Changeset cc6fdf8 for protocols/twitter/twitter_lib.c

Timestamp:

2012-12-22T00:14:26Z (11 years ago)

Author:

Wilmer van der Gaast <wilmer@…>

Branches:

master

Children:

7d5afa6

Parents:

92d3044 (diff), 573e274 (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

Merging JSON branch. It's very stable by now, and I want more testers.

File:

• protocols/twitter/twitter_lib.c (modified) (40 diffs)

protocols/twitter/twitter_lib.c

@@ -35 +35 @@
 #include "misc.h"
 #include "base64.h"
-#include "xmltree.h"
 #include "twitter_lib.h"
+#include "json_util.h"
 #include <ctype.h>
 #include <errno.h>
@@ -67 +67 @@
         char *text;
         struct twitter_xml_user *user;
-        guint64 id, reply_to;
+        guint64 id, rt_id; /* Usually equal, with RTs id == *original* id */
+        guint64 reply_to;
 };
-
-static void twitter_groupchat_init(struct im_connection *ic);
 
 /**
@@ -148 +147 @@
         // Check if the buddy is already in the buddy list.
         if (!bee_user_by_handle(ic->bee, ic, name)) {
-                char *mode = set_getstr(&ic->acc->set, "mode");
-
                 // The buddy is not in the list, add the buddy and set the status to logged in.
                 imcb_add_buddy(ic, name, NULL);
                 imcb_rename_buddy(ic, name, fullname);
-                if (g_strcasecmp(mode, "chat") == 0) {
+                if (td->flags & TWITTER_MODE_CHAT) {
                         /* Necessary so that nicks always get translated to the
                            exact Twitter username. */
                         imcb_buddy_nick_hint(ic, name, name);
-                        imcb_chat_add_buddy(td->timeline_gc, name);
-                } else if (g_strcasecmp(mode, "many") == 0)
+                        if (td->timeline_gc)
+                                imcb_chat_add_buddy(td->timeline_gc, name);
+                } else if (td->flags & TWITTER_MODE_MANY)
                         imcb_buddy_status(ic, name, OPT_LOGGED_IN, NULL, NULL);
         }
@@ -168 +166 @@
 {
         static char *ret = NULL;
-        struct xt_node *root, *node, *err;
+        json_value *root, *err;
 
         g_free(ret);
@@ -174 +172 @@
 
         if (req->body_size > 0) {
-                root = xt_from_string(req->reply_body, req->body_size);
-                
-                for (node = root; node; node = node->next)
-                        if ((err = xt_find_node(node->children, "error")) && err->text_len > 0) {
-                                ret = g_strdup_printf("%s (%s)", req->status_string, err->text);
-                                break;
-                        }
-
-                xt_free_node(root);
+                root = json_parse(req->reply_body);
+                err = json_o_get(root, "errors");
+                if (err && err->type == json_array && (err = err->u.array.values[0]) &&
+                    err->type == json_object) {
+                        const char *msg = json_o_str(err, "message");
+                        if (msg)
+                                ret = g_strdup_printf("%s (%s)", req->status_string, msg);
+                }
+                json_value_free(root);
         }
 
@@ -188 +186 @@
 }
 
-static struct xt_node *twitter_parse_response(struct im_connection *ic, struct http_request *req)
+/* WATCH OUT: This function might or might not destroy your connection.
+   Sub-optimal indeed, but just be careful when this returns NULL! */
+static json_value *twitter_parse_response(struct im_connection *ic, struct http_request *req)
 {
         gboolean logging_in = !(ic->flags & OPT_LOGGED_IN);
         gboolean periodic;
         struct twitter_data *td = ic->proto_data;
-        struct xt_node *ret;
+        json_value *ret;
         char path[64] = "", *s;
         
@@ -211 +211 @@
                    throwing 401s so I'll keep treating this one as fatal
                    only during login. */
-                imcb_error(ic, "Authentication failure");
+                imcb_error(ic, "Authentication failure (%s)",
+                               twitter_parse_error(req));
                 imc_logout(ic, FALSE);
                 return NULL;
@@ -217 +218 @@
                 // It didn't go well, output the error and return.
                 if (!periodic || logging_in || ++td->http_fails >= 5)
-                        imcb_error(ic, "Could not retrieve %s: %s",
-                                   path, twitter_parse_error(req));
+                        twitter_log(ic, "Error: Could not retrieve %s: %s",
+                                    path, twitter_parse_error(req));
                 
                 if (logging_in)
@@ -227 +228 @@
         }
 
-        if ((ret = xt_from_string(req->reply_body, req->body_size)) == NULL) {
+        if ((ret = json_parse(req->reply_body)) == NULL) {
                 imcb_error(ic, "Could not retrieve %s: %s",
                            path, "XML parse error");
@@ -251 +252 @@
 
 /**
- * Function to help fill a list.
- */
-static xt_status twitter_xt_next_cursor(struct xt_node *node, struct twitter_xml_list *txl)
-{
-        char *end = NULL;
-
-        if (node->text)
-                txl->next_cursor = g_ascii_strtoll(node->text, &end, 10);
-        if (end == NULL)
-                txl->next_cursor = -1;
-
-        return XT_HANDLED;
-}
-
-/**
  * Fill a list of ids.
  */
-static xt_status twitter_xt_get_friends_id_list(struct xt_node *node, struct twitter_xml_list *txl)
-{
-        struct xt_node *child;
+static gboolean twitter_xt_get_friends_id_list(json_value *node, struct twitter_xml_list *txl)
+{
+        json_value *c;
+        int i;
 
         // Set the list type.
         txl->type = TXL_ID;
 
-        // The root <statuses> node should hold the list of statuses <status>
-        // Walk over the nodes children.
-        for (child = node->children; child; child = child->next) {
-                if (g_strcasecmp("ids", child->name) == 0) {
-                        struct xt_node *idc;
-                        for (idc = child->children; idc; idc = idc->next)
-                                if (g_strcasecmp(idc->name, "id") == 0)
-                                        txl->list = g_slist_prepend(txl->list,
-                                                g_memdup(idc->text, idc->text_len + 1));
-                } else if (g_strcasecmp("next_cursor", child->name) == 0) {
-                        twitter_xt_next_cursor(child, txl);
-                }
-        }
-
-        return XT_HANDLED;
+        c = json_o_get(node, "ids");
+        if (!c || c->type != json_array)
+                return FALSE;
+
+        for (i = 0; i < c->u.array.length; i ++) {
+                if (c->u.array.values[i]->type != json_integer)
+                        continue;
+                
+                txl->list = g_slist_prepend(txl->list,
+                        g_strdup_printf("%lld", c->u.array.values[i]->u.integer));
+        }
+        
+        c = json_o_get(node, "next_cursor");
+        if (c && c->type == json_integer)
+                txl->next_cursor = c->u.integer;
+        else
+                txl->next_cursor = -1;
+        
+        return TRUE;
 }
 
@@ -300 +291 @@
 {
         struct im_connection *ic;
-        struct xt_node *parsed;
+        json_value *parsed;
         struct twitter_xml_list *txl;
         struct twitter_data *td;
@@ -312 +303 @@
         td = ic->proto_data;
 
-        /* Create the room now that we "logged in". */
-        if (!td->timeline_gc && g_strcasecmp(set_getstr(&ic->acc->set, "mode"), "chat") == 0)
-                twitter_groupchat_init(ic);
-
         txl = g_new0(struct twitter_xml_list, 1);
         txl->list = td->follow_ids;
@@ -322 +309 @@
         if (!(parsed = twitter_parse_response(ic, req)))
                 return;
+        
         twitter_xt_get_friends_id_list(parsed, txl);
-        xt_free_node(parsed);
+        json_value_free(parsed);
 
         td->follow_ids = txl->list;
@@ -338 +326 @@
 }
 
-static xt_status twitter_xt_get_users(struct xt_node *node, struct twitter_xml_list *txl);
+static gboolean twitter_xt_get_users(json_value *node, struct twitter_xml_list *txl);
 static void twitter_http_get_users_lookup(struct http_request *req);
 
@@ -379 +367 @@
 {
         struct im_connection *ic = req->data;
-        struct xt_node *parsed;
+        json_value *parsed;
         struct twitter_xml_list *txl;
         GSList *l = NULL;
@@ -395 +383 @@
                 return;
         twitter_xt_get_users(parsed, txl);
-        xt_free_node(parsed);
+        json_value_free(parsed);
 
         // Add the users as buddies.
@@ -409 +397 @@
 }
 
-/**
- * Function to fill a twitter_xml_user struct.
- * It sets:
- *  - the name and
- *  - the screen_name.
- */
-static xt_status twitter_xt_get_user(struct xt_node *node, struct twitter_xml_user *txu)
-{
-        struct xt_node *child;
-
-        // Walk over the nodes children.
-        for (child = node->children; child; child = child->next) {
-                if (g_strcasecmp("name", child->name) == 0) {
-                        txu->name = g_memdup(child->text, child->text_len + 1);
-                } else if (g_strcasecmp("screen_name", child->name) == 0) {
-                        txu->screen_name = g_memdup(child->text, child->text_len + 1);
-                }
-        }
-        return XT_HANDLED;
+struct twitter_xml_user *twitter_xt_get_user(const json_value *node)
+{
+        struct twitter_xml_user *txu;
+        
+        txu = g_new0(struct twitter_xml_user, 1);
+        txu->name = g_strdup(json_o_str(node, "name"));
+        txu->screen_name = g_strdup(json_o_str(node, "screen_name"));
+        
+        return txu;
 }
 
@@ -435 +413 @@
  *  - all <user>s from the <users> element.
  */
-static xt_status twitter_xt_get_users(struct xt_node *node, struct twitter_xml_list *txl)
+static gboolean twitter_xt_get_users(json_value *node, struct twitter_xml_list *txl)
 {
         struct twitter_xml_user *txu;
-        struct xt_node *child;
+        int i;
 
         // Set the type of the list.
         txl->type = TXL_USER;
 
+        if (!node || node->type != json_array)
+                return FALSE;
+
         // The root <users> node should hold the list of users <user>
         // Walk over the nodes children.
-        for (child = node->children; child; child = child->next) {
-                if (g_strcasecmp("user", child->name) == 0) {
-                        txu = g_new0(struct twitter_xml_user, 1);
-                        twitter_xt_get_user(child, txu);
-                        // Put the item in the front of the list.
+        for (i = 0; i < node->u.array.length; i ++) {
+                txu = twitter_xt_get_user(node->u.array.values[i]);
+                if (txu)
                         txl->list = g_slist_prepend(txl->list, txu);
-                }
-        }
-
-        return XT_HANDLED;
+        }
+
+        return TRUE;
 }
 
@@ -462 +440 @@
 #define TWITTER_TIME_FORMAT "%a %b %d %H:%M:%S +0000 %Y"
 #endif
+
+static char* expand_entities(char* text, const json_value *entities);
 
 /**
@@ -471 +451 @@
  *  - the user in a twitter_xml_user struct.
  */
-static xt_status twitter_xt_get_status(struct xt_node *node, struct twitter_xml_status *txs)
-{
-        struct xt_node *child, *rt = NULL;
-
-        // Walk over the nodes children.
-        for (child = node->children; child; child = child->next) {
-                if (g_strcasecmp("text", child->name) == 0) {
-                        txs->text = g_memdup(child->text, child->text_len + 1);
-                } else if (g_strcasecmp("retweeted_status", child->name) == 0) {
-                        rt = child;
-                } else if (g_strcasecmp("created_at", child->name) == 0) {
+static struct twitter_xml_status *twitter_xt_get_status(const json_value *node)
+{
+        struct twitter_xml_status *txs;
+        const json_value *rt = NULL, *entities = NULL;
+        
+        if (node->type != json_object)
+                return FALSE;
+        txs = g_new0(struct twitter_xml_status, 1);
+
+        JSON_O_FOREACH (node, k, v) {
+                if (strcmp("text", k) == 0 && v->type == json_string) {
+                        txs->text = g_memdup(v->u.string.ptr, v->u.string.length + 1);
+                        strip_html(txs->text);
+                } else if (strcmp("retweeted_status", k) == 0 && v->type == json_object) {
+                        rt = v;
+                } else if (strcmp("created_at", k) == 0 && v->type == json_string) {
                         struct tm parsed;
 
@@ -487 +472 @@
                            this field. :-( Also assumes the timezone used
                            is UTC since C time handling functions suck. */
-                        if (strptime(child->text, TWITTER_TIME_FORMAT, &parsed) != NULL)
+                        if (strptime(v->u.string.ptr, TWITTER_TIME_FORMAT, &parsed) != NULL)
                                 txs->created_at = mktime_utc(&parsed);
-                } else if (g_strcasecmp("user", child->name) == 0) {
-                        txs->user = g_new0(struct twitter_xml_user, 1);
-                        twitter_xt_get_user(child, txs->user);
-                } else if (g_strcasecmp("id", child->name) == 0) {
-                        txs->id = g_ascii_strtoull(child->text, NULL, 10);
-                } else if (g_strcasecmp("in_reply_to_status_id", child->name) == 0) {
-                        txs->reply_to = g_ascii_strtoull(child->text, NULL, 10);
+                } else if (strcmp("user", k) == 0 && v->type == json_object) {
+                        txs->user = twitter_xt_get_user(v);
+                } else if (strcmp("id", k) == 0 && v->type == json_integer) {
+                        txs->rt_id = txs->id = v->u.integer;
+                } else if (strcmp("in_reply_to_status_id", k) == 0 && v->type == json_integer) {
+                        txs->reply_to = v->u.integer;
+                } else if (strcmp("entities", k) == 0 && v->type == json_object) {
+                        entities = v;
                 }
         }
@@ -502 +488 @@
            wasn't truncated because it may be lying. */
         if (rt) {
-                struct twitter_xml_status *rtxs = g_new0(struct twitter_xml_status, 1);
-                if (twitter_xt_get_status(rt, rtxs) != XT_HANDLED) {
+                struct twitter_xml_status *rtxs = twitter_xt_get_status(rt);
+                if (rtxs) {
+                        g_free(txs->text);
+                        txs->text = g_strdup_printf("RT @%s: %s", rtxs->user->screen_name, rtxs->text);
+                        txs->id = rtxs->id;
                         txs_free(rtxs);
-                        return XT_HANDLED;
-                }
-
-                g_free(txs->text);
-                txs->text = g_strdup_printf("RT @%s: %s", rtxs->user->screen_name, rtxs->text);
-                txs_free(rtxs);
-        } else {
-                struct xt_node *urls, *url;
+                }
+        } else if (entities) {
+                txs->text = expand_entities(txs->text, entities);
+        }
+
+        if (txs->text && txs->user && txs->id)
+                return txs;
+        
+        txs_free(txs);
+        return NULL;
+}
+
+/**
+ * Function to fill a twitter_xml_status struct (DM variant).
+ */
+static struct twitter_xml_status *twitter_xt_get_dm(const json_value *node)
+{
+        struct twitter_xml_status *txs;
+        const json_value *entities = NULL;
+        
+        if (node->type != json_object)
+                return FALSE;
+        txs = g_new0(struct twitter_xml_status, 1);
+
+        JSON_O_FOREACH (node, k, v) {
+                if (strcmp("text", k) == 0 && v->type == json_string) {
+                        txs->text = g_memdup(v->u.string.ptr, v->u.string.length + 1);
+                        strip_html(txs->text);
+                } else if (strcmp("created_at", k) == 0 && v->type == json_string) {
+                        struct tm parsed;
+
+                        /* Very sensitive to changes to the formatting of
+                           this field. :-( Also assumes the timezone used
+                           is UTC since C time handling functions suck. */
+                        if (strptime(v->u.string.ptr, TWITTER_TIME_FORMAT, &parsed) != NULL)
+                                txs->created_at = mktime_utc(&parsed);
+                } else if (strcmp("sender", k) == 0 && v->type == json_object) {
+                        txs->user = twitter_xt_get_user(v);
+                } else if (strcmp("id", k) == 0 && v->type == json_integer) {
+                        txs->id = v->u.integer;
+                }
+        }
+
+        if (entities) {
+                txs->text = expand_entities(txs->text, entities);
+        }
+
+        if (txs->text && txs->user && txs->id)
+                return txs;
+        
+        txs_free(txs);
+        return NULL;
+}
+
+static char* expand_entities(char* text, const json_value *entities) {
+        JSON_O_FOREACH (entities, k, v) {
+                int i;
                 
-                urls = xt_find_path(node, "entities");
-                if (urls != NULL)
-                        urls = urls->children;
-                for (; urls; urls = urls->next) {
-                        if (strcmp(urls->name, "urls") != 0 && strcmp(urls->name, "media") != 0)
+                if (v->type != json_array)
+                        continue;
+                if (strcmp(k, "urls") != 0 && strcmp(k, "media") != 0)
+                        continue;
+                
+                for (i = 0; i < v->u.array.length; i ++) {
+                        if (v->u.array.values[i]->type != json_object)
                                 continue;
                         
-                        for (url = urls ? urls->children : NULL; url; url = url->next) {
-                                /* "short" is a reserved word. :-P */
-                                struct xt_node *kort = xt_find_node(url->children, "url");
-                                struct xt_node *disp = xt_find_node(url->children, "display_url");
-                                char *pos, *new;
-                                
-                                if (!kort || !kort->text || !disp || !disp->text ||
-                                    !(pos = strstr(txs->text, kort->text)))
-                                        continue;
-                                
-                                *pos = '\0';
-                                new = g_strdup_printf("%s%s &lt;%s&gt;%s", txs->text, kort->text,
-                                                      disp->text, pos + strlen(kort->text));
-                                
-                                g_free(txs->text);
-                                txs->text = new;
-                        }
-                }
-        }
-
-        return XT_HANDLED;
+                        const char *kort = json_o_str(v->u.array.values[i], "url");
+                        const char *disp = json_o_str(v->u.array.values[i], "display_url");
+                        char *pos, *new;
+                        
+                        if (!kort || !disp || !(pos = strstr(text, kort)))
+                                continue;
+                        
+                        *pos = '\0';
+                        new = g_strdup_printf("%s%s <%s>%s", text, kort,
+                                              disp, pos + strlen(kort));
+                        
+                        g_free(text);
+                        text = new;
+                }
+        }
+        
+        return text;
 }
 
@@ -550 +586 @@
  *  - the next_cursor.
  */
-static xt_status twitter_xt_get_status_list(struct im_connection *ic, struct xt_node *node,
-                                            struct twitter_xml_list *txl)
+static gboolean twitter_xt_get_status_list(struct im_connection *ic, const json_value *node,
+                                           struct twitter_xml_list *txl)
 {
         struct twitter_xml_status *txs;
-        struct xt_node *child;
-        bee_user_t *bu;
+        int i;
 
         // Set the type of the list.
         txl->type = TXL_STATUS;
+        
+        if (node->type != json_array)
+                return FALSE;
 
         // The root <statuses> node should hold the list of statuses <status>
         // Walk over the nodes children.
-        for (child = node->children; child; child = child->next) {
-                if (g_strcasecmp("status", child->name) == 0) {
-                        txs = g_new0(struct twitter_xml_status, 1);
-                        twitter_xt_get_status(child, txs);
-                        // Put the item in the front of the list.
-                        txl->list = g_slist_prepend(txl->list, txs);
-
-                        if (txs->user && txs->user->screen_name &&
-                            (bu = bee_user_by_handle(ic->bee, ic, txs->user->screen_name))) {
-                                struct twitter_user_data *tud = bu->data;
-
-                                if (txs->id > tud->last_id) {
-                                        tud->last_id = txs->id;
-                                        tud->last_time = txs->created_at;
-                                }
-                        }
-                } else if (g_strcasecmp("next_cursor", child->name) == 0) {
-                        twitter_xt_next_cursor(child, txl);
-                }
-        }
-
-        return XT_HANDLED;
-}
-
+        for (i = 0; i < node->u.array.length; i ++) {
+                txs = twitter_xt_get_status(node->u.array.values[i]);
+                if (!txs)
+                        continue;
+                
+                txl->list = g_slist_prepend(txl->list, txs);
+        }
+
+        return TRUE;
+}
+
+/* Will log messages either way. Need to keep track of IDs for stream deduping.
+   Plus, show_ids is on by default and I don't see why anyone would disable it. */
 static char *twitter_msg_add_id(struct im_connection *ic,
                                 struct twitter_xml_status *txs, const char *prefix)
 {
         struct twitter_data *td = ic->proto_data;
-        char *ret = NULL;
-
-        if (!set_getbool(&ic->acc->set, "show_ids")) {
+        int reply_to = -1;
+        bee_user_t *bu;
+
+        if (txs->reply_to) {
+                int i;
+                for (i = 0; i < TWITTER_LOG_LENGTH; i++)
+                        if (td->log[i].id == txs->reply_to) {
+                                reply_to = i;
+                                break;
+                        }
+        }
+
+        if (txs->user && txs->user->screen_name &&
+            (bu = bee_user_by_handle(ic->bee, ic, txs->user->screen_name))) {
+                struct twitter_user_data *tud = bu->data;
+
+                if (txs->id > tud->last_id) {
+                        tud->last_id = txs->id;
+                        tud->last_time = txs->created_at;
+                }
+        }
+        
+        td->log_id = (td->log_id + 1) % TWITTER_LOG_LENGTH;
+        td->log[td->log_id].id = txs->id;
+        td->log[td->log_id].bu = bee_user_by_handle(ic->bee, ic, txs->user->screen_name);
+        
+        /* This is all getting hairy. :-( If we RT'ed something ourselves,
+           remember OUR id instead so undo will work. In other cases, the
+           original tweet's id should be remembered for deduplicating. */
+        if (strcmp(txs->user->screen_name, td->user) == 0)
+                td->log[td->log_id].id = txs->rt_id;
+        
+        if (set_getbool(&ic->acc->set, "show_ids")) {
+                if (reply_to != -1)
+                        return g_strdup_printf("\002[\002%02x->%02x\002]\002 %s%s",
+                                               td->log_id, reply_to, prefix, txs->text);
+                else
+                        return g_strdup_printf("\002[\002%02x\002]\002 %s%s",
+                                               td->log_id, prefix, txs->text);
+        } else {
                 if (*prefix)
                         return g_strconcat(prefix, txs->text, NULL);
@@ -598 +662 @@
                         return NULL;
         }
-
-        td->log[td->log_id].id = txs->id;
-        td->log[td->log_id].bu = bee_user_by_handle(ic->bee, ic, txs->user->screen_name);
-        if (txs->reply_to) {
-                int i;
-                for (i = 0; i < TWITTER_LOG_LENGTH; i++)
-                        if (td->log[i].id == txs->reply_to) {
-                                ret = g_strdup_printf("\002[\002%02d->%02d\002]\002 %s%s",
-                                                      td->log_id, i, prefix, txs->text);
-                                break;
-                        }
-        }
-        if (ret == NULL)
-                ret = g_strdup_printf("\002[\002%02d\002]\002 %s%s", td->log_id, prefix, txs->text);
-        td->log_id = (td->log_id + 1) % TWITTER_LOG_LENGTH;
-
-        return ret;
-}
-
-static void twitter_groupchat_init(struct im_connection *ic)
-{
-        char *name_hint;
+}
+
+/**
+ * Function that is called to see the statuses in a groupchat window.
+ */
+static void twitter_status_show_chat(struct im_connection *ic, struct twitter_xml_status *status)
+{
+        struct twitter_data *td = ic->proto_data;
         struct groupchat *gc;
-        struct twitter_data *td = ic->proto_data;
-        GSList *l;
-
-        td->timeline_gc = gc = imcb_chat_new(ic, "twitter/timeline");
-
-        name_hint = g_strdup_printf("%s_%s", td->prefix, ic->acc->user);
-        imcb_chat_name_hint(gc, name_hint);
-        g_free(name_hint);
-
-        for (l = ic->bee->users; l; l = l->next) {
-                bee_user_t *bu = l->data;
-                if (bu->ic == ic)
-                        imcb_chat_add_buddy(td->timeline_gc, bu->handle);
-        }
-}
-
-/**
- * Function that is called to see the statuses in a groupchat window.
- */
-static void twitter_groupchat(struct im_connection *ic, GSList * list)
-{
-        struct twitter_data *td = ic->proto_data;
-        GSList *l = NULL;
-        struct twitter_xml_status *status;
-        struct groupchat *gc;
-        guint64 last_id = 0;
+        gboolean me = g_strcasecmp(td->user, status->user->screen_name) == 0;
+        char *msg;
 
         // Create a new groupchat if it does not exsist.
-        if (!td->timeline_gc)
-                twitter_groupchat_init(ic);
-
-        gc = td->timeline_gc;
-        if (!gc->joined)
-                imcb_chat_add_buddy(gc, ic->acc->user);
-
-        for (l = list; l; l = g_slist_next(l)) {
-                char *msg;
-
-                status = l->data;
-                if (status->user == NULL || status->text == NULL || last_id == status->id)
-                        continue;
-
-                last_id = status->id;
-
-                strip_html(status->text);
-
-                if (set_getbool(&ic->acc->set, "strip_newlines"))
-                        strip_newlines(status->text);
-
-                msg = twitter_msg_add_id(ic, status, "");
-
-                // Say it!
-                if (g_strcasecmp(td->user, status->user->screen_name) == 0) {
-                        imcb_chat_log(gc, "You: %s", msg ? msg : status->text);
-                } else {
-                        twitter_add_buddy(ic, status->user->screen_name, status->user->name);
-
-                        imcb_chat_msg(gc, status->user->screen_name,
-                                      msg ? msg : status->text, 0, status->created_at);
-                }
-
-                g_free(msg);
-
-                // Update the timeline_id to hold the highest id, so that by the next request
-                // we won't pick up the updates already in the list.
-                td->timeline_id = MAX(td->timeline_id, status->id);
-        }
+        gc = twitter_groupchat_init(ic);
+
+        if (!me)
+                /* MUST be done before twitter_msg_add_id() to avoid #872. */
+                twitter_add_buddy(ic, status->user->screen_name, status->user->name);
+        msg = twitter_msg_add_id(ic, status, "");
+        
+        // Say it!
+        if (me) {
+                imcb_chat_log(gc, "You: %s", msg ? msg : status->text);
+        } else {
+                imcb_chat_msg(gc, status->user->screen_name,
+                              msg ? msg : status->text, 0, status->created_at);
+        }
+
+        g_free(msg);
 }
 
@@ -693 +696 @@
  * Function that is called to see statuses as private messages.
  */
-static void twitter_private_message_chat(struct im_connection *ic, GSList * list)
-{
-        struct twitter_data *td = ic->proto_data;
-        GSList *l = NULL;
-        struct twitter_xml_status *status;
-        char from[MAX_STRING];
-        gboolean mode_one;
-        guint64 last_id = 0;
-
-        mode_one = g_strcasecmp(set_getstr(&ic->acc->set, "mode"), "one") == 0;
-
-        if (mode_one) {
+static void twitter_status_show_msg(struct im_connection *ic, struct twitter_xml_status *status)
+{
+        struct twitter_data *td = ic->proto_data;
+        char from[MAX_STRING] = "";
+        char *prefix = NULL, *text = NULL;
+        gboolean me = g_strcasecmp(td->user, status->user->screen_name) == 0;
+
+        if (td->flags & TWITTER_MODE_ONE) {
                 g_snprintf(from, sizeof(from) - 1, "%s_%s", td->prefix, ic->acc->user);
                 from[MAX_STRING - 1] = '\0';
         }
 
-        for (l = list; l; l = g_slist_next(l)) {
-                char *prefix = NULL, *text = NULL;
-
-                status = l->data;
-                if (status->user == NULL || status->text == NULL || last_id == status->id)
-                        continue;
-
-                last_id = status->id;
-
-                strip_html(status->text);
-                if (mode_one)
-                        prefix = g_strdup_printf("\002<\002%s\002>\002 ",
-                                                 status->user->screen_name);
-                else
-                        twitter_add_buddy(ic, status->user->screen_name, status->user->name);
-
-                text = twitter_msg_add_id(ic, status, prefix ? prefix : "");
-
-                imcb_buddy_msg(ic,
-                               mode_one ? from : status->user->screen_name,
-                               text ? text : status->text, 0, status->created_at);
-
-                // Update the timeline_id to hold the highest id, so that by the next request
-                // we won't pick up the updates already in the list.
-                td->timeline_id = MAX(td->timeline_id, status->id);
-
-                g_free(text);
-                g_free(prefix);
-        }
-}
-
-static void twitter_http_get_home_timeline(struct http_request *req);
-static void twitter_http_get_mentions(struct http_request *req);
+        if (td->flags & TWITTER_MODE_ONE)
+                prefix = g_strdup_printf("\002<\002%s\002>\002 ",
+                                         status->user->screen_name);
+        else if (!me)
+                twitter_add_buddy(ic, status->user->screen_name, status->user->name);
+        else
+                prefix = g_strdup("You: ");
+
+        text = twitter_msg_add_id(ic, status, prefix ? prefix : "");
+
+        imcb_buddy_msg(ic,
+                       *from ? from : status->user->screen_name,
+                       text ? text : status->text, 0, status->created_at);
+
+        g_free(text);
+        g_free(prefix);
+}
+
+static void twitter_status_show(struct im_connection *ic, struct twitter_xml_status *status)
+{
+        struct twitter_data *td = ic->proto_data;
+        
+        if (status->user == NULL || status->text == NULL)
+                return;
+        
+        /* Grrrr. Would like to do this during parsing, but can't access
+           settings from there. */
+        if (set_getbool(&ic->acc->set, "strip_newlines"))
+                strip_newlines(status->text);
+        
+        if (td->flags & TWITTER_MODE_CHAT)
+                twitter_status_show_chat(ic, status);
+        else
+                twitter_status_show_msg(ic, status);
+
+        // Update the timeline_id to hold the highest id, so that by the next request
+        // we won't pick up the updates already in the list.
+        td->timeline_id = MAX(td->timeline_id, status->rt_id);
+}
+
+static gboolean twitter_stream_handle_object(struct im_connection *ic, json_value *o);
+
+static void twitter_http_stream(struct http_request *req)
+{
+        struct im_connection *ic = req->data;
+        struct twitter_data *td;
+        json_value *parsed;
+        int len = 0;
+        char c, *nl;
+        
+        if (!g_slist_find(twitter_connections, ic))
+                return;
+        
+        ic->flags |= OPT_PONGED;
+        td = ic->proto_data;
+        
+        if ((req->flags & HTTPC_EOF) || !req->reply_body) {
+                td->stream = NULL;
+                imcb_error(ic, "Stream closed (%s)", req->status_string);
+                imc_logout(ic, TRUE);
+                return;
+        }
+        
+        printf( "%d bytes in stream\n", req->body_size );
+        
+        /* MUST search for CRLF, not just LF:
+           https://dev.twitter.com/docs/streaming-apis/processing#Parsing_responses */
+        nl = strstr(req->reply_body, "\r\n");
+        
+        if (!nl) {
+                printf("Incomplete data\n");
+                return;
+        }
+        
+        len = nl - req->reply_body;
+        if (len > 0) {
+                c = req->reply_body[len];
+                req->reply_body[len] = '\0';
+                
+                printf("JSON: %s\n", req->reply_body);
+                printf("parsed: %p\n", (parsed = json_parse(req->reply_body)));
+                if (parsed) {
+                        twitter_stream_handle_object(ic, parsed);
+                }
+                json_value_free(parsed);
+                req->reply_body[len] = c;
+        }
+        
+        http_flush_bytes(req, len + 2);
+        
+        /* One notification might bring multiple events! */
+        if (req->body_size > 0)
+                twitter_http_stream(req);
+}
+
+static gboolean twitter_stream_handle_event(struct im_connection *ic, json_value *o);
+static gboolean twitter_stream_handle_status(struct im_connection *ic, struct twitter_xml_status *txs);
+
+static gboolean twitter_stream_handle_object(struct im_connection *ic, json_value *o)
+{
+        struct twitter_data *td = ic->proto_data;
+        struct twitter_xml_status *txs;
+        json_value *c;
+        
+        if ((txs = twitter_xt_get_status(o))) {
+                gboolean ret = twitter_stream_handle_status(ic, txs);
+                txs_free(txs);
+                return ret;
+        } else if ((c = json_o_get(o, "direct_message")) &&
+                   (txs = twitter_xt_get_dm(c))) {
+                if (strcmp(txs->user->screen_name, td->user) != 0)
+                        imcb_buddy_msg(ic, txs->user->screen_name,
+                                       txs->text, 0, txs->created_at);
+                txs_free(txs);
+                return TRUE;
+        } else if ((c = json_o_get(o, "event")) && c->type == json_string) {
+                twitter_stream_handle_event(ic, o);
+                return TRUE;
+        } else if ((c = json_o_get(o, "disconnect")) && c->type == json_object) {
+                /* HACK: Because we're inside an event handler, we can't just
+                   disconnect here. Instead, just change the HTTP status string
+                   into a Twitter status string. */
+                char *reason = json_o_strdup(c, "reason");
+                if (reason) {
+                        g_free(td->stream->status_string);
+                        td->stream->status_string = reason;
+                }
+                return TRUE;
+        }
+        return FALSE;
+}
+
+static gboolean twitter_stream_handle_status(struct im_connection *ic, struct twitter_xml_status *txs)
+{
+        struct twitter_data *td = ic->proto_data;
+        int i;
+        
+        for (i = 0; i < TWITTER_LOG_LENGTH; i++) {
+                if (td->log[i].id == txs->id) {
+                        /* Got a duplicate (RT, probably). Drop it. */
+                        return TRUE;
+                }
+        }
+        
+        if (!(strcmp(txs->user->screen_name, td->user) == 0 ||
+              set_getbool(&ic->acc->set, "fetch_mentions") ||
+              bee_user_by_handle(ic->bee, ic, txs->user->screen_name))) {
+                /* Tweet is from an unknown person and the user does not want
+                   to see @mentions, so drop it. twitter_stream_handle_event()
+                   picks up new follows so this simple filter should be safe. */
+                /* TODO: The streaming API seems to do poor @mention matching.
+                   I.e. I'm getting mentions for @WilmerSomething, not just for
+                   @Wilmer. But meh. You want spam, you get spam. */
+                return TRUE;
+        }
+        
+        twitter_status_show(ic, txs);
+        
+        return TRUE;
+}
+
+static gboolean twitter_stream_handle_event(struct im_connection *ic, json_value *o)
+{
+        struct twitter_data *td = ic->proto_data;
+        json_value *source = json_o_get(o, "source");
+        json_value *target = json_o_get(o, "target");
+        const char *type = json_o_str(o, "event");
+        
+        if (!type || !source || source->type != json_object
+                  || !target || target->type != json_object) {
+                return FALSE;
+        }
+        
+        if (strcmp(type, "follow") == 0) {
+                struct twitter_xml_user *us = twitter_xt_get_user(source);
+                struct twitter_xml_user *ut = twitter_xt_get_user(target);
+                if (strcmp(us->screen_name, td->user) == 0) {
+                        twitter_add_buddy(ic, ut->screen_name, ut->name);
+                }
+                txu_free(us);
+                txu_free(ut);
+        }
+        
+        return TRUE;
+}
+
+gboolean twitter_open_stream(struct im_connection *ic)
+{
+        struct twitter_data *td = ic->proto_data;
+        char *args[2] = {"with", "followings"};
+        
+        if ((td->stream = twitter_http(ic, TWITTER_USER_STREAM_URL,
+                                       twitter_http_stream, ic, 0, args, 2))) {
+                /* This flag must be enabled or we'll get no data until EOF
+                   (which err, kind of, defeats the purpose of a streaming API). */
+                td->stream->flags |= HTTPC_STREAMING;
+                return TRUE;
+        }
+        
+        return FALSE;
+}
+
+static void twitter_get_home_timeline(struct im_connection *ic, gint64 next_cursor);
+static void twitter_get_mentions(struct im_connection *ic, gint64 next_cursor);
 
 /**
@@ -778 +948 @@
         struct twitter_xml_list *home_timeline = td->home_timeline_obj;
         struct twitter_xml_list *mentions = td->mentions_obj;
+        guint64 last_id = 0;
         GSList *output = NULL;
         GSList *l;
 
+        imcb_connected(ic);
+        
         if (!(td->flags & TWITTER_GOT_TIMELINE)) {
                 return;
@@ -804 +977 @@
                 }
         }
-        
-        if (!(ic->flags & OPT_LOGGED_IN))
-                imcb_connected(ic);
 
         // See if the user wants to see the messages in a groupchat window or as private messages.
-        if (g_strcasecmp(set_getstr(&ic->acc->set, "mode"), "chat") == 0)
-                twitter_groupchat(ic, output);
-        else
-                twitter_private_message_chat(ic, output);
-
-        g_slist_free(output);
+        while (output) {
+                struct twitter_xml_status *txs = output->data;
+                if (txs->id != last_id)
+                        twitter_status_show(ic, txs);
+                last_id = txs->id;
+                output = g_slist_remove(output, txs);
+        }
 
         txl_free(home_timeline);
@@ -823 +994 @@
 }
 
+static void twitter_http_get_home_timeline(struct http_request *req);
+static void twitter_http_get_mentions(struct http_request *req);
+
 /**
  * Get the timeline.
  */
-void twitter_get_home_timeline(struct im_connection *ic, gint64 next_cursor)
+static void twitter_get_home_timeline(struct im_connection *ic, gint64 next_cursor)
 {
         struct twitter_data *td = ic->proto_data;
@@ -862 +1036 @@
  * Get mentions.
  */
-void twitter_get_mentions(struct im_connection *ic, gint64 next_cursor)
+static void twitter_get_mentions(struct im_connection *ic, gint64 next_cursor)
 {
         struct twitter_data *td = ic->proto_data;
@@ -893 +1067 @@
 
         g_free(args[1]);
-        if (td->timeline_id) {
-                g_free(args[5]);
-        }
+        g_free(args[5]);
 }
 
@@ -905 +1077 @@
         struct im_connection *ic = req->data;
         struct twitter_data *td;
-        struct xt_node *parsed;
+        json_value *parsed;
         struct twitter_xml_list *txl;
 
@@ -921 +1093 @@
                 goto end;
         twitter_xt_get_status_list(ic, parsed, txl);
-        xt_free_node(parsed);
+        json_value_free(parsed);
 
         td->home_timeline_obj = txl;
 
       end:
+        if (!g_slist_find(twitter_connections, ic))
+                return;
+
         td->flags |= TWITTER_GOT_TIMELINE;
 
@@ -938 +1113 @@
         struct im_connection *ic = req->data;
         struct twitter_data *td;
-        struct xt_node *parsed;
+        json_value *parsed;
         struct twitter_xml_list *txl;
 
@@ -954 +1129 @@
                 goto end;
         twitter_xt_get_status_list(ic, parsed, txl);
-        xt_free_node(parsed);
+        json_value_free(parsed);
 
         td->mentions_obj = txl;
 
       end:
+        if (!g_slist_find(twitter_connections, ic))
+                return;
+
         td->flags |= TWITTER_GOT_MENTIONS;
 
@@ -972 +1150 @@
         struct im_connection *ic = req->data;
         struct twitter_data *td;
-        struct xt_node *parsed, *node;
+        json_value *parsed, *id;
 
         // Check if the connection is still active.
@@ -984 +1162 @@
                 return;
         
-        if ((node = xt_find_node(parsed, "status")) &&
-            (node = xt_find_node(node->children, "id")) && node->text)
-                td->last_status_id = g_ascii_strtoull(node->text, NULL, 10);
+        if ((id = json_o_get(parsed, "id")) && id->type == json_integer) {
+                td->last_status_id = id->u.integer;
+        }
+        
+        json_value_free(parsed);
+        
+        if (req->flags & TWITTER_HTTP_USER_ACK)
+                twitter_log(ic, "Command processed successfully");
 }
 
@@ -1032 +1215 @@
         char *url;
         url = g_strdup_printf("%s%llu%s", TWITTER_STATUS_DESTROY_URL,
-                              (unsigned long long) id, ".xml");
-        twitter_http(ic, url, twitter_http_post, ic, 1, NULL, 0);
+                              (unsigned long long) id, ".json");
+        twitter_http_f(ic, url, twitter_http_post, ic, 1, NULL, 0,
+                       TWITTER_HTTP_USER_ACK);
         g_free(url);
 }
@@ -1041 +1225 @@
         char *url;
         url = g_strdup_printf("%s%llu%s", TWITTER_STATUS_RETWEET_URL,
-                              (unsigned long long) id, ".xml");
-        twitter_http(ic, url, twitter_http_post, ic, 1, NULL, 0);
+                              (unsigned long long) id, ".json");
+        twitter_http_f(ic, url, twitter_http_post, ic, 1, NULL, 0,
+                       TWITTER_HTTP_USER_ACK);
         g_free(url);
 }
@@ -1056 +1241 @@
         };
         args[1] = screen_name;
-        twitter_http(ic, TWITTER_REPORT_SPAM_URL, twitter_http_post,
-                     ic, 1, args, 2);
+        twitter_http_f(ic, TWITTER_REPORT_SPAM_URL, twitter_http_post,
+                       ic, 1, args, 2, TWITTER_HTTP_USER_ACK);
 }
 
@@ -1067 +1252 @@
         char *url;
         url = g_strdup_printf("%s%llu%s", TWITTER_FAVORITE_CREATE_URL,
-                              (unsigned long long) id, ".xml");
-        twitter_http(ic, url, twitter_http_post, ic, 1, NULL, 0);
+                              (unsigned long long) id, ".json");
+        twitter_http_f(ic, url, twitter_http_post, ic, 1, NULL, 0,
+                       TWITTER_HTTP_USER_ACK);
         g_free(url);
 }