/* snac - A simple, minimalistic ActivityPub instance */ /* copyright (c) 2022 - 2024 grunfink et al. / MIT license */ #ifndef NO_MASTODON_API #include "xs.h" #include "xs_hex.h" #include "xs_openssl.h" #include "xs_json.h" #include "xs_io.h" #include "xs_time.h" #include "xs_glob.h" #include "xs_set.h" #include "xs_random.h" #include "xs_url.h" #include "xs_mime.h" #include "xs_match.h" #include "snac.h" #include static xs_str *random_str(void) /* just what is says in the tin */ { unsigned int data[4] = {0}; xs_rnd_buf(data, sizeof(data)); return xs_hex_enc((char *)data, sizeof(data)); } int app_add(const char *id, const xs_dict *app) /* stores an app */ { if (!xs_is_hex(id)) return HTTP_STATUS_INTERNAL_SERVER_ERROR; int status = HTTP_STATUS_CREATED; xs *fn = xs_fmt("%s/app/", srv_basedir); FILE *f; mkdirx(fn); fn = xs_str_cat(fn, id); fn = xs_str_cat(fn, ".json"); if ((f = fopen(fn, "w")) != NULL) { xs_json_dump(app, 4, f); fclose(f); } else status = HTTP_STATUS_INTERNAL_SERVER_ERROR; return status; } xs_str *_app_fn(const char *id) { return xs_fmt("%s/app/%s.json", srv_basedir, id); } xs_dict *app_get(const char *id) /* gets an app */ { if (!xs_is_hex(id)) return NULL; xs *fn = _app_fn(id); xs_dict *app = NULL; FILE *f; if ((f = fopen(fn, "r")) != NULL) { app = xs_json_load(f); fclose(f); } return app; } int app_del(const char *id) /* deletes an app */ { if (!xs_is_hex(id)) return -1; xs *fn = _app_fn(id); return unlink(fn); } int token_add(const char *id, const xs_dict *token) /* stores a token */ { if (!xs_is_hex(id)) return HTTP_STATUS_INTERNAL_SERVER_ERROR; int status = HTTP_STATUS_CREATED; xs *fn = xs_fmt("%s/token/", srv_basedir); FILE *f; mkdirx(fn); fn = xs_str_cat(fn, id); fn = xs_str_cat(fn, ".json"); if ((f = fopen(fn, "w")) != NULL) { xs_json_dump(token, 4, f); fclose(f); } else status = HTTP_STATUS_INTERNAL_SERVER_ERROR; return status; } xs_dict *token_get(const char *id) /* gets a token */ { if (!xs_is_hex(id)) return NULL; xs *fn = xs_fmt("%s/token/%s.json", srv_basedir, id); xs_dict *token = NULL; FILE *f; if ((f = fopen(fn, "r")) != NULL) { token = xs_json_load(f); fclose(f); /* 'touch' the file */ utimes(fn, NULL); /* also 'touch' the app */ const char *app_id = xs_dict_get(token, "client_id"); if (app_id) { xs *afn = xs_fmt("%s/app/%s.json", srv_basedir, app_id); utimes(afn, NULL); } } return token; } int token_del(const char *id) /* deletes a token */ { if (!xs_is_hex(id)) return -1; xs *fn = xs_fmt("%s/token/%s.json", srv_basedir, id); return unlink(fn); } const char *login_page = "" "\n" "\n" "\n" "%s OAuth - Snac2\n" "" "\n" "\n" "

%s OAuth identify

\n" "

\n" ""; int oauth_get_handler(const xs_dict *req, const char *q_path, char **body, int *b_size, char **ctype) { (void)b_size; if (!xs_startswith(q_path, "/oauth/")) return 0; int status = HTTP_STATUS_NOT_FOUND; const xs_dict *msg = xs_dict_get(req, "q_vars"); xs *cmd = xs_replace_n(q_path, "/oauth", "", 1); srv_debug(1, xs_fmt("oauth_get_handler %s", q_path)); if (strcmp(cmd, "/authorize") == 0) { /** **/ const char *cid = xs_dict_get(msg, "client_id"); const char *ruri = xs_dict_get(msg, "redirect_uri"); const char *rtype = xs_dict_get(msg, "response_type"); const char *state = xs_dict_get(msg, "state"); status = HTTP_STATUS_BAD_REQUEST; if (cid && ruri && rtype && strcmp(rtype, "code") == 0) { xs *app = app_get(cid); if (app != NULL) { const char *host = xs_dict_get(srv_config, "host"); const char *proto = xs_dict_get_def(srv_config, "protocol", "https"); if (xs_is_null(state)) state = ""; *body = xs_fmt(login_page, host, host, "", proto, host, "oauth/x-snac-login", ruri, cid, state, USER_AGENT); *ctype = "text/html"; status = HTTP_STATUS_OK; srv_debug(1, xs_fmt("oauth authorize: generating login page")); } else srv_debug(1, xs_fmt("oauth authorize: bad client_id %s", cid)); } else srv_debug(1, xs_fmt("oauth authorize: invalid or unset arguments")); } else if (strcmp(cmd, "/x-snac-get-token") == 0) { /** **/ const char *host = xs_dict_get(srv_config, "host"); const char *proto = xs_dict_get_def(srv_config, "protocol", "https"); *body = xs_fmt(login_page, host, host, "", proto, host, "oauth/x-snac-get-token", "", "", "", USER_AGENT); *ctype = "text/html"; status = HTTP_STATUS_OK; } return status; } int oauth_post_handler(const xs_dict *req, const char *q_path, const char *payload, int p_size, char **body, int *b_size, char **ctype) { (void)p_size; (void)b_size; if (!xs_startswith(q_path, "/oauth/")) return 0; int status = HTTP_STATUS_NOT_FOUND; const char *i_ctype = xs_dict_get(req, "content-type"); xs *args = NULL; if (i_ctype && xs_startswith(i_ctype, "application/json")) { if (!xs_is_null(payload)) args = xs_json_loads(payload); } else if (i_ctype && xs_startswith(i_ctype, "application/x-www-form-urlencoded") && payload) { args = xs_url_vars(payload); } else args = xs_dup(xs_dict_get(req, "p_vars")); if (args == NULL) return HTTP_STATUS_BAD_REQUEST; xs *cmd = xs_replace_n(q_path, "/oauth", "", 1); srv_debug(1, xs_fmt("oauth_post_handler %s", q_path)); if (strcmp(cmd, "/x-snac-login") == 0) { /** **/ const char *login = xs_dict_get(args, "login"); const char *passwd = xs_dict_get(args, "passwd"); const char *redir = xs_dict_get(args, "redir"); const char *cid = xs_dict_get(args, "cid"); const char *state = xs_dict_get(args, "state"); const char *host = xs_dict_get(srv_config, "host"); const char *proto = xs_dict_get_def(srv_config, "protocol", "https"); /* by default, generate another login form with an error */ *body = xs_fmt(login_page, host, host, "LOGIN INCORRECT", proto, host, "oauth/x-snac-login", redir, cid, state, USER_AGENT); *ctype = "text/html"; status = HTTP_STATUS_OK; if (login && passwd && redir && cid) { snac snac; if (user_open(&snac, login)) { const char *addr = xs_or(xs_dict_get(req, "remote-addr"), xs_dict_get(req, "x-forwarded-for")); if (badlogin_check(login, addr)) { /* check the login + password */ if (check_password(login, passwd, xs_dict_get(snac.config, "passwd"))) { /* success! redirect to the desired uri */ xs *code = random_str(); xs_free(*body); if (strcmp(redir, "urn:ietf:wg:oauth:2.0:oob") == 0) { *body = xs_dup(code); } else { if (xs_str_in(redir, "?") != -1) *body = xs_fmt("%s&code=%s", redir, code); else *body = xs_fmt("%s?code=%s", redir, code); status = HTTP_STATUS_SEE_OTHER; } /* if there is a state, add it */ if (!xs_is_null(state) && *state) { *body = xs_str_cat(*body, "&state="); *body = xs_str_cat(*body, state); } srv_log(xs_fmt("oauth x-snac-login: '%s' success, redirect to %s", login, *body)); /* assign the login to the app */ xs *app = app_get(cid); if (app != NULL) { app = xs_dict_set(app, "uid", login); app = xs_dict_set(app, "code", code); app_add(cid, app); } else srv_log(xs_fmt("oauth x-snac-login: error getting app %s", cid)); } else { srv_debug(1, xs_fmt("oauth x-snac-login: login '%s' incorrect", login)); badlogin_inc(login, addr); } } user_free(&snac); } else srv_debug(1, xs_fmt("oauth x-snac-login: bad user '%s'", login)); } else srv_debug(1, xs_fmt("oauth x-snac-login: invalid or unset arguments")); } else if (strcmp(cmd, "/token") == 0) { /** **/ xs *wrk = NULL; const char *gtype = xs_dict_get(args, "grant_type"); const char *code = xs_dict_get(args, "code"); const char *cid = xs_dict_get(args, "client_id"); const char *csec = xs_dict_get(args, "client_secret"); const char *ruri = xs_dict_get(args, "redirect_uri"); const char *scope = xs_dict_get(args, "scope"); /* no client_secret? check if it's inside an authorization header (AndStatus does it this way) */ if (xs_is_null(csec)) { const char *auhdr = xs_dict_get(req, "authorization"); if (!xs_is_null(auhdr) && xs_startswith(auhdr, "Basic ")) { xs *s1 = xs_replace_n(auhdr, "Basic ", "", 1); int size; xs *s2 = xs_base64_dec(s1, &size); if (!xs_is_null(s2)) { xs *l1 = xs_split(s2, ":"); if (xs_list_len(l1) == 2) { wrk = xs_dup(xs_list_get(l1, 1)); csec = wrk; } } } } /* no code? I'm not sure of the impacts of this right now, but Subway Tooter does not provide a code so one must be generated */ if (xs_is_null(code)){ code = random_str(); } if (gtype && code && cid && csec && ruri) { xs *app = app_get(cid); if (app == NULL) { status = HTTP_STATUS_UNAUTHORIZED; srv_log(xs_fmt("oauth token: invalid app %s", cid)); } else if (strcmp(csec, xs_dict_get(app, "client_secret")) != 0) { status = HTTP_STATUS_UNAUTHORIZED; srv_log(xs_fmt("oauth token: invalid client_secret for app %s", cid)); } else { xs *rsp = xs_dict_new(); xs *cat = xs_number_new(time(NULL)); xs *tokid = random_str(); rsp = xs_dict_append(rsp, "access_token", tokid); rsp = xs_dict_append(rsp, "token_type", "Bearer"); rsp = xs_dict_append(rsp, "created_at", cat); if (!xs_is_null(scope)) rsp = xs_dict_append(rsp, "scope", scope); *body = xs_json_dumps(rsp, 4); *ctype = "application/json"; status = HTTP_STATUS_OK; const char *uid = xs_dict_get(app, "uid"); srv_debug(1, xs_fmt("oauth token: " "successful login for %s, new token %s", uid, tokid)); xs *token = xs_dict_new(); token = xs_dict_append(token, "token", tokid); token = xs_dict_append(token, "client_id", cid); token = xs_dict_append(token, "client_secret", csec); token = xs_dict_append(token, "uid", uid); token = xs_dict_append(token, "code", code); token_add(tokid, token); } } else { srv_debug(1, xs_fmt("oauth token: invalid or unset arguments")); status = HTTP_STATUS_BAD_REQUEST; } } else if (strcmp(cmd, "/revoke") == 0) { /** **/ const char *cid = xs_dict_get(args, "client_id"); const char *csec = xs_dict_get(args, "client_secret"); const char *tokid = xs_dict_get(args, "token"); if (cid && csec && tokid) { xs *token = token_get(tokid); *body = xs_str_new("{}"); *ctype = "application/json"; if (token == NULL || strcmp(csec, xs_dict_get(token, "client_secret")) != 0) { srv_debug(1, xs_fmt("oauth revoke: bad secret for token %s", tokid)); status = HTTP_STATUS_FORBIDDEN; } else { token_del(tokid); srv_debug(1, xs_fmt("oauth revoke: revoked token %s", tokid)); status = HTTP_STATUS_OK; /* also delete the app, as it serves no purpose from now on */ app_del(cid); } } else { srv_debug(1, xs_fmt("oauth revoke: invalid or unset arguments")); status = HTTP_STATUS_FORBIDDEN; } } if (strcmp(cmd, "/x-snac-get-token") == 0) { /** **/ const char *login = xs_dict_get(args, "login"); const char *passwd = xs_dict_get(args, "passwd"); const char *host = xs_dict_get(srv_config, "host"); const char *proto = xs_dict_get_def(srv_config, "protocol", "https"); /* by default, generate another login form with an error */ *body = xs_fmt(login_page, host, host, "LOGIN INCORRECT", proto, host, "oauth/x-snac-get-token", "", "", "", USER_AGENT); *ctype = "text/html"; status = HTTP_STATUS_OK; if (login && passwd) { snac user; if (user_open(&user, login)) { const char *addr = xs_or(xs_dict_get(req, "remote-addr"), xs_dict_get(req, "x-forwarded-for")); if (badlogin_check(login, addr)) { /* check the login + password */ if (check_password(login, passwd, xs_dict_get(user.config, "passwd"))) { /* success! create a new token */ xs *tokid = random_str(); srv_debug(1, xs_fmt("x-snac-new-token: " "successful login for %s, new token %s", login, tokid)); xs *token = xs_dict_new(); token = xs_dict_append(token, "token", tokid); token = xs_dict_append(token, "client_id", "snac-client"); token = xs_dict_append(token, "client_secret", ""); token = xs_dict_append(token, "uid", login); token = xs_dict_append(token, "code", ""); token_add(tokid, token); *ctype = "text/plain"; xs_free(*body); *body = xs_dup(tokid); } else badlogin_inc(login, addr); user_free(&user); } } } } return status; } xs_str *mastoapi_id(const xs_dict *msg) /* returns a somewhat Mastodon-compatible status id */ { const char *id = xs_dict_get(msg, "id"); xs *md5 = xs_md5_hex(id, strlen(id)); return xs_fmt("%10.0f%s", object_ctime_by_md5(md5), md5); } #define MID_TO_MD5(id) (id + 10) xs_dict *mastoapi_account(snac *logged, const xs_dict *actor) /* converts an ActivityPub actor to a Mastodon account */ { const char *id = xs_dict_get(actor, "id"); const char *pub = xs_dict_get(actor, "published"); const char *proxy = NULL; if (xs_type(id) != XSTYPE_STRING) return NULL; if (logged && xs_is_true(xs_dict_get(srv_config, "proxy_media"))) proxy = logged->actor; const char *prefu = xs_dict_get(actor, "preferredUsername"); const char *display_name = xs_dict_get(actor, "name"); if (xs_is_null(display_name) || *display_name == '\0') display_name = prefu; xs_dict *acct = xs_dict_new(); xs *acct_md5 = xs_md5_hex(id, strlen(id)); acct = xs_dict_append(acct, "id", acct_md5); acct = xs_dict_append(acct, "username", prefu); acct = xs_dict_append(acct, "display_name", display_name); acct = xs_dict_append(acct, "discoverable", xs_stock(XSTYPE_TRUE)); acct = xs_dict_append(acct, "group", xs_stock(XSTYPE_FALSE)); acct = xs_dict_append(acct, "hide_collections", xs_stock(XSTYPE_FALSE)); acct = xs_dict_append(acct, "indexable", xs_stock(XSTYPE_TRUE)); acct = xs_dict_append(acct, "noindex", xs_stock(XSTYPE_FALSE)); acct = xs_dict_append(acct, "roles", xs_stock(XSTYPE_LIST)); { /* create the acct field as user@host */ xs *l = xs_split(id, "/"); xs *fquid = xs_fmt("%s@%s", prefu, xs_list_get(l, 2)); acct = xs_dict_append(acct, "acct", fquid); } if (pub) acct = xs_dict_append(acct, "created_at", pub); else { /* unset created_at crashes Tusky, so lie like a mf */ xs *date = xs_str_utctime(0, ISO_DATE_SPEC); acct = xs_dict_append(acct, "created_at", date); } xs *last_status_at = xs_str_utctime(0, "%Y-%m-%d"); acct = xs_dict_append(acct, "last_status_at", last_status_at); const char *note = xs_dict_get(actor, "summary"); if (xs_is_null(note)) note = ""; if (strcmp(xs_dict_get(actor, "type"), "Service") == 0) acct = xs_dict_append(acct, "bot", xs_stock(XSTYPE_TRUE)); else acct = xs_dict_append(acct, "bot", xs_stock(XSTYPE_FALSE)); acct = xs_dict_append(acct, "note", note); acct = xs_dict_append(acct, "url", id); acct = xs_dict_append(acct, "uri", id); xs *avatar = NULL; const xs_dict *av = xs_dict_get(actor, "icon"); if (xs_type(av) == XSTYPE_DICT) { const char *url = xs_dict_get(av, "url"); if (url != NULL) avatar = make_url(url, proxy, 1); } if (avatar == NULL) avatar = xs_fmt("%s/susie.png", srv_baseurl); acct = xs_dict_append(acct, "avatar", avatar); acct = xs_dict_append(acct, "avatar_static", avatar); xs *header = NULL; const xs_dict *hd = xs_dict_get(actor, "image"); if (xs_type(hd) == XSTYPE_DICT) header = make_url(xs_dict_get(hd, "url"), proxy, 1); if (xs_is_null(header)) header = xs_str_new(NULL); acct = xs_dict_append(acct, "header", header); acct = xs_dict_append(acct, "header_static", header); /* emojis */ const xs_list *p; if (!xs_is_null(p = xs_dict_get(actor, "tag"))) { xs *eml = xs_list_new(); const xs_dict *v; int c = 0; while (xs_list_next(p, &v, &c)) { const char *type = xs_dict_get(v, "type"); if (!xs_is_null(type) && strcmp(type, "Emoji") == 0) { const char *name = xs_dict_get(v, "name"); const xs_dict *icon = xs_dict_get(v, "icon"); if (!xs_is_null(name) && !xs_is_null(icon)) { const char *o_url = xs_dict_get(icon, "url"); if (!xs_is_null(o_url)) { xs *url = make_url(o_url, proxy, 1); xs *nm = xs_strip_chars_i(xs_dup(name), ":"); xs *d1 = xs_dict_new(); d1 = xs_dict_append(d1, "shortcode", nm); d1 = xs_dict_append(d1, "url", url); d1 = xs_dict_append(d1, "static_url", url); d1 = xs_dict_append(d1, "visible_in_picker", xs_stock(XSTYPE_TRUE)); eml = xs_list_append(eml, d1); } } } } acct = xs_dict_append(acct, "emojis", eml); } acct = xs_dict_append(acct, "locked", xs_stock(XSTYPE_FALSE)); acct = xs_dict_append(acct, "followers_count", xs_stock(0)); acct = xs_dict_append(acct, "following_count", xs_stock(0)); acct = xs_dict_append(acct, "statuses_count", xs_stock(0)); xs *fields = xs_list_new(); p = xs_dict_get(actor, "attachment"); const xs_dict *v; /* dict of validated links */ xs_dict *val_links = NULL; const xs_dict *metadata = xs_stock(XSTYPE_DICT); snac user = {0}; if (xs_startswith(id, srv_baseurl)) { /* if it's a local user, open it and pick its validated links */ if (user_open(&user, prefu)) { val_links = user.links; metadata = xs_dict_get_def(user.config, "metadata", xs_stock(XSTYPE_DICT)); /* does this user want to publish their contact metrics? */ if (xs_is_true(xs_dict_get(user.config, "show_contact_metrics"))) { xs *fwing = following_list(&user); xs *fwers = follower_list(&user); xs *ni = xs_number_new(xs_list_len(fwing)); xs *ne = xs_number_new(xs_list_len(fwers)); acct = xs_dict_append(acct, "followers_count", ne); acct = xs_dict_append(acct, "following_count", ni); } } } if (xs_is_null(val_links)) val_links = xs_stock(XSTYPE_DICT); int c = 0; while (xs_list_next(p, &v, &c)) { const char *type = xs_dict_get(v, "type"); const char *name = xs_dict_get(v, "name"); const char *value = xs_dict_get(v, "value"); if (!xs_is_null(type) && !xs_is_null(name) && !xs_is_null(value) && strcmp(type, "PropertyValue") == 0) { xs *val_date = NULL; const char *url = xs_dict_get(metadata, name); if (!xs_is_null(url) && xs_startswith(url, "https:/" "/")) { const xs_number *verified_time = xs_dict_get(val_links, url); if (xs_type(verified_time) == XSTYPE_NUMBER) { time_t t = xs_number_get(verified_time); if (t > 0) val_date = xs_str_utctime(t, ISO_DATE_SPEC); } } xs *d = xs_dict_new(); d = xs_dict_append(d, "name", name); d = xs_dict_append(d, "value", value); d = xs_dict_append(d, "verified_at", xs_type(val_date) == XSTYPE_STRING && *val_date ? val_date : xs_stock(XSTYPE_NULL)); fields = xs_list_append(fields, d); } } user_free(&user); acct = xs_dict_append(acct, "fields", fields); return acct; } xs_str *mastoapi_date(const char *date) /* converts an ISO 8601 date to whatever format Mastodon uses */ { xs_str *s = xs_crop_i(xs_dup(date), 0, 19); s = xs_str_cat(s, ".000Z"); return s; } xs_dict *mastoapi_poll(snac *snac, const xs_dict *msg) /* creates a mastoapi Poll object */ { xs_dict *poll = xs_dict_new(); xs *mid = mastoapi_id(msg); const xs_list *opts = NULL; const xs_val *v; int num_votes = 0; xs *options = xs_list_new(); poll = xs_dict_append(poll, "id", mid); const char *date = xs_dict_get(msg, "endTime"); if (date == NULL) date = xs_dict_get(msg, "closed"); if (date == NULL) return NULL; xs *fd = mastoapi_date(date); poll = xs_dict_append(poll, "expires_at", fd); date = xs_dict_get(msg, "closed"); time_t t = 0; if (date != NULL) t = xs_parse_iso_date(date, 0); poll = xs_dict_append(poll, "expired", t < time(NULL) ? xs_stock(XSTYPE_FALSE) : xs_stock(XSTYPE_TRUE)); if ((opts = xs_dict_get(msg, "oneOf")) != NULL) poll = xs_dict_append(poll, "multiple", xs_stock(XSTYPE_FALSE)); else { opts = xs_dict_get(msg, "anyOf"); poll = xs_dict_append(poll, "multiple", xs_stock(XSTYPE_TRUE)); } int c = 0; while (xs_list_next(opts, &v, &c)) { const char *title = xs_dict_get(v, "name"); const char *replies = xs_dict_get(v, "replies"); if (title && replies) { const char *votes_count = xs_dict_get(replies, "totalItems"); if (xs_type(votes_count) == XSTYPE_NUMBER) { xs *d = xs_dict_new(); d = xs_dict_append(d, "title", title); d = xs_dict_append(d, "votes_count", votes_count); options = xs_list_append(options, d); num_votes += xs_number_get(votes_count); } } } poll = xs_dict_append(poll, "options", options); xs *vc = xs_number_new(num_votes); poll = xs_dict_append(poll, "votes_count", vc); poll = xs_dict_append(poll, "emojis", xs_stock(XSTYPE_LIST)); poll = xs_dict_append(poll, "voted", (snac && was_question_voted(snac, xs_dict_get(msg, "id"))) ? xs_stock(XSTYPE_TRUE) : xs_stock(XSTYPE_FALSE)); return poll; } xs_dict *mastoapi_status(snac *snac, const xs_dict *msg) /* converts an ActivityPub note to a Mastodon status */ { xs *actor = NULL; actor_get_refresh(snac, get_atto(msg), &actor); const char *proxy = NULL; /* if the author is not here, discard */ if (actor == NULL) return NULL; if (snac && xs_is_true(xs_dict_get(srv_config, "proxy_media"))) proxy = snac->actor; const char *type = xs_dict_get(msg, "type"); const char *id = xs_dict_get(msg, "id"); /* fail if it's not a valid actor */ if (xs_is_null(type) || xs_is_null(id)) return NULL; xs *acct = mastoapi_account(snac, actor); if (acct == NULL) return NULL; xs *idx = NULL; xs *ixc = NULL; const char *tmp; xs *mid = mastoapi_id(msg); xs_dict *st = xs_dict_new(); st = xs_dict_append(st, "id", mid); st = xs_dict_append(st, "uri", id); st = xs_dict_append(st, "url", id); st = xs_dict_append(st, "account", acct); const char *published = xs_dict_get(msg, "published"); xs *fd = NULL; if (published) fd = mastoapi_date(published); else { xs *p = xs_str_iso_date(0); fd = mastoapi_date(p); } st = xs_dict_append(st, "created_at", fd); { const char *content = xs_dict_get(msg, "content"); const char *name = xs_dict_get(msg, "name"); xs *s1 = NULL; if (name && content) s1 = xs_fmt("%s

%s", name, content); else if (name) s1 = xs_dup(name); else if (content) s1 = xs_dup(content); else s1 = xs_str_new(NULL); st = xs_dict_append(st, "content", s1); } st = xs_dict_append(st, "visibility", is_msg_public(msg) ? "public" : "private"); tmp = xs_dict_get(msg, "sensitive"); if (xs_is_null(tmp)) tmp = xs_stock(XSTYPE_FALSE); st = xs_dict_append(st, "sensitive", tmp); tmp = xs_dict_get(msg, "summary"); if (xs_is_null(tmp)) tmp = ""; st = xs_dict_append(st, "spoiler_text", tmp); /* create the list of attachments */ xs *attach = get_attachments(msg); { xs_list *p = attach; const xs_dict *v; xs *matt = xs_list_new(); while (xs_list_iter(&p, &v)) { const char *type = xs_dict_get(v, "type"); const char *o_href = xs_dict_get(v, "href"); const char *name = xs_dict_get(v, "name"); if (xs_match(type, "image/*|video/*|Image|Video")) { /* */ xs *matteid = xs_fmt("%s_%d", id, xs_list_len(matt)); xs *href = make_url(o_href, proxy, 1); xs *d = xs_dict_new(); d = xs_dict_append(d, "id", matteid); d = xs_dict_append(d, "url", href); d = xs_dict_append(d, "preview_url", href); d = xs_dict_append(d, "remote_url", href); d = xs_dict_append(d, "description", name); d = xs_dict_append(d, "type", (*type == 'v' || *type == 'V') ? "video" : "image"); matt = xs_list_append(matt, d); } } st = xs_dict_append(st, "media_attachments", matt); } { xs *ml = xs_list_new(); xs *htl = xs_list_new(); xs *eml = xs_list_new(); const xs_list *tag = xs_dict_get(msg, "tag"); int n = 0; xs *tag_list = NULL; if (xs_type(tag) == XSTYPE_DICT) { tag_list = xs_list_new(); tag_list = xs_list_append(tag_list, tag); } else if (xs_type(tag) == XSTYPE_LIST) tag_list = xs_dup(tag); else tag_list = xs_list_new(); tag = tag_list; const xs_dict *v; int c = 0; while (xs_list_next(tag, &v, &c)) { const char *type = xs_dict_get(v, "type"); if (xs_is_null(type)) continue; xs *d1 = xs_dict_new(); if (strcmp(type, "Mention") == 0) { const char *name = xs_dict_get(v, "name"); const char *href = xs_dict_get(v, "href"); if (!xs_is_null(name) && !xs_is_null(href) && (snac == NULL || strcmp(href, snac->actor) != 0)) { xs *nm = xs_strip_chars_i(xs_dup(name), "@"); xs *id = xs_fmt("%d", n++); d1 = xs_dict_append(d1, "id", id); d1 = xs_dict_append(d1, "username", nm); d1 = xs_dict_append(d1, "acct", nm); d1 = xs_dict_append(d1, "url", href); ml = xs_list_append(ml, d1); } } else if (strcmp(type, "Hashtag") == 0) { const char *name = xs_dict_get(v, "name"); const char *href = xs_dict_get(v, "href"); if (!xs_is_null(name) && !xs_is_null(href)) { xs *nm = xs_strip_chars_i(xs_dup(name), "#"); d1 = xs_dict_append(d1, "name", nm); d1 = xs_dict_append(d1, "url", href); htl = xs_list_append(htl, d1); } } else if (strcmp(type, "Emoji") == 0) { const char *name = xs_dict_get(v, "name"); const xs_dict *icon = xs_dict_get(v, "icon"); if (!xs_is_null(name) && !xs_is_null(icon)) { const char *o_url = xs_dict_get(icon, "url"); if (!xs_is_null(o_url)) { xs *url = make_url(o_url, snac ? snac->actor : NULL, 1); xs *nm = xs_strip_chars_i(xs_dup(name), ":"); d1 = xs_dict_append(d1, "shortcode", nm); d1 = xs_dict_append(d1, "url", url); d1 = xs_dict_append(d1, "static_url", url); d1 = xs_dict_append(d1, "visible_in_picker", xs_stock(XSTYPE_TRUE)); d1 = xs_dict_append(d1, "category", "Emojis"); eml = xs_list_append(eml, d1); } } } } st = xs_dict_append(st, "mentions", ml); st = xs_dict_append(st, "tags", htl); st = xs_dict_append(st, "emojis", eml); } xs_free(idx); xs_free(ixc); idx = object_likes(id); ixc = xs_number_new(xs_list_len(idx)); st = xs_dict_append(st, "favourites_count", ixc); st = xs_dict_append(st, "favourited", (snac && xs_list_in(idx, snac->md5) != -1) ? xs_stock(XSTYPE_TRUE) : xs_stock(XSTYPE_FALSE)); xs_free(idx); xs_free(ixc); idx = object_announces(id); ixc = xs_number_new(xs_list_len(idx)); st = xs_dict_append(st, "reblogs_count", ixc); st = xs_dict_append(st, "reblogged", (snac && xs_list_in(idx, snac->md5) != -1) ? xs_stock(XSTYPE_TRUE) : xs_stock(XSTYPE_FALSE)); /* get the last person who boosted this */ xs *boosted_by_md5 = NULL; if (xs_list_len(idx)) boosted_by_md5 = xs_dup(xs_list_get(idx, -1)); xs_free(idx); xs_free(ixc); idx = object_children(id); ixc = xs_number_new(xs_list_len(idx)); st = xs_dict_append(st, "replies_count", ixc); /* default in_reply_to values */ st = xs_dict_append(st, "in_reply_to_id", xs_stock(XSTYPE_NULL)); st = xs_dict_append(st, "in_reply_to_account_id", xs_stock(XSTYPE_NULL)); tmp = get_in_reply_to(msg); if (!xs_is_null(tmp)) { xs *irto = NULL; if (valid_status(object_get(tmp, &irto))) { xs *irt_mid = mastoapi_id(irto); st = xs_dict_set(st, "in_reply_to_id", irt_mid); const char *at = NULL; if (!xs_is_null(at = get_atto(irto))) { xs *at_md5 = xs_md5_hex(at, strlen(at)); st = xs_dict_set(st, "in_reply_to_account_id", at_md5); } } } st = xs_dict_append(st, "reblog", xs_stock(XSTYPE_NULL)); st = xs_dict_append(st, "card", xs_stock(XSTYPE_NULL)); st = xs_dict_append(st, "language", "en"); st = xs_dict_append(st, "filtered", xs_stock(XSTYPE_LIST)); st = xs_dict_append(st, "muted", xs_stock(XSTYPE_FALSE)); tmp = xs_dict_get(msg, "sourceContent"); if (xs_is_null(tmp)) tmp = ""; st = xs_dict_append(st, "text", tmp); tmp = xs_dict_get(msg, "updated"); xs *fd2 = NULL; if (xs_is_null(tmp)) tmp = xs_stock(XSTYPE_NULL); else { fd2 = mastoapi_date(tmp); tmp = fd2; } st = xs_dict_append(st, "edited_at", tmp); if (strcmp(type, "Question") == 0) { xs *poll = mastoapi_poll(snac, msg); st = xs_dict_append(st, "poll", poll); } else st = xs_dict_append(st, "poll", xs_stock(XSTYPE_NULL)); st = xs_dict_append(st, "bookmarked", (snac && is_bookmarked(snac, id)) ? xs_stock(XSTYPE_TRUE) : xs_stock(XSTYPE_FALSE)); st = xs_dict_append(st, "pinned", (snac && is_pinned(snac, id)) ? xs_stock(XSTYPE_TRUE) : xs_stock(XSTYPE_FALSE)); /* is it a boost? */ if (!xs_is_null(boosted_by_md5)) { /* create a new dummy status, using st as the 'reblog' field */ xs_dict *bst = xs_dup(st); xs *b_actor = NULL; if (valid_status(object_get_by_md5(boosted_by_md5, &b_actor))) { xs *b_acct = mastoapi_account(snac, b_actor); xs *fake_uri = NULL; if (snac) fake_uri = xs_fmt("%s/d/%s/Announce", snac->actor, mid); else fake_uri = xs_fmt("%s#%s", srv_baseurl, mid); bst = xs_dict_set(bst, "uri", fake_uri); bst = xs_dict_set(bst, "url", fake_uri); bst = xs_dict_set(bst, "account", b_acct); bst = xs_dict_set(bst, "content", ""); bst = xs_dict_set(bst, "reblog", st); xs_free(st); st = bst; } } return st; } xs_dict *mastoapi_relationship(snac *snac, const char *md5) { xs_dict *rel = NULL; xs *actor_o = NULL; if (valid_status(object_get_by_md5(md5, &actor_o))) { rel = xs_dict_new(); const char *actor = xs_dict_get(actor_o, "id"); rel = xs_dict_append(rel, "id", md5); rel = xs_dict_append(rel, "following", following_check(snac, actor) ? xs_stock(XSTYPE_TRUE) : xs_stock(XSTYPE_FALSE)); rel = xs_dict_append(rel, "showing_reblogs", xs_stock(XSTYPE_TRUE)); rel = xs_dict_append(rel, "notifying", xs_stock(XSTYPE_FALSE)); rel = xs_dict_append(rel, "followed_by", follower_check(snac, actor) ? xs_stock(XSTYPE_TRUE) : xs_stock(XSTYPE_FALSE)); rel = xs_dict_append(rel, "blocking", is_muted(snac, actor) ? xs_stock(XSTYPE_TRUE) : xs_stock(XSTYPE_FALSE)); rel = xs_dict_append(rel, "muting", xs_stock(XSTYPE_FALSE)); rel = xs_dict_append(rel, "muting_notifications", xs_stock(XSTYPE_FALSE)); rel = xs_dict_append(rel, "requested", xs_stock(XSTYPE_FALSE)); rel = xs_dict_append(rel, "domain_blocking", xs_stock(XSTYPE_FALSE)); rel = xs_dict_append(rel, "endorsed", xs_stock(XSTYPE_FALSE)); rel = xs_dict_append(rel, "note", ""); } return rel; } int process_auth_token(snac *snac, const xs_dict *req) /* processes an authorization token, if there is one */ { int logged_in = 0; const char *v; /* if there is an authorization field, try to validate it */ if (!xs_is_null(v = xs_dict_get(req, "authorization")) && xs_startswith(v, "Bearer ")) { xs *tokid = xs_replace_n(v, "Bearer ", "", 1); xs *token = token_get(tokid); if (token != NULL) { const char *uid = xs_dict_get(token, "uid"); if (!xs_is_null(uid) && user_open(snac, uid)) { logged_in = 1; /* this counts as a 'login' */ lastlog_write(snac, "mastoapi"); srv_debug(2, xs_fmt("mastoapi auth: valid token for user '%s'", uid)); } else srv_log(xs_fmt("mastoapi auth: corrupted token '%s'", tokid)); } else srv_log(xs_fmt("mastoapi auth: invalid token '%s'", tokid)); } return logged_in; } void credentials_get(char **body, char **ctype, int *status, snac snac) { xs *acct = xs_dict_new(); const xs_val *bot = xs_dict_get(snac.config, "bot"); acct = xs_dict_append(acct, "id", snac.md5); acct = xs_dict_append(acct, "username", xs_dict_get(snac.config, "uid")); acct = xs_dict_append(acct, "acct", xs_dict_get(snac.config, "uid")); acct = xs_dict_append(acct, "display_name", xs_dict_get(snac.config, "name")); acct = xs_dict_append(acct, "created_at", xs_dict_get(snac.config, "published")); acct = xs_dict_append(acct, "last_status_at", xs_dict_get(snac.config, "published")); acct = xs_dict_append(acct, "note", xs_dict_get(snac.config, "bio")); acct = xs_dict_append(acct, "url", snac.actor); acct = xs_dict_append(acct, "locked", xs_stock(XSTYPE_FALSE)); acct = xs_dict_append(acct, "bot", xs_stock(xs_is_true(bot) ? XSTYPE_TRUE : XSTYPE_FALSE)); acct = xs_dict_append(acct, "emojis", xs_stock(XSTYPE_LIST)); xs *src = xs_json_loads("{\"privacy\":\"public\", \"language\":\"en\"," "\"follow_requests_count\": 0," "\"sensitive\":false,\"fields\":[],\"note\":\"\"}"); /* some apps take the note from the source object */ src = xs_dict_set(src, "note", xs_dict_get(snac.config, "bio")); src = xs_dict_set(src, "privacy", xs_type(xs_dict_get(snac.config, "private")) == XSTYPE_TRUE ? "private" : "public"); const xs_str *cw = xs_dict_get(snac.config, "cw"); src = xs_dict_set(src, "sensitive", strcmp(cw, "open") == 0 ? xs_stock(XSTYPE_TRUE) : xs_stock(XSTYPE_FALSE)); src = xs_dict_set(src, "bot", xs_stock(xs_is_true(bot) ? XSTYPE_TRUE : XSTYPE_FALSE)); xs *avatar = NULL; const char *av = xs_dict_get(snac.config, "avatar"); if (xs_is_null(av) || *av == '\0') avatar = xs_fmt("%s/susie.png", srv_baseurl); else avatar = xs_dup(av); acct = xs_dict_append(acct, "avatar", avatar); acct = xs_dict_append(acct, "avatar_static", avatar); xs *header = NULL; const char *hd = xs_dict_get(snac.config, "header"); if (!xs_is_null(hd)) header = xs_dup(hd); else header = xs_str_new(NULL); acct = xs_dict_append(acct, "header", header); acct = xs_dict_append(acct, "header_static", header); const xs_dict *metadata = xs_dict_get(snac.config, "metadata"); if (xs_type(metadata) == XSTYPE_DICT) { xs *fields = xs_list_new(); const xs_str *k; const xs_str *v; xs_dict *val_links = snac.links; if (xs_is_null(val_links)) val_links = xs_stock(XSTYPE_DICT); int c = 0; while (xs_dict_next(metadata, &k, &v, &c)) { xs *val_date = NULL; const xs_number *verified_time = xs_dict_get(val_links, v); if (xs_type(verified_time) == XSTYPE_NUMBER) { time_t t = xs_number_get(verified_time); if (t > 0) val_date = xs_str_utctime(t, ISO_DATE_SPEC); } xs *d = xs_dict_new(); d = xs_dict_append(d, "name", k); d = xs_dict_append(d, "value", v); d = xs_dict_append(d, "verified_at", xs_type(val_date) == XSTYPE_STRING && *val_date ? val_date : xs_stock(XSTYPE_NULL)); fields = xs_list_append(fields, d); } acct = xs_dict_set(acct, "fields", fields); /* some apps take the fields from the source object */ src = xs_dict_set(src, "fields", fields); } acct = xs_dict_append(acct, "source", src); acct = xs_dict_append(acct, "followers_count", xs_stock(0)); acct = xs_dict_append(acct, "following_count", xs_stock(0)); acct = xs_dict_append(acct, "statuses_count", xs_stock(0)); /* does this user want to publish their contact metrics? */ if (xs_is_true(xs_dict_get(snac.config, "show_contact_metrics"))) { xs *fwing = following_list(&snac); xs *fwers = follower_list(&snac); xs *ni = xs_number_new(xs_list_len(fwing)); xs *ne = xs_number_new(xs_list_len(fwers)); acct = xs_dict_append(acct, "followers_count", ne); acct = xs_dict_append(acct, "following_count", ni); } *body = xs_json_dumps(acct, 4); *ctype = "application/json"; *status = HTTP_STATUS_OK; } xs_list *mastoapi_timeline(snac *user, const xs_dict *args, const char *index_fn) { xs_list *out = xs_list_new(); FILE *f; char md5[MD5_HEX_SIZE]; if (dbglevel) { xs *js = xs_json_dumps(args, 0); srv_debug(1, xs_fmt("mastoapi_timeline args %s", js)); } if ((f = fopen(index_fn, "r")) == NULL) return out; const char *max_id = xs_dict_get(args, "max_id"); const char *since_id = xs_dict_get(args, "since_id"); const char *min_id = xs_dict_get(args, "min_id"); /* unsupported old-to-new navigation */ const char *limit_s = xs_dict_get(args, "limit"); int limit = 0; int cnt = 0; if (!xs_is_null(limit_s)) limit = atoi(limit_s); if (limit == 0) limit = 20; if (min_id == NULL && index_desc_first(f, md5, 0)) { do { xs *msg = NULL; /* only return entries older that max_id */ if (max_id) { if (strcmp(md5, MID_TO_MD5(max_id)) == 0) max_id = NULL; continue; } /* only returns entries newer than since_id */ if (since_id) { if (strcmp(md5, MID_TO_MD5(since_id)) == 0) break; } /* get the entry */ if (user) { if (!valid_status(timeline_get_by_md5(user, md5, &msg))) continue; } else { if (!valid_status(object_get_by_md5(md5, &msg))) continue; } /* discard non-Notes */ const char *id = xs_dict_get(msg, "id"); const char *type = xs_dict_get(msg, "type"); if (!xs_match(type, POSTLIKE_OBJECT_TYPE)) continue; if (id && is_instance_blocked(id)) continue; const char *from = NULL; if (strcmp(type, "Page") == 0) from = xs_dict_get(msg, "audience"); if (from == NULL) from = get_atto(msg); if (from == NULL) continue; if (user) { /* is this message from a person we don't follow? */ if (strcmp(from, user->actor) && !following_check(user, from)) { /* discard if it was not boosted */ xs *idx = object_announces(id); if (xs_list_len(idx) == 0) continue; } /* discard notes from muted morons */ if (is_muted(user, from)) continue; /* discard hidden notes */ if (is_hidden(user, id)) continue; } else { /* skip non-public messages */ if (!is_msg_public(msg)) continue; /* discard messages from private users */ if (is_msg_from_private_user(msg)) continue; } /* if it has a name and it's not a Page or a Video, it's a poll vote, so discard it */ if (!xs_is_null(xs_dict_get(msg, "name")) && !xs_match(type, "Page|Video")) continue; /* convert the Note into a Mastodon status */ xs *st = mastoapi_status(user, msg); if (st != NULL) { out = xs_list_append(out, st); cnt++; } } while (cnt < limit && index_desc_next(f, md5)); } int more = index_desc_next(f, md5); fclose(f); srv_debug(1, xs_fmt("mastoapi_timeline ret %d%s", cnt, more ? " (+)" : "")); return out; } xs_str *timeline_link_header(const char *endpoint, xs_list *timeline) /* returns a Link header with paging information */ { xs_str *s = NULL; if (xs_list_len(timeline) == 0) return NULL; const xs_dict *first_st = xs_list_get(timeline, 0); const xs_dict *last_st = xs_list_get(timeline, -1); const char *first_id = xs_dict_get(first_st, "id"); const char *last_id = xs_dict_get(last_st, "id"); const char *host = xs_dict_get(srv_config, "host"); const char *protocol = xs_dict_get_def(srv_config, "protocol", "https"); s = xs_fmt( "<%s:/" "/%s%s?max_id=%s>; rel=\"next\", " "<%s:/" "/%s%s?since_id=%s>; rel=\"prev\"", protocol, host, endpoint, last_id, protocol, host, endpoint, first_id); srv_debug(1, xs_fmt("timeline_link_header %s", s)); return s; } int mastoapi_get_handler(const xs_dict *req, const char *q_path, char **body, int *b_size, char **ctype, xs_str **link) { (void)b_size; if (!xs_startswith(q_path, "/api/v1/") && !xs_startswith(q_path, "/api/v2/")) return 0; int status = HTTP_STATUS_NOT_FOUND; const xs_dict *args = xs_dict_get(req, "q_vars"); xs *cmd = xs_replace_n(q_path, "/api", "", 1); snac snac1 = {0}; int logged_in = process_auth_token(&snac1, req); if (strcmp(cmd, "/v1/accounts/verify_credentials") == 0) { /** **/ if (logged_in) { credentials_get(body, ctype, &status, snac1); } else { status = HTTP_STATUS_UNPROCESSABLE_CONTENT; // (no login) } } else if (strcmp(cmd, "/v1/accounts/relationships") == 0) { /** **/ /* find if an account is followed, blocked, etc. */ /* the account to get relationships about is in args "id[]" */ if (logged_in) { xs *res = xs_list_new(); const char *md5 = xs_dict_get(args, "id[]"); if (xs_is_null(md5)) md5 = xs_dict_get(args, "id"); if (!xs_is_null(md5)) { if (xs_type(md5) == XSTYPE_LIST) md5 = xs_list_get(md5, 0); xs *rel = mastoapi_relationship(&snac1, md5); if (rel != NULL) res = xs_list_append(res, rel); } *body = xs_json_dumps(res, 4); *ctype = "application/json"; status = HTTP_STATUS_OK; } else status = HTTP_STATUS_UNPROCESSABLE_CONTENT; } else if (strcmp(cmd, "/v1/accounts/lookup") == 0) { /** **/ /* lookup an account */ const char *acct = xs_dict_get(args, "acct"); if (!xs_is_null(acct)) { xs *s = xs_strip_chars_i(xs_dup(acct), "@"); xs *l = xs_split_n(s, "@", 1); const char *uid = xs_list_get(l, 0); const char *host = xs_list_get(l, 1); if (uid && (!host || strcmp(host, xs_dict_get(srv_config, "host")) == 0)) { snac user; if (user_open(&user, uid)) { xs *actor = msg_actor(&user); xs *macct = mastoapi_account(NULL, actor); *body = xs_json_dumps(macct, 4); *ctype = "application/json"; status = HTTP_STATUS_OK; user_free(&user); } } } } else if (xs_startswith(cmd, "/v1/accounts/")) { /** **/ /* account-related information */ xs *l = xs_split(cmd, "/"); const char *uid = xs_list_get(l, 3); const char *opt = xs_list_get(l, 4); if (uid != NULL) { snac snac2; xs *out = NULL; xs *actor = NULL; if (logged_in && strcmp(uid, "search") == 0) { /** **/ /* search for accounts starting with q */ const char *aq = xs_dict_get(args, "q"); if (!xs_is_null(aq)) { xs *q = xs_tolower_i(xs_dup(aq)); out = xs_list_new(); xs *wing = following_list(&snac1); xs *wers = follower_list(&snac1); xs *ulst = user_list(); xs_list *p; const xs_str *v; xs_set seen; xs_set_init(&seen); /* user relations */ xs_list *lsts[] = { wing, wers, NULL }; int n; for (n = 0; (p = lsts[n]) != NULL; n++) { while (xs_list_iter(&p, &v)) { /* already seen? skip */ if (xs_set_add(&seen, v) == 0) continue; xs *actor = NULL; if (valid_status(object_get(v, &actor))) { const char *uname = xs_dict_get(actor, "preferredUsername"); if (!xs_is_null(uname)) { xs *luname = xs_tolower_i(xs_dup(uname)); if (xs_startswith(luname, q)) { xs *acct = mastoapi_account(&snac1, actor); out = xs_list_append(out, acct); } } } } } /* local users */ p = ulst; while (xs_list_iter(&p, &v)) { snac user; /* skip this same user */ if (strcmp(v, xs_dict_get(snac1.config, "uid")) == 0) continue; /* skip if the uid does not start with the query */ xs *v2 = xs_tolower_i(xs_dup(v)); if (!xs_startswith(v2, q)) continue; if (user_open(&user, v)) { /* if it's not already seen, add it */ if (xs_set_add(&seen, user.actor) == 1) { xs *actor = msg_actor(&user); xs *acct = mastoapi_account(&snac1, actor); out = xs_list_append(out, acct); } user_free(&user); } } xs_set_free(&seen); } } else /* is it a local user? */ if (user_open(&snac2, uid) || user_open_by_md5(&snac2, uid)) { if (opt == NULL) { /* account information */ actor = msg_actor(&snac2); out = mastoapi_account(NULL, actor); } else if (strcmp(opt, "statuses") == 0) { /** **/ /* the public list of posts of a user */ xs *timeline = timeline_simple_list(&snac2, "public", 0, 256); xs_list *p = timeline; const xs_str *v; out = xs_list_new(); while (xs_list_iter(&p, &v)) { xs *msg = NULL; if (valid_status(timeline_get_by_md5(&snac2, v, &msg))) { /* add only posts by the author */ if (strcmp(xs_dict_get(msg, "type"), "Note") == 0 && xs_startswith(xs_dict_get(msg, "id"), snac2.actor)) { xs *st = mastoapi_status(&snac2, msg); if (st) out = xs_list_append(out, st); } } } } else if (strcmp(opt, "featured_tags") == 0) { /* snac doesn't have features tags, yet? */ /* implement empty response so apps like Tokodon don't show an error */ out = xs_list_new(); } else if (strcmp(opt, "following") == 0) { xs *wing = following_list(&snac1); out = xs_list_new(); int c = 0; const char *v; while (xs_list_next(wing, &v, &c)) { xs *actor = NULL; if (valid_status(object_get(v, &actor))) { xs *acct = mastoapi_account(NULL, actor); out = xs_list_append(out, acct); } } } else if (strcmp(opt, "followers") == 0) { out = xs_list_new(); } user_free(&snac2); } else { /* try the uid as the md5 of a possibly loaded actor */ if (logged_in && valid_status(object_get_by_md5(uid, &actor))) { if (opt == NULL) { /* account information */ out = mastoapi_account(&snac1, actor); } else if (strcmp(opt, "statuses") == 0) { /* we don't serve statuses of others; return the empty list */ out = xs_list_new(); } else if (strcmp(opt, "featured_tags") == 0) { /* snac doesn't have features tags, yet? */ /* implement empty response so apps like Tokodon don't show an error */ out = xs_list_new(); } } } if (out != NULL) { *body = xs_json_dumps(out, 4); *ctype = "application/json"; status = HTTP_STATUS_OK; } } } else if (strcmp(cmd, "/v1/timelines/home") == 0) { /** **/ /* the private timeline */ if (logged_in) { xs *ifn = user_index_fn(&snac1, "private"); xs *out = mastoapi_timeline(&snac1, args, ifn); *link = timeline_link_header("/api/v1/timelines/home", out); *body = xs_json_dumps(out, 4); *ctype = "application/json"; status = HTTP_STATUS_OK; srv_debug(2, xs_fmt("mastoapi timeline: returned %d entries", xs_list_len(out))); } else { status = HTTP_STATUS_UNAUTHORIZED; } } else if (strcmp(cmd, "/v1/timelines/public") == 0) { /** **/ /* the instance public timeline (public timelines for all users) */ xs *ifn = instance_index_fn(); xs *out = mastoapi_timeline(NULL, args, ifn); *body = xs_json_dumps(out, 4); *ctype = "application/json"; status = HTTP_STATUS_OK; } else if (xs_startswith(cmd, "/v1/timelines/tag/")) { /** **/ /* get the tag */ xs *l = xs_split(cmd, "/"); const char *tag = xs_list_get(l, -1); xs *ifn = tag_fn(tag); xs *out = mastoapi_timeline(NULL, args, ifn); *body = xs_json_dumps(out, 4); *ctype = "application/json"; status = HTTP_STATUS_OK; } else if (xs_startswith(cmd, "/v1/timelines/list/")) { /** **/ /* get the list id */ if (logged_in) { xs *l = xs_split(cmd, "/"); const char *list = xs_list_get(l, -1); xs *ifn = list_timeline_fn(&snac1, list); xs *out = mastoapi_timeline(NULL, args, ifn); *body = xs_json_dumps(out, 4); *ctype = "application/json"; status = HTTP_STATUS_OK; } else status = HTTP_STATUS_MISDIRECTED_REQUEST; } else if (strcmp(cmd, "/v1/conversations") == 0) { /** **/ /* TBD */ *body = xs_dup("[]"); *ctype = "application/json"; status = HTTP_STATUS_OK; } else if (strcmp(cmd, "/v1/notifications") == 0) { /** **/ if (logged_in) { xs *l = notify_list(&snac1, 0, 64); xs *out = xs_list_new(); const xs_dict *v; const xs_list *excl = xs_dict_get(args, "exclude_types[]"); const char *min_id = xs_dict_get(args, "min_id"); const char *max_id = xs_dict_get(args, "max_id"); if (dbglevel) { xs *js = xs_json_dumps(args, 0); srv_debug(1, xs_fmt("mastoapi_notifications args %s", js)); } xs_list_foreach(l, v) { xs *noti = notify_get(&snac1, v); if (noti == NULL) continue; const char *type = xs_dict_get(noti, "type"); const char *utype = xs_dict_get(noti, "utype"); const char *objid = xs_dict_get(noti, "objid"); const char *id = xs_dict_get(noti, "id"); xs *fid = xs_replace(id, ".", ""); xs *actor = NULL; xs *entry = NULL; if (!valid_status(actor_get(xs_dict_get(noti, "actor"), &actor))) continue; if (objid != NULL && !valid_status(object_get(objid, &entry))) continue; if (is_hidden(&snac1, objid)) continue; if (max_id) { if (strcmp(fid, max_id) == 0) max_id = NULL; continue; } if (min_id) { if (strcmp(fid, min_id) <= 0) { continue; } } /* convert the type */ if (strcmp(type, "Like") == 0 || strcmp(type, "EmojiReact") == 0) type = "favourite"; else if (strcmp(type, "Announce") == 0) type = "reblog"; else if (strcmp(type, "Follow") == 0) type = "follow"; else if (strcmp(type, "Create") == 0) type = "mention"; else if (strcmp(type, "Update") == 0 && strcmp(utype, "Question") == 0) type = "poll"; else continue; /* excluded type? */ if (!xs_is_null(excl) && xs_list_in(excl, type) != -1) continue; xs *mn = xs_dict_new(); mn = xs_dict_append(mn, "type", type); mn = xs_dict_append(mn, "id", fid); mn = xs_dict_append(mn, "created_at", xs_dict_get(noti, "date")); xs *acct = mastoapi_account(&snac1, actor); if (acct == NULL) continue; mn = xs_dict_append(mn, "account", acct); if (strcmp(type, "follow") != 0 && !xs_is_null(objid)) { xs *st = mastoapi_status(&snac1, entry); if (st) mn = xs_dict_append(mn, "status", st); } out = xs_list_append(out, mn); } srv_debug(1, xs_fmt("mastoapi_notifications count %d", xs_list_len(out))); *body = xs_json_dumps(out, 4); *ctype = "application/json"; status = HTTP_STATUS_OK; } else status = HTTP_STATUS_UNAUTHORIZED; } else if (strcmp(cmd, "/v1/filters") == 0) { /** **/ /* snac will never have filters */ *body = xs_dup("[]"); *ctype = "application/json"; status = HTTP_STATUS_OK; } else if (strcmp(cmd, "/v2/filters") == 0) { /** **/ /* snac will never have filters * but still, without a v2 endpoint a short delay is introduced * in some apps */ *body = xs_dup("[]"); *ctype = "application/json"; status = HTTP_STATUS_OK; } else if (strcmp(cmd, "/v1/favourites") == 0) { /** **/ /* snac will never support a list of favourites */ *body = xs_dup("[]"); *ctype = "application/json"; status = HTTP_STATUS_OK; } else if (strcmp(cmd, "/v1/bookmarks") == 0) { /** **/ if (logged_in) { xs *ifn = bookmark_index_fn(&snac1); xs *out = mastoapi_timeline(&snac1, args, ifn); *body = xs_json_dumps(out, 4); *ctype = "application/json"; status = HTTP_STATUS_OK; } else status = HTTP_STATUS_UNAUTHORIZED; } else if (strcmp(cmd, "/v1/lists") == 0) { /** list of lists **/ if (logged_in) { xs *lol = list_maint(&snac1, NULL, 0); xs *l = xs_list_new(); int c = 0; const xs_list *li; while (xs_list_next(lol, &li, &c)) { xs *d = xs_dict_new(); d = xs_dict_append(d, "id", xs_list_get(li, 0)); d = xs_dict_append(d, "title", xs_list_get(li, 1)); d = xs_dict_append(d, "replies_policy", "list"); d = xs_dict_append(d, "exclusive", xs_stock(XSTYPE_FALSE)); l = xs_list_append(l, d); } *body = xs_json_dumps(l, 4); *ctype = "application/json"; status = HTTP_STATUS_OK; } else status = HTTP_STATUS_UNAUTHORIZED; } else if (xs_startswith(cmd, "/v1/lists/")) { /** list information **/ if (logged_in) { xs *l = xs_split(cmd, "/"); const char *p = xs_list_get(l, -1); if (p) { if (strcmp(p, "accounts") == 0) { p = xs_list_get(l, -2); if (p && xs_is_hex(p)) { xs *actors = list_content(&snac1, p, NULL, 0); xs *out = xs_list_new(); int c = 0; const char *v; while (xs_list_next(actors, &v, &c)) { xs *actor = NULL; if (valid_status(object_get_by_md5(v, &actor))) { xs *acct = mastoapi_account(&snac1, actor); out = xs_list_append(out, acct); } } *body = xs_json_dumps(out, 4); *ctype = "application/json"; status = HTTP_STATUS_OK; } } else if (xs_is_hex(p)) { xs *out = xs_list_new(); xs *lol = list_maint(&snac1, NULL, 0); int c = 0; const xs_list *v; while (xs_list_next(lol, &v, &c)) { const char *id = xs_list_get(v, 0); if (id && strcmp(id, p) == 0) { xs *d = xs_dict_new(); d = xs_dict_append(d, "id", p); d = xs_dict_append(d, "title", xs_list_get(v, 1)); d = xs_dict_append(d, "replies_policy", "list"); d = xs_dict_append(d, "exclusive", xs_stock(XSTYPE_FALSE)); out = xs_dup(d); break; } } *body = xs_json_dumps(out, 4); *ctype = "application/json"; status = HTTP_STATUS_OK; } } } else status = HTTP_STATUS_UNAUTHORIZED; } else if (strcmp(cmd, "/v1/scheduled_statuses") == 0) { /** **/ /* snac does not schedule notes */ *body = xs_dup("[]"); *ctype = "application/json"; status = HTTP_STATUS_OK; } else if (strcmp(cmd, "/v1/follow_requests") == 0) { /** **/ /* snac does not support optional follow confirmations */ *body = xs_dup("[]"); *ctype = "application/json"; status = HTTP_STATUS_OK; } else if (strcmp(cmd, "/v1/announcements") == 0) { /** **/ if (logged_in) { xs *resp = xs_list_new(); double la = 0.0; xs *user_la = xs_dup(xs_dict_get(snac1.config, "last_announcement")); if (user_la != NULL) la = xs_number_get(user_la); xs *val_date = xs_str_utctime(la, ISO_DATE_SPEC); /* contrary to html, we always send the announcement and set the read flag instead */ const t_announcement *annce = announcement(la); if (annce != NULL && annce->text != NULL) { xs *an = xs_dict_new(); xs *id = xs_fmt("%d", annce->timestamp); xs *ct = xs_fmt("

", annce->text); an = xs_dict_set(an, "id", id); an = xs_dict_set(an, "content", ct); an = xs_dict_set(an, "starts_at", xs_stock(XSTYPE_NULL)); an = xs_dict_set(an, "ends_at", xs_stock(XSTYPE_NULL)); an = xs_dict_set(an, "all_day", xs_stock(XSTYPE_TRUE)); an = xs_dict_set(an, "published_at", val_date); an = xs_dict_set(an, "updated_at", val_date); an = xs_dict_set(an, "read", (annce->timestamp >= la) ? xs_stock(XSTYPE_FALSE) : xs_stock(XSTYPE_TRUE)); an = xs_dict_set(an, "mentions", xs_stock(XSTYPE_LIST)); an = xs_dict_set(an, "statuses", xs_stock(XSTYPE_LIST)); an = xs_dict_set(an, "tags", xs_stock(XSTYPE_LIST)); an = xs_dict_set(an, "emojis", xs_stock(XSTYPE_LIST)); an = xs_dict_set(an, "reactions", xs_stock(XSTYPE_LIST)); resp = xs_list_append(resp, an); } *body = xs_json_dumps(resp, 4); *ctype = "application/json"; status = HTTP_STATUS_OK; } } else if (strcmp(cmd, "/v1/custom_emojis") == 0) { /** **/ /* are you kidding me? */ *body = xs_dup("[]"); *ctype = "application/json"; status = HTTP_STATUS_OK; } else if (strcmp(cmd, "/v1/instance") == 0) { /** **/ /* returns an instance object */ xs *ins = xs_dict_new(); const char *host = xs_dict_get(srv_config, "host"); const char *title = xs_dict_get(srv_config, "title"); const char *sdesc = xs_dict_get(srv_config, "short_description"); ins = xs_dict_append(ins, "uri", host); ins = xs_dict_append(ins, "domain", host); ins = xs_dict_append(ins, "title", title && *title ? title : host); ins = xs_dict_append(ins, "version", "4.0.0 (not true; really " USER_AGENT ")"); ins = xs_dict_append(ins, "source_url", WHAT_IS_SNAC_URL); ins = xs_dict_append(ins, "description", host); ins = xs_dict_append(ins, "short_description", sdesc && *sdesc ? sdesc : host); xs *susie = xs_fmt("%s/susie.png", srv_baseurl); ins = xs_dict_append(ins, "thumbnail", susie); const char *v = xs_dict_get(srv_config, "admin_email"); if (xs_is_null(v) || *v == '\0') v = "admin@localhost"; ins = xs_dict_append(ins, "email", v); ins = xs_dict_append(ins, "rules", xs_stock(XSTYPE_LIST)); xs *l1 = xs_list_append(xs_list_new(), "en"); ins = xs_dict_append(ins, "languages", l1); xs *wss = xs_fmt("wss:/" "/%s", xs_dict_get(srv_config, "host")); xs *urls = xs_dict_new(); urls = xs_dict_append(urls, "streaming_api", wss); ins = xs_dict_append(ins, "urls", urls); xs *d2 = xs_dict_append(xs_dict_new(), "user_count", xs_stock(0)); d2 = xs_dict_append(d2, "status_count", xs_stock(0)); d2 = xs_dict_append(d2, "domain_count", xs_stock(0)); ins = xs_dict_append(ins, "stats", d2); ins = xs_dict_append(ins, "registrations", xs_stock(XSTYPE_FALSE)); ins = xs_dict_append(ins, "approval_required", xs_stock(XSTYPE_FALSE)); ins = xs_dict_append(ins, "invites_enabled", xs_stock(XSTYPE_FALSE)); xs *cfg = xs_dict_new(); { xs *d11 = xs_json_loads("{\"characters_reserved_per_url\":32," "\"max_characters\":100000,\"max_media_attachments\":8}"); cfg = xs_dict_append(cfg, "statuses", d11); xs *d12 = xs_json_loads("{\"max_featured_tags\":0}"); cfg = xs_dict_append(cfg, "accounts", d12); xs *d13 = xs_json_loads("{\"image_matrix_limit\":33177600," "\"image_size_limit\":16777216," "\"video_frame_rate_limit\":120," "\"video_matrix_limit\":8294400," "\"video_size_limit\":103809024}" ); { /* get the supported mime types from the internal list */ const char **p = xs_mime_types; xs_set mtypes; xs_set_init(&mtypes); while (*p) { const char *type = p[1]; if (xs_startswith(type, "image/") || xs_startswith(type, "video/") || xs_startswith(type, "audio/")) xs_set_add(&mtypes, type); p += 2; } xs *l = xs_set_result(&mtypes); d13 = xs_dict_append(d13, "supported_mime_types", l); } cfg = xs_dict_append(cfg, "media_attachments", d13); xs *d14 = xs_json_loads("{\"max_characters_per_option\":50," "\"max_expiration\":2629746," "\"max_options\":8,\"min_expiration\":300}"); cfg = xs_dict_append(cfg, "polls", d14); } ins = xs_dict_append(ins, "configuration", cfg); const char *admin_account = xs_dict_get(srv_config, "admin_account"); if (!xs_is_null(admin_account) && *admin_account) { snac admin; if (user_open(&admin, admin_account)) { xs *actor = msg_actor(&admin); xs *acct = mastoapi_account(NULL, actor); ins = xs_dict_append(ins, "contact_account", acct); user_free(&admin); } } *body = xs_json_dumps(ins, 4); *ctype = "application/json"; status = HTTP_STATUS_OK; } else if (xs_startswith(cmd, "/v1/statuses/")) { /** **/ /* information about a status */ if (logged_in) { xs *l = xs_split(cmd, "/"); const char *id = xs_list_get(l, 3); const char *op = xs_list_get(l, 4); if (!xs_is_null(id)) { xs *msg = NULL; xs *out = NULL; /* skip the 'fake' part of the id */ id = MID_TO_MD5(id); if (valid_status(object_get_by_md5(id, &msg))) { if (op == NULL) { if (!is_muted(&snac1, get_atto(msg))) { /* return the status itself */ out = mastoapi_status(&snac1, msg); } } else if (strcmp(op, "context") == 0) { /** **/ /* return ancestors and children */ xs *anc = xs_list_new(); xs *des = xs_list_new(); xs_list *p; const xs_str *v; char pid[MD5_HEX_SIZE]; /* build the [grand]parent list, moving up */ strncpy(pid, id, sizeof(pid)); while (object_parent(pid, pid)) { xs *m2 = NULL; if (valid_status(timeline_get_by_md5(&snac1, pid, &m2))) { xs *st = mastoapi_status(&snac1, m2); if (st) anc = xs_list_insert(anc, 0, st); } else break; } /* build the children list */ xs *children = object_children(xs_dict_get(msg, "id")); p = children; while (xs_list_iter(&p, &v)) { xs *m2 = NULL; if (valid_status(timeline_get_by_md5(&snac1, v, &m2))) { if (xs_is_null(xs_dict_get(m2, "name"))) { xs *st = mastoapi_status(&snac1, m2); if (st) des = xs_list_append(des, st); } } } out = xs_dict_new(); out = xs_dict_append(out, "ancestors", anc); out = xs_dict_append(out, "descendants", des); } else if (strcmp(op, "reblogged_by") == 0 || /** **/ strcmp(op, "favourited_by") == 0) { /** **/ /* return the list of people who liked or boosted this */ out = xs_list_new(); xs *l = NULL; if (op[0] == 'r') l = object_announces(xs_dict_get(msg, "id")); else l = object_likes(xs_dict_get(msg, "id")); xs_list *p = l; const xs_str *v; while (xs_list_iter(&p, &v)) { xs *actor2 = NULL; if (valid_status(object_get_by_md5(v, &actor2))) { xs *acct2 = mastoapi_account(&snac1, actor2); out = xs_list_append(out, acct2); } } } else if (strcmp(op, "source") == 0) { /** **/ out = xs_dict_new(); /* get the mastoapi status id */ out = xs_dict_append(out, "id", xs_list_get(l, 3)); out = xs_dict_append(out, "text", xs_dict_get(msg, "sourceContent")); out = xs_dict_append(out, "spoiler_text", xs_dict_get(msg, "summary")); } } else srv_debug(1, xs_fmt("mastoapi status: bad id %s", id)); if (out != NULL) { *body = xs_json_dumps(out, 4); *ctype = "application/json"; status = HTTP_STATUS_OK; } } } else status = HTTP_STATUS_UNAUTHORIZED; } else if (strcmp(cmd, "/v1/preferences") == 0) { /** **/ *body = xs_dup("{}"); *ctype = "application/json"; status = HTTP_STATUS_OK; } else if (strcmp(cmd, "/v1/markers") == 0) { /** **/ if (logged_in) { const xs_list *timeline = xs_dict_get(args, "timeline[]"); xs_str *json = NULL; if (!xs_is_null(timeline)) json = xs_json_dumps(markers_get(&snac1, timeline), 4); if (!xs_is_null(json)) *body = json; else *body = xs_dup("{}"); *ctype = "application/json"; status = HTTP_STATUS_OK; } else status = HTTP_STATUS_UNAUTHORIZED; } else if (strcmp(cmd, "/v1/followed_tags") == 0) { /** **/ *body = xs_dup("[]"); *ctype = "application/json"; status = HTTP_STATUS_OK; } else if (strcmp(cmd, "/v1/trends/tags") == 0) { /** **/ *body = xs_dup("[]"); *ctype = "application/json"; status = HTTP_STATUS_OK; } else if (strcmp(cmd, "/v1/trends/statuses") == 0) { /** **/ *body = xs_dup("[]"); *ctype = "application/json"; status = HTTP_STATUS_OK; } else if (strcmp(cmd, "/v2/search") == 0) { /** **/ if (logged_in) { const char *q = xs_dict_get(args, "q"); const char *type = xs_dict_get(args, "type"); const char *offset = xs_dict_get(args, "offset"); xs *acl = xs_list_new(); xs *stl = xs_list_new(); xs *htl = xs_list_new(); xs *res = xs_dict_new(); if (xs_is_null(offset) || strcmp(offset, "0") == 0) { /* reply something only for offset 0; otherwise, apps like Tusky keep asking again and again */ if (!xs_is_null(q)) { if (xs_is_null(type) || strcmp(type, "accounts") == 0) { /* do a webfinger query */ char *actor = NULL; char *user = NULL; if (valid_status(webfinger_request(q, &actor, &user)) && actor) { xs *actor_o = NULL; if (valid_status(actor_request(&snac1, actor, &actor_o))) { xs *acct = mastoapi_account(NULL, actor_o); acl = xs_list_append(acl, acct); if (!object_here(actor)) object_add(actor, actor_o); } } } if (xs_is_null(type) || strcmp(type, "hashtags") == 0) { /* search this tag */ xs *tl = tag_search((char *)q, 0, 1); if (xs_list_len(tl)) { xs *d = xs_dict_new(); d = xs_dict_append(d, "name", q); xs *url = xs_fmt("%s?t=%s", srv_baseurl, q); d = xs_dict_append(d, "url", url); d = xs_dict_append(d, "history", xs_stock(XSTYPE_LIST)); htl = xs_list_append(htl, d); } } if (xs_is_null(type) || strcmp(type, "statuses") == 0) { int to = 0; int cnt = 40; xs *tl = content_search(&snac1, q, 1, 0, cnt, 0, &to); int c = 0; const char *v; while (xs_list_next(tl, &v, &c) && --cnt) { xs *post = NULL; if (!valid_status(timeline_get_by_md5(&snac1, v, &post))) continue; xs *s = mastoapi_status(&snac1, post); if (!xs_is_null(s)) stl = xs_list_append(stl, s); } } } } res = xs_dict_append(res, "accounts", acl); res = xs_dict_append(res, "statuses", stl); res = xs_dict_append(res, "hashtags", htl); *body = xs_json_dumps(res, 4); *ctype = "application/json"; status = HTTP_STATUS_OK; } else status = HTTP_STATUS_UNAUTHORIZED; } /* user cleanup */ if (logged_in) user_free(&snac1); srv_debug(1, xs_fmt("mastoapi_get_handler %s %d", q_path, status)); return status; } int mastoapi_post_handler(const xs_dict *req, const char *q_path, const char *payload, int p_size, char **body, int *b_size, char **ctype) { (void)p_size; (void)b_size; if (!xs_startswith(q_path, "/api/v1/") && !xs_startswith(q_path, "/api/v2/")) return 0; int status = HTTP_STATUS_NOT_FOUND; xs *args = NULL; const char *i_ctype = xs_dict_get(req, "content-type"); if (i_ctype && xs_startswith(i_ctype, "application/json")) { if (!xs_is_null(payload)) args = xs_json_loads(payload); } else if (i_ctype && xs_startswith(i_ctype, "application/x-www-form-urlencoded")) { // Some apps send form data instead of json so we should cater for those if (!xs_is_null(payload)) { args = xs_url_vars(payload); } } else args = xs_dup(xs_dict_get(req, "p_vars")); if (args == NULL) return HTTP_STATUS_BAD_REQUEST; xs *cmd = xs_replace_n(q_path, "/api", "", 1); snac snac = {0}; int logged_in = process_auth_token(&snac, req); if (strcmp(cmd, "/v1/apps") == 0) { /** **/ const char *name = xs_dict_get(args, "client_name"); const char *ruri = xs_dict_get(args, "redirect_uris"); const char *scope = xs_dict_get(args, "scope"); /* Ice Cubes sends these values as query parameters, so try these */ if (name == NULL && ruri == NULL && scope == NULL) { args = xs_dup(xs_dict_get(req, "q_vars")); name = xs_dict_get(args, "client_name"); ruri = xs_dict_get(args, "redirect_uris"); scope = xs_dict_get(args, "scope"); } if (xs_type(ruri) == XSTYPE_LIST) ruri = xs_dict_get(ruri, 0); if (name && ruri) { xs *app = xs_dict_new(); xs *id = xs_replace_i(tid(0), ".", ""); xs *csec = random_str(); xs *vkey = random_str(); xs *cid = NULL; /* pick a non-existent random cid */ for (;;) { cid = random_str(); xs *p_app = app_get(cid); if (p_app == NULL) break; xs_free(cid); } app = xs_dict_append(app, "name", name); app = xs_dict_append(app, "redirect_uri", ruri); app = xs_dict_append(app, "client_id", cid); app = xs_dict_append(app, "client_secret", csec); app = xs_dict_append(app, "vapid_key", vkey); app = xs_dict_append(app, "id", id); *body = xs_json_dumps(app, 4); *ctype = "application/json"; status = HTTP_STATUS_OK; app = xs_dict_append(app, "code", ""); if (scope) app = xs_dict_append(app, "scope", scope); app_add(cid, app); srv_debug(1, xs_fmt("mastoapi apps: new app %s", cid)); } } else if (strcmp(cmd, "/v1/statuses") == 0) { /** **/ if (logged_in) { /* post a new Note */ const char *content = xs_dict_get(args, "status"); const char *mid = xs_dict_get(args, "in_reply_to_id"); const char *visibility = xs_dict_get(args, "visibility"); const char *summary = xs_dict_get(args, "spoiler_text"); const char *media_ids = xs_dict_get(args, "media_ids"); if (xs_is_null(media_ids)) media_ids = xs_dict_get(args, "media_ids[]"); if (xs_is_null(media_ids)) media_ids = xs_dict_get(args, "media_ids"); if (xs_is_null(visibility)) visibility = "public"; xs *attach_list = xs_list_new(); xs *irt = NULL; /* is it a reply? */ if (mid != NULL) { xs *r_msg = NULL; const char *md5 = MID_TO_MD5(mid); if (valid_status(object_get_by_md5(md5, &r_msg))) irt = xs_dup(xs_dict_get(r_msg, "id")); } /* does it have attachments? */ if (!xs_is_null(media_ids)) { xs *mi = NULL; if (xs_type(media_ids) == XSTYPE_LIST) mi = xs_dup(media_ids); else { mi = xs_list_new(); mi = xs_list_append(mi, media_ids); } xs_list *p = mi; const xs_str *v; while (xs_list_iter(&p, &v)) { xs *l = xs_list_new(); xs *url = xs_fmt("%s/s/%s", snac.actor, v); xs *desc = static_get_meta(&snac, v); l = xs_list_append(l, url); l = xs_list_append(l, desc); attach_list = xs_list_append(attach_list, l); } } /* prepare the message */ xs *msg = msg_note(&snac, content, NULL, irt, attach_list, strcmp(visibility, "public") == 0 ? 0 : 1); if (!xs_is_null(summary) && *summary) { msg = xs_dict_set(msg, "sensitive", xs_stock(XSTYPE_TRUE)); msg = xs_dict_set(msg, "summary", summary); } /* store */ timeline_add(&snac, xs_dict_get(msg, "id"), msg); /* 'Create' message */ xs *c_msg = msg_create(&snac, msg); enqueue_message(&snac, c_msg); timeline_touch(&snac); /* convert to a mastodon status as a response code */ xs *st = mastoapi_status(&snac, msg); *body = xs_json_dumps(st, 4); *ctype = "application/json"; status = HTTP_STATUS_OK; } else status = HTTP_STATUS_UNAUTHORIZED; } else if (xs_startswith(cmd, "/v1/statuses")) { /** **/ if (logged_in) { /* operations on a status */ xs *l = xs_split(cmd, "/"); const char *mid = xs_list_get(l, 3); const char *op = xs_list_get(l, 4); if (!xs_is_null(mid)) { xs *msg = NULL; xs *out = NULL; /* skip the 'fake' part of the id */ mid = MID_TO_MD5(mid); if (valid_status(timeline_get_by_md5(&snac, mid, &msg))) { const char *id = xs_dict_get(msg, "id"); if (op == NULL) { /* no operation (?) */ } else if (strcmp(op, "favourite") == 0) { /** **/ xs *n_msg = msg_admiration(&snac, id, "Like"); if (n_msg != NULL) { enqueue_message(&snac, n_msg); timeline_admire(&snac, xs_dict_get(n_msg, "object"), snac.actor, 1); out = mastoapi_status(&snac, msg); } } else if (strcmp(op, "unfavourite") == 0) { /** **/ xs *n_msg = msg_repulsion(&snac, id, "Like"); if (n_msg != NULL) { enqueue_message(&snac, n_msg); out = mastoapi_status(&snac, msg); } } else if (strcmp(op, "reblog") == 0) { /** **/ xs *n_msg = msg_admiration(&snac, id, "Announce"); if (n_msg != NULL) { enqueue_message(&snac, n_msg); timeline_admire(&snac, xs_dict_get(n_msg, "object"), snac.actor, 0); out = mastoapi_status(&snac, msg); } } else if (strcmp(op, "unreblog") == 0) { /** **/ xs *n_msg = msg_repulsion(&snac, id, "Announce"); if (n_msg != NULL) { enqueue_message(&snac, n_msg); out = mastoapi_status(&snac, msg); } } else if (strcmp(op, "bookmark") == 0) { /** **/ /* bookmark this message */ if (bookmark(&snac, id) == 0) out = mastoapi_status(&snac, msg); else status = HTTP_STATUS_UNPROCESSABLE_CONTENT; } else if (strcmp(op, "unbookmark") == 0) { /** **/ /* unbookmark this message */ unbookmark(&snac, id); out = mastoapi_status(&snac, msg); } else if (strcmp(op, "pin") == 0) { /** **/ /* pin this message */ if (pin(&snac, id) == 0) out = mastoapi_status(&snac, msg); else status = HTTP_STATUS_UNPROCESSABLE_CONTENT; } else if (strcmp(op, "unpin") == 0) { /** **/ /* unpin this message */ unpin(&snac, id); out = mastoapi_status(&snac, msg); } else if (strcmp(op, "mute") == 0) { /** **/ /* Mastodon's mute is snac's hide */ } else if (strcmp(op, "unmute") == 0) { /** **/ /* Mastodon's unmute is snac's unhide */ } } if (out != NULL) { *body = xs_json_dumps(out, 4); *ctype = "application/json"; status = HTTP_STATUS_OK; } } } else status = HTTP_STATUS_UNAUTHORIZED; } else if (strcmp(cmd, "/v1/notifications/clear") == 0) { /** **/ if (logged_in) { notify_clear(&snac); timeline_touch(&snac); *body = xs_dup("{}"); *ctype = "application/json"; status = HTTP_STATUS_OK; } else status = HTTP_STATUS_UNAUTHORIZED; } else if (strcmp(cmd, "/v1/push/subscription") == 0) { /** **/ /* I don't know what I'm doing */ if (logged_in) { const char *v; xs *wpush = xs_dict_new(); wpush = xs_dict_append(wpush, "id", "1"); v = xs_dict_get(args, "data"); v = xs_dict_get(v, "alerts"); wpush = xs_dict_append(wpush, "alerts", v); v = xs_dict_get(args, "subscription"); v = xs_dict_get(v, "endpoint"); wpush = xs_dict_append(wpush, "endpoint", v); xs *server_key = random_str(); wpush = xs_dict_append(wpush, "server_key", server_key); *body = xs_json_dumps(wpush, 4); *ctype = "application/json"; status = HTTP_STATUS_OK; } else status = HTTP_STATUS_UNAUTHORIZED; } else if (strcmp(cmd, "/v1/media") == 0 || strcmp(cmd, "/v2/media") == 0) { /** **/ if (logged_in) { const xs_list *file = xs_dict_get(args, "file"); const char *desc = xs_dict_get(args, "description"); if (xs_is_null(desc)) desc = ""; status = HTTP_STATUS_BAD_REQUEST; if (xs_type(file) == XSTYPE_LIST) { const char *fn = xs_list_get(file, 0); if (*fn != '\0') { char *ext = strrchr(fn, '.'); xs *hash = xs_md5_hex(fn, strlen(fn)); xs *id = xs_fmt("%s%s", hash, ext); xs *url = xs_fmt("%s/s/%s", snac.actor, id); int fo = xs_number_get(xs_list_get(file, 1)); int fs = xs_number_get(xs_list_get(file, 2)); /* store */ static_put(&snac, id, payload + fo, fs); static_put_meta(&snac, id, desc); /* prepare a response */ xs *rsp = xs_dict_new(); rsp = xs_dict_append(rsp, "id", id); rsp = xs_dict_append(rsp, "type", "image"); rsp = xs_dict_append(rsp, "url", url); rsp = xs_dict_append(rsp, "preview_url", url); rsp = xs_dict_append(rsp, "remote_url", url); rsp = xs_dict_append(rsp, "description", desc); *body = xs_json_dumps(rsp, 4); *ctype = "application/json"; status = HTTP_STATUS_OK; } } } else status = HTTP_STATUS_UNAUTHORIZED; } else if (xs_startswith(cmd, "/v1/accounts")) { /** **/ if (logged_in) { /* account-related information */ xs *l = xs_split(cmd, "/"); const char *md5 = xs_list_get(l, 3); const char *opt = xs_list_get(l, 4); xs *rsp = NULL; if (!xs_is_null(md5) && *md5) { xs *actor_o = NULL; if (xs_is_null(opt)) { /* ? */ } else if (strcmp(opt, "follow") == 0) { /** **/ if (valid_status(object_get_by_md5(md5, &actor_o))) { const char *actor = xs_dict_get(actor_o, "id"); xs *msg = msg_follow(&snac, actor); if (msg != NULL) { /* reload the actor from the message, in may be different */ actor = xs_dict_get(msg, "object"); following_add(&snac, actor, msg); enqueue_output_by_actor(&snac, msg, actor, 0); rsp = mastoapi_relationship(&snac, md5); } } } else if (strcmp(opt, "unfollow") == 0) { /** **/ if (valid_status(object_get_by_md5(md5, &actor_o))) { const char *actor = xs_dict_get(actor_o, "id"); /* get the following object */ xs *object = NULL; if (valid_status(following_get(&snac, actor, &object))) { xs *msg = msg_undo(&snac, xs_dict_get(object, "object")); following_del(&snac, actor); enqueue_output_by_actor(&snac, msg, actor, 0); rsp = mastoapi_relationship(&snac, md5); } } } else if (strcmp(opt, "block") == 0) { /** **/ if (valid_status(object_get_by_md5(md5, &actor_o))) { const char *actor = xs_dict_get(actor_o, "id"); mute(&snac, actor); rsp = mastoapi_relationship(&snac, md5); } } else if (strcmp(opt, "unblock") == 0) { /** **/ if (valid_status(object_get_by_md5(md5, &actor_o))) { const char *actor = xs_dict_get(actor_o, "id"); unmute(&snac, actor); rsp = mastoapi_relationship(&snac, md5); } } } if (rsp != NULL) { *body = xs_json_dumps(rsp, 4); *ctype = "application/json"; status = HTTP_STATUS_OK; } } else status = HTTP_STATUS_UNAUTHORIZED; } else if (xs_startswith(cmd, "/v1/polls")) { /** **/ if (logged_in) { /* operations on a status */ xs *l = xs_split(cmd, "/"); const char *mid = xs_list_get(l, 3); const char *op = xs_list_get(l, 4); if (!xs_is_null(mid)) { xs *msg = NULL; xs *out = NULL; /* skip the 'fake' part of the id */ mid = MID_TO_MD5(mid); if (valid_status(timeline_get_by_md5(&snac, mid, &msg))) { const char *id = xs_dict_get(msg, "id"); const char *atto = get_atto(msg); const xs_list *opts = xs_dict_get(msg, "oneOf"); if (opts == NULL) opts = xs_dict_get(msg, "anyOf"); if (op == NULL) { } else if (strcmp(op, "votes") == 0) { const xs_list *choices = xs_dict_get(args, "choices[]"); if (xs_is_null(choices)) choices = xs_dict_get(args, "choices"); if (xs_type(choices) == XSTYPE_LIST) { const xs_str *v; int c = 0; while (xs_list_next(choices, &v, &c)) { int io = atoi(v); const xs_dict *o = xs_list_get(opts, io); if (o) { const char *name = xs_dict_get(o, "name"); xs *msg = msg_note(&snac, "", atto, (char *)id, NULL, 1); msg = xs_dict_append(msg, "name", name); xs *c_msg = msg_create(&snac, msg); enqueue_message(&snac, c_msg); timeline_add(&snac, xs_dict_get(msg, "id"), msg); } } out = mastoapi_poll(&snac, msg); } } } if (out != NULL) { *body = xs_json_dumps(out, 4); *ctype = "application/json"; status = HTTP_STATUS_OK; } } } else status = HTTP_STATUS_UNAUTHORIZED; } else if (strcmp(cmd, "/v1/lists") == 0) { if (logged_in) { const char *title = xs_dict_get(args, "title"); if (xs_type(title) == XSTYPE_STRING) { /* add the list */ xs *out = xs_dict_new(); xs *lid = list_maint(&snac, title, 1); if (!xs_is_null(lid)) { out = xs_dict_append(out, "id", lid); out = xs_dict_append(out, "title", title); out = xs_dict_append(out, "replies_policy", xs_dict_get_def(args, "replies_policy", "list")); out = xs_dict_append(out, "exclusive", xs_stock(XSTYPE_FALSE)); status = HTTP_STATUS_OK; } else { out = xs_dict_append(out, "error", "cannot create list"); status = HTTP_STATUS_UNPROCESSABLE_CONTENT; } *body = xs_json_dumps(out, 4); *ctype = "application/json"; } else status = HTTP_STATUS_UNPROCESSABLE_CONTENT; } } else if (xs_startswith(cmd, "/v1/lists/")) { /** list maintenance **/ if (logged_in) { xs *l = xs_split(cmd, "/"); const char *op = xs_list_get(l, -1); const char *id = xs_list_get(l, -2); if (op && id && xs_is_hex(id)) { if (strcmp(op, "accounts") == 0) { const xs_list *accts = xs_dict_get(args, "account_ids[]"); if (xs_is_null(accts)) accts = xs_dict_get(args, "account_ids"); int c = 0; const char *v; while (xs_list_next(accts, &v, &c)) { list_content(&snac, id, v, 1); } xs *out = xs_dict_new(); *body = xs_json_dumps(out, 4); *ctype = "application/json"; status = HTTP_STATUS_OK; } } } } else if (strcmp(cmd, "/v1/markers") == 0) { /** **/ xs_str *json = NULL; if (logged_in) { const xs_str *home_marker = xs_dict_get(args, "home[last_read_id]"); if (xs_is_null(home_marker)) { const xs_dict *home = xs_dict_get(args, "home"); if (!xs_is_null(home)) home_marker = xs_dict_get(home, "last_read_id"); } const xs_str *notify_marker = xs_dict_get(args, "notifications[last_read_id]"); if (xs_is_null(notify_marker)) { const xs_dict *notify = xs_dict_get(args, "notifications"); if (!xs_is_null(notify)) notify_marker = xs_dict_get(notify, "last_read_id"); } json = xs_json_dumps(markers_set(&snac, home_marker, notify_marker), 4); } if (!xs_is_null(json)) *body = json; else *body = xs_dup("{}"); *ctype = "application/json"; status = HTTP_STATUS_OK; } else status = HTTP_STATUS_UNPROCESSABLE_CONTENT; /* user cleanup */ if (logged_in) user_free(&snac); srv_debug(1, xs_fmt("mastoapi_post_handler %s %d", q_path, status)); return status; } 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) { (void)p_size; (void)body; (void)b_size; (void)ctype; if (!xs_startswith(q_path, "/api/v1/") && !xs_startswith(q_path, "/api/v2/")) return 0; int status = HTTP_STATUS_NOT_FOUND; xs *args = NULL; const char *i_ctype = xs_dict_get(req, "content-type"); if (i_ctype && xs_startswith(i_ctype, "application/json")) { if (!xs_is_null(payload)) args = xs_json_loads(payload); } else if (i_ctype && xs_startswith(i_ctype, "application/x-www-form-urlencoded")) { // Some apps send form data instead of json so we should cater for those if (!xs_is_null(payload)) { args = xs_url_vars(payload); } } else args = xs_dup(xs_dict_get(req, "p_vars")); if (args == NULL) return HTTP_STATUS_BAD_REQUEST; snac snac = {0}; int logged_in = process_auth_token(&snac, req); xs *cmd = xs_replace_n(q_path, "/api", "", 1); if (xs_startswith(cmd, "/v1/push/subscription") || xs_startswith(cmd, "/v2/push/subscription")) { /** **/ // pretend we deleted it, since it doesn't exist anyway status = HTTP_STATUS_OK; } else if (xs_startswith(cmd, "/v1/lists/")) { if (logged_in) { xs *l = xs_split(cmd, "/"); const char *p = xs_list_get(l, -1); if (p) { if (strcmp(p, "accounts") == 0) { /* delete account from list */ p = xs_list_get(l, -2); const xs_list *accts = xs_dict_get(args, "account_ids[]"); if (xs_is_null(accts)) accts = xs_dict_get(args, "account_ids"); int c = 0; const char *v; while (xs_list_next(accts, &v, &c)) { list_content(&snac, p, v, 2); } } else { /* delete list */ if (xs_is_hex(p)) { list_maint(&snac, p, 2); } } } *ctype = "application/json"; status = HTTP_STATUS_OK; } else status = HTTP_STATUS_UNAUTHORIZED; } /* user cleanup */ if (logged_in) user_free(&snac); srv_debug(1, xs_fmt("mastoapi_delete_handler %s %d", q_path, status)); return status; } 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) { (void)p_size; (void)b_size; if (!xs_startswith(q_path, "/api/v1/") && !xs_startswith(q_path, "/api/v2/")) return 0; int status = HTTP_STATUS_NOT_FOUND; xs *args = NULL; const char *i_ctype = xs_dict_get(req, "content-type"); if (i_ctype && xs_startswith(i_ctype, "application/json")) { if (!xs_is_null(payload)) args = xs_json_loads(payload); } else args = xs_dup(xs_dict_get(req, "p_vars")); if (args == NULL) return HTTP_STATUS_BAD_REQUEST; xs *cmd = xs_replace_n(q_path, "/api", "", 1); snac snac = {0}; int logged_in = process_auth_token(&snac, req); if (xs_startswith(cmd, "/v1/media") || xs_startswith(cmd, "/v2/media")) { /** **/ if (logged_in) { xs *l = xs_split(cmd, "/"); const char *stid = xs_list_get(l, 3); if (!xs_is_null(stid)) { const char *desc = xs_dict_get(args, "description"); /* set the image metadata */ static_put_meta(&snac, stid, desc); /* prepare a response */ xs *rsp = xs_dict_new(); xs *url = xs_fmt("%s/s/%s", snac.actor, stid); rsp = xs_dict_append(rsp, "id", stid); rsp = xs_dict_append(rsp, "type", "image"); rsp = xs_dict_append(rsp, "url", url); rsp = xs_dict_append(rsp, "preview_url", url); rsp = xs_dict_append(rsp, "remote_url", url); rsp = xs_dict_append(rsp, "description", desc); *body = xs_json_dumps(rsp, 4); *ctype = "application/json"; status = HTTP_STATUS_OK; } } else status = HTTP_STATUS_UNAUTHORIZED; } else if (xs_startswith(cmd, "/v1/statuses")) { if (logged_in) { xs *l = xs_split(cmd, "/"); const char *mid = xs_list_get(l, 3); if (!xs_is_null(mid)) { const char *md5 = MID_TO_MD5(mid); xs *rsp = NULL; xs *msg = NULL; if (valid_status(timeline_get_by_md5(&snac, md5, &msg))) { const char *content = xs_dict_get(args, "status"); xs *atls = xs_list_new(); xs *f_content = not_really_markdown(content, &atls, NULL); /* replace fields with new content */ msg = xs_dict_set(msg, "sourceContent", content); msg = xs_dict_set(msg, "content", f_content); xs *updated = xs_str_utctime(0, ISO_DATE_SPEC); msg = xs_dict_set(msg, "updated", updated); /* overwrite object, not updating the indexes */ object_add_ow(xs_dict_get(msg, "id"), msg); /* update message */ xs *c_msg = msg_update(&snac, msg); enqueue_message(&snac, c_msg); rsp = mastoapi_status(&snac, msg); } if (rsp != NULL) { *body = xs_json_dumps(rsp, 4); *ctype = "application/json"; status = HTTP_STATUS_OK; } } } else status = HTTP_STATUS_UNAUTHORIZED; } /* user cleanup */ if (logged_in) user_free(&snac); srv_debug(1, xs_fmt("mastoapi_put_handler %s %d", q_path, status)); return status; } void persist_image(const char *key, const xs_val *data, const char *payload, snac *snac) /* Store header or avatar */ { if (data != NULL) { if (xs_type(data) == XSTYPE_LIST) { const char *fn = xs_list_get(data, 0); if (fn && *fn) { const char *ext = strrchr(fn, '.'); /* Mona iOS sends always jpg as application/octet-stream with no filename */ if (ext == NULL || strcmp(fn, key) == 0) { ext = ".jpg"; } /* Make sure we have a unique file name, otherwise updated images will not be * re-loaded by clients. */ xs *rnd = random_str(); xs *hash = xs_md5_hex(rnd, strlen(rnd)); xs *id = xs_fmt("%s%s", hash, ext); xs *url = xs_fmt("%s/s/%s", snac->actor, id); int fo = xs_number_get(xs_list_get(data, 1)); int fs = xs_number_get(xs_list_get(data, 2)); /* store */ static_put(snac, id, payload + fo, fs); snac->config = xs_dict_set(snac->config, key, url); } } } } 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) /* Handle profile updates */ { (void)p_size; (void)b_size; if (!xs_startswith(q_path, "/api/v1/")) return 0; int status = HTTP_STATUS_NOT_FOUND; xs *args = NULL; const char *i_ctype = xs_dict_get(req, "content-type"); if (i_ctype && xs_startswith(i_ctype, "application/json")) { if (!xs_is_null(payload)) args = xs_json_loads(payload); } else if (i_ctype && xs_startswith(i_ctype, "application/x-www-form-urlencoded")) { // Some apps send form data instead of json so we should cater for those if (!xs_is_null(payload)) { args = xs_url_vars(payload); } } else args = xs_dup(xs_dict_get(req, "p_vars")); if (args == NULL) return HTTP_STATUS_BAD_REQUEST; xs *cmd = xs_replace_n(q_path, "/api", "", 1); snac snac = {0}; int logged_in = process_auth_token(&snac, req); if (xs_startswith(cmd, "/v1/accounts/update_credentials")) { /* Update user profile fields */ if (logged_in) { int c = 0; const xs_str *k; const xs_val *v; const xs_str *field_name = NULL; xs *new_fields = xs_dict_new(); while (xs_dict_next(args, &k, &v, &c)) { if (strcmp(k, "display_name") == 0) { if (v != NULL) snac.config = xs_dict_set(snac.config, "name", v); } else if (strcmp(k, "note") == 0) { if (v != NULL) snac.config = xs_dict_set(snac.config, "bio", v); } else if (strcmp(k, "bot") == 0) { if (v != NULL) snac.config = xs_dict_set(snac.config, "bot", (strcmp(v, "true") == 0 || strcmp(v, "1") == 0) ? xs_stock(XSTYPE_TRUE) : xs_stock(XSTYPE_FALSE)); } else if (strcmp(k, "source[sensitive]") == 0) { if (v != NULL) snac.config = xs_dict_set(snac.config, "cw", strcmp(v, "true") == 0 ? "open" : ""); } else if (strcmp(k, "source[privacy]") == 0) { if (v != NULL) snac.config = xs_dict_set(snac.config, "private", strcmp(v, "private") == 0 ? xs_stock(XSTYPE_TRUE) : xs_stock(XSTYPE_FALSE)); } else if (strcmp(k, "header") == 0) { persist_image("header", v, payload, &snac); } else if (strcmp(k, "avatar") == 0) { persist_image("avatar", v, payload, &snac); } else if (xs_between("fields_attributes", k, "[name]")) { field_name = strcmp(v, "") != 0 ? v : NULL; } else if (xs_between("fields_attributes", k, "[value]")) { if (field_name != NULL) { new_fields = xs_dict_set(new_fields, field_name, v); snac.config = xs_dict_set(snac.config, "metadata", new_fields); } } /* we don't have support for the following options, yet - discoverable (0/1) - locked (0/1) */ } /* Persist profile */ if (user_persist(&snac, 1) == 0) credentials_get(body, ctype, &status, snac); else status = HTTP_STATUS_INTERNAL_SERVER_ERROR; } else status = HTTP_STATUS_UNAUTHORIZED; } /* user cleanup */ if (logged_in) user_free(&snac); srv_debug(1, xs_fmt("mastoapi_patch_handler %s %d", q_path, status)); return status; } void mastoapi_purge(void) { xs *spec = xs_fmt("%s/app/" "*.json", srv_basedir); xs *files = xs_glob(spec, 1, 0); xs_list *p = files; const xs_str *v; time_t mt = time(NULL) - 3600; while (xs_list_iter(&p, &v)) { xs *cid = xs_replace(v, ".json", ""); xs *fn = _app_fn(cid); if (mtime(fn) < mt) { /* get the app */ xs *app = app_get(cid); if (app) { /* old apps with no uid are incomplete cruft */ const char *uid = xs_dict_get(app, "uid"); if (xs_is_null(uid) || *uid == '\0') { unlink(fn); srv_debug(2, xs_fmt("purged %s", fn)); } } } } } #endif /* #ifndef NO_MASTODON_API */