*, int flags, const char* query_str, uint32_t query_id);
// handle chats
uint32_t dc_create_chat_by_msg_id (dc_context_t*, uint32_t msg_id);
uint32_t dc_create_chat_by_contact_id (dc_context_t*, uint32_t contact_id);
uint32_t dc_get_chat_id_by_contact_id (dc_context_t*, uint32_t contact_id);
uint32_t dc_prepare_msg (dc_context_t*, uint32_t chat_id, dc_msg_t*);
uint32_t dc_send_msg (dc_context_t*, uint32_t chat_id, dc_msg_t*);
uint32_t dc_send_text_msg (dc_context_t*, uint32_t chat_id, const char* text_to_send);
void dc_set_draft (dc_context_t*, uint32_t chat_id, dc_msg_t*);
dc_msg_t* dc_get_draft (dc_context_t*, uint32_t chat_id);
#define DC_GCM_ADDDAYMARKER 0x01
dc_array_t* dc_get_chat_msgs (dc_context_t*, uint32_t chat_id, uint32_t flags, uint32_t marker1before);
int dc_get_msg_cnt (dc_context_t*, uint32_t chat_id);
int dc_get_fresh_msg_cnt (dc_context_t*, uint32_t chat_id);
dc_array_t* dc_get_fresh_msgs (dc_context_t*);
void dc_marknoticed_chat (dc_context_t*, uint32_t chat_id);
void dc_marknoticed_all_chats (dc_context_t*);
dc_array_t* dc_get_chat_media (dc_context_t*, uint32_t chat_id, int msg_type, int or_msg_type2, int or_msg_type3);
uint32_t dc_get_next_media (dc_context_t*, uint32_t msg_id, int dir, int msg_type, int or_msg_type2, int or_msg_type3);
void dc_archive_chat (dc_context_t*, uint32_t chat_id, int archive);
void dc_delete_chat (dc_context_t*, uint32_t chat_id);
dc_array_t* dc_get_chat_contacts (dc_context_t*, uint32_t chat_id);
dc_array_t* dc_search_msgs (dc_context_t*, uint32_t chat_id, const char* query);
dc_chat_t* dc_get_chat (dc_context_t*, uint32_t chat_id);
// handle group chats
uint32_t dc_create_group_chat (dc_context_t*, int verified, const char* name);
int dc_is_contact_in_chat (dc_context_t*, uint32_t chat_id, uint32_t contact_id);
int dc_add_contact_to_chat (dc_context_t*, uint32_t chat_id, uint32_t contact_id);
int dc_remove_contact_from_chat (dc_context_t*, uint32_t chat_id, uint32_t contact_id);
int dc_set_chat_name (dc_context_t*, uint32_t chat_id, const char* name);
int dc_set_chat_profile_image (dc_context_t*, uint32_t chat_id, const char* image);
// handle messages
char* dc_get_msg_info (dc_context_t*, uint32_t msg_id);
char* dc_get_mime_headers (dc_context_t*, uint32_t msg_id);
void dc_delete_msgs (dc_context_t*, const uint32_t* msg_ids, int msg_cnt);
void dc_forward_msgs (dc_context_t*, const uint32_t* msg_ids, int msg_cnt, uint32_t chat_id);
void dc_marknoticed_contact (dc_context_t*, uint32_t contact_id);
void dc_markseen_msgs (dc_context_t*, const uint32_t* msg_ids, int msg_cnt);
void dc_star_msgs (dc_context_t*, const uint32_t* msg_ids, int msg_cnt, int star);
dc_msg_t* dc_get_msg (dc_context_t*, uint32_t msg_id);
// handle contacts
int dc_may_be_valid_addr (const char* addr);
uint32_t dc_lookup_contact_id_by_addr (dc_context_t*, const char* addr);
uint32_t dc_create_contact (dc_context_t*, const char* name, const char* addr);
int dc_add_address_book (dc_context_t*, const char*);
#define DC_GCL_VERIFIED_ONLY 0x01
#define DC_GCL_ADD_SELF 0x02
dc_array_t* dc_get_contacts (dc_context_t*, uint32_t flags, const char* query);
int dc_get_blocked_cnt (dc_context_t*);
dc_array_t* dc_get_blocked_contacts (dc_context_t*);
void dc_block_contact (dc_context_t*, uint32_t contact_id, int block);
char* dc_get_contact_encrinfo (dc_context_t*, uint32_t contact_id);
int dc_delete_contact (dc_context_t*, uint32_t contact_id);
dc_contact_t* dc_get_contact (dc_context_t*, uint32_t contact_id);
// import/export and tools
#define DC_IMEX_EXPORT_SELF_KEYS 1 // param1 is a directory where the keys are written to
#define DC_IMEX_IMPORT_SELF_KEYS 2 // param1 is a directory where the keys are searched in and read from
#define DC_IMEX_EXPORT_BACKUP 11 // param1 is a directory where the backup is written to
#define DC_IMEX_IMPORT_BACKUP 12 // param1 is the file with the backup to import
void dc_imex (dc_context_t*, int what, const char* param1, const char* param2);
char* dc_imex_has_backup (dc_context_t*, const char* dir);
char* dc_initiate_key_transfer (dc_context_t*);
int dc_continue_key_transfer (dc_context_t*, uint32_t msg_id, const char* setup_code);
void dc_stop_ongoing_process (dc_context_t*);
// out-of-band verification
#define DC_QR_ASK_VERIFYCONTACT 200 // id=contact
#define DC_QR_ASK_VERIFYGROUP 202 // text1=groupname
#define DC_QR_FPR_OK 210 // id=contact
#define DC_QR_FPR_MISMATCH 220 // id=contact
#define DC_QR_FPR_WITHOUT_ADDR 230 // test1=formatted fingerprint
#define DC_QR_ADDR 320 // id=contact
#define DC_QR_TEXT 330 // text1=text
#define DC_QR_URL 332 // text1=URL
#define DC_QR_ERROR 400 // text1=error string
dc_lot_t* dc_check_qr (dc_context_t*, const char* qr);
char* dc_get_securejoin_qr (dc_context_t*, uint32_t chat_id);
uint32_t dc_join_securejoin (dc_context_t*, const char* qr);
// location streaming
void dc_send_locations_to_chat (dc_context_t*, uint32_t chat_id, int seconds);
int dc_is_sending_locations_to_chat (dc_context_t*, uint32_t chat_id);
int dc_set_location (dc_context_t*, double latitude, double longitude, double accuracy);
dc_array_t* dc_get_locations (dc_context_t*, uint32_t chat_id, uint32_t contact_id, int64_t timestamp_begin, int64_t timestamp_end);
void dc_delete_all_locations (dc_context_t*);
/**
* @class dc_array_t
*
* An object containing a simple array.
* This object is used in several places where functions need to return an array.
* The items of the array are typically IDs.
* To free an array object, use dc_array_unref().
*/
void dc_array_unref (dc_array_t*);
void dc_array_add_id (dc_array_t*, uint32_t);
size_t dc_array_get_cnt (const dc_array_t*);
uint32_t dc_array_get_id (const dc_array_t*, size_t index);
double dc_array_get_latitude (const dc_array_t*, size_t index);
double dc_array_get_longitude (const dc_array_t*, size_t index);
double dc_array_get_accuracy (const dc_array_t*, size_t index);
int64_t dc_array_get_timestamp (const dc_array_t*, size_t index);
uint32_t dc_array_get_chat_id (const dc_array_t*, size_t index);
uint32_t dc_array_get_contact_id (const dc_array_t*, size_t index);
uint32_t dc_array_get_msg_id (const dc_array_t*, size_t index);
char* dc_array_get_marker (const dc_array_t*, size_t index);
int dc_array_is_independent (const dc_array_t*, size_t index);
int dc_array_search_id (const dc_array_t*, uint32_t needle, size_t* indx);
const uint32_t* dc_array_get_raw (const dc_array_t*);
/**
* @class dc_chatlist_t
*
* An object representing a single chatlist in memory.
* Chatlist objects contain chat IDs
* and, if possible, message IDs belonging to them.
* The chatlist object is not updated;
* if you want an update, you have to recreate the object.
*
* For a **typical chat overview**,
* the idea is to get the list of all chats via dc_get_chatlist()
* without any listflags (see below)
* and to implement a "virtual list" or so
* (the count of chats is known by dc_chatlist_get_cnt()).
*
* Only for the items that are in view
* (the list may have several hundreds chats),
* the UI should call dc_chatlist_get_summary() then.
* dc_chatlist_get_summary() provides all elements needed for painting the item.
*
* On a click of such an item,
* the UI should change to the chat view
* and get all messages from this view via dc_get_chat_msgs().
* Again, a "virtual list" is created
* (the count of messages is known)
* and for each messages that is scrolled into view, dc_get_msg() is called then.
*
* Why no listflags?
* Without listflags, dc_get_chatlist() adds the deaddrop
* and the archive "link" automatically as needed.
* The UI can just render these items differently then.
* Although the deaddrop link is currently always the first entry
* and only present on new messages,
* there is the rough idea that it can be optionally always present
* and sorted into the list by date.
* Rendering the deaddrop in the described way
* would not add extra work in the UI then.
*/
// dc_chatlist_t* dc_chatlist_new (dc_context_t*);
void dc_chatlist_unref (dc_chatlist_t*);
size_t dc_chatlist_get_cnt (const dc_chatlist_t*);
uint32_t dc_chatlist_get_chat_id (const dc_chatlist_t*, size_t index);
uint32_t dc_chatlist_get_msg_id (const dc_chatlist_t*, size_t index);
dc_lot_t* dc_chatlist_get_summary (const dc_chatlist_t*, size_t index, dc_chat_t*);
dc_context_t* dc_chatlist_get_context (dc_chatlist_t*);
/**
* @class dc_chat_t
*
* An object representing a single chat in memory.
* Chat objects are created using eg. dc_get_chat()
* and are not updated on database changes;
* if you want an update, you have to recreate the object.
*/
#define DC_CHAT_ID_DEADDROP 1 // virtual chat showing all messages belonging to chats flagged with chats.blocked=2
#define DC_CHAT_ID_TRASH 3 // messages that should be deleted get this chat_id; the messages are deleted from the working thread later then. This is also needed as rfc724_mid should be preset as long as the message is not deleted on the server (otherwise it is downloaded again)
#define DC_CHAT_ID_MSGS_IN_CREATION 4 // a message is just in creation but not yet assigned to a chat (eg. we may need the message ID to set up blobs; this avoids unready message to be sent and shown)
#define DC_CHAT_ID_STARRED 5 // virtual chat showing all messages flagged with msgs.starred=2
#define DC_CHAT_ID_ARCHIVED_LINK 6 // only an indicator in a chatlist
#define DC_CHAT_ID_ALLDONE_HINT 7 // only an indicator in a chatlist
#define DC_CHAT_ID_LAST_SPECIAL 9 // larger chat IDs are "real" chats, their messages are "real" messages.
#define DC_CHAT_TYPE_UNDEFINED 0
#define DC_CHAT_TYPE_SINGLE 100
#define DC_CHAT_TYPE_GROUP 120
#define DC_CHAT_TYPE_VERIFIED_GROUP 130
void dc_chat_unref (dc_chat_t*);
uint32_t dc_chat_get_id (const dc_chat_t*);
int dc_chat_get_type (const dc_chat_t*);
char* dc_chat_get_name (const dc_chat_t*);
char* dc_chat_get_subtitle (const dc_chat_t*);
char* dc_chat_get_profile_image (const dc_chat_t*);
uint32_t dc_chat_get_color (const dc_chat_t*);
int dc_chat_get_archived (const dc_chat_t*);
int dc_chat_is_unpromoted (const dc_chat_t*);
int dc_chat_is_self_talk (const dc_chat_t*);
int dc_chat_is_verified (const dc_chat_t*);
int dc_chat_is_sending_locations (const dc_chat_t*);
/**
* @class dc_msg_t
*
* An object representing a single message in memory.
* The message object is not updated.
* If you want an update, you have to recreate the object.
*/
#define DC_MSG_ID_MARKER1 1
#define DC_MSG_ID_DAYMARKER 9
#define DC_MSG_ID_LAST_SPECIAL 9
#define DC_STATE_UNDEFINED 0
#define DC_STATE_IN_FRESH 10
#define DC_STATE_IN_NOTICED 13
#define DC_STATE_IN_SEEN 16
#define DC_STATE_OUT_PREPARING 18
#define DC_STATE_OUT_DRAFT 19
#define DC_STATE_OUT_PENDING 20
#define DC_STATE_OUT_FAILED 24
#define DC_STATE_OUT_DELIVERED 26 // to check if a mail was sent, use dc_msg_is_sent()
#define DC_STATE_OUT_MDN_RCVD 28
#define DC_MAX_GET_TEXT_LEN 30000 // approx. max. length returned by dc_msg_get_text()
#define DC_MAX_GET_INFO_LEN 100000 // approx. max. length returned by dc_get_msg_info()
dc_msg_t* dc_msg_new (dc_context_t*, int viewtype);
void dc_msg_unref (dc_msg_t*);
void dc_msg_empty (dc_msg_t*);
uint32_t dc_msg_get_id (const dc_msg_t*);
uint32_t dc_msg_get_from_id (const dc_msg_t*);
uint32_t dc_msg_get_chat_id (const dc_msg_t*);
int dc_msg_get_viewtype (const dc_msg_t*);
int dc_msg_get_state (const dc_msg_t*);
int64_t dc_msg_get_timestamp (const dc_msg_t*);
int64_t dc_msg_get_received_timestamp (const dc_msg_t*);
int64_t dc_msg_get_sort_timestamp (const dc_msg_t*);
char* dc_msg_get_text (const dc_msg_t*);
char* dc_msg_get_file (const dc_msg_t*);
char* dc_msg_get_filename (const dc_msg_t*);
char* dc_msg_get_filemime (const dc_msg_t*);
uint64_t dc_msg_get_filebytes (const dc_msg_t*);
int dc_msg_get_width (const dc_msg_t*);
int dc_msg_get_height (const dc_msg_t*);
int dc_msg_get_duration (const dc_msg_t*);
int dc_msg_get_showpadlock (const dc_msg_t*);
dc_lot_t* dc_msg_get_summary (const dc_msg_t*, const dc_chat_t*);
char* dc_msg_get_summarytext (const dc_msg_t*, int approx_characters);
int dc_msg_has_deviating_timestamp(const dc_msg_t*);
int dc_msg_has_location (const dc_msg_t*);
int dc_msg_is_sent (const dc_msg_t*);
int dc_msg_is_starred (const dc_msg_t*);
int dc_msg_is_forwarded (const dc_msg_t*);
int dc_msg_is_info (const dc_msg_t*);
int dc_msg_is_increation (const dc_msg_t*);
int dc_msg_is_setupmessage (const dc_msg_t*);
char* dc_msg_get_setupcodebegin (const dc_msg_t*);
void dc_msg_set_text (dc_msg_t*, const char* text);
void dc_msg_set_file (dc_msg_t*, const char* file, const char* filemime);
void dc_msg_set_dimension (dc_msg_t*, int width, int height);
void dc_msg_set_duration (dc_msg_t*, int duration);
void dc_msg_set_location (dc_msg_t*, double latitude, double longitude);
void dc_msg_latefiling_mediasize (dc_msg_t*, int width, int height, int duration);
/**
* @class dc_contact_t
*
* An object representing a single contact in memory.
* The contact object is not updated.
* If you want an update, you have to recreate the object.
*
* The library makes sure
* only to use names _authorized_ by the contact in `To:` or `Cc:`.
* _Given-names _as "Daddy" or "Honey" are not used there.
* For this purpose, internally, two names are tracked -
* authorized-name and given-name.
* By default, these names are equal,
* but functions working with contact names
* (eg. dc_contact_get_name(), dc_contact_get_display_name(),
* dc_contact_get_name_n_addr(), dc_contact_get_first_name(),
* dc_create_contact() or dc_add_address_book())
* only affect the given-name.
*/
#define DC_CONTACT_ID_SELF 1
#define DC_CONTACT_ID_DEVICE 2
#define DC_CONTACT_ID_LAST_SPECIAL 9
void dc_contact_unref (dc_contact_t*);
uint32_t dc_contact_get_id (const dc_contact_t*);
char* dc_contact_get_addr (const dc_contact_t*);
char* dc_contact_get_name (const dc_contact_t*);
char* dc_contact_get_display_name (const dc_contact_t*);
char* dc_contact_get_name_n_addr (const dc_contact_t*);
char* dc_contact_get_first_name (const dc_contact_t*);
char* dc_contact_get_profile_image (const dc_contact_t*);
uint32_t dc_contact_get_color (const dc_contact_t*);
int dc_contact_is_blocked (const dc_contact_t*);
int dc_contact_is_verified (dc_contact_t*);
/**
* @class dc_lot_t
*
* An object containing a set of values.
* The meaning of the values is defined by the function returning the object.
* Lot objects are created
* eg. by dc_chatlist_get_summary() or dc_msg_get_summary().
*
* NB: _Lot_ is used in the meaning _heap_ here.
*/
#define DC_TEXT1_DRAFT 1
#define DC_TEXT1_USERNAME 2
#define DC_TEXT1_SELF 3
void dc_lot_unref (dc_lot_t*);
char* dc_lot_get_text1 (const dc_lot_t*);
char* dc_lot_get_text2 (const dc_lot_t*);
int dc_lot_get_text1_meaning (const dc_lot_t*);
int dc_lot_get_state (const dc_lot_t*);
uint32_t dc_lot_get_id (const dc_lot_t*);
int64_t dc_lot_get_timestamp (const dc_lot_t*);
/**
* @defgroup DC_MSG DC_MSG
*
* With these constants the type of a message is defined.
*
* From the view of the library,
* all types are primary types of the same level,
* eg. the library does not regard #DC_MSG_GIF as a subtype for #DC_MSG_IMAGE
* and it's up to the UI to decide whether a GIF is shown
* eg. in an IMAGE or in a VIDEO container.
*
* If you want to define the type of a dc_msg_t object for sending,
* use dc_msg_new().
*
* To get the types of dc_msg_t objects received, use dc_msg_get_viewtype().
*
* @addtogroup DC_MSG
* @{
*/
/**
* Text message.
* The text of the message is set using dc_msg_set_text()
* and retrieved with dc_msg_get_text().
*/
#define DC_MSG_TEXT 10
/**
* Image message.
* If the image is an animated GIF, the type DC_MSG_GIF should be used.
* File, width and height are set via dc_msg_set_file(), dc_msg_set_dimension
* and retrieved via dc_msg_set_file(), dc_msg_set_dimension().
*/
#define DC_MSG_IMAGE 20
/**
* Animated GIF message.
* File, width and height are set via dc_msg_set_file(), dc_msg_set_dimension()
* and retrieved via dc_msg_get_file(), dc_msg_get_width(), dc_msg_get_height().
*/
#define DC_MSG_GIF 21
/**
* Message containing an Audio file.
* File and duration are set via dc_msg_set_file(), dc_msg_set_duration()
* and retrieved via dc_msg_get_file(), dc_msg_get_duration().
*/
#define DC_MSG_AUDIO 40
/**
* A voice message that was directly recorded by the user.
* For all other audio messages, the type #DC_MSG_AUDIO should be used.
* File and duration are set via dc_msg_set_file(), dc_msg_set_duration()
* and retrieved via dc_msg_get_file(), dc_msg_get_duration()
*/
#define DC_MSG_VOICE 41
/**
* Video messages.
* File, width, height and durarion
* are set via dc_msg_set_file(), dc_msg_set_dimension(), dc_msg_set_duration()
* and retrieved via
* dc_msg_get_file(), dc_msg_get_width(),
* dc_msg_get_height(), dc_msg_get_duration().
*/
#define DC_MSG_VIDEO 50
/**
* Message containing any file, eg. a PDF.
* The file is set via dc_msg_set_file()
* and retrieved via dc_msg_get_file().
*/
#define DC_MSG_FILE 60
/**
* @}
*/
/**
* @defgroup DC_LP DC_LP
*
* Flags for configuring IMAP and SMTP servers.
* These flags are optional
* and may be set together with the username, password etc.
* via dc_set_config() using the key "server_flags".
*
* @addtogroup DC_LP
* @{
*/
/**
* Force OAuth2 authorization. This flag does not skip automatic configuration.
* Before calling dc_configure() with DC_LP_AUTH_OAUTH2 set,
* the user has to confirm access at the URL returned by dc_get_oauth2_url().
*/
#define DC_LP_AUTH_OAUTH2 0x2
/**
* Force NORMAL authorization, this is the default.
* If this flag is set, automatic configuration is skipped.
*/
#define DC_LP_AUTH_NORMAL 0x4
/**
* Connect to IMAP via STARTTLS.
* If this flag is set, automatic configuration is skipped.
*/
#define DC_LP_IMAP_SOCKET_STARTTLS 0x100
/**
* Connect to IMAP via SSL.
* If this flag is set, automatic configuration is skipped.
*/
#define DC_LP_IMAP_SOCKET_SSL 0x200
/**
* Connect to IMAP unencrypted, this should not be used.
* If this flag is set, automatic configuration is skipped.
*/
#define DC_LP_IMAP_SOCKET_PLAIN 0x400
/**
* Connect to SMTP via STARTTLS.
* If this flag is set, automatic configuration is skipped.
*/
#define DC_LP_SMTP_SOCKET_STARTTLS 0x10000
/**
* Connect to SMTP via SSL.
* If this flag is set, automatic configuration is skipped.
*/
#define DC_LP_SMTP_SOCKET_SSL 0x20000
/**
* Connect to SMTP unencrypted, this should not be used.
* If this flag is set, automatic configuration is skipped.
*/
#define DC_LP_SMTP_SOCKET_PLAIN 0x40000 ///<
/**
* @}
*/
#define DC_LP_AUTH_FLAGS (DC_LP_AUTH_OAUTH2|DC_LP_AUTH_NORMAL) // if none of these flags are set, the default is chosen
#define DC_LP_IMAP_SOCKET_FLAGS (DC_LP_IMAP_SOCKET_STARTTLS|DC_LP_IMAP_SOCKET_SSL|DC_LP_IMAP_SOCKET_PLAIN) // if none of these flags are set, the default is chosen
#define DC_LP_SMTP_SOCKET_FLAGS (DC_LP_SMTP_SOCKET_STARTTLS|DC_LP_SMTP_SOCKET_SSL|DC_LP_SMTP_SOCKET_PLAIN) // if none of these flags are set, the default is chosen
/**
* @defgroup DC_EVENT DC_EVENT
*
* These constants are used as events
* reported to the callback given to dc_context_new().
* If you do not want to handle an event, it is always safe to return 0,
* so there is no need to add a "case" for every event.
*
* @addtogroup DC_EVENT
* @{
*/
/**
* The library-user may write an informational string to the log.
* Passed to the callback given to dc_context_new().
*
* This event should not be reported to the end-user using a popup or something like that.
*
* @param data1 0
* @param data2 (const char*) Info string in english language.
* Must not be free()'d or modified and is valid only until the callback returns.
* @return 0
*/
#define DC_EVENT_INFO 100
/**
* Emitted when SMTP connection is established and login was successful.
*
* @param data1 0
* @param data2 (const char*) Info string in english language.
* Must not be free()'d or modified and is valid only until the callback returns.
* @return 0
*/
#define DC_EVENT_SMTP_CONNECTED 101
/**
* Emitted when IMAP connection is established and login was successful.
*
* @param data1 0
* @param data2 (const char*) Info string in english language.
* Must not be free()'d or modified and is valid only until the callback returns.
* @return 0
*/
#define DC_EVENT_IMAP_CONNECTED 102
/**
* Emitted when a message was successfully sent to the SMTP server.
*
* @param data1 0
* @param data2 (const char*) Info string in english language.
* Must not be free()'d or modified and is valid only until the callback returns.
* @return 0
*/
#define DC_EVENT_SMTP_MESSAGE_SENT 103
/**
* The library-user should write a warning string to the log.
* Passed to the callback given to dc_context_new().
*
* This event should not be reported to the end-user using a popup or something like that.
*
* @param data1 0
* @param data2 (const char*) Warning string in english language.
* Must not be free()'d or modified and is valid only until the callback returns.
* @return 0
*/
#define DC_EVENT_WARNING 300
/**
* The library-user should report an error to the end-user.
* Passed to the callback given to dc_context_new().
*
* As most things are asynchronous, things may go wrong at any time and the user
* should not be disturbed by a dialog or so. Instead, use a bubble or so.
*
* However, for ongoing processes (eg. dc_configure())
* or for functions that are expected to fail (eg. dc_continue_key_transfer())
* it might be better to delay showing these events until the function has really
* failed (returned false). It should be sufficient to report only the _last_ error
* in a messasge box then.
*
* @param data1 0
* @param data2 (const char*) Error string, always set, never NULL. Frequent error strings are
* localized using #DC_EVENT_GET_STRING, however, most error strings will be in english language.
* Must not be free()'d or modified and is valid only until the callback returns.
* @return 0
*/
#define DC_EVENT_ERROR 400
/**
* An action cannot be performed because there is no network available.
*
* The library will typically try over after a some time
* and when dc_maybe_network() is called.
*
* Network errors should be reported to users in a non-disturbing way,
* however, as network errors may come in a sequence,
* it is not useful to raise each an every error to the user.
* For this purpose, data1 is set to 1 if the error is probably worth reporting.
*
* Moreover, if the UI detects that the device is offline,
* it is probably more useful to report this to the user
* instead of the string from data2.
*
* @param data1 (int) 1=first/new network error, should be reported the user;
* 0=subsequent network error, should be logged only
* @param data2 (const char*) Error string, always set, never NULL.
* Must not be free()'d or modified and is valid only until the callback returns.
* @return 0
*/
#define DC_EVENT_ERROR_NETWORK 401
/**
* An action cannot be performed because the user is not in the group.
* Reported eg. after a call to
* dc_set_chat_name(), dc_set_chat_profile_image(),
* dc_add_contact_to_chat(), dc_remove_contact_from_chat(),
* dc_send_text_msg() or another sending function.
*
* @param data1 0
* @param data2 (const char*) Info string in english language.
* Must not be free()'d or modified
* and is valid only until the callback returns.
* @return 0
*/
#define DC_EVENT_ERROR_SELF_NOT_IN_GROUP 410
/**
* Messages or chats changed. One or more messages or chats changed for various
* reasons in the database:
* - Messages sent, received or removed
* - Chats created, deleted or archived
* - A draft has been set
*
* @param data1 (int) chat_id for single added messages
* @param data2 (int) msg_id for single added messages
* @return 0
*/
#define DC_EVENT_MSGS_CHANGED 2000
/**
* There is a fresh message. Typically, the user will show an notification
* when receiving this message.
*
* There is no extra #DC_EVENT_MSGS_CHANGED event send together with this event.
*
* @param data1 (int) chat_id
* @param data2 (int) msg_id
* @return 0
*/
#define DC_EVENT_INCOMING_MSG 2005
/**
* A single message is sent successfully. State changed from DC_STATE_OUT_PENDING to
* DC_STATE_OUT_DELIVERED, see dc_msg_get_state().
*
* @param data1 (int) chat_id
* @param data2 (int) msg_id
* @return 0
*/
#define DC_EVENT_MSG_DELIVERED 2010
/**
* A single message could not be sent. State changed from DC_STATE_OUT_PENDING or DC_STATE_OUT_DELIVERED to
* DC_STATE_OUT_FAILED, see dc_msg_get_state().
*
* @param data1 (int) chat_id
* @param data2 (int) msg_id
* @return 0
*/
#define DC_EVENT_MSG_FAILED 2012
/**
* A single message is read by the receiver. State changed from DC_STATE_OUT_DELIVERED to
* DC_STATE_OUT_MDN_RCVD, see dc_msg_get_state().
*
* @param data1 (int) chat_id
* @param data2 (int) msg_id
* @return 0
*/
#define DC_EVENT_MSG_READ 2015
/**
* Chat changed. The name or the image of a chat group was changed or members were added or removed.
* Or the verify state of a chat has changed.
* See dc_set_chat_name(), dc_set_chat_profile_image(), dc_add_contact_to_chat()
* and dc_remove_contact_from_chat().
*
* @param data1 (int) chat_id
* @param data2 0
* @return 0
*/
#define DC_EVENT_CHAT_MODIFIED 2020
/**
* Contact(s) created, renamed, blocked or deleted.
*
* @param data1 (int) If not 0, this is the contact_id of an added contact that should be selected.
* @param data2 0
* @return 0
*/
#define DC_EVENT_CONTACTS_CHANGED 2030
/**
* Location of one or more contact has changed.
*
* @param data1 (int) contact_id of the contact for which the location has changed.
* If the locations of several contacts have been changed,
* eg. after calling dc_delete_all_locations(), this parameter is set to 0.
* @param data2 0
* @return 0
*/
#define DC_EVENT_LOCATION_CHANGED 2035
/**
* Inform about the configuration progress started by dc_configure().
*
* @param data1 (int) 0=error, 1-999=progress in permille, 1000=success and done
* @param data2 0
* @return 0
*/
#define DC_EVENT_CONFIGURE_PROGRESS 2041
/**
* Inform about the import/export progress started by dc_imex().
*
* @param data1 (int) 0=error, 1-999=progress in permille, 1000=success and done
* @param data2 0
* @return 0
*/
#define DC_EVENT_IMEX_PROGRESS 2051
/**
* A file has been exported. A file has been written by dc_imex().
* This event may be sent multiple times by a single call to dc_imex().
*
* A typical purpose for a handler of this event may be to make the file public to some system
* services.
*
* @param data1 (const char*) Path and file name.
* Must not be free()'d or modified and is valid only until the callback returns.
* @param data2 0
* @return 0
*/
#define DC_EVENT_IMEX_FILE_WRITTEN 2052
/**
* Progress information of a secure-join handshake from the view of the inviter
* (Alice, the person who shows the QR code).
*
* These events are typically sent after a joiner has scanned the QR code
* generated by dc_get_securejoin_qr().
*
* @param data1 (int) ID of the contact that wants to join.
* @param data2 (int) Progress as:
* 300=vg-/vc-request received, typically shown as "bob@addr joins".
* 600=vg-/vc-request-with-auth received, vg-member-added/vc-contact-confirm sent, typically shown as "bob@addr verified".
* 800=vg-member-added-received received, shown as "bob@addr securely joined GROUP", only sent for the verified-group-protocol.
* 1000=Protocol finished for this contact.
* @return 0
*/
#define DC_EVENT_SECUREJOIN_INVITER_PROGRESS 2060
/**
* Progress information of a secure-join handshake from the view of the joiner
* (Bob, the person who scans the QR code).
*
* The events are typically sent while dc_join_securejoin(), which
* may take some time, is executed.
*
* @param data1 (int) ID of the inviting contact.
* @param data2 (int) Progress as:
* 400=vg-/vc-request-with-auth sent, typically shown as "alice@addr verified, introducing myself."
* (Bob has verified alice and waits until Alice does the same for him)
* @return 0
*/
#define DC_EVENT_SECUREJOIN_JOINER_PROGRESS 2061
// the following events are functions that should be provided by the frontends
/**
* Requeste a localized string from the frontend.
*
* @param data1 (int) ID of the string to request, one of the DC_STR_* constants.
* @param data2 (int) The count. If the requested string contains a placeholder for a numeric value,
* the ui may use this value to return different strings on different plural forms.
* @return (const char*) Null-terminated UTF-8 string.
* The string will be free()'d by the core,
* so it must be allocated using malloc() or a compatible function.
* Return 0 if the ui cannot provide the requested string
* the core will use a default string in english language then.
*/
#define DC_EVENT_GET_STRING 2091
/**
* @}
*/
#define DC_EVENT_FILE_COPIED 2055 // deprecated
#define DC_EVENT_IS_OFFLINE 2081 // deprecated
#define DC_ERROR_SEE_STRING 0 // deprecated
#define DC_ERROR_SELF_NOT_IN_GROUP 1 // deprecated
#define DC_STR_SELFNOTINGRP 21 // deprecated
#define DC_EVENT_DATA1_IS_STRING(e) ((e)==DC_EVENT_IMEX_FILE_WRITTEN || (e)==DC_EVENT_FILE_COPIED)
#define DC_EVENT_DATA2_IS_STRING(e) ((e)>=100 && (e)<=499)
#define DC_EVENT_RETURNS_INT(e) ((e)==DC_EVENT_IS_OFFLINE)
#define DC_EVENT_RETURNS_STRING(e) ((e)==DC_EVENT_GET_STRING)
/*
* Values for dc_get|set_config("show_emails")
*/
#define DC_SHOW_EMAILS_OFF 0
#define DC_SHOW_EMAILS_ACCEPTED_CONTACTS 1
#define DC_SHOW_EMAILS_ALL 2
/*
* TODO: Strings need some doumentation about used placeholders.
*
* @defgroup DC_STR DC_STR
*
* These constants are used to request strings using #DC_EVENT_GET_STRING.
*
* @addtogroup DC_STR
* @{
*/
#define DC_STR_NOMESSAGES 1
#define DC_STR_SELF 2
#define DC_STR_DRAFT 3
#define DC_STR_MEMBER 4
#define DC_STR_CONTACT 6
#define DC_STR_VOICEMESSAGE 7
#define DC_STR_DEADDROP 8
#define DC_STR_IMAGE 9
#define DC_STR_VIDEO 10
#define DC_STR_AUDIO 11
#define DC_STR_FILE 12
#define DC_STR_STATUSLINE 13
#define DC_STR_NEWGROUPDRAFT 14
#define DC_STR_MSGGRPNAME 15
#define DC_STR_MSGGRPIMGCHANGED 16
#define DC_STR_MSGADDMEMBER 17
#define DC_STR_MSGDELMEMBER 18
#define DC_STR_MSGGROUPLEFT 19
#define DC_STR_GIF 23
#define DC_STR_ENCRYPTEDMSG 24
#define DC_STR_E2E_AVAILABLE 25
#define DC_STR_ENCR_TRANSP 27
#define DC_STR_ENCR_NONE 28
#define DC_STR_CANTDECRYPT_MSG_BODY 29
#define DC_STR_FINGERPRINTS 30
#define DC_STR_READRCPT 31
#define DC_STR_READRCPT_MAILBODY 32
#define DC_STR_MSGGRPIMGDELETED 33
#define DC_STR_E2E_PREFERRED 34
#define DC_STR_CONTACT_VERIFIED 35
#define DC_STR_CONTACT_NOT_VERIFIED 36
#define DC_STR_CONTACT_SETUP_CHANGED 37
#define DC_STR_ARCHIVEDCHATS 40
#define DC_STR_STARREDMSGS 41
#define DC_STR_AC_SETUP_MSG_SUBJECT 42
#define DC_STR_AC_SETUP_MSG_BODY 43
#define DC_STR_SELFTALK_SUBTITLE 50
#define DC_STR_CANNOT_LOGIN 60
#define DC_STR_SERVER_RESPONSE 61
#define DC_STR_MSGACTIONBYUSER 62
#define DC_STR_MSGACTIONBYME 63
#define DC_STR_MSGLOCATIONENABLED 64
#define DC_STR_MSGLOCATIONDISABLED 65
#define DC_STR_LOCATION 66
#define DC_STR_COUNT 66
void dc_str_unref (char*);
/*
* @}
*/
#ifdef __cplusplus
}
#endif
#endif // __DELTACHAT_H__
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