521 lines
20 KiB
C
521 lines
20 KiB
C
/* snac - A simple, minimalistic ActivityPub instance */
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/* copyright (c) 2022 - 2026 grunfink et al. / MIT license */
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#define VERSION "2.95-sf.2"
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#define USER_AGENT "snacforge/" VERSION
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#define WHAT_IS_SNAC_URL "https:/" "/comam.es/what-is-snac"
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#define SNACFORGE_URL "https:/" "/git.sdf.org/erici/snacforge"
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#define SNACFORGE_DOC_URL SNACFORGE_URL "/src/branch/master/doc"
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#define DIR_PERM 00770
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#define DIR_PERM_ADD 02770
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#define ISO_DATE_SPEC "%Y-%m-%dT%H:%M:%SZ"
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#ifndef MAX_THREADS
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#define MAX_THREADS 256
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#endif
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#ifndef MAX_JSON_DEPTH
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#define MAX_JSON_DEPTH 8
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#endif
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#ifndef MAX_CONVERSATION_LEVELS
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#define MAX_CONVERSATION_LEVELS 48
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#endif
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#define MD5_HEX_SIZE 33
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#define MD5_ALREADY_SEEN_MARK "00000000000000000000000000000000"
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extern double disk_layout;
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extern xs_str *srv_basedir;
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extern xs_dict *srv_config;
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extern xs_str *srv_baseurl;
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extern xs_str *srv_proxy_token_seed;
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extern xs_dict *srv_langs;
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extern const char *months[12];
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extern int dbglevel;
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#define L(s) lang_str((s), user)
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#define LL(s) (s)
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#define POSTLIKE_OBJECT_TYPE "Note|Question|Page|Article|Video|Audio|Event"
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int mkdirx(const char *pathname);
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#define valid_status(status) xs_http_valid_status(status)
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xs_str *tid(int offset);
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double ftime(void);
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void srv_log(xs_str *str);
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#define srv_debug(level, str) do { if (dbglevel >= (level)) \
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{ srv_log((str)); } } while (0)
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typedef struct {
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xs_str *uid; /* uid */
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xs_str *basedir; /* user base directory */
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xs_dict *config; /* user configuration */
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xs_dict *config_o; /* user configuration admin override */
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xs_dict *key; /* keypair */
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xs_dict *links; /* validated links */
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xs_str *actor; /* actor url */
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xs_str *actor_alt; /* actor alternative url */
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xs_str *md5; /* actor url md5 */
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const xs_dict *lang;/* string translation dict */
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const char *tz; /* configured timezone */
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} snac;
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typedef struct {
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int s_size; /* struct size (for double checking) */
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int srv_running; /* server running on/off */
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int use_fcgi; /* FastCGI use on/off */
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time_t srv_start_time; /* start time */
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int job_fifo_size; /* job fifo size */
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int peak_job_fifo_size; /* maximum job fifo size seen */
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int n_threads; /* number of configured threads */
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enum { THST_STOP, THST_WAIT, THST_IN, THST_QUEUE } th_state[MAX_THREADS];
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} srv_state;
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typedef enum {
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OP_CHECK = 0,
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OP_ADD = 1,
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OP_DEL = 2,
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OP_LIST = 3,
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OP_FIND = 4,
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OP_ID = 5
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} snac_op;
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extern srv_state *p_state;
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enum {
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SCOPE_PUBLIC = 0,
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SCOPE_MENTIONED = 1,
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SCOPE_UNLISTED = 2,
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SCOPE_FOLLOWERS = 3,
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};
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void snac_log(const snac *user, xs_str *str);
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#define snac_debug(user, level, str) do { if (dbglevel >= (level)) \
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{ snac_log((user), (str)); } } while (0)
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int srv_open(const char *basedir, int auto_upgrade);
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void srv_free(void);
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void sbox_enter(const char *basedir);
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int user_open(snac *snac, const char *uid);
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void user_free(snac *snac);
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xs_list *user_list(void);
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int user_open_by_md5(snac *snac, const char *md5);
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int user_persist(snac *snac, int publish);
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int validate_uid(const char *uid);
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xs_str *hash_password(const char *uid, const char *passwd, const char *nonce);
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int check_password(const char *uid, const char *passwd, const char *hash);
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char* findprog(const char *prog);
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int strip_media(const char *fn);
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int check_strip_tool(void);
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void srv_archive(const char *direction, const char *url, xs_dict *req,
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const char *payload, int p_size,
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int status, xs_dict *headers,
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const char *body, int b_size);
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void srv_archive_error(const char *prefix, const xs_str *err,
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const xs_dict *req, const xs_val *data);
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void srv_archive_qitem(const char *prefix, xs_dict *q_item);
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double mtime_nl(const char *fn, int *n_link);
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#define mtime(fn) mtime_nl(fn, NULL)
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double f_ctime(const char *fn);
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int index_add_md5(const char *fn, const char *md5);
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int index_add(const char *fn, const char *id);
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int index_gc(const char *fn);
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int index_first(const char *fn, char md5[MD5_HEX_SIZE]);
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int index_len(const char *fn);
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xs_list *index_list(const char *fn, int max);
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int index_desc_next(FILE *f, char md5[MD5_HEX_SIZE]);
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int index_desc_first(FILE *f, char md5[MD5_HEX_SIZE], int skip);
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int index_asc_next(FILE *f, char md5[MD5_HEX_SIZE]);
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int index_asc_first(FILE *f, char md5[MD5_HEX_SIZE], const char *seek_md5);
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xs_list *index_list_desc(const char *fn, int skip, int show);
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int object_add(const char *id, const xs_dict *obj);
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int object_add_ow(const char *id, const xs_dict *obj);
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int object_here_by_md5(const char *id);
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int object_here(const char *id);
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int object_get_by_md5(const char *md5, xs_dict **obj);
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int object_get(const char *id, xs_dict **obj);
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int object_del(const char *id);
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int object_del_if_unref(const char *id);
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double object_ctime_by_md5(const char *md5);
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double object_ctime(const char *id);
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double object_mtime_by_md5(const char *md5);
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double object_mtime(const char *id);
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void object_touch(const char *id);
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int object_admire(const char *id, const char *actor, int like);
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int object_unadmire(const char *id, const char *actor, int like);
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int object_emoji_react(const char *mid, const char *eid);
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int object_rm_emoji_react(const char *mid, const char *eid);
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int object_likes_len(const char *id);
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int object_announces_len(const char *id);
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int object_emojireacts_len(const char *id);
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xs_list *object_children(const char *id);
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xs_list *object_likes(const char *id);
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xs_list *object_announces(const char *id);
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xs_list *object_get_emoji_reacts(const char *id);
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int object_parent(const char *md5, char parent[MD5_HEX_SIZE]);
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int object_user_cache_add(snac *snac, const char *id, const char *cachedir);
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int object_user_cache_del(snac *snac, const char *id, const char *cachedir);
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int follower_add(snac *snac, const char *actor);
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int follower_del(snac *snac, const char *actor);
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int follower_check(snac *snac, const char *actor);
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xs_list *follower_list(snac *snac);
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int follower_list_len(snac *snac);
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int pending_add(snac *user, const char *actor, const xs_dict *msg);
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int pending_check(snac *user, const char *actor);
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xs_dict *pending_get(snac *user, const char *actor);
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void pending_del(snac *user, const char *actor);
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xs_list *pending_list(snac *user);
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int pending_count(snac *user);
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double timeline_mtime(snac *snac);
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int timeline_touch(snac *snac);
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int timeline_here_by_md5(snac *snac, const char *md5);
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int timeline_here(snac *snac, const char *id);
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int timeline_get_by_md5(snac *snac, const char *md5, xs_dict **msg);
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int timeline_del(snac *snac, const char *id);
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xs_str *user_index_fn(snac *user, const char *idx_name);
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xs_list *timeline_simple_list(snac *user, const char *idx_name, int skip, int show, int *more);
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xs_list *timeline_list(snac *snac, const char *idx_name, int skip, int show, int *more);
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int timeline_add(snac *snac, const char *id, const xs_dict *o_msg);
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int timeline_admire(snac *snac, const char *id, const char *admirer, int like, const xs_dict *msg);
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int timeline_emoji_react(const char *atto, const char *id, const xs_dict *o_msg);
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xs_list *timeline_top_level(snac *snac, const xs_list *list);
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void timeline_add_mark(snac *user);
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xs_list *local_list(snac *snac, int max);
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xs_str *instance_index_fn(void);
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xs_list *timeline_instance_list(int skip, int show);
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int following_add(snac *snac, const char *actor, const xs_dict *msg);
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int following_del(snac *snac, const char *actor);
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int following_check(snac *snac, const char *actor);
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int following_get(snac *snac, const char *actor, xs_dict **data);
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xs_list *following_list(snac *snac);
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int following_list_len(snac *snac);
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void mute(snac *snac, const char *actor);
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void unmute(snac *snac, const char *actor);
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int is_muted(snac *snac, const char *actor);
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xs_list *muted_list(snac *user);
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xs_str *emoji_reacted(snac *user, const char *id);
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int is_bookmarked(snac *user, const char *id);
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int bookmark(snac *user, const char *id);
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int unbookmark(snac *user, const char *id);
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xs_list *bookmark_list(snac *user);
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xs_str *bookmark_index_fn(snac *user);
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int pin(snac *user, const char *id);
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int unpin(snac *user, const char *id);
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int is_pinned(snac *user, const char *id);
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int is_pinned_by_md5(snac *user, const char *md5);
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xs_list *pinned_list(snac *user);
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int is_draft(snac *user, const char *id);
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void draft_del(snac *user, const char *id);
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void draft_add(snac *user, const char *id, const xs_dict *msg);
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xs_list *draft_list(snac *user);
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int is_scheduled(snac *user, const char *id);
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void schedule_del(snac *user, const char *id);
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void schedule_add(snac *user, const char *id, const xs_dict *msg);
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xs_list *scheduled_list(snac *user);
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void scheduled_process(snac *user);
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int limited(snac *user, const char *id, snac_op);
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#define is_limited(user, id) limited((user), (id), OP_CHECK)
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#define limit(user, id) limited((user), (id), OP_ADD)
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#define unlimit(user, id) limited((user), (id), OP_DEL)
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void hide(snac *snac, const char *id);
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int is_hidden(snac *snac, const char *id);
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int unhide(snac *user, const char *id);
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void tag_index(const char *id, const xs_dict *obj);
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xs_str *tag_fn(const char *tag);
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xs_list *tag_search(const char *tag, int skip, int show);
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xs_val *list_maint(snac *user, const char *list, snac_op op);
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xs_str *list_timeline_fn(snac *user, const char *list);
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xs_list *list_timeline(snac *user, const char *list, int skip, int show);
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xs_val *list_members(snac *user, const char *list_id, const char *actor_md5, snac_op op);
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void list_distribute(snac *user, const char *who, const xs_dict *post);
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int actor_add(const char *actor, const xs_dict *msg);
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int actor_get(const char *actor, xs_dict **data);
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int actor_get_refresh(snac *user, const char *actor, xs_dict **data);
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int static_get(snac *snac, const char *id, xs_val **data, int *size, const char *inm, xs_str **etag);
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void static_put(snac *snac, const char *id, const char *data, int size);
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void static_put_meta(snac *snac, const char *id, const char *str);
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xs_str *static_get_meta(snac *snac, const char *id);
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double history_mtime(snac *snac, const char *id);
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void history_add(snac *snac, const char *id, const char *content, int size,
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xs_str **etag);
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int history_get(snac *snac, const char *id, xs_str **content, int *size,
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const char *inm, xs_str **etag);
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int history_del(snac *snac, const char *id);
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xs_list *history_list(snac *snac);
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void lastlog_write(snac *snac, const char *source);
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xs_str *notify_check_time(snac *snac, int reset);
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void notify_add(snac *snac, const char *type, const char *utype,
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const char *actor, const char *objid, const xs_dict *msg);
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xs_dict *notify_get(snac *snac, const char *id);
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int notify_new_num(snac *snac);
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xs_list *notify_list(snac *snac, int skip, int show);
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xs_list *notify_filter_list(snac *snac, xs_list *ids, int skip, int show);
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void notify_clear(snac *snac);
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xs_dict *markers_get(snac *snac, const xs_list *markers);
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xs_dict *markers_set(snac *snac, const char *home_marker, const char *notify_marker);
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void inbox_add(const char *inbox);
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void inbox_add_by_actor(const xs_dict *actor);
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xs_list *inbox_list(void);
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int is_instance_blocked(const char *instance);
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int instance_block(const char *instance);
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int instance_unblock(const char *instance);
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int content_match(const char *file, const xs_dict *msg);
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xs_list *content_search(snac *user, const char *regex,
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int priv, int skip, int show, int max_secs, int *timeout);
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int actor_failure(const char *actor, snac_op op);
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int instance_failure(const char *url, snac_op op);
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int grave(const char *objid, snac_op op);
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void enqueue_input(snac *snac, const xs_dict *msg, const xs_dict *req, int retries);
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void enqueue_shared_input(const xs_dict *msg, const xs_dict *req, int retries);
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void enqueue_output_raw(const char *keyid, const char *seckey,
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const xs_dict *msg, const xs_str *inbox,
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int retries, int p_status);
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void enqueue_output(snac *snac, const xs_dict *msg,
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const xs_str *inbox, int retries, int p_status);
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void enqueue_output_by_actor(snac *snac, const xs_dict *msg,
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const xs_str *actor, int retries);
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void enqueue_email(const xs_str *msg, int retries);
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void enqueue_telegram(const xs_str *msg, const char *bot, const char *chat_id);
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void enqueue_ntfy(const xs_str *msg, const char *ntfy_server, const char *ntfy_token);
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void enqueue_message(snac *snac, const xs_dict *msg);
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void enqueue_close_question(snac *user, const char *id, int end_secs);
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void enqueue_object_request(snac *user, const char *id, int forward_secs);
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void enqueue_verify_links(snac *user);
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void enqueue_actor_refresh(snac *user, const char *actor, int forward_secs);
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void enqueue_webmention(const xs_dict *msg);
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void enqueue_notify_webhook(snac *user, const xs_dict *noti, int retries);
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void enqueue_collect_replies(snac *user, const char *post);
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void enqueue_collect_outbox(snac *user, const char *actor_id);
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void enqueue_fsck(void);
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int was_question_voted(snac *user, const char *id);
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xs_list *user_queue(snac *snac);
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xs_list *queue(void);
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xs_dict *queue_get(const char *fn);
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xs_dict *dequeue(const char *fn);
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void purge(snac *snac);
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void purge_all(void);
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xs_dict *http_signed_request_raw(const char *keyid, const char *seckey,
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const char *method, const char *url,
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const xs_dict *headers,
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const char *body, int b_size,
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int *status, xs_str **payload, int *p_size,
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int timeout);
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xs_dict *http_signed_request(snac *snac, const char *method, const char *url,
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const xs_dict *headers,
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const char *body, int b_size,
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int *status, xs_str **payload, int *p_size,
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int timeout);
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int check_signature(const xs_dict *req, xs_str **err, xs_str **key_id);
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srv_state *srv_state_op(xs_str **fname, int op);
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void httpd(void);
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int webfinger_request_signed(snac *snac, const char *qs, xs_str **actor, xs_str **user);
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int webfinger_request(const char *qs, xs_str **actor, xs_str **user);
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int webfinger_request_fake(const char *qs, xs_str **actor, xs_str **user);
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int webfinger_get_handler(const xs_dict *req, const char *q_path,
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xs_val **body, int *b_size, char **ctype);
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xs_str *default_avatar_base64(void);
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xs_str *default_avatar_data(int *size);
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xs_str *process_tags(snac *snac, const char *content, xs_list **tag);
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void collect_replies(snac *user, const char *id);
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void collect_outbox(snac *user, const char *actor_id);
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const char *get_atto(const xs_dict *msg);
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const char *get_in_reply_to(const xs_dict *msg);
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xs_list *get_attachments(const xs_dict *msg);
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xs_dict *msg_admiration(snac *snac, const char *object, const char *type);
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xs_dict *msg_repulsion(snac *user, const char *id, const char *type);
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xs_dict *msg_emoji_init(snac *user, const char *mid, const char *eid);
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xs_dict *msg_emoji_unreact(snac *user, const char *id, const char *type);
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xs_dict *msg_create(snac *snac, const xs_dict *object);
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xs_dict *msg_follow(snac *snac, const char *actor);
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xs_dict *msg_note(snac *snac, const xs_str *content, const xs_val *rcpts,
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const xs_str *in_reply_to, const xs_list *attach,
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int scope, const char *lang_str, const char *msg_date);
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xs_dict *msg_undo(snac *snac, const xs_val *object);
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xs_dict *msg_delete(snac *snac, const char *id);
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xs_dict *msg_actor(snac *snac);
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xs_dict *msg_update(snac *snac, const xs_dict *object);
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xs_dict *msg_ping(snac *user, const char *rcpt);
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xs_dict *msg_pong(snac *user, const char *rcpt, const char *object);
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xs_dict *msg_move(snac *user, const char *new_account);
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xs_dict *msg_accept(snac *snac, const xs_val *object, const char *to);
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xs_dict *msg_question(snac *user, const char *content, xs_list *attach,
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const xs_list *opts, int multiple, int end_secs);
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xs_dict *msg_replies(snac *user, const char *id, int fill);
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int get_msg_visibility(const xs_dict *msg);
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int activitypub_request(snac *snac, const char *url, xs_dict **data);
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int actor_request(snac *user, const char *actor, xs_dict **data);
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int send_to_inbox_raw(const char *keyid, const char *seckey,
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const xs_str *inbox, const xs_dict *msg,
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xs_val **payload, int *p_size, int timeout);
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int send_to_inbox(snac *snac, const xs_str *inbox, const xs_dict *msg,
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xs_val **payload, int *p_size, int timeout);
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xs_str *get_actor_inbox(const char *actor, int shared);
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int send_to_actor(snac *snac, const char *actor, const xs_dict *msg,
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xs_val **payload, int *p_size, int timeout);
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int is_msg_mine(snac *user, const char *id);
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int is_msg_public(const xs_dict *msg);
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int is_msg_from_private_user(const xs_dict *msg);
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int is_msg_for_me(snac *snac, const xs_dict *msg);
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int process_user_queue(snac *snac);
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void process_queue_item(xs_dict *q_item);
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int process_queue(void);
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int activitypub_get_handler(const xs_dict *req, const char *q_path,
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char **body, int *b_size, char **ctype);
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int activitypub_post_handler(const xs_dict *req, const char *q_path,
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char *payload, int p_size,
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char **body, int *b_size, char **ctype);
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xs_dict *emojis(void);
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xs_dict *emojis_rm_categories(void);
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xs_str *format_text_with_emoji(snac *user, const char *text, int ems, const char *proxy);
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xs_str *not_really_markdown(const char *content, xs_list **attach, xs_list **tag);
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xs_str *sanitize(const char *content);
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xs_str *encode_html(const char *str);
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xs_str *html_timeline(snac *user, const xs_list *list, int read_only,
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int skip, int show, int show_more,
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const char *title, const char *page,
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int utl, const char *error, int terse, int tb_friendly);
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int html_get_handler(const xs_dict *req, const char *q_path,
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char **body, int *b_size, char **ctype,
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xs_str **etag, xs_str **last_modified);
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int html_post_handler(const xs_dict *req, const char *q_path,
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char *payload, int p_size,
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char **body, int *b_size, char **ctype);
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int write_default_css(void);
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int snac_init(const char *_basedir);
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int adduser(const char *uid);
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int resetpwd(snac *snac);
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int deluser(snac *user);
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extern const char *snac_blurb;
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void job_post(const xs_val *job, int urgent);
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void job_wait(xs_val **job);
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int oauth_get_handler(const xs_dict *req, const char *q_path,
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char **body, int *b_size, char **ctype);
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int oauth_post_handler(const xs_dict *req, const char *q_path,
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const char *payload, int p_size,
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char **body, int *b_size, char **ctype);
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int mastoapi_get_handler(const xs_dict *req, const char *q_path,
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char **body, int *b_size, char **ctype, xs_str **link);
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int mastoapi_post_handler(const xs_dict *req, const char *q_path,
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const char *payload, int p_size,
|
|
char **body, int *b_size, char **ctype);
|
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int mastoapi_delete_handler(const xs_dict *req, const char *q_path,
|
|
const char *payload, int p_size,
|
|
char **body, int *b_size, char **ctype);
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int mastoapi_put_handler(const xs_dict *req, const char *q_path,
|
|
const char *payload, int p_size,
|
|
char **body, int *b_size, char **ctype);
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void persist_image(const char *key, const xs_val *data, const char *payload, snac *snac);
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int mastoapi_patch_handler(const xs_dict *req, const char *q_path,
|
|
const char *payload, int p_size,
|
|
char **body, int *b_size, char **ctype);
|
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void mastoapi_purge(void);
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void verify_links(snac *user);
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|
|
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void export_csv(snac *user);
|
|
void export_posts(snac *user);
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|
|
|
int migrate_account(snac *user);
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|
|
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void import_blocked_accounts_csv(snac *user, const char *fn);
|
|
void import_following_accounts_csv(snac *user, const char *fn);
|
|
void import_list_csv(snac *user, const char *fn);
|
|
void import_csv(snac *user);
|
|
int parse_port(const char *url, const char **errstr);
|
|
|
|
typedef struct {
|
|
double timestamp;
|
|
char *text;
|
|
} t_announcement;
|
|
t_announcement *announcement(double after);
|
|
|
|
xs_str *make_url(const char *href, const char *proxy, int by_token);
|
|
|
|
int badlogin_check(const char *user, const char *addr);
|
|
void badlogin_inc(const char *user, const char *addr);
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|
|
|
const char *lang_str(const char *str, const snac *user);
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|
|
|
xs_str *rss_from_timeline(snac *user, const xs_list *timeline,
|
|
const char *title, const char *link, const char *desc);
|
|
void rss_to_timeline(snac *user, const char *url);
|
|
void rss_poll_hashtags(void);
|
|
|
|
void data_fsck(void);
|
|
|
|
xs_list *user_top_ten(snac *user, int count);
|