一、目标：
- 实现传入参数
--set-cookies='[{"domain":"https://baidu.com","name":"AAAA","value":"111"},{"domain":"https://baidu.com","name":"BBB","value":"222"}]'，实现浏览器启动时，默认带上这2个cookie
阅读此篇博客前，请确保你已经可以完整的编译出自己的chromium了。
入门插眼：https://blog.csdn.net/w1101662433/article/details/137949705
官方编译文档：https://github.com/chromium/chromium/blob/main/docs/windows_build_instructions.md
二、为何要传参传入cookies
- 已知自动化工具selenium，puppeteer等都有启动时携带初始cookie功能，所以这部分用户可以忽略。
- 已知chromium的cookie存储位置是
user-data-dir/Default/Network/Cookies。这个文件没有后缀，但实际是个sqlite库文件，可以使用sqlite打开。 - 但是在源码里写sql还是有点麻烦，不如直接用调用源码中已有的函数，拿来调用即可。
三、修改chromium源码
- 打开
/content/browser/storage_partition_impl.cc
1.引用：
#include <iostream>
#include "base/json/json_reader.h"
#include "net/cookies/canonical_cookie.h"
2.找到：
network::mojom::CookieManager*
StoragePartitionImpl::GetCookieManagerForBrowserProcess() {DCHECK(initialized_);// Create the CookieManager as needed.if (!cookie_manager_for_browser_process_ ||!cookie_manager_for_browser_process_.is_connected()) {// Reset `cookie_manager_for_browser_process_` before binding it again.cookie_manager_for_browser_process_.reset();GetNetworkContext()->GetCookieManager(cookie_manager_for_browser_process_.BindNewPipeAndPassReceiver());}return cookie_manager_for_browser_process_.get();
}
3.替换为：
network::mojom::CookieManager*
StoragePartitionImpl::GetCookieManagerForBrowserProcess() {DCHECK(initialized_);// Create the CookieManager as needed.if (!cookie_manager_for_browser_process_ ||!cookie_manager_for_browser_process_.is_connected()) {// Reset `cookie_manager_for_browser_process_` before binding it again.cookie_manager_for_browser_process_.reset();GetNetworkContext()->GetCookieManager(cookie_manager_for_browser_process_.BindNewPipeAndPassReceiver());}// 开始追加 ===========================================// 传参：--set-cookies='[{"domain":"https://baidu.com","name":"AAAA","value":"111"},{"domain":"https://baidu.com","name":"BBB","value":"222"}]'base::CommandLine* base_command_line = base::CommandLine::ForCurrentProcess();std::string json_str = base_command_line->GetSwitchValueASCII("set-cookies"); auto parsed_json = base::JSONReader::Read(json_str);if (parsed_json && parsed_json->is_list()){for (const auto& item : parsed_json->GetList()) {if (!item.is_dict()) continue;network::mojom::CookieManager* cookie_manager = cookie_manager_for_browser_process_.get();const auto& dict = item.GetDict();const std::string* domain = dict.FindString("domain");const std::string* name = dict.FindString("name");const std::string* value = dict.FindString("value");//GURL url("https://baidu.com/");GURL url(*domain);std::string cookie_line = *name + "=" + *value + ";domain=" + url.host();std::cerr << "set-cookie: " << cookie_line << std::endl;//std::string cookie_line = std::string("BBBBB=222222222;domain=") + url.host();auto cookie = net::CanonicalCookie::Create(url, cookie_line, base::Time::Now(), absl::nullopt /* server_time */,std::nullopt, net::CookieSourceType::kOther,/*status=*/nullptr);cookie_manager->SetCanonicalCookie(*cookie, url, net::CookieOptions::MakeAllInclusive(),base::BindOnce([](net::CookieAccessResult result) {// 可在此添加日志或错误处理}));}}// 结束追加 ===========================================return cookie_manager_for_browser_process_.get();
}注意：此处为chromium137版本，其他版本略有不同，需要自行理解。
四、检测：
- cmd执行：
./chrome.exe https://www.baidu.com/ --user-data-dir=e:/1111/223111 --set-cookies='[{"domain":"https://baidu.com","name":"AAAA","value":"111"},{"domain":"https://baidu.com","name":"BBB","value":"222"}]'
可以看到，cookie写入成功了。
五、感想
- 最近工作比较忙，可以用来更新博客的时间越来越少了，大家就不要太关注了。哈哈，随缘。
