/* snac - A simple, minimalistic ActivityPub instance */ /* copyright (c) 2022 - 2023 grunfink / MIT license */ #include "xs.h" #include "xs_io.h" #include "xs_encdec.h" #include "xs_json.h" #include "xs_regex.h" #include "xs_set.h" #include "xs_openssl.h" #include "xs_time.h" #include "xs_mime.h" #include "snac.h" int login(snac *snac, char *headers) /* tries a login */ { int logged_in = 0; char *auth = xs_dict_get(headers, "authorization"); if (auth && xs_startswith(auth, "Basic ")) { int sz; xs *s1 = xs_crop_i(xs_dup(auth), 6, 0); xs *s2 = xs_base64_dec(s1, &sz); xs *l1 = xs_split_n(s2, ":", 1); if (xs_list_len(l1) == 2) { logged_in = check_password( xs_list_get(l1, 0), xs_list_get(l1, 1), xs_dict_get(snac->config, "passwd")); } } return logged_in; } d_char *html_actor_icon(snac *snac, d_char *os, char *actor, const char *date, const char *udate, const char *url, int priv) { xs *s = xs_str_new(NULL); xs *name = NULL; xs *avatar = NULL; char *p, *v; /* get the name */ if (xs_is_null((v = xs_dict_get(actor, "name"))) || *v == '\0') { if (xs_is_null(v = xs_dict_get(actor, "preferredUsername"))) { v = "user"; } } name = xs_dup(v); /* replace the :shortnames: */ if (!xs_is_null(p = xs_dict_get(actor, "tag"))) { /* iterate the tags */ while (xs_list_iter(&p, &v)) { char *t = xs_dict_get(v, "type"); if (t && strcmp(t, "Emoji") == 0) { char *n = xs_dict_get(v, "name"); char *i = xs_dict_get(v, "icon"); if (n && i) { char *u = xs_dict_get(i, "url"); xs *img = xs_fmt("", u); name = xs_replace_i(name, n, img); } } } } /* get the avatar */ if ((v = xs_dict_get(actor, "icon")) != NULL && (v = xs_dict_get(v, "url")) != NULL) { avatar = xs_dup(v); } if (avatar == NULL) avatar = xs_fmt("data:image/png;base64, %s", default_avatar_base64()); { xs *s1 = xs_fmt("

\"\"\n", avatar); s = xs_str_cat(s, s1); } { xs *s1 = xs_fmt("%s", xs_dict_get(actor, "id"), name); s = xs_str_cat(s, s1); } if (!xs_is_null(url)) { xs *s1 = xs_fmt(" »", url); s = xs_str_cat(s, s1); } if (priv) s = xs_str_cat(s, " 🔒"); if (xs_is_null(date)) { s = xs_str_cat(s, "
\n \n"); } else { xs *date_label = xs_crop_i(xs_dup(date), 0, 10); xs *date_title = xs_dup(date); if (!xs_is_null(udate)) { xs *sd = xs_crop_i(xs_dup(udate), 0, 10); date_label = xs_str_cat(date_label, " / "); date_label = xs_str_cat(date_label, sd); date_title = xs_str_cat(date_title, " / "); date_title = xs_str_cat(date_title, udate); } xs *s1 = xs_fmt( "
\n\n", date_title, date_label); s = xs_str_cat(s, s1); } return xs_str_cat(os, s); } d_char *html_msg_icon(snac *snac, d_char *os, char *msg) { char *actor_id; xs *actor = NULL; if ((actor_id = xs_dict_get(msg, "attributedTo")) == NULL) actor_id = xs_dict_get(msg, "actor"); if (actor_id && valid_status(actor_get(snac, actor_id, &actor))) { char *date = NULL; char *udate = NULL; char *url = NULL; int priv = 0; if (strcmp(xs_dict_get(msg, "type"), "Note") == 0) url = xs_dict_get(msg, "id"); priv = !is_msg_public(snac, msg); date = xs_dict_get(msg, "published"); udate = xs_dict_get(msg, "updated"); os = html_actor_icon(snac, os, actor, date, udate, url, priv); } return os; } d_char *html_user_header(snac *snac, d_char *s, int local) /* creates the HTML header */ { char *p, *v; s = xs_str_cat(s, "\n\n\n"); s = xs_str_cat(s, "\n"); s = xs_str_cat(s, "\n"); /* add server CSS */ p = xs_dict_get(srv_config, "cssurls"); while (xs_list_iter(&p, &v)) { xs *s1 = xs_fmt("\n", v); s = xs_str_cat(s, s1); } /* add the user CSS */ { xs *css = NULL; int size; if (valid_status(static_get(snac, "style.css", &css, &size))) { xs *s1 = xs_fmt("\n", css); s = xs_str_cat(s, s1); } } { xs *s1 = xs_fmt("%s (@%s@%s)\n", xs_dict_get(snac->config, "name"), snac->uid, xs_dict_get(srv_config, "host")); s = xs_str_cat(s, s1); } { xs *s1 = xs_fmt("\n", snac->actor); s = xs_str_cat(s, s1); } s = xs_str_cat(s, "\n\n"); /* top nav */ s = xs_str_cat(s, "

\n", snac->actor, L("RSS"), snac->actor, L("private")); else s1 = xs_fmt( "%s - " "%s - " "%s\n", snac->actor, L("public"), snac->actor, L("private"), snac->actor, L("people")); s = xs_str_cat(s, s1); } /* user info */ { xs *bio = NULL; char *_tmpl = "
\n" "

%s

\n" "

@%s@%s

\n" "
%s
\n" "
\n"; bio = not_really_markdown(xs_dict_get(snac->config, "bio")); xs *s1 = xs_fmt(_tmpl, xs_dict_get(snac->config, "name"), xs_dict_get(snac->config, "uid"), xs_dict_get(srv_config, "host"), bio ); s = xs_str_cat(s, s1); } return s; } d_char *html_top_controls(snac *snac, d_char *s) /* generates the top controls */ { char *_tmpl = "
\n" "
\n" "
\n" "\n" "\n" "

%s: \n" "

\n" "

%s: \n" "

\n" "

\n" "

\n" "
\n" "
%s\n" "
\n" "\n" " %s\n" "

\n" "

\n" "\n" " %s\n" "

\n" "

%s\n" "
\n" "
\n" "

%s:
\n" "

\n" "

%s:
\n" "

\n" "

%s:
\n" "

\n" "

\n" "

\n" "

%s:
\n" "

\n" "

%s:
\n" "

\n" "

%s:
\n" "

\n" "\n" "
\n" "
\n" "
\n" "
\n" "
\n" "
\n"; char *email = xs_dict_get(snac->config, "email"); if (xs_is_null(email)) email = ""; char *cw = xs_dict_get(snac->config, "cw"); if (xs_is_null(cw)) cw = ""; xs *s1 = xs_fmt(_tmpl, snac->actor, L("Sensitive content"), L("Image description"), L("Post"), L("More options..."), snac->actor, L("Follow"), L("(by URL or user@host)"), snac->actor, L("Boost"), L("(by URL)"), L("User setup..."), snac->actor, L("User name"), xs_dict_get(snac->config, "name"), L("Avatar URL"), xs_dict_get(snac->config, "avatar"), L("Bio"), xs_dict_get(snac->config, "bio"), strcmp(cw, "open") == 0 ? "checked" : "", L("Always show sensitive content"), L("Email address for notifications"), email, L("Password (only to change it)"), L("Repeat Password"), L("Update user info") ); s = xs_str_cat(s, s1); return s; } d_char *html_button(d_char *s, char *clss, char *label) { xs *s1 = xs_fmt( "\n", clss, label); return xs_str_cat(s, s1); } d_char *build_mentions(snac *snac, char *msg) /* returns a string with the mentions in msg */ { d_char *s = xs_str_new(NULL); char *list = xs_dict_get(msg, "tag"); char *v; while (xs_list_iter(&list, &v)) { char *type = xs_dict_get(v, "type"); char *href = xs_dict_get(v, "href"); char *name = xs_dict_get(v, "name"); if (type && strcmp(type, "Mention") == 0 && href && strcmp(href, snac->actor) != 0 && name) { xs *s1 = NULL; if (name[0] != '@') { s1 = xs_fmt("@%s", name); name = s1; } xs *l = xs_split(name, "@"); /* is it a name without a host? */ if (xs_list_len(l) < 3) { /* split the href and pick the host name LIKE AN ANIMAL */ /* would be better to query the webfinger but *won't do that* here */ xs *l2 = xs_split(href, "/"); if (xs_list_len(l2) >= 3) { xs *s1 = xs_fmt("%s@%s ", name, xs_list_get(l2, 2)); s = xs_str_cat(s, s1); } } else { s = xs_str_cat(s, name); s = xs_str_cat(s, " "); } } } if (*s) { xs *s1 = s; s = xs_fmt("\n\n\nCC: %s", s1); } return s; } d_char *html_entry_controls(snac *snac, d_char *os, char *msg, const char *md5) { char *id = xs_dict_get(msg, "id"); char *actor = xs_dict_get(msg, "attributedTo"); xs *likes = object_likes(id); xs *boosts = object_announces(id); xs *s = xs_str_new(NULL); s = xs_str_cat(s, "
\n"); { xs *s1 = xs_fmt( "
\n" "\n" "\n" "\n" "\n", snac->actor, id, actor, md5 ); s = xs_str_cat(s, s1); } if (xs_list_in(likes, snac->md5) == -1) { /* not already liked; add button */ s = html_button(s, "like", L("Like")); } if (is_msg_public(snac, msg)) { if (strcmp(actor, snac->actor) == 0 || xs_list_in(boosts, snac->md5) == -1) { /* not already boosted or us; add button */ s = html_button(s, "boost", L("Boost")); } } if (strcmp(actor, snac->actor) != 0) { /* controls for other actors than this one */ if (following_check(snac, actor)) { s = html_button(s, "unfollow", L("Unfollow")); } else { s = html_button(s, "follow", L("Follow")); } s = html_button(s, "mute", L("MUTE")); } s = html_button(s, "delete", L("Delete")); s = html_button(s, "hide", L("Hide")); s = xs_str_cat(s, "
\n"); char *prev_src = xs_dict_get(msg, "sourceContent"); if (!xs_is_null(prev_src) && strcmp(actor, snac->actor) == 0) { /* post can be edited */ xs *s1 = xs_fmt( "

%s\n" "

\n" "
\n" "\n" "\n" "

%s: \n" "

\n" "

%s: \n" "\n" "

\n" "

\n" "

" "\n", L("Edit..."), md5, snac->actor, md5, prev_src, id, L("Sensitive content"), L("Image description"), md5, L("Post") ); s = xs_str_cat(s, s1); } { /* the post textarea */ xs *ct = build_mentions(snac, msg); xs *s1 = xs_fmt( "

%s\n" "

\n" "
\n" "\n" "\n" "

%s: \n" "

\n" "

%s: \n" "\n" "

\n" "

\n" "

" "\n", L("Reply..."), md5, snac->actor, md5, ct, id, L("Sensitive content"), L("Image description"), md5, L("Post") ); s = xs_str_cat(s, s1); } s = xs_str_cat(s, "

\n"); return xs_str_cat(os, s); } d_char *html_entry(snac *snac, d_char *os, char *msg, int local, int level, const char *md5) { char *id = xs_dict_get(msg, "id"); char *type = xs_dict_get(msg, "type"); char *actor; int sensitive = 0; char *v; xs *boosts = NULL; /* do not show non-public messages in the public timeline */ if (local && !is_msg_public(snac, msg)) return os; xs *s = xs_str_new(NULL); /* top wrap */ if (is_hidden(snac, id)) s = xs_str_cat(s, "
\n"); else s = xs_str_cat(s, "
\n"); { xs *s1 = xs_fmt("\n", md5); s = xs_str_cat(s, s1); } if (strcmp(type, "Follow") == 0) { s = xs_str_cat(s, "
\n"); xs *s1 = xs_fmt("
%s
\n", L("follows you")); s = xs_str_cat(s, s1); s = html_msg_icon(snac, s, msg); s = xs_str_cat(s, "
\n"); return xs_str_cat(os, s); } else if (strcmp(type, "Note") != 0) { /* skip oddities */ return os; } /* bring the main actor */ if ((actor = xs_dict_get(msg, "attributedTo")) == NULL) return os; /* ignore muted morons immediately */ if (is_muted(snac, actor)) return os; if (strcmp(actor, snac->actor) != 0 && !valid_status(actor_get(snac, actor, NULL))) return os; /* if this is our post, add the score */ if (xs_startswith(id, snac->actor)) { int n_likes = object_likes_len(id); int n_boosts = object_announces_len(id); /* alternate emojis: %d 👍 %d 🔁 */ xs *s1 = xs_fmt( "
%d ★ %d ↺
\n", n_likes, n_boosts); s = xs_str_cat(s, s1); } if (level == 0) s = xs_str_cat(s, "
\n"); else s = xs_str_cat(s, "
\n"); if (boosts == NULL) boosts = object_announces(id); if (xs_list_len(boosts)) { /* if somebody boosted this, show as origin */ char *p = xs_list_get(boosts, -1); xs *actor_r = NULL; if (xs_list_in(boosts, snac->md5) != -1) { /* we boosted this */ xs *s1 = xs_fmt( "
" "%s %s
", snac->actor, xs_dict_get(snac->config, "name"), L("boosted") ); s = xs_str_cat(s, s1); } else if (valid_status(object_get_by_md5(p, &actor_r))) { char *name; if ((name = xs_dict_get(actor_r, "name")) == NULL) name = xs_dict_get(actor_r, "preferredUsername"); if (!xs_is_null(name)) { xs *s1 = xs_fmt( "
" "%s %s
\n", xs_dict_get(actor_r, "id"), name, L("boosted") ); s = xs_str_cat(s, s1); } } } else if (strcmp(type, "Note") == 0) { /* is the parent not here? */ char *parent = xs_dict_get(msg, "inReplyTo"); if (!xs_is_null(parent) && *parent && !object_here(parent)) { xs *s1 = xs_fmt( "
%s " "»
\n", L("in reply to"), parent ); s = xs_str_cat(s, s1); } } s = html_msg_icon(snac, s, msg); /* add the content */ s = xs_str_cat(s, "
\n"); /* is it sensitive? */ if (!xs_is_null(v = xs_dict_get(msg, "sensitive")) && xs_type(v) == XSTYPE_TRUE) { if (xs_is_null(v = xs_dict_get(msg, "summary")) || *v == '\0') v = "..."; /* only show it when not in the public timeline and the config setting is "open" */ char *cw = xs_dict_get(snac->config, "cw"); if (xs_is_null(cw) || local) cw = ""; xs *s1 = xs_fmt("
%s [%s]\n", cw, v, L("SENSITIVE CONTENT")); s = xs_str_cat(s, s1); sensitive = 1; } #if 0 { xs *md5 = xs_md5_hex(id, strlen(id)); xs *s1 = xs_fmt("

%s

\n", md5); s = xs_str_cat(s, s1); } #endif { xs *c = sanitize(xs_dict_get(msg, "content")); char *p, *v; /* do some tweaks to the content */ c = xs_replace_i(c, "\r", ""); while (xs_endswith(c, "

")) c = xs_crop_i(c, 0, -4); c = xs_replace_i(c, "

", "

"); if (!xs_startswith(c, "

")) { xs *s1 = c; c = xs_fmt("

%s

", s1); } /* replace the :shortnames: */ if (!xs_is_null(p = xs_dict_get(msg, "tag"))) { /* iterate the tags */ while (xs_list_iter(&p, &v)) { char *t = xs_dict_get(v, "type"); if (t && strcmp(t, "Emoji") == 0) { char *n = xs_dict_get(v, "name"); char *i = xs_dict_get(v, "icon"); if (n && i) { char *u = xs_dict_get(i, "url"); xs *img = xs_fmt("", u); c = xs_replace_i(c, n, img); } } } } s = xs_str_cat(s, c); } s = xs_str_cat(s, "\n"); /* add the attachments */ char *attach; if ((attach = xs_dict_get(msg, "attachment")) != NULL) { char *v; while (xs_list_iter(&attach, &v)) { char *t = xs_dict_get(v, "mediaType"); if (xs_is_null(t)) continue; if (xs_startswith(t, "image/")) { char *url = xs_dict_get(v, "url"); char *name = xs_dict_get(v, "name"); if (url != NULL) { xs *s1 = xs_fmt("

\"%s\"

\n", url, xs_is_null(name) ? "" : name); s = xs_str_cat(s, s1); } } else if (xs_startswith(t, "video/")) { char *url = xs_dict_get(v, "url"); if (url != NULL) { xs *s1 = xs_fmt("

\n", url); s = xs_str_cat(s, s1); } } } } if (sensitive) s = xs_str_cat(s, "

\n"); s = xs_str_cat(s, "

\n"); /** controls **/ if (!local) s = html_entry_controls(snac, s, msg, md5); /** children **/ xs *children = object_children(id); int left = xs_list_len(children); if (left) { char *p, *cmd5; int older_open = 0; xs *ss = xs_str_new(NULL); int n_children = 0; ss = xs_str_cat(ss, "
...

\n"); if (level < 4) ss = xs_str_cat(ss, "

\n"); else ss = xs_str_cat(ss, "
\n"); if (left > 3) { xs *s1 = xs_fmt("
%s\n", L("Older...")); ss = xs_str_cat(ss, s1); older_open = 1; } p = children; while (xs_list_iter(&p, &cmd5)) { xs *chd = NULL; timeline_get_by_md5(snac, cmd5, &chd); if (older_open && left <= 3) { ss = xs_str_cat(ss, "
\n"); older_open = 0; } if (chd != NULL) { ss = html_entry(snac, ss, chd, local, level + 1, cmd5); n_children++; } else snac_debug(snac, 2, xs_fmt("cannot read from timeline child %s", cmd5)); left--; } if (older_open) ss = xs_str_cat(ss, "
\n"); ss = xs_str_cat(ss, "
\n"); ss = xs_str_cat(ss, "\n"); if (n_children) s = xs_str_cat(s, ss); } s = xs_str_cat(s, "
\n
\n"); return xs_str_cat(os, s); } d_char *html_user_footer(snac *snac, d_char *s) { xs *s1 = xs_fmt( "
\n" "%s - " "powered by snac
\n", srv_baseurl, L("about this site") ); return xs_str_cat(s, s1); } d_char *html_timeline(snac *snac, char *list, int local, int skip, int show, int show_more) /* returns the HTML for the timeline */ { d_char *s = xs_str_new(NULL); char *v; double t = ftime(); s = html_user_header(snac, s, local); if (!local) s = html_top_controls(snac, s); s = xs_str_cat(s, "\n"); s = xs_str_cat(s, "
\n"); while (xs_list_iter(&list, &v)) { xs *msg = NULL; if (!valid_status(timeline_get_by_md5(snac, v, &msg))) continue; s = html_entry(snac, s, msg, local, 0, v); } s = xs_str_cat(s, "
\n"); if (local) { xs *s1 = xs_fmt( "
\n" "

%s

\n"); } { xs *s1 = xs_fmt("\n", ftime() - t); s = xs_str_cat(s, s1); } if (show_more) { xs *s1 = xs_fmt( "

" "%s" "

\n", snac->actor, local ? "" : "/admin", skip + show, show, L("More...")); s = xs_str_cat(s, s1); } s = html_user_footer(snac, s); s = xs_str_cat(s, "\n\n"); return s; } d_char *html_people_list(snac *snac, d_char *os, d_char *list, const char *header, const char *t) { xs *s = xs_str_new(NULL); xs *h = xs_fmt("

%s

\n", header); char *p, *actor_id; s = xs_str_cat(s, h); p = list; while (xs_list_iter(&p, &actor_id)) { xs *md5 = xs_md5_hex(actor_id, strlen(actor_id)); xs *actor = NULL; if (valid_status(actor_get(snac, actor_id, &actor))) { s = xs_str_cat(s, "
\n"); s = html_actor_icon(snac, s, actor, xs_dict_get(actor, "published"), NULL, NULL, 0); /* content (user bio) */ char *c = xs_dict_get(actor, "summary"); if (!xs_is_null(c)) { s = xs_str_cat(s, "
\n"); xs *sc = sanitize(c); if (xs_startswith(sc, "

")) s = xs_str_cat(s, sc); else { xs *s1 = xs_fmt("

%s

", sc); s = xs_str_cat(s, s1); } s = xs_str_cat(s, "
\n"); } /* buttons */ s = xs_str_cat(s, "
\n"); xs *s1 = xs_fmt( "

\n" "\n", snac->actor, actor_id, md5, t ); s = xs_str_cat(s, s1); if (following_check(snac, actor_id)) s = html_button(s, "unfollow", L("Unfollow")); else s = html_button(s, "follow", L("Follow")); if (is_muted(snac, actor_id)) s = html_button(s, "unmute", L("Unmute")); else s = html_button(s, "mute", L("MUTE")); s = xs_str_cat(s, "
\n"); /* the post textarea */ xs *s2 = xs_fmt( "

%s\n" "

\n" "
\n" "\n" "\n" "

\n" "

\n" "

\n" "

\n", L("Direct Message..."), md5, t, snac->actor, md5, actor_id, L("Post") ); s = xs_str_cat(s, s2); s = xs_str_cat(s, "

\n"); s = xs_str_cat(s, "
\n"); } } return xs_str_cat(os, s); } d_char *html_people(snac *snac) { d_char *s = xs_str_new(NULL); xs *wing = following_list(snac); xs *wers = follower_list(snac); s = html_user_header(snac, s, 0); s = html_people_list(snac, s, wing, L("People you follow"), "i"); s = html_people_list(snac, s, wers, L("People that follows you"), "e"); s = html_user_footer(snac, s); s = xs_str_cat(s, "\n\n"); return s; } int html_get_handler(d_char *req, char *q_path, char **body, int *b_size, char **ctype) { char *accept = xs_dict_get(req, "accept"); int status = 404; snac snac; xs *uid = NULL; char *p_path; int cache = 1; int save = 1; char *v; xs *l = xs_split_n(q_path, "/", 2); v = xs_list_get(l, 1); if (xs_is_null(v)) { srv_log(xs_fmt("html_get_handler bad query '%s'", q_path)); return 404; } uid = xs_dup(v); /* rss extension? */ if (xs_endswith(uid, ".rss")) { uid = xs_crop_i(uid, 0, -4); p_path = ".rss"; } else p_path = xs_list_get(l, 2); if (!uid || !user_open(&snac, uid)) { /* invalid user */ srv_debug(1, xs_fmt("html_get_handler bad user %s", uid)); return 404; } /* return the RSS if requested by Accept header */ if (accept != NULL) { if (xs_str_in(accept, "text/xml") != -1 || xs_str_in(accept, "application/rss+xml") != -1) p_path = ".rss"; } /* check if server config variable 'disable_cache' is set */ if ((v = xs_dict_get(srv_config, "disable_cache")) && xs_type(v) == XSTYPE_TRUE) cache = 0; int skip = 0; int show = xs_number_get(xs_dict_get(srv_config, "max_timeline_entries")); char *q_vars = xs_dict_get(req, "q_vars"); if ((v = xs_dict_get(q_vars, "skip")) != NULL) skip = atoi(v), cache = 0, save = 0; if ((v = xs_dict_get(q_vars, "show")) != NULL) show = atoi(v), cache = 0, save = 0; if (p_path == NULL) { /* public timeline */ xs *h = xs_str_localtime(0, "%Y-%m.html"); if (cache && history_mtime(&snac, h) > timeline_mtime(&snac)) { snac_debug(&snac, 1, xs_fmt("serving cached local timeline")); *body = history_get(&snac, h); *b_size = strlen(*body); status = 200; } else { xs *list = timeline_list(&snac, "public", skip, show); xs *next = timeline_list(&snac, "public", skip + show, 1); *body = html_timeline(&snac, list, 1, skip, show, xs_list_len(next)); *b_size = strlen(*body); status = 200; if (save) history_add(&snac, h, *body, *b_size); } } else if (strcmp(p_path, "admin") == 0) { /* private timeline */ if (!login(&snac, req)) status = 401; else { if (cache && history_mtime(&snac, "timeline.html_") > timeline_mtime(&snac)) { snac_debug(&snac, 1, xs_fmt("serving cached timeline")); *body = history_get(&snac, "timeline.html_"); *b_size = strlen(*body); status = 200; } else { snac_debug(&snac, 1, xs_fmt("building timeline")); xs *list = timeline_list(&snac, "private", skip, show); xs *next = timeline_list(&snac, "private", skip + show, 1); *body = html_timeline(&snac, list, 0, skip, show, xs_list_len(next)); *b_size = strlen(*body); status = 200; if (save) history_add(&snac, "timeline.html_", *body, *b_size); } } } else if (strcmp(p_path, "people") == 0) { /* the list of people */ if (!login(&snac, req)) status = 401; else { *body = html_people(&snac); *b_size = strlen(*body); status = 200; } } else if (xs_startswith(p_path, "p/")) { /* a timeline with just one entry */ xs *id = xs_fmt("%s/%s", snac.actor, p_path); xs *msg = NULL; if (valid_status(object_get(id, &msg))) { xs *md5 = xs_md5_hex(id, strlen(id)); xs *list = xs_list_new(); list = xs_list_append(list, md5); *body = html_timeline(&snac, list, 1, 0, 0, 0); *b_size = strlen(*body); status = 200; } } else if (xs_startswith(p_path, "s/")) { /* a static file */ xs *l = xs_split(p_path, "/"); char *id = xs_list_get(l, 1); int sz; if (valid_status(static_get(&snac, id, body, &sz))) { *b_size = sz; *ctype = xs_mime_by_ext(id); status = 200; } } else if (xs_startswith(p_path, "h/")) { /* an entry from the history */ xs *l = xs_split(p_path, "/"); char *id = xs_list_get(l, 1); if ((*body = history_get(&snac, id)) != NULL) { *b_size = strlen(*body); status = 200; } } else if (strcmp(p_path, ".rss") == 0) { /* public timeline in RSS format */ d_char *rss; xs *elems = timeline_simple_list(&snac, "public", 0, 20); xs *bio = not_really_markdown(xs_dict_get(snac.config, "bio")); char *p, *v; /* escape tags */ bio = xs_replace_i(bio, "<", "<"); bio = xs_replace_i(bio, ">", ">"); rss = xs_fmt( "\n" "\n" "\n" "%s (@%s@%s)\n" "en\n" "%s.rss\n" "%s\n", xs_dict_get(snac.config, "name"), snac.uid, xs_dict_get(srv_config, "host"), snac.actor, bio ); p = elems; while (xs_list_iter(&p, &v)) { xs *msg = NULL; if (!valid_status(timeline_get_by_md5(&snac, v, &msg))) continue; char *id = xs_dict_get(msg, "id"); if (!xs_startswith(id, snac.actor)) continue; xs *content = sanitize(xs_dict_get(msg, "content")); xs *title = xs_str_new(NULL); int i; /* escape tags */ content = xs_replace_i(content, "<", "<"); content = xs_replace_i(content, ">", ">"); for (i = 0; content[i] && content[i] != '<' && content[i] != '&' && i < 40; i++) title = xs_append_m(title, &content[i], 1); xs *s = xs_fmt( "\n" "%s...\n" "%s\n" "%s\n" "\n", title, id, content ); rss = xs_str_cat(rss, s); } rss = xs_str_cat(rss, "\n\n"); *body = rss; *b_size = strlen(rss); *ctype = "application/rss+xml; charset=utf-8"; status = 200; snac_debug(&snac, 1, xs_fmt("serving RSS")); } else status = 404; user_free(&snac); if (valid_status(status) && *ctype == NULL) { *ctype = "text/html; charset=utf-8"; } return status; } int html_post_handler(d_char *req, char *q_path, d_char *payload, int p_size, char **body, int *b_size, char **ctype) { int status = 0; snac snac; char *uid, *p_path; char *p_vars; xs *l = xs_split_n(q_path, "/", 2); uid = xs_list_get(l, 1); if (!uid || !user_open(&snac, uid)) { /* invalid user */ srv_debug(1, xs_fmt("html_post_handler bad user %s", uid)); return 404; } p_path = xs_list_get(l, 2); /* all posts must be authenticated */ if (!login(&snac, req)) { user_free(&snac); return 401; } p_vars = xs_dict_get(req, "p_vars"); #if 0 { xs *j1 = xs_json_dumps_pp(p_vars, 4); printf("%s\n", j1); } #endif if (p_path && strcmp(p_path, "admin/note") == 0) { /* post note */ char *content = xs_dict_get(p_vars, "content"); char *in_reply_to = xs_dict_get(p_vars, "in_reply_to"); char *attach_url = xs_dict_get(p_vars, "attach_url"); char *attach_file = xs_dict_get(p_vars, "attach"); char *to = xs_dict_get(p_vars, "to"); char *sensitive = xs_dict_get(p_vars, "sensitive"); char *edit_id = xs_dict_get(p_vars, "edit_id"); char *alt_text = xs_dict_get(p_vars, "alt_text"); xs *attach_list = xs_list_new(); /* default alt text */ if (xs_is_null(alt_text)) alt_text = ""; /* is attach_url set? */ if (!xs_is_null(attach_url) && *attach_url != '\0') { xs *l = xs_list_new(); l = xs_list_append(l, attach_url); l = xs_list_append(l, alt_text); attach_list = xs_list_append(attach_list, l); } /* is attach_file set? */ if (!xs_is_null(attach_file) && xs_type(attach_file) == XSTYPE_LIST) { char *fn = xs_list_get(attach_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(attach_file, 1)); int fs = xs_number_get(xs_list_get(attach_file, 2)); /* store */ static_put(&snac, id, payload + fo, fs); xs *l = xs_list_new(); l = xs_list_append(l, url); l = xs_list_append(l, alt_text); attach_list = xs_list_append(attach_list, l); } } if (content != NULL) { xs *msg = NULL; xs *c_msg = NULL; xs *content_2 = xs_replace(content, "\r", ""); msg = msg_note(&snac, content_2, to, in_reply_to, attach_list); if (sensitive != NULL) { xs *t = xs_val_new(XSTYPE_TRUE); msg = xs_dict_set(msg, "sensitive", t); msg = xs_dict_set(msg, "summary", "..."); } if (xs_is_null(edit_id)) { /* new message */ c_msg = msg_create(&snac, msg); timeline_add(&snac, xs_dict_get(msg, "id"), msg); } else { /* an edition of a previous message */ xs *p_msg = NULL; if (valid_status(object_get(edit_id, &p_msg))) { /* copy relevant fields from previous version */ char *fields[] = { "id", "context", "url", "published", "to", "inReplyTo", NULL }; int n; for (n = 0; fields[n]; n++) { char *v = xs_dict_get(p_msg, fields[n]); msg = xs_dict_set(msg, fields[n], v); } /* set the updated field */ xs *updated = xs_str_utctime(0, "%Y-%m-%dT%H:%M:%SZ"); msg = xs_dict_set(msg, "updated", updated); /* overwrite object, not updating the indexes */ object_add_ow(edit_id, msg); /* update message */ c_msg = msg_update(&snac, msg); } else snac_log(&snac, xs_fmt("cannot get object '%s' for editing", edit_id)); } if (c_msg != NULL) enqueue_message(&snac, c_msg); } status = 303; } else if (p_path && strcmp(p_path, "admin/action") == 0) { /* action on an entry */ char *id = xs_dict_get(p_vars, "id"); char *actor = xs_dict_get(p_vars, "actor"); char *action = xs_dict_get(p_vars, "action"); if (action == NULL) return 404; snac_debug(&snac, 1, xs_fmt("web action '%s' received", action)); status = 303; if (strcmp(action, L("Like")) == 0) { xs *msg = msg_admiration(&snac, id, "Like"); if (msg != NULL) { enqueue_message(&snac, msg); timeline_admire(&snac, xs_dict_get(msg, "object"), snac.actor, 1); } } else if (strcmp(action, L("Boost")) == 0) { xs *msg = msg_admiration(&snac, id, "Announce"); if (msg != NULL) { enqueue_message(&snac, msg); timeline_admire(&snac, xs_dict_get(msg, "object"), snac.actor, 0); } } else if (strcmp(action, L("MUTE")) == 0) { mute(&snac, actor); } else if (strcmp(action, L("Unmute")) == 0) { unmute(&snac, actor); } else if (strcmp(action, L("Hide")) == 0) { hide(&snac, id); } else if (strcmp(action, L("Follow")) == 0) { 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); } } else if (strcmp(action, L("Unfollow")) == 0) { /* 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); snac_log(&snac, xs_fmt("unfollowed actor %s", actor)); } else snac_log(&snac, xs_fmt("actor is not being followed %s", actor)); } else if (strcmp(action, L("Delete")) == 0) { /* delete an entry */ if (xs_startswith(id, snac.actor)) { /* it's a post by us: generate a delete */ xs *msg = msg_delete(&snac, id); enqueue_message(&snac, msg); /* FIXME: also post this Tombstone to people that Announce'd it */ snac_log(&snac, xs_fmt("posted tombstone for %s", id)); } timeline_del(&snac, id); snac_log(&snac, xs_fmt("deleted entry %s", id)); } else status = 404; /* delete the cached timeline */ if (status == 303) history_del(&snac, "timeline.html_"); } else if (p_path && strcmp(p_path, "admin/user-setup") == 0) { /* change of user data */ char *v; char *p1, *p2; if ((v = xs_dict_get(p_vars, "name")) != NULL) snac.config = xs_dict_set(snac.config, "name", v); if ((v = xs_dict_get(p_vars, "avatar")) != NULL) snac.config = xs_dict_set(snac.config, "avatar", v); if ((v = xs_dict_get(p_vars, "bio")) != NULL) snac.config = xs_dict_set(snac.config, "bio", v); if ((v = xs_dict_get(p_vars, "cw")) != NULL && strcmp(v, "on") == 0) { snac.config = xs_dict_set(snac.config, "cw", "open"); } else { /* if the checkbox is not set, the parameter is missing */ snac.config = xs_dict_set(snac.config, "cw", ""); } if ((v = xs_dict_get(p_vars, "email")) != NULL) snac.config = xs_dict_set(snac.config, "email", v); /* password change? */ if ((p1 = xs_dict_get(p_vars, "passwd1")) != NULL && (p2 = xs_dict_get(p_vars, "passwd2")) != NULL && *p1 && strcmp(p1, p2) == 0) { xs *pw = hash_password(snac.uid, p1, NULL); snac.config = xs_dict_set(snac.config, "passwd", pw); } xs *fn = xs_fmt("%s/user.json", snac.basedir); xs *bfn = xs_fmt("%s.bak", fn); FILE *f; rename(fn, bfn); if ((f = fopen(fn, "w")) != NULL) { xs *j = xs_json_dumps_pp(snac.config, 4); fwrite(j, strlen(j), 1, f); fclose(f); } else rename(bfn, fn); history_del(&snac, "timeline.html_"); xs *a_msg = msg_actor(&snac); xs *u_msg = msg_update(&snac, a_msg); enqueue_message(&snac, u_msg); status = 303; } if (status == 303) { char *redir = xs_dict_get(p_vars, "redir"); if (xs_is_null(redir)) redir = "snac-posts"; *body = xs_fmt("%s/admin#%s", snac.actor, redir); *b_size = strlen(*body); } user_free(&snac); return status; }