diff --git a/background.js b/background.js
index 5f5f4398553fe34f4e55377dbc73f0ad75fa0603..8c34be0476d919cdf613cd45ad0d116aedb28b12 100644
--- a/background.js
+++ b/background.js
@@ -97,6 +97,60 @@ function storeInBrowserStorage(item, callback_function) {
chrome.storage.local.set(item, callback_function);
}
+/*
+ * This function set a key-value pair in HTTP header "Cookie",
+ * and returns the value of HTTP header after modification.
+ * If key already exists, it modify the value.
+ * If key doesn't exist, it add the key-value pair.
+ * If value is undefined, it delete the key-value pair from cookies.
+ *
+ * Assuming that, the same key SHOULD NOT appear twice in cookies.
+ * Also assuming that, all cookies doesn't contains semicolon.
+ * (99.9% websites are following these rules)
+ *
+ * Example:
+ * cookie_keyvalues_set("msg=good; user=recolic; password=test", "user", "p")
+ * => "msg=good; user=p; password=test"
+ * cookie_keyvalues_set("msg=good; user=recolic; password=test", "time", "night")
+ * => "msg=good; user=recolic; password=test;time=night"
+ *
+ * Recolic K <root@recolic.net>
+ */
+function cookie_keyvalues_set(original_cookies, key, value) {
+ let new_element = key + "=" + value; // not used if value is undefined.
+ let cookies_ar = original_cookies.split(";").filter(e => e.trim().length > 0);
+ let selected_cookie_index = cookies_ar.findIndex(kv => kv.trim().startsWith(key+"="));
+ if (selected_cookie_index == -1)
+ cookies_ar.push(new_element);
+ else {
+ if (value === undefined)
+ cookies_ar.splice(selected_cookie_index, 1);
+ else
+ cookies_ar.splice(selected_cookie_index, 1, new_element);
+ }
+ return cookies_ar.join(";");
+}
+/*
+ * This function modify the HTTP response header "Set-Cookie",
+ * and replace the value of its cookie, to some new_value.
+ * If key doesn't match original_set_cookie_header_content, new key is used in result.
+ *
+ * Example:
+ * set_cookie_modify_cookie_value("token=123; path=/; expires=Sat, 30 Oct 2021 17:57:32 GMT; secure; HttpOnly", "token", "bar")
+ * => "token=bar; path=/; expires=Sat, 30 Oct 2021 17:57:32 GMT; secure; HttpOnly"
+ * set_cookie_modify_cookie_value(" user=recolic", "user", "hacker")
+ * => "user=hacker"
+ * set_cookie_modify_cookie_value("user=recolic; path=/; HttpOnly", "token", "bar")
+ * => "token=bar; path=/; HttpOnly"
+ *
+ * Recolic K <root@recolic.net>
+ */
+function set_cookie_modify_cookie_value(original_set_cookie_header_content, key, new_value) {
+ let trimmed = original_set_cookie_header_content.trimStart();
+ let original_attributes = trimmed.indexOf(";") === -1 ? "" : trimmed.substring(trimmed.indexOf(";"))
+ return key + "=" + new_value + original_attributes;
+}
+
/*
* Standard function to log messages
@@ -142,6 +196,29 @@ function rewriteRequestHeader(e) {
" for url " + e.url);
}
}
+ else if (to_modify.action === "cookie_add_or_modify") {
+ let header_cookie = e.requestHeaders.find(header => header.name.toLowerCase() === "cookie");
+ let new_cookie = cookie_keyvalues_set(header_cookie === undefined ? "" : header_cookie.value, to_modify.header_name, to_modify.header_value);
+ if (header_cookie === undefined) {
+ e.requestHeaders.push({"name": "Cookie", "value": new_cookie});
+ if (config.debug_mode) log("cookie_add_or_modify.req new_header : name=Cookie,value=" + new_cookie + " for url " + e.url);
+ }
+ else {
+ header_cookie.value = new_cookie;
+ if (config.debug_mode) log("cookie_add_or_modify.req modify_header : name=Cookie,value=" + new_cookie + " for url " + e.url);
+ }
+ }
+ else if (to_modify.action === "cookie_delete") {
+ let header_cookie = e.requestHeaders.find(header => header.name.toLowerCase() === "cookie");
+ let new_cookie = cookie_keyvalues_set(header_cookie === undefined ? "" : header_cookie.value, to_modify.header_name, undefined);
+ if (header_cookie === undefined) {
+ if (config.debug_mode) log("cookie_delete.req: no cookie header found. doing nothing for url " + e.url);
+ }
+ else {
+ header_cookie.value = new_cookie;
+ if (config.debug_mode) log("cookie_delete.req modify_header : name=Cookie,value=" + new_cookie + " for url " + e.url);
+ }
+ }
}
}
if (config.debug_mode) log("End modify request headers for url " + e.url);
@@ -183,6 +260,35 @@ function rewriteResponseHeader(e) {
+ " for url " + e.url);
}
}
+ else if (to_modify.action === "cookie_add_or_modify") {
+ let header_cookie = e.responseHeaders.find(header =>
+ header.name.toLowerCase() === "set-cookie" &&
+ header.value.toLowerCase().trim().startsWith(to_modify.header_name.toLowerCase()+"=")
+ );
+ let new_header_value = set_cookie_modify_cookie_value(header_cookie === undefined ? "" : header_cookie.value, to_modify.header_name, to_modify.header_value);
+ if (header_cookie === undefined) {
+ log("SimpleModifyHeaders.Warning: you're using cookie_add_or_modify in Response. While adding new cookie in response, this plugin only generates `Set-Cookie: cookie-name=cookie-value `, without ANY additional attributes. Add a `Set-Cookie` header if you need them. ");
+ e.responseHeaders.push({"name": "Set-Cookie", "value": new_header_value});
+ if (config.debug_mode) log("cookie_add_or_modify.resp new_header : name=Cookie,value=" + new_header_value + " for url " + e.url);
+ }
+ else {
+ header_cookie.value = new_header_value;
+ if (config.debug_mode) log("cookie_add_or_modify.resp modify_header : name=Cookie,value=" + new_header_value + " for url " + e.url);
+ }
+ }
+ else if (to_modify.action === "cookie_delete") {
+ let index = e.responseHeaders.findIndex(header =>
+ header.name.toLowerCase() === "set-cookie" &&
+ header.value.toLowerCase().trim().startsWith(to_modify.header_name.toLowerCase()+"=")
+ );
+ if (index === -1) {
+ if (config.debug_mode) log("cookie_delete.resp: no matching set-cookie header. doing nothing for url " + e.url);
+ }
+ else {
+ e.responseHeaders.splice(index, 1);
+ if (config.debug_mode) log("cookie_delete.resp delete_header : name=" + to_modify.header_name + " for url " + e.url);
+ }
+ }
}
}
if (config.debug_mode) log("End modify response headers for url " + e.url);
diff --git a/popup/config.js b/popup/config.js
index 51a64a099cba64a1dc986e27498012b8c9564ec9..f76fd223a3adb962a776d31f0f3cf10682b59227 100644
--- a/popup/config.js
+++ b/popup/config.js
@@ -118,6 +118,8 @@ function appendLine(url_contains,action,header_name,header_value,comment,apply_o
<option value="add">Add</option>
<option value="modify">Modify</option>
<option value="delete">Delete</option>
+ <option value="cookie_add_or_modify">Cookie Add/Modify</option>
+ <option value="cookie_delete">Cookie Delete</option>
</select>
</td>
<td>