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pagesift_engine/engine/
mod.rs

1//! 抓取引擎:把网络层、礼貌策略、正文提取、PDF 和浏览器渲染串成一次完整的抓取。
2//!
3//! 流程:robots 模式 → HTTP 抓取(策略层负责冷却、robots、限速)→ 按内容类型分流(PDF / HTML)
4//! → `engine: auto` 时正文太少就升级到浏览器渲染 → 组装成 Firecrawl 格式的文档。
5
6use std::collections::BTreeMap;
7use std::sync::Arc;
8use std::time::{Duration, Instant};
9
10use pagesift_api::types::{Document, Metadata, PagesiftMeta, ScrapeOptions};
11use pagesift_api::{ApiError, BoxFuture, Engine, ErrorCode};
12use pagesift_cdp::{
13    AllowListGuard, BlockResources, BrowserPool, NetworkAllowList, PoolConfig, PrivateNetworkGuard,
14    RenderOptions, RenderedPage, RequestGuard, SubRequest, Verdict,
15};
16use pagesift_net::{FetchRequest, Fetcher, FetcherConfig, Url};
17use pagesift_policy::{Policy, PolicyConfig, RequestKind, RobotsMode};
18use tokio::sync::OnceCell;
19
20tokio::task_local! {
21    static ITNA_NETWORK_BUDGET: Arc<pagesift_itna::NetworkBudget>;
22    static ITNA_COOKIE_SESSION: Option<Arc<pagesift_net::CookieSession>>;
23    static ITNA_EXPECTED_DIRECT: Option<bool>;
24    static ITNA_DEFAULT_PROXY: Option<String>;
25}
26
27pub mod agent;
28mod autoschema;
29mod cache;
30mod cpu;
31mod csv_text;
32mod egress_route;
33mod extract;
34mod feed;
35mod fetch;
36mod frames;
37mod hooked;
38mod http_extract;
39mod image_file;
40mod images;
41mod interact;
42mod office;
43mod output;
44mod parse;
45mod pdf;
46pub mod planner;
47mod render;
48mod render_stats;
49mod scraper;
50mod speculate;
51pub use autoschema::ActionSecret;
52pub use hooked::ScraperBuilder;
53pub use interact::InteractLimits;
54mod similar;
55mod structured;
56use cpu::{CONTENT_WORKSPACE, cpu_task};
57pub use cpu::{set_cpu_capacity, set_cpu_groups};
58use extract::*;
59use frames::*;
60use http_extract::*;
61use office::*;
62pub use office::{office_markdown, office_markdown_from};
63pub use output::*;
64use render::*;
65
66/// F-1.9:HTTP 抓到的正文少于这么多(加权)字符时,`engine: auto` 升级到浏览器渲染。
67/// 中日韩文字一个字按 [`CJK_WEIGHT`] 个字符算(信息量和几个拉丁字母相当),见 [`text_weight`]。
68pub const AUTO_RENDER_MIN_CHARS: usize = 1200;
69/// 已经认出是一篇文章(有发布时间或 `og:type=article`)时,正文到这么多加权字符就不再渲染:
70/// 短新闻 HTTP 已经拿全了。AiSeek 的生产数据里,63% 的渲染拿到的文字和 HTTP 一样多,
71/// 多半就是这类短文章。
72pub const AUTO_RENDER_ARTICLE_MIN_CHARS: usize = 300;
73pub const CJK_WEIGHT: usize = 3;
74
75/// 正文的加权长度:空白不算,中日韩文字按 [`CJK_WEIGHT`] 算。
76pub fn text_weight(s: &str) -> usize {
77    s.chars()
78        .filter(|c| !c.is_whitespace())
79        .map(|c| if is_cjk(c) { CJK_WEIGHT } else { 1 })
80        .sum()
81}
82
83fn is_cjk(c: char) -> bool {
84    matches!(c as u32,
85        0x3040..=0x30FF   // 平假名、片假名
86        | 0x3400..=0x4DBF // CJK 扩展 A
87        | 0x4E00..=0x9FFF // CJK 统一汉字
88        | 0xAC00..=0xD7AF // 谚文音节
89        | 0xF900..=0xFAFF // CJK 兼容汉字
90        | 0x20000..=0x2FA1F)
91}
92
93/// `engine: auto` 时 HTTP 的结果是否还要用浏览器渲染。
94pub fn needs_render(doc: &pagesift_content::Document) -> bool {
95    let w = text_weight(&doc.markdown);
96    if w >= AUTO_RENDER_MIN_CHARS {
97        return false;
98    }
99    let m = &doc.metadata;
100    let article = m.published_time.is_some()
101        || m.extra
102            .iter()
103            .any(|(k, v)| k == "og:type" && v.eq_ignore_ascii_case("article"));
104    !(article && w >= AUTO_RENDER_ARTICLE_MIN_CHARS)
105}
106/// 浏览器渲染出的正文少于这么多字符时,换下一个内核再试(Lightpanda 的脚本支持不全,
107/// 单页应用可能渲染不出内容)。最后一个内核的结果照常返回。
108pub const RENDER_FALLBACK_MIN_CHARS: usize = 200;
109
110/// 内核链里一个内核的启动检查结果([`Scraper::probe_engines`])。
111#[derive(Debug, Clone)]
112pub struct EngineProbe {
113    pub engine: &'static str,
114    /// 可执行文件路径或远程地址。
115    pub location: String,
116    pub result: Result<(), String>,
117}
118
119#[derive(Clone, Default)]
120pub struct ScraperConfig {
121    pub fetcher: FetcherConfig,
122    pub policy: PolicyConfig,
123    /// Explicitly enable bounded access-barrier recovery.
124    pub itna: bool,
125    pub browser: PoolConfig,
126    /// 抓取结果缓存(`maxAge`、`minAge`、`storeInCache`);不设时不缓存。
127    pub store: Option<pagesift_store::Store>,
128    /// `summary`、`json` 格式和 `/v2/extract` 用的 OpenAI 兼容服务。
129    pub llm: Option<pagesift_llm::LlmConfig>,
130    /// `/v2/search` 用的搜索后端。
131    pub search: Option<Arc<dyn pagesift_search::SearchBackend>>,
132    /// 命名出口(名字,代理地址):请求的 `egress` 选其中一个,其余抓取设置和默认出口相同;
133    /// 两个及以上时,不指定 `egress` 的请求由出口池选。
134    pub egress: Vec<(String, String)>,
135    /// 命名出口的类别(没列出的是 `direct`)。代理地址为空的 `direct` 出口与默认出口相同。
136    pub egress_classes: std::collections::HashMap<String, pagesift_policy::EgressClass>,
137    /// 审计日志:每次抓取一行元数据,可疑结果留 HTML 快照(见 [`crate::audit`])。
138    pub audit: Option<Arc<crate::audit::Audit>>,
139    /// 扩展点(`pagesift_hooks`):代码注册的钩子和 `[[rules]]` 编译出的规则。空时不经过任何钩子。
140    pub hooks: pagesift_hooks::Hooks,
141    /// `[secrets]`:act 动作里 `{{secret:NAME}}` 在本地替换成的值(不经过模型)。
142    pub secrets: std::collections::BTreeMap<String, ActionSecret>,
143    /// 扫描页 OCR(`[ocr] enabled`);不设时扫描页只有说明,并报 `scanned_pages_without_ocr`。
144    pub ocr: Option<Arc<dyn pagesift_pdf::PageOcr>>,
145    /// `/interact` 保留会话的时长上限(默认 Firecrawl 文档的值)。
146    pub interact: InteractLimits,
147}
148
149/// 创建 [`Scraper`] 失败:网络层或 LLM 客户端的配置不对。
150#[derive(Debug)]
151pub enum ScraperError {
152    Fetcher(pagesift_net::Error),
153    Llm(pagesift_llm::LlmError),
154}
155
156impl std::fmt::Display for ScraperError {
157    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
158        match self {
159            Self::Fetcher(e) => write!(f, "fetcher configuration: {e}"),
160            Self::Llm(e) => write!(f, "LLM configuration: {e}"),
161        }
162    }
163}
164
165impl std::error::Error for ScraperError {
166    fn source(&self) -> Option<&(dyn std::error::Error + 'static)> {
167        match self {
168            Self::Fetcher(e) => Some(e),
169            Self::Llm(e) => Some(e),
170        }
171    }
172}
173
174pub struct Scraper {
175    policy: Arc<Policy>,
176    itna: bool,
177    /// Reusable identities, scoped by owner, origin, egress and fingerprint.
178    /// A session is never shared between different owners.
179    identities: pagesift_policy::identity_pool::IdentityPool,
180    store: Option<pagesift_store::Store>,
181    llm: Option<pagesift_llm::ChatClient>,
182    search: Option<Arc<dyn pagesift_search::SearchBackend>>,
183    ocr: Option<Arc<dyn pagesift_pdf::PageOcr>>,
184    /// 网络层放开了内网(`allowPrivateNetwork`)时,浏览器的子请求也一样放开。
185    browser_private_network: bool,
186    /// 浏览器子请求的细粒度内网放行名单(allow_hosts / allow_ips / allow_cidrs)。
187    browser_allow: NetworkAllowList,
188    /// 按优先级排列的内核(见 [`pagesift_cdp::engine_chain`])。每个池第一次需要时才创建;
189    /// 创建失败时记住结果,不反复尝试。
190    browsers: Vec<(PoolConfig, OnceCell<Option<Arc<BrowserPool>>>)>,
191    /// 每个内核最近一次启动失败的时间:之后 [`LAUNCH_RETRY`] 内跳过它,不让每个请求都去试一次。
192    launch_failed: Vec<std::sync::Mutex<Option<Instant>>>,
193    /// 每个内核最近一次启动失败的原因,用来在“浏览器不可用”时告诉调用方真因(root、沙箱等)。
194    launch_notes: Vec<std::sync::Mutex<Option<String>>>,
195    /// 有内核找到了浏览器、但创建或启动失败(不是"没找到浏览器")。
196    launch_broken: std::sync::atomic::AtomicBool,
197    /// 爬取里同时进行的抓取数,等于全局并发。排队的页面只占一个很小的等待 future,
198    /// 拿到名额才创建完整的抓取状态机(十几 KB):同时爬上千个站时,排队的页面不再各占一份。
199    /// 上限跟着限速器的全局在途数目标走(USL 控制器,见 `pagesift_policy::RateLimiter`)。
200    crawl_slots: pagesift_policy::AdaptiveConcurrencyGate,
201    learner: crate::learn::HostLearner,
202    /// 要不要开浏览器、渲染结果怎么和 HTTP 结果合并。
203    planner: planner::RenderPlanner,
204    /// 自动升级的在线耗时分布:预算、导航耐心、早停时机都从这里来。
205    render_stats: render_stats::RenderStats,
206    audit: Option<Arc<crate::audit::Audit>>,
207    hooks: pagesift_hooks::Hooks,
208    secrets: std::collections::BTreeMap<String, ActionSecret>,
209    /// 多服务器网关:爬取里的页面交给它(工人执行,见 `pagesift` 的 `cluster` 模块)。单主机不设,路径不变。
210    pages: std::sync::OnceLock<Arc<dyn crate::PageRunner>>,
211    /// `/interact` 的会话表。
212    sessions: Arc<interact::Sessions>,
213}
214
215/// 文档从哪来:抓一个网址,或解析调用方上传的文件(`/v2/parse`)。
216pub(super) enum Source<'a> {
217    Url(&'a str, RobotsMode),
218    Upload(pagesift_api::types::Upload),
219}
220
221#[derive(Debug, Clone, Copy, PartialEq, Eq)]
222enum EngineChoice {
223    Http,
224    Browser,
225    Auto,
226}
227
228impl Engine for Scraper {
229    fn scrape<'a>(
230        &'a self,
231        url: &'a str,
232        opts: &'a ScrapeOptions,
233    ) -> BoxFuture<'a, Result<Document, ApiError>> {
234        Box::pin(Scraper::scrape(self, url, opts))
235    }
236
237    fn parse<'a>(
238        &'a self,
239        file: pagesift_api::types::Upload,
240        opts: &'a ScrapeOptions,
241    ) -> BoxFuture<'a, Result<Document, ApiError>> {
242        Box::pin(Scraper::parse(self, file, opts))
243    }
244
245    fn map<'a>(
246        &'a self,
247        req: &'a pagesift_api::types::MapRequest,
248    ) -> BoxFuture<'a, Result<Vec<pagesift_api::types::MapLink>, ApiError>> {
249        Box::pin(Scraper::map(self, req))
250    }
251
252    fn crawl<'a>(
253        &'a self,
254        req: &'a pagesift_api::types::CrawlRequest,
255        sink: Arc<dyn pagesift_api::CrawlSink>,
256    ) -> BoxFuture<'a, Result<(), ApiError>> {
257        Box::pin(Scraper::crawl(self, req, sink))
258    }
259
260    fn search<'a>(
261        &'a self,
262        req: &'a pagesift_api::types::SearchRequest,
263    ) -> BoxFuture<'a, Result<serde_json::Value, ApiError>> {
264        Box::pin(Scraper::search(self, req))
265    }
266
267    fn extract<'a>(
268        &'a self,
269        req: &'a pagesift_api::types::ExtractRequest,
270    ) -> BoxFuture<'a, Result<serde_json::Value, ApiError>> {
271        Box::pin(Scraper::extract(self, req))
272    }
273
274    fn search_budgeted<'a>(
275        &'a self,
276        req: &'a pagesift_api::types::SearchRequest,
277        budget: Arc<dyn pagesift_api::PageBudget>,
278    ) -> BoxFuture<'a, Result<serde_json::Value, ApiError>> {
279        Box::pin(async move { self.search_with_budget(req, Some(budget.as_ref())).await })
280    }
281
282    fn extract_budgeted<'a>(
283        &'a self,
284        req: &'a pagesift_api::types::ExtractRequest,
285        budget: Arc<dyn pagesift_api::PageBudget>,
286    ) -> BoxFuture<'a, Result<serde_json::Value, ApiError>> {
287        Box::pin(async move { self.extract_with_budget(req, Some(budget.as_ref())).await })
288    }
289
290    fn supports_interact(&self) -> bool {
291        self.interact_available()
292    }
293
294    /// 动作只在 Chrome 上验证过,和 interact 同一个条件。
295    fn supports_actions(&self) -> bool {
296        self.interact_available()
297    }
298
299    fn actions_unavailable(&self) -> &'static str {
300        "actions need Chrome: no Chrome or Chromium was found on this machine (run `pagesift doctor`)"
301    }
302
303    fn scrape_session<'a>(
304        &'a self,
305        url: &'a str,
306        opts: &'a ScrapeOptions,
307        keep: bool,
308        owner: Option<&'a str>,
309    ) -> BoxFuture<'a, Result<Document, ApiError>> {
310        Box::pin(Scraper::scrape_session(self, url, opts, keep, owner))
311    }
312
313    fn observe<'a>(
314        &'a self,
315        url: &'a str,
316        instruction: &'a str,
317    ) -> BoxFuture<'a, Result<pagesift_api::types::Observed, ApiError>> {
318        Box::pin(async move {
319            let (found, used) = Scraper::observe(self, url, instruction).await?;
320            let usage = format!("llm_usage: {} calls, {} tokens", used.calls, used.tokens);
321            Ok((found, vec![usage]))
322        })
323    }
324
325    fn find_similar<'a>(
326        &'a self,
327        url: &'a str,
328        selector: &'a str,
329        opts: &'a ScrapeOptions,
330    ) -> BoxFuture<'a, Result<pagesift_api::types::SimilarData, ApiError>> {
331        Box::pin(Scraper::find_similar(self, url, selector, opts))
332    }
333
334    fn interact<'a>(
335        &'a self,
336        id: &'a str,
337        req: &'a pagesift_api::types::InteractRequest,
338        owner: Option<&'a str>,
339    ) -> BoxFuture<'a, Result<pagesift_api::types::InteractResponse, ApiError>> {
340        Box::pin(Scraper::interact(self, id, req, owner))
341    }
342
343    fn stop_interact<'a>(
344        &'a self,
345        id: &'a str,
346        owner: Option<&'a str>,
347    ) -> BoxFuture<'a, Result<pagesift_api::types::InteractStopped, ApiError>> {
348        Box::pin(Scraper::stop_interact(self, id, owner))
349    }
350
351    fn agent_check(&self, req: &pagesift_api::types::AgentRequest) -> Result<(), ApiError> {
352        agent::check(self.llm.is_some(), self.search.is_some(), req)
353    }
354
355    fn agent<'a>(
356        &'a self,
357        req: &'a pagesift_api::types::AgentRequest,
358        sink: Arc<dyn pagesift_api::AgentSink>,
359    ) -> BoxFuture<'a, pagesift_api::types::AgentOutcome> {
360        Box::pin(async move {
361            match &self.llm {
362                Some(llm) => agent::run(self, llm, self.search.is_some(), req, sink.as_ref()).await,
363                None => pagesift_api::types::AgentOutcome {
364                    finish_reason: "error".into(),
365                    error: Some(pagesift_api::types::AgentFailure::from(
366                        &ApiError::unsupported("agent needs an LLM: set [llm] in pagesift.toml"),
367                    )),
368                    ..Default::default()
369                },
370            }
371        })
372    }
373
374    /// 统一准入:批量任务的并发取当前全局在途数目标(限速器的 USL 控制器)。
375    fn admitted_concurrency(&self) -> Option<usize> {
376        Some(self.concurrency())
377    }
378
379    fn supported_formats(&self) -> &'static [&'static str] {
380        match (self.llm.is_some(), self.store.is_some()) {
381            (true, true) => &[
382                "markdown",
383                "html",
384                "rawHtml",
385                "links",
386                "images",
387                "extract",
388                "summary",
389                "json",
390                "changeTracking",
391            ],
392            (true, false) => &[
393                "markdown", "html", "rawHtml", "links", "images", "extract", "summary", "json",
394            ],
395            (false, true) => &[
396                "markdown",
397                "html",
398                "rawHtml",
399                "links",
400                "images",
401                "extract",
402                "changeTracking",
403            ],
404            (false, false) => &["markdown", "html", "rawHtml", "links", "images", "extract"],
405        }
406    }
407}
408
409/// 放开内网时浏览器子请求的检查:只限制协议,不查地址。
410struct SchemeGuard;
411
412impl RequestGuard for SchemeGuard {
413    fn check<'a>(&'a self, req: &'a SubRequest) -> pagesift_cdp::BoxFuture<'a, Verdict> {
414        let ok = Url::parse(&req.url)
415            .is_ok_and(|u| matches!(u.scheme(), "http" | "https" | "data" | "blob" | "about"));
416        Box::pin(async move {
417            if ok {
418                Verdict::Allow
419            } else {
420                Verdict::Block("scheme not allowed".into())
421            }
422        })
423    }
424}
425
426#[cfg(test)]
427mod tests {
428    use super::*;
429
430    fn content(md: &str, published: bool, og_article: bool) -> pagesift_content::Document {
431        let mut d = pagesift_content::process("<p>x</p>", &Default::default());
432        d.markdown = md.to_string();
433        d.metadata.published_time = published.then(|| "2026-10-21T00:00:00Z".into());
434        if og_article {
435            d.metadata.extra.push(("og:type".into(), "article".into()));
436        }
437        d
438    }
439
440    #[test]
441    fn static_learning_cannot_suppress_client_code() {
442        for html in [
443            "<script>hydrate()</script>",
444            "<script src='/app.js'></script>",
445            "<SCRIPT TYPE='module' src='/view.js'></SCRIPT>",
446            "<body onload='hydrate()'>",
447            "<button onclick='hydrate()'>Open</button>",
448        ] {
449            assert!(has_client_code(html), "{html}");
450        }
451        for html in [
452            "<article><p>Short but complete.</p></article>",
453            "<script type='application/ld+json'>{}</script>",
454            "<script type='APPLICATION/JSON; charset=utf-8'>{}</script>",
455            "<script type='text/plain'>inert sample</script>",
456        ] {
457            assert!(!has_client_code(html), "{html}");
458        }
459    }
460
461    #[test]
462    fn render_rule_weights_cjk_and_trusts_short_articles() {
463        assert_eq!(text_weight("ab c\n"), 3);
464        assert_eq!(text_weight("日本語のニュース"), 8 * CJK_WEIGHT);
465        // 500 个汉字按 1500 算,不用渲染;500 个拉丁字母要渲染
466        assert!(!needs_render(&content(&"字".repeat(500), false, false)));
467        assert!(needs_render(&content(&"a".repeat(500), false, false)));
468        // 认出是文章且有 300 以上:不渲染;太短的文章照样渲染
469        assert!(!needs_render(&content(&"a".repeat(400), true, false)));
470        assert!(!needs_render(&content(&"a".repeat(400), false, true)));
471        assert!(needs_render(&content(&"a".repeat(100), true, true)));
472    }
473
474    #[test]
475    fn render_errors_are_classified() {
476        use pagesift_cdp::Error as E;
477        for (e, code) in [
478            (
479                E::Action {
480                    index: 0,
481                    message: "no element".into(),
482                },
483                ErrorCode::InvalidRequest,
484            ),
485            (E::InvalidOptions("x".into()), ErrorCode::InvalidRequest),
486            (E::ExecuteJavascriptDisabled, ErrorCode::UnsupportedOption),
487            (E::Timeout, ErrorCode::Timeout),
488            (E::Busy, ErrorCode::Busy),
489            (
490                E::Navigation("net::ERR_NAME_NOT_RESOLVED".into()),
491                ErrorCode::DnsFailure,
492            ),
493            (
494                E::Navigation("net::ERR_CONNECTION_RESET".into()),
495                ErrorCode::NetworkError,
496            ),
497            (
498                E::Navigation("net::ERR_CERT_DATE_INVALID".into()),
499                ErrorCode::TlsCertExpired,
500            ),
501            (
502                E::Navigation("net::ERR_CERT_COMMON_NAME_INVALID".into()),
503                ErrorCode::TlsHostnameMismatch,
504            ),
505            (
506                E::Navigation("net::ERR_CERT_AUTHORITY_INVALID".into()),
507                ErrorCode::TlsUntrustedRoot,
508            ),
509            (
510                E::Navigation("net::ERR_CERT_REVOKED".into()),
511                ErrorCode::TlsError,
512            ),
513            (E::ConnectionClosed, ErrorCode::UpstreamError),
514        ] {
515            assert_eq!(render_error_code(&e), code, "{e}");
516        }
517    }
518
519    #[test]
520    fn finds_only_visible_same_origin_and_srcdoc_iframes() {
521        let base = Url::parse("https://a.test/page").unwrap();
522        let html = r#"<body>
523            <iframe src="https://www.googletagmanager.com/ns.html"></iframe>
524            <iframe src="/pixel" style="display: none"></iframe>
525            <iframe src="/hidden" aria-hidden="true"></iframe>
526            <iframe src="/tiny" width="1" height="1"></iframe>
527            <iframe src="about:blank"></iframe>
528            <iframe src="/comments?id=1&amp;x=2" height="160"></iframe>
529            <iframe srcdoc="&lt;p&gt;inline&lt;/p&gt;"></iframe>
530            <iframe srcdoc="&lt;p&gt;x&lt;/p&gt;" style="visibility:hidden"></iframe>
531        </body>"#;
532        let frames = content_iframes(html, &base);
533        assert_eq!(frames.len(), 2, "{frames:?}");
534        assert_eq!(frames[0].0, "/comments?id=1&x=2");
535        assert_eq!(
536            frames[0].1.as_ref().map(Url::as_str),
537            Some("https://a.test/comments?id=1&x=2")
538        );
539        assert_eq!(frames[1], ("<p>inline</p>".to_string(), None));
540        assert!(content_iframes("<p>no frames</p>", &base).is_empty());
541    }
542
543    #[test]
544    fn replaces_the_matching_iframe_element() {
545        let mut html = r#"<p>a</p><IFRAME src="/x" hidden></IFRAME><iframe src="/x">fallback</iframe><p>b</p>"#
546            .to_string();
547        assert!(replace_iframe(&mut html, "<div>X</div>", |el| {
548            !hidden_frame(el) && src_is(el, "/x")
549        }));
550        assert_eq!(
551            html,
552            r#"<p>a</p><IFRAME src="/x" hidden></IFRAME><div>X</div><p>b</p>"#
553        );
554        assert!(!replace_iframe(&mut html, "", |el| src_is(el, "/missing")));
555    }
556
557    #[test]
558    fn takes_the_body_of_an_iframe_document() {
559        assert_eq!(
560            body_inner("<html><head><title>t</title></head><BODY class=x><p>hi</p></body></html>"),
561            "<p>hi</p>"
562        );
563        assert_eq!(body_inner("<p>fragment</p>"), "<p>fragment</p>");
564    }
565
566    #[test]
567    fn meta_keys_follow_firecrawl_style() {
568        assert_eq!(pagesift_sink::meta::key("og:image"), "ogImage");
569        assert_eq!(pagesift_sink::meta::key("og:site_name"), "ogSiteName");
570        assert_eq!(
571            pagesift_sink::meta::key("article:published_time"),
572            "articlePublishedTime"
573        );
574        assert_eq!(pagesift_sink::meta::key("dc.title"), "dcTitle");
575    }
576}