2023-04-08 07:09:05 +03:00
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/* snac - A simple, minimalistic ActivityPub instance */
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/* copyright (c) 2022 - 2023 grunfink / MIT license */
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#include "xs.h"
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#include "xs_encdec.h"
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#include "xs_json.h"
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2023-04-08 11:29:33 +03:00
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#include "xs_io.h"
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2023-04-08 07:09:05 +03:00
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#include "xs_time.h"
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#include "snac.h"
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2023-04-08 10:09:43 +03:00
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static xs_str *random_str(void)
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/* just what is says in the tin */
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{
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unsigned int data[4] = {0};
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FILE *f;
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if ((f = fopen("/dev/random", "r")) != NULL) {
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fread(data, sizeof(data), 1, f);
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fclose(f);
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}
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else {
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data[0] = random() % 0xffffffff;
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data[1] = random() % 0xffffffff;
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data[2] = random() % 0xffffffff;
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data[3] = random() % 0xffffffff;
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}
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return xs_hex_enc((char *)data, sizeof(data));
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}
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2023-04-08 11:29:33 +03:00
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int app_add(const char *id, const xs_dict *app)
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/* stores an app */
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{
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int status = 201;
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xs *fn = xs_fmt("%s/app/", srv_basedir);
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FILE *f;
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mkdirx(fn);
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fn = xs_str_cat(fn, id);
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fn = xs_str_cat(fn, ".json");
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if ((f = fopen(fn, "w")) != NULL) {
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xs *j = xs_json_dumps_pp(app, 4);
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fwrite(j, strlen(j), 1, f);
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fclose(f);
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}
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else
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status = 500;
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return status;
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}
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xs_dict *app_get(const char *id)
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/* gets an app */
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{
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xs *fn = xs_fmt("%s/app/%s.json", srv_basedir, id);
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xs_dict *app = NULL;
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FILE *f;
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if ((f = fopen(fn, "r")) != NULL) {
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xs *j = xs_readall(f);
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fclose(f);
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app = xs_json_loads(j);
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}
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return app;
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}
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2023-04-08 10:27:22 +03:00
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const char *login_page = ""
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"<!DOCTYPE html>\n"
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"<body><h1>%s identify</h1>\n"
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"<form method=\"post\" action=\"https:/" "/%s/oauth/x-snac-login\">\n"
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"<p>Login: <input type=\"text\" name=\"login\"></p>\n"
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"<p>Password: <input type=\"password\" name=\"passwd\"></p>\n"
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"<input type=\"hidden\" name=\"redir\" value=\"%s\">\n"
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2023-04-08 11:29:33 +03:00
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"<input type=\"hidden\" name=\"cid\" value=\"%s\">\n"
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"</form><p>%s</p></body>\n"
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"";
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int oauth_get_handler(const xs_dict *req, const char *q_path,
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char **body, int *b_size, char **ctype)
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{
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if (!xs_startswith(q_path, "/oauth/"))
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return 0;
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2023-04-08 10:09:43 +03:00
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{
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xs *j = xs_json_dumps_pp(req, 4);
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printf("oauth:\n%s\n", j);
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}
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2023-04-08 08:04:40 +03:00
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int status = 404;
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xs_dict *msg = xs_dict_get(req, "q_vars");
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xs *cmd = xs_replace(q_path, "/oauth", "");
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if (strcmp(cmd, "/authorize") == 0) {
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const char *cid = xs_dict_get(msg, "client_id");
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const char *ruri = xs_dict_get(msg, "redirect_uri");
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const char *rtype = xs_dict_get(msg, "response_type");
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2023-04-08 11:29:33 +03:00
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status = 400;
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if (cid && ruri && rtype && strcmp(rtype, "code") == 0) {
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xs *app = app_get(cid);
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2023-04-08 11:29:33 +03:00
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if (app != NULL) {
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const char *host = xs_dict_get(srv_config, "host");
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*body = xs_fmt(login_page, host, host, ruri, cid, USER_AGENT);
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*ctype = "text/html";
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status = 200;
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}
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2023-04-08 08:04:40 +03:00
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}
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}
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2023-04-08 10:09:43 +03:00
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return status;
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}
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int oauth_post_handler(const xs_dict *req, const char *q_path,
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const char *payload, int p_size,
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char **body, int *b_size, char **ctype)
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{
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if (!xs_startswith(q_path, "/oauth/"))
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return 0;
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int status = 404;
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xs_dict *msg = xs_dict_get(req, "p_vars");
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xs *cmd = xs_replace(q_path, "/oauth", "");
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printf("oauth: %s\n", q_path);
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2023-04-08 08:04:40 +03:00
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if (strcmp(cmd, "/token") == 0) {
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const char *gtype = xs_dict_get(msg, "grant_type");
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const char *code = xs_dict_get(msg, "code");
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const char *cid = xs_dict_get(msg, "client_id");
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const char *csec = xs_dict_get(msg, "client_secret");
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const char *ruri = xs_dict_get(msg, "redirect_uri");
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const char *scope = xs_dict_get(msg, "scope");
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if (gtype && code && cid && csec && ruri) {
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2023-04-08 10:09:43 +03:00
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xs *rsp = xs_dict_new();
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xs *cat = xs_number_new(time(NULL));
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xs *token = random_str();
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2023-04-08 10:09:43 +03:00
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rsp = xs_dict_append(rsp, "access_token", token);
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rsp = xs_dict_append(rsp, "token_type", "Bearer");
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rsp = xs_dict_append(rsp, "scope", scope);
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rsp = xs_dict_append(rsp, "created_at", cat);
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*body = xs_json_dumps_pp(rsp, 4);
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*ctype = "application/json";
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status = 200;
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}
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else
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status = 400;
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}
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else
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if (strcmp(cmd, "/revoke") == 0) {
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2023-04-08 10:09:43 +03:00
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const char *cid = xs_dict_get(msg, "client_id");
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const char *csec = xs_dict_get(msg, "client_secret");
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const char *token = xs_dict_get(msg, "token");
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if (cid && csec && token) {
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*body = xs_str_new("{}");
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*ctype = "application/json";
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status = 200;
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}
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else
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status = 400;
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2023-04-08 08:04:40 +03:00
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}
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return status;
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}
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2023-04-08 07:09:05 +03:00
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2023-04-08 10:09:43 +03:00
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int mastoapi_post_handler(const xs_dict *req, const char *q_path,
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const char *payload, int p_size,
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char **body, int *b_size, char **ctype)
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{
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if (!xs_startswith(q_path, "/api/v1/"))
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return 0;
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2023-04-08 08:04:40 +03:00
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int status = 404;
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xs *msg = NULL;
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char *i_ctype = xs_dict_get(req, "content-type");
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if (xs_startswith(i_ctype, "application/json"))
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msg = xs_json_loads(payload);
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else
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msg = xs_dup(xs_dict_get(req, "p_vars"));
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if (msg == NULL)
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return 400;
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{
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xs *j = xs_json_dumps_pp(req, 4);
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printf("%s\n", j);
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}
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{
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xs *j = xs_json_dumps_pp(msg, 4);
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printf("%s\n", j);
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}
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xs *cmd = xs_replace(q_path, "/api/v1", "");
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if (strcmp(cmd, "/apps") == 0) {
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const char *name = xs_dict_get(msg, "client_name");
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const char *ruri = xs_dict_get(msg, "redirect_uris");
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if (name && ruri) {
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xs *app = xs_dict_new();
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xs *id = xs_replace_i(tid(0), ".", "");
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xs *cid = random_str();
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xs *csec = random_str();
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xs *vkey = random_str();
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app = xs_dict_append(app, "name", name);
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app = xs_dict_append(app, "redirect_uri", ruri);
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app = xs_dict_append(app, "client_id", cid);
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app = xs_dict_append(app, "client_secret", csec);
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app = xs_dict_append(app, "vapid_key", vkey);
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app = xs_dict_append(app, "id", id);
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2023-04-08 08:04:40 +03:00
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*body = xs_json_dumps_pp(app, 4);
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*ctype = "application/json";
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status = 200;
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2023-04-08 11:29:33 +03:00
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app = xs_dict_append(app, "code", "");
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app_add(cid, app);
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2023-04-08 08:04:40 +03:00
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}
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}
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2023-04-08 07:09:05 +03:00
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return status;
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}
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