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0e759d2 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 | import { parseStringPromise } from "xml2js";
import { WebCrawler } from "./crawler";
import { scrapeURL } from "../scrapeURL";
import { scrapeOptions, TimeoutSignal } from "../../controllers/v1/types";
import type { Logger } from "winston";
const useFireEngine =
process.env.FIRE_ENGINE_BETA_URL !== "" &&
process.env.FIRE_ENGINE_BETA_URL !== undefined;
export async function getLinksFromSitemap(
{
sitemapUrl,
urlsHandler,
mode = "axios",
}: {
sitemapUrl: string;
urlsHandler(urls: string[]): unknown;
mode?: "axios" | "fire-engine";
},
logger: Logger,
crawlId: string,
sitemapsHit: Set<string>,
abort?: AbortSignal,
mock?: string,
): Promise<number> {
if (sitemapsHit.size >= 20) {
return 0;
}
if (sitemapsHit.has(sitemapUrl)) {
logger.warn("This sitemap has already been hit.", { sitemapUrl });
return 0;
}
sitemapsHit.add(sitemapUrl);
try {
let content: string = "";
try {
const response = await scrapeURL(
"sitemap;" + crawlId,
sitemapUrl,
scrapeOptions.parse({ formats: ["rawHtml"], useMock: mock }),
{
forceEngine: [
"fetch",
...((mode === "fire-engine" && useFireEngine) ? ["fire-engine;tlsclient" as const] : []),
],
v0DisableJsDom: true,
abort,
teamId: "sitemap",
},
);
if (
response.success &&
response.document.metadata.statusCode >= 200 &&
response.document.metadata.statusCode < 300
) {
content = response.document.rawHtml!;
} else {
logger.error(
`Request failed for sitemap fetch`,
{
method: "getLinksFromSitemap",
mode,
sitemapUrl,
error: response.success
? response.document
: response.error,
},
);
return 0;
}
} catch (error) {
if (error instanceof TimeoutSignal) {
throw error;
} else {
logger.error(`Request failed for sitemap fetch`, {
method: "getLinksFromSitemap",
mode,
sitemapUrl,
error,
});
return 0;
}
}
const parsed = await parseStringPromise(content);
const root = parsed.urlset || parsed.sitemapindex;
let count = 0;
if (root && root.sitemap) {
// Handle sitemap index files
const sitemapUrls = root.sitemap
.filter((sitemap) => sitemap.loc && sitemap.loc.length > 0)
.map((sitemap) => sitemap.loc[0].trim());
const sitemapPromises: Promise<number>[] = sitemapUrls.map((sitemapUrl) =>
getLinksFromSitemap({ sitemapUrl, urlsHandler, mode }, logger, crawlId, sitemapsHit, abort, mock),
);
const results = await Promise.all(sitemapPromises);
count = results.reduce((a, x) => a + x);
} else if (root && root.url) {
// Check if any URLs point to additional sitemaps
const xmlSitemaps: string[] = root.url
.filter(
(url) =>
url.loc &&
url.loc.length > 0 &&
url.loc[0].trim().toLowerCase().endsWith(".xml"),
)
.map((url) => url.loc[0].trim());
if (xmlSitemaps.length > 0) {
// Recursively fetch links from additional sitemaps
const sitemapPromises = xmlSitemaps.map((sitemapUrl) =>
getLinksFromSitemap(
{ sitemapUrl: sitemapUrl, urlsHandler, mode },
logger,
crawlId,
sitemapsHit,
abort,
mock,
),
);
count += (await Promise.all(sitemapPromises)).reduce(
(a, x) => a + x,
0,
);
}
const validUrls = root.url
.filter(
(url) =>
url.loc &&
url.loc.length > 0 &&
!url.loc[0].trim().toLowerCase().endsWith(".xml") &&
!WebCrawler.prototype.isFile(url.loc[0].trim()),
)
.map((url) => url.loc[0].trim());
count += validUrls.length;
const h = urlsHandler(validUrls);
if (h instanceof Promise) {
await h;
}
}
return count;
} catch (error) {
logger.debug(`Error processing sitemapUrl: ${sitemapUrl}`, {
method: "getLinksFromSitemap",
mode,
sitemapUrl,
error,
});
}
return 0;
}
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