Added const everywhere.

1 files changed, 49 insertions, 81 deletions

diff --git a/data.c b/data.c
index 0cceefd..3377f3e 100644
--- a/data.c
+++ b/data.c
@@ -29,7 +29,7 @@ pthread_mutex_t data_mutex = {0};
 int snac_upgrade(xs_str **error);
 
 
-int srv_open(char *basedir, int auto_upgrade)
+int srv_open(const char *basedir, int auto_upgrade)
 /* opens a server */
 {
     int ret = 0;
@@ -58,10 +58,10 @@ int srv_open(char *basedir, int auto_upgrade)
         if (srv_config == NULL)
             error = xs_fmt("ERROR: cannot parse '%s'", cfg_file);
         else {
-            char *host;
-            char *prefix;
-            char *dbglvl;
-            char *proto;
+            const char *host;
+            const char *prefix;
+            const char *dbglvl;
+            const char *proto;
 
             host   = xs_dict_get(srv_config, "host");
             prefix = xs_dict_get(srv_config, "prefix");
@@ -710,7 +710,7 @@ int _object_add(const char *id, const xs_dict *obj, int ow)
         fclose(f);
 
         /* does this object has a parent? */
-        char *in_reply_to = xs_dict_get(obj, "inReplyTo");
+        const char *in_reply_to = xs_dict_get(obj, "inReplyTo");
 
         if (!xs_is_null(in_reply_to) && *in_reply_to) {
             /* update the children index of the parent */
@@ -1124,7 +1124,7 @@ int timeline_get_by_md5(snac *snac, const char *md5, xs_dict **msg)
 }
 
 
-int timeline_del(snac *snac, char *id)
+int timeline_del(snac *snac, const char *id)
 /* deletes a message from the timeline */
 {
     /* delete from the user's caches */
@@ -1192,17 +1192,16 @@ int timeline_admire(snac *snac, const char *id, const char *admirer, int like)
 }
 
 
-xs_list *timeline_top_level(snac *snac, xs_list *list)
+xs_list *timeline_top_level(snac *snac, const xs_list *list)
 /* returns the top level md5 entries from this index */
 {
     xs_set seen;
-    xs_list *p;
     xs_str *v;
 
     xs_set_init(&seen);
 
-    p = list;
-    while (xs_list_iter(&p, &v)) {
+    int c = 0;
+    while (xs_list_next(list, &v, &c)) {
         char line[256] = "";
 
         strncpy(line, v, sizeof(line));
@@ -1290,7 +1289,7 @@ int following_add(snac *snac, const char *actor, const xs_dict *msg)
         /* object already exists; if it's of type Accept,
            the actor is already being followed and confirmed,
            so do nothing */
-        char *type = xs_dict_get(p_object, "type");
+        const char *type = xs_dict_get(p_object, "type");
 
         if (!xs_is_null(type) && strcmp(type, "Accept") == 0) {
             snac_debug(snac, 1, xs_fmt("following_add actor already confirmed %s", actor));
@@ -1546,8 +1545,9 @@ void hide(snac *snac, const char *id)
 
             /* resolve to get the id */
             if (valid_status(object_get_by_md5(v, &co))) {
-                if ((v = xs_dict_get(co, "id")) != NULL)
-                    hide(snac, v);
+                const char *id = xs_dict_get(co, "id");
+                if (id != NULL)
+                    hide(snac, id);
             }
         }
     }
@@ -1563,7 +1563,7 @@ int is_hidden(snac *snac, const char *id)
 }
 
 
-int actor_add(const char *actor, xs_dict *msg)
+int actor_add(const char *actor, const xs_dict *msg)
 /* adds an actor */
 {
     return object_add_ow(actor, msg);
@@ -1687,7 +1687,7 @@ int limited(snac *user, const char *id, int cmd)
 void tag_index(const char *id, const xs_dict *obj)
 /* update the tag indexes for this object */
 {
-    xs_list *tags = xs_dict_get(obj, "tag");
+    const xs_list *tags = xs_dict_get(obj, "tag");
 
     if (is_msg_public(obj) && xs_type(tags) == XSTYPE_LIST && xs_list_len(tags) > 0) {
         xs *g_tag_dir = xs_fmt("%s/tag", srv_basedir);
@@ -1695,9 +1695,10 @@ void tag_index(const char *id, const xs_dict *obj)
         mkdirx(g_tag_dir);
 
         xs_dict *v;
-        while (xs_list_iter(&tags, &v)) {
-            char *type = xs_dict_get(v, "type");
-            char *name = xs_dict_get(v, "name");
+        int ct = 0;
+        while (xs_list_next(tags, &v, &ct)) {
+            const char *type = xs_dict_get(v, "type");
+            const char *name = xs_dict_get(v, "name");
 
             if (!xs_is_null(type) && !xs_is_null(name) && strcmp(type, "Hashtag") == 0) {
                 while (*name == '#' || *name == '@')
@@ -1706,7 +1707,7 @@ void tag_index(const char *id, const xs_dict *obj)
                 if (*name == '\0')
                     continue;
 
-                name = xs_tolower_i(name);
+                name = xs_tolower_i((xs_str *)name);
 
                 xs *md5_tag   = xs_md5_hex(name, strlen(name));
                 xs *tag_dir   = xs_fmt("%s/%c%c", g_tag_dir, md5_tag[0], md5_tag[1]);
@@ -1729,7 +1730,7 @@ void tag_index(const char *id, const xs_dict *obj)
 }
 
 
-xs_list *tag_search(char *tag, int skip, int show)
+xs_list *tag_search(const char *tag, int skip, int show)
 /* returns the list of posts tagged with tag */
 {
     if (*tag == '#')
@@ -1912,7 +1913,7 @@ xs_val *list_content(snac *user, const char *list, const char *actor_md5, int op
 void list_distribute(snac *user, const char *who, const xs_dict *post)
 /* distributes the post to all appropriate lists */
 {
-    char *id = xs_dict_get(post, "id");
+    const char *id = xs_dict_get(post, "id");
 
     /* if who is not set, use the attributedTo in the message */
     if (xs_is_null(who))
@@ -2164,7 +2165,7 @@ void inbox_add(const char *inbox)
 void inbox_add_by_actor(const xs_dict *actor)
 /* collects an actor's shared inbox, if it has one */
 {
-    char *v;
+    const char *v;
 
     if (!xs_is_null(v = xs_dict_get(actor, "endpoints")) &&
         !xs_is_null(v = xs_dict_get(v, "sharedInbox"))) {
@@ -2210,7 +2211,7 @@ xs_str *_instance_block_fn(const char *instance)
     xs *s   = xs_replace(instance, "http:/" "/", "");
     xs *s1  = xs_replace(s, "https:/" "/", "");
     xs *l   = xs_split(s1, "/");
-    char *p = xs_list_get(l, 0);
+    const char *p = xs_list_get(l, 0);
     xs *md5 = xs_md5_hex(p, strlen(p));
 
     return xs_fmt("%s/block/%s", srv_basedir, md5);
@@ -2279,7 +2280,7 @@ int content_match(const char *file, const xs_dict *msg)
     xs *fn = xs_fmt("%s/%s", srv_basedir, file);
     FILE *f;
     int r = 0;
-    char *v = xs_dict_get(msg, "content");
+    const char *v = xs_dict_get(msg, "content");
 
     if (xs_type(v) == XSTYPE_STRING && *v) {
         if ((f = fopen(fn, "r")) != NULL) {
@@ -2386,7 +2387,7 @@ xs_list *content_search(snac *user, const char *regex,
         if (id == NULL || is_hidden(user, id))
             continue;
 
-        char *content = xs_dict_get(post, "content");
+        const char *content = xs_dict_get(post, "content");
 
         if (xs_is_null(content))
             continue;
@@ -2639,7 +2640,7 @@ void enqueue_input(snac *snac, const xs_dict *msg, const xs_dict *req, int retri
 /* enqueues an input message */
 {
     xs *qmsg   = _new_qmsg("input", msg, retries);
-    char *ntid = xs_dict_get(qmsg, "ntid");
+    const char *ntid = xs_dict_get(qmsg, "ntid");
     xs *fn     = xs_fmt("%s/queue/%s.json", snac->basedir, ntid);
 
     qmsg = xs_dict_append(qmsg, "req", req);
@@ -2654,7 +2655,7 @@ void enqueue_shared_input(const xs_dict *msg, const xs_dict *req, int retries)
 /* enqueues an input message from the shared input */
 {
     xs *qmsg   = _new_qmsg("input", msg, retries);
-    char *ntid = xs_dict_get(qmsg, "ntid");
+    const char *ntid = xs_dict_get(qmsg, "ntid");
     xs *fn     = xs_fmt("%s/queue/%s.json", srv_basedir, ntid);
 
     qmsg = xs_dict_append(qmsg, "req", req);
@@ -2666,11 +2667,12 @@ void enqueue_shared_input(const xs_dict *msg, const xs_dict *req, int retries)
 
 
 void enqueue_output_raw(const char *keyid, const char *seckey,
-                        xs_dict *msg, xs_str *inbox, int retries, int p_status)
+                        const xs_dict *msg, const xs_str *inbox,
+                        int retries, int p_status)
 /* enqueues an output message to an inbox */
 {
     xs *qmsg   = _new_qmsg("output", msg, retries);
-    char *ntid = xs_dict_get(qmsg, "ntid");
+    const char *ntid = xs_dict_get(qmsg, "ntid");
     xs *fn     = xs_fmt("%s/queue/%s.json", srv_basedir, ntid);
 
     xs *ns = xs_number_new(p_status);
@@ -2690,7 +2692,8 @@ void enqueue_output_raw(const char *keyid, const char *seckey,
 }
 
 
-void enqueue_output(snac *snac, xs_dict *msg, xs_str *inbox, int retries, int p_status)
+void enqueue_output(snac *snac, const xs_dict *msg,
+                    const xs_str *inbox, int retries, int p_status)
 /* enqueues an output message to an inbox */
 {
     if (xs_startswith(inbox, snac->actor)) {
@@ -2698,13 +2701,14 @@ void enqueue_output(snac *snac, xs_dict *msg, xs_str *inbox, int retries, int p_
         return;
     }
 
-    char *seckey = xs_dict_get(snac->key, "secret");
+    const char *seckey = xs_dict_get(snac->key, "secret");
 
     enqueue_output_raw(snac->actor, seckey, msg, inbox, retries, p_status);
 }
 
 
-void enqueue_output_by_actor(snac *snac, xs_dict *msg, const xs_str *actor, int retries)
+void enqueue_output_by_actor(snac *snac, const xs_dict *msg,
+                            const xs_str *actor, int retries)
 /* enqueues an output message for an actor */
 {
     xs *inbox = get_actor_inbox(actor);
@@ -2716,11 +2720,11 @@ void enqueue_output_by_actor(snac *snac, xs_dict *msg, const xs_str *actor, int
 }
 
 
-void enqueue_email(xs_str *msg, int retries)
+void enqueue_email(const xs_str *msg, int retries)
 /* enqueues an email message to be sent */
 {
     xs *qmsg   = _new_qmsg("email", msg, retries);
-    char *ntid = xs_dict_get(qmsg, "ntid");
+    const char *ntid = xs_dict_get(qmsg, "ntid");
     xs *fn     = xs_fmt("%s/queue/%s.json", srv_basedir, ntid);
 
     qmsg = _enqueue_put(fn, qmsg);
@@ -2733,7 +2737,7 @@ void enqueue_telegram(const xs_str *msg, const char *bot, const char *chat_id)
 /* enqueues a message to be sent via Telegram */
 {
     xs *qmsg   = _new_qmsg("telegram", msg, 0);
-    char *ntid = xs_dict_get(qmsg, "ntid");
+    const char *ntid = xs_dict_get(qmsg, "ntid");
     xs *fn     = xs_fmt("%s/queue/%s.json", srv_basedir, ntid);
 
     qmsg = xs_dict_append(qmsg, "bot",      bot);
@@ -2748,7 +2752,7 @@ void enqueue_ntfy(const xs_str *msg, const char *ntfy_server, const char *ntfy_t
 /* enqueues a message to be sent via ntfy */
 {
     xs *qmsg   = _new_qmsg("ntfy", msg, 0);
-    char *ntid = xs_dict_get(qmsg, "ntid");
+    const char *ntid = xs_dict_get(qmsg, "ntid");
     xs *fn     = xs_fmt("%s/queue/%s.json", srv_basedir, ntid);
 
     qmsg = xs_dict_append(qmsg, "ntfy_server", ntfy_server);
@@ -2764,7 +2768,7 @@ void enqueue_message(snac *snac, const xs_dict *msg)
 /* enqueues an output message */
 {
     xs *qmsg   = _new_qmsg("message", msg, 0);
-    char *ntid = xs_dict_get(qmsg, "ntid");
+    const char *ntid = xs_dict_get(qmsg, "ntid");
     xs *fn     = xs_fmt("%s/queue/%s.json", snac->basedir, ntid);
 
     qmsg = _enqueue_put(fn, qmsg);
@@ -2807,7 +2811,7 @@ void enqueue_verify_links(snac *user)
 /* enqueues a link verification */
 {
     xs *qmsg   = _new_qmsg("verify_links", "", 0);
-    char *ntid = xs_dict_get(qmsg, "ntid");
+    const char *ntid = xs_dict_get(qmsg, "ntid");
     xs *fn     = xs_fmt("%s/queue/%s.json", user->basedir, ntid);
 
     qmsg = _enqueue_put(fn, qmsg);
@@ -2832,42 +2836,6 @@ void enqueue_actor_refresh(snac *user, const char *actor, int forward_secs)
 }
 
 
-void enqueue_request_replies(snac *user, const char *id)
-/* enqueues a request for the replies of a message */
-{
-    /* test first if this precise request is already in the queue */
-    xs *queue = user_queue(user);
-    xs_list *p = queue;
-    xs_str *v;
-
-    while (xs_list_iter(&p, &v)) {
-        xs *q_item = queue_get(v);
-
-        if (q_item != NULL) {
-            const char *type = xs_dict_get(q_item, "type");
-            const char *msg  = xs_dict_get(q_item, "message");
-
-            if (type && msg && strcmp(type, "request_replies") == 0 && strcmp(msg, id) == 0) {
-                /* don't requeue */
-                snac_debug(user, 1, xs_fmt("enqueue_request_replies already here %s", id));
-                return;
-            }
-        }
-    }
-
-    /* not there; enqueue the request with a small delay */
-    xs *qmsg = _new_qmsg("request_replies", id, 0);
-    xs *ntid = tid(10);
-    xs *fn   = xs_fmt("%s/queue/%s.json", user->basedir, ntid);
-
-    qmsg = xs_dict_set(qmsg, "ntid", ntid);
-
-    qmsg = _enqueue_put(fn, qmsg);
-
-    snac_debug(user, 2, xs_fmt("enqueue_request_replies %s", id));
-}
-
-
 int was_question_voted(snac *user, const char *id)
 /* returns true if the user voted in this poll */
 {
@@ -2881,7 +2849,7 @@ int was_question_voted(snac *user, const char *id)
         xs *obj = NULL;
 
         if (valid_status(object_get_by_md5(md5, &obj))) {
-            char *atto = get_atto(obj);
+            const char *atto = get_atto(obj);
             if (atto && strcmp(atto, user->actor) == 0 &&
                 !xs_is_null(xs_dict_get(obj, "name"))) {
                 voted = 1;
@@ -3055,7 +3023,7 @@ void purge_server(void)
                 if (mtime_nl(v2, &n_link) < mt && n_link < 2) {
                     xs *s1    = xs_replace(v2, ".json", "");
                     xs *l     = xs_split(s1, "/");
-                    char *md5 = xs_list_get(l, -1);
+                    const char *md5 = xs_list_get(l, -1);
 
                     object_del_by_md5(md5);
                     cnt++;
@@ -3147,7 +3115,7 @@ void purge_user(snac *snac)
 /* do the purge for this user */
 {
     int priv_days, pub_days, user_days = 0;
-    char *v;
+    const char *v;
     int n;
 
     priv_days = xs_number_get(xs_dict_get(srv_config, "timeline_purge_days"));
@@ -3256,7 +3224,7 @@ void srv_archive(const char *direction, const char *url, xs_dict *req,
         if (p_size && payload) {
             xs *payload_fn = NULL;
             xs *payload_fn_raw = NULL;
-            char *v = xs_dict_get(req, "content-type");
+            const char *v = xs_dict_get(req, "content-type");
 
             if (v && xs_str_in(v, "json") != -1) {
                 payload_fn = xs_fmt("%s/payload.json", dir);
@@ -3287,7 +3255,7 @@ void srv_archive(const char *direction, const char *url, xs_dict *req,
 
         if (b_size && body) {
             xs *body_fn = NULL;
-            char *v = xs_dict_get(headers, "content-type");
+            const char *v = xs_dict_get(headers, "content-type");
 
             if (v && xs_str_in(v, "json") != -1) {
                 body_fn = xs_fmt("%s/body.json", dir);
@@ -3356,7 +3324,7 @@ void srv_archive_error(const char *prefix, const xs_str *err,
 }
 
 
-void srv_archive_qitem(char *prefix, xs_dict *q_item)
+void srv_archive_qitem(const char *prefix, xs_dict *q_item)
 /* archives a q_item in the error folder */
 {
     xs *ntid = tid(0);