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-rw-r--r--content/content.js89
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+/**
+ * This file is part of Haketilo.
+ *
+ * Function: Content scripts - main script.
+ *
+ * Copyright (C) 2022 Wojtek Kosior
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * As additional permission under GNU GPL version 3 section 7, you
+ * may distribute forms of that code without the copy of the GNU
+ * GPL normally required by section 4, provided you include this
+ * license notice and, in case of non-source distribution, a URL
+ * through which recipients can access the Corresponding Source.
+ * If you modify file(s) with this exception, you may extend this
+ * exception to your version of the file(s), but you are not
+ * obligated to do so. If you do not wish to do so, delete this
+ * exception statement from your version.
+ *
+ * As a special exception to the GPL, any HTML file which merely
+ * makes function calls to this code, and for that purpose
+ * includes it by reference shall be deemed a separate work for
+ * copyright law purposes. If you modify this code, you may extend
+ * this exception to your version of the code, but you are not
+ * obligated to do so. If you do not wish to do so, delete this
+ * exception statement from your version.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <https://www.gnu.org/licenses/>.
+ *
+ * I, Wojtek Kosior, thereby promise not to sue for violation of this file's
+ * license. Although I request that you do not make use of this code in a
+ * proprietary program, I am not going to enforce this in court.
+ */
+
+#IMPORT content/repo_query_cacher.js
+
+#FROM common/browser.js IMPORT browser
+#FROM common/misc.js IMPORT is_privileged_url
+#FROM common/policy.js IMPORT decide_policy
+#FROM content/policy_enforcing.js IMPORT enforce_blocking
+
+let already_run = false, page_info;
+
+function on_page_info_request([type], sender, respond_cb) {
+ if (type !== "page_info")
+ return;
+
+ respond_cb(page_info);
+}
+
+globalThis.haketilo_content_script_main = function() {
+ if (already_run)
+ return;
+
+ already_run = true;
+
+ if (is_privileged_url(document.URL))
+ return;
+
+ browser.runtime.onMessage.addListener(on_page_info_request);
+ repo_query_cacher.start();
+
+ const policy = decide_policy(globalThis.haketilo_pattern_tree,
+ document.URL,
+ globalThis.haketilo_defualt_allow,
+ globalThis.haketilo_secret);
+ page_info = Object.assign({url: document.URL}, policy);
+ ["csp", "nonce"].forEach(prop => delete page_info[prop]);
+
+ enforce_blocking(policy);
+}
+
+function main() {
+ if (globalThis.haketilo_pattern_tree !== undefined)
+ globalThis.haketilo_content_script_main();
+}
+
+#IF !UNIT_TEST
+main();
+#ENDIF