implement adding friends

libdc/include/dc/account.h

@@ -8,8 +8,19 @@
 struct dc_account_;
 typedef struct dc_account_ *dc_account_t;
 
+typedef enum {
+    FRIEND_STATE_NONE = 0,
+    /* accountt is a mutual friend
+     */
+    FRIEND_STATE_FRIEND = 1,
+    /* pending account, the other side hasn't accepted yet
+     */
+    FRIEND_STATE_PENDING = 4,
+} dc_account_friend_states;
+
 dc_account_t dc_account_new(void);
 dc_account_t dc_account_new2(char const *email, char const *pass);
+dc_account_t dc_account_from_fullid(char const *fullid);
 
 void dc_account_set_email(dc_account_t a, char const *email);
 char const *dc_account_email(dc_account_t a);
@@ -37,5 +48,7 @@ bool dc_account_has_token(dc_account_t a);
 void dc_account_set_friends(dc_account_t a, dc_account_t *ptr, size_t len);
 dc_account_t dc_account_nthfriend(dc_account_t a, size_t i);
 size_t dc_account_friends_size(dc_account_t a);
+int dc_account_friend_state(dc_account_t a);
+void dc_account_set_friend_state(dc_account_t a, int state);
 
 #endif

libdc/include/dc/api.h

@@ -65,4 +65,9 @@ bool dc_api_get_userguilds(dc_api_t api, dc_account_t login,
  */
 bool dc_api_get_friends(dc_api_t api, dc_account_t login);
 
+/**
+ * Add a given account as a friend to the friends list
+ */
+bool dc_api_add_friend(dc_api_t api, dc_account_t login, dc_account_t friend);
+
 #endif

libdc/src/account.c

@@ -34,6 +34,9 @@ struct dc_account_
     /* friends we have
      */
     GPtrArray *friends;
+    /* our own friend state
+     */
+    int friend_state;
 };
 
 static void dc_account_free(dc_account_t ptr)
@@ -81,6 +84,38 @@ dc_account_t dc_account_new2(char const *email, char const *pass)
     return ptr;
 }
 
+dc_account_t dc_account_from_fullid(char const *fullid)
+{
+    return_if_true(fullid == NULL, NULL);
+
+    char *name = strdup(fullid), *discriminator = NULL;
+    dc_account_t acc = NULL;
+
+    return_if_true(name == NULL, NULL);
+
+    discriminator = strchr(name, '#');
+    if (discriminator == NULL || *discriminator == '\0') {
+        free(name);
+        return NULL;
+    }
+
+    *discriminator = '\0';
+    ++discriminator;
+
+    acc = dc_account_new();
+    if (acc == NULL) {
+        free(name);
+        return NULL;
+    }
+
+    dc_account_set_username(acc, name);
+    dc_account_set_discriminator(acc, discriminator);
+
+    free(name);
+
+    return acc;
+}
+
 void dc_account_set_email(dc_account_t a, char const *email)
 {
     return_if_true(a == NULL,);
@@ -219,3 +254,15 @@ size_t dc_account_friends_size(dc_account_t a)
     return_if_true(a == NULL || a->friends == NULL, 0);
     return a->friends->len;
 }
+
+int dc_account_friend_state(dc_account_t a)
+{
+    return_if_true(a == NULL, 0);
+    return a->friend_state;
+}
+
+void dc_account_set_friend_state(dc_account_t a, int state)
+{
+    return_if_true(a == NULL,);
+    a->friend_state = state;
+}

libdc/src/api.c

@@ -349,6 +349,29 @@ error:
     return NULL;
 }
 
+static json_t *dc_api_user_to_json(dc_account_t a)
+{
+    json_t *j = NULL;
+
+    return_if_true(a == NULL, NULL);
+    return_if_true(dc_account_username(a) == NULL ||
+                   dc_account_discriminator(a) == NULL,
+                   NULL
+        );
+
+    j = json_object();
+    return_if_true(j == NULL, NULL);
+
+    json_object_set_new(j, "username",
+                        json_string(dc_account_username(a))
+        );
+    json_object_set_new(j, "discriminator",
+                        json_string(dc_account_discriminator(a))
+        );
+
+    return j;
+}
+
 bool dc_api_get_userinfo(dc_api_t api, dc_account_t login,
                          dc_account_t user)
 {
@@ -420,6 +443,15 @@ bool dc_api_get_friends(dc_api_t api, dc_account_t login)
         if (a == NULL) {
             continue;
         }
+
+        /* read the type also known as "typ"
+         */
+        val = json_object_get(c, "type");
+        if (val != NULL && json_is_integer(val)) {
+            int state = json_integer_value(val);
+            dc_account_set_friend_state(a, state);
+        }
+
         g_ptr_array_add(f, a);
     }
 
@@ -440,6 +472,36 @@ cleanup:
     return ret;
 }
 
+/**
+ * Add a given account as a friend to the friends list
+ */
+bool dc_api_add_friend(dc_api_t api, dc_account_t login, dc_account_t friend)
+{
+    char const *url = "users/@me/relationships";
+    json_t *reply = NULL, *post = NULL;
+    bool ret = false;
+
+    return_if_true(api == NULL, false);
+    return_if_true(login == NULL, false);
+
+    post = dc_api_user_to_json(friend);
+    return_if_true(post == NULL, false);
+
+    reply = dc_api_call_sync(api, "POST", dc_account_token(login), url, post);
+    /* apparently if no data comes back, then the whole thing was a success
+     */
+    goto_if_true(reply != NULL, cleanup);
+
+    ret = true;
+
+cleanup:
+
+    json_decref(post);
+    json_decref(reply);
+
+    return ret;
+}
+
 bool dc_api_get_userguilds(dc_api_t api, dc_account_t login, GPtrArray **out)
 {
     char const *url = "users/@me/guilds";

ncdc/src/cmds.c

@@ -1,9 +1,10 @@
 #include <ncdc/cmds.h>
 
 ncdc_commands_t cmds[] = {
-    { L"friends", ncdc_cmd_friends },
-    { L"login", ncdc_cmd_login },
-    { L"quit", ncdc_cmd_quit },
+    { L"/friend",  ncdc_cmd_friends },
+    { L"/friends", ncdc_cmd_friends },
+    { L"/login",   ncdc_cmd_login },
+    { L"/quit",    ncdc_cmd_quit },
     { NULL, NULL }
 };
 
@@ -36,7 +37,6 @@ static void *async_dispatcher(void *arg)
                 /* end of working orders
                  */
                 pthread_mutex_unlock(&mtx);
-                printf("got exit\n");
                 return NULL;
             } else {
                 /* call the handler
@@ -92,15 +92,17 @@ bool ncdc_dispatch_deinit(void)
 bool ncdc_dispatch(ncdc_mainwindow_t n, wchar_t const *s)
 {
     wchar_t **tokens = NULL;
-    size_t i = 0;
+    size_t i = 0, tokenlen = 0;
     ncdc_commands_t *it = NULL;
     queue_item *item = NULL;
 
     tokens = w_tokenise(s);
     return_if_true(tokens == NULL, false);
 
+    tokenlen = wcslen(tokens[0]);
+
     for (i = 0; cmds[i].name != NULL; i++) {
-        if (wcscmp(cmds[i].name, tokens[0]) == 0) {
+        if (wcsncmp(cmds[i].name, tokens[0], tokenlen) == 0) {
             it = cmds+i;
             break;
         }

ncdc/src/friends.c

@@ -6,6 +6,7 @@ ncdc_cmd_friends_list(ncdc_mainwindow_t n, size_t ac, wchar_t **av)
 {
     bool ret = false;
     size_t i = 0;
+    wchar_t c = ' ';
 
     ret = dc_api_get_friends(api, current_account);
     if (!ret) {
@@ -16,27 +17,67 @@ ncdc_cmd_friends_list(ncdc_mainwindow_t n, size_t ac, wchar_t **av)
     LOG(n, L"/FRIENDS list");
     for (i = 0; i < dc_account_friends_size(current_account); i++) {
         dc_account_t acc = dc_account_nthfriend(current_account, i);
-        LOG(n, L"  %s", dc_account_full_username(acc));
+        switch (dc_account_friend_state(acc)) {
+        case FRIEND_STATE_PENDING: c = 'P'; break;
+        default: c = ' '; break;
+        }
+        LOG(n, L"%lc %s", c, dc_account_full_username(acc));
     }
     LOG(n, L"End of /FRIENDS list");
 
     return true;
 }
 
-bool ncdc_cmd_friends(ncdc_mainwindow_t n, size_t ac, wchar_t **av)
+static bool
+ncdc_cmd_friends_add(ncdc_mainwindow_t n, size_t ac, wchar_t **av)
 {
-    wchar_t *subcmd = NULL;
+    char *name = NULL;
+    dc_account_t friend = NULL;
+    bool ret = false;
 
     if (ac <= 1) {
         return false;
     }
 
+    name = w_convert(av[1]);
+    return_if_true(name == NULL, false);
+
+    friend = dc_account_from_fullid(name);
+    if (friend == NULL) {
+        LOG(n, L"friends: add: invalid username given, use the full ID");
+        goto cleanup;
+    }
+
+    if (!dc_api_add_friend(api, current_account, friend)) {
+        LOG(n, L"friends: add: failed to add friend, Vulkan would be sad");
+        goto cleanup;
+    }
+
+    LOG(n, L"friends: add: request for friendship sent");
+    ret = true;
+
+cleanup:
+
+    dc_unref(friend);
+    free(name);
+
+    return ret;
+}
+
+bool ncdc_cmd_friends(ncdc_mainwindow_t n, size_t ac, wchar_t **av)
+{
+    wchar_t *subcmd = NULL;
+
     if (current_account == NULL ||
         !dc_account_has_token(current_account)) {
         LOG(n, L"friends: not logged in");
         return false;
     }
 
+    if (ac <= 1) {
+        return ncdc_cmd_friends_list(n, ac, av);
+    }
+
     subcmd = av[1];
 
     --ac;
@@ -44,6 +85,8 @@ bool ncdc_cmd_friends(ncdc_mainwindow_t n, size_t ac, wchar_t **av)
 
     if (wcscmp(subcmd, L"list") == 0) {
         return ncdc_cmd_friends_list(n, ac, av);
+    } else if (wcscmp(subcmd, L"add") == 0) {
+        return ncdc_cmd_friends_add(n, ac, av);
     } else {
         return false;
     }

ncdc/src/mainwindow.c

@@ -99,12 +99,12 @@ ncdc_mainwindow_callback(ncdc_input_t i, wchar_t const *s,
 {
     ncdc_mainwindow_t mainwin = (ncdc_mainwindow_t)arg;
 
-    if (s[0] == '/') {
+    if (s != NULL && s[0] == '/') {
         if (s[1] == '\0') {
             return false;
         }
 
-        return ncdc_dispatch(mainwin, s+1);
+        return ncdc_dispatch(mainwin, s);
     }
 
     return false;

ncdc/src/util.c

@@ -33,11 +33,11 @@ int aswprintf(wchar_t **buffer, wchar_t const *fmt, ...)
     return sz;
 }
 
-wchar_t* wcsndup(const wchar_t* string, size_t maxlen)
+wchar_t* wcsndup(wchar_t const* string, size_t maxlen)
 {
-    size_t n = wcsnlen(string, maxlen) + 1;
-    wchar_t* r = calloc(n, sizeof(wchar_t));
-    return r == NULL ? NULL : wmemcpy(r, string, n);
+    wchar_t* r = calloc(maxlen+1, sizeof(wchar_t));
+    return_if_true(r == NULL, NULL);
+    return wmemcpy(r, string, maxlen);
 }
 
 size_t w_strlenv(wchar_t **s)
@@ -61,28 +61,56 @@ void w_strfreev(wchar_t **s)
     free(s);
 }
 
-wchar_t **w_tokenise(wchar_t const *w)
+wchar_t **w_tokenise(wchar_t const *str)
 {
+    wchar_t const *p = NULL, *start_of_word = NULL;
+    wint_t c;
     GPtrArray *array = g_ptr_array_new();
-    wchar_t const *item = w;
-    wchar_t *dup = NULL;
-    size_t len = 0, origlen = 0;
+    enum states { DULL, IN_WORD, IN_STRING } state = DULL;
 
-    while ((dup = w_next_tok(item)) != NULL) {
-        len = origlen = wcslen(dup);
+    for (p = str; *p != '\0'; p++) {
+        c = (wint_t) *p;
+        switch (state) {
+        case DULL:
+        {
+            if (iswspace(c)) {
+                continue;
+            }
+            if (c == '"') {
+                state = IN_STRING;
+                start_of_word = p + 1;
+                continue;
+            }
+            state = IN_WORD;
+            start_of_word = p;
+        } continue;
 
-        if (*dup == '"') {
-            memmove(dup, dup+1, sizeof(wchar_t)*(len-1));
-            --len;
+        case IN_STRING:
+        {
+            if (c == '"') {
+                size_t len = (p - 2 - start_of_word);
+                wchar_t *s = wcsndup(start_of_word, len);
+                g_ptr_array_add(array, s);
+                state = DULL;
+            }
+        } continue;
+
+        case IN_WORD:
+        {
+            if (iswspace(c)) {
+                size_t len = (p - start_of_word);
+                wchar_t *s = wcsndup(start_of_word, len);
+                g_ptr_array_add(array, s);
+                state = DULL;
+            }
+        } continue;
+        }
     }
 
-        if (len > 0 && dup[len-1] == '"') {
-            dup[len-1] = '\0';
-            --len;
-        }
-
-        g_ptr_array_add(array, dup);
-        item += origlen;
+    if (state != DULL) {
+        size_t len = (p - start_of_word);
+        wchar_t *s = wcsndup(start_of_word, len);
+        g_ptr_array_add(array, s);
     }
 
     g_ptr_array_add(array, NULL);
@@ -103,40 +131,3 @@ char *w_convert(wchar_t const *w)
     wcstombs(ptr, w, sz);
     return ptr;
 }
-
-wchar_t *w_next_tok(wchar_t const *w)
-{
-    bool quotes = false;
-    wchar_t const *start = NULL;
-
-    /* skip first white spaces if there are any
-     */
-    for (; *w != '\0' && iswspace(*w); w++)
-        ;
-
-    if (*w == '\0') {
-        return NULL;
-    }
-
-    start = w;
-    quotes = (*w == '"');
-
-    do {
-        if (iswspace(*w) && !quotes) {
-            --w;
-            break;
-        }
-
-        if (*w == '"' && *(w-1) != '\\' && quotes) {
-            break;
-        }
-
-        if (*w == '\0') {
-            break;
-        }
-
-        ++w;
-    } while (1);
-
-    return wcsndup(start, (w - start));
-}