[{"_1":2,"_3":-5,"_4":-5},"loaderData",{"_5":6,"_7":8},"actionData","errors","root",{"_110":111,"_112":113},"routes/embed.x.$handle.$name.$",{"_9":10,"_11":12,"_13":14,"_15":16,"_17":18,"_19":20,"_21":-5},"handle","gggfdb","name","portal-proxy","path","server/proxy.ts","project",{"_22":48,"_11":12,"_35":49,"_50":-5,"_51":44,"_52":53,"_54":53,"_55":56,"_57":-5,"_58":59,"_60":61,"_62":34,"_63":-5,"_64":-5,"_65":38,"_66":67,"_68":-5,"_69":-5,"_70":-5,"_71":-5,"_72":73,"_74":73,"_75":76,"_77":76,"_78":76,"_79":73,"_80":73,"_81":82,"_83":84,"_85":86,"_87":44},"file",{"_22":23,"_11":24,"_25":26,"_27":28,"_29":30,"_31":32,"_33":34,"_35":36,"_37":38,"_39":40,"_41":42,"_43":44,"_45":-5,"_13":46},"permalink","https://www.val.town/x/gggfdb/portal-proxy/code/server/proxy.ts","extension","id","e588aa2f-ca5d-4d2b-8c4c-fb947d473ee6","proxy.ts","fileId","01a04897-a6a1-74d7-9011-228c801709c5","parentId","01a04897-a6a1-74d7-9011-269d379ccc5b","branchId","994eb021-1ee7-4a30-b53d-da4f02d7a364","branchVersion",1,"latest",true,"createdAt",["D",1787924293192],"version",0,"fileType","script","content","// Core proxy logic: fetch a target URL and rewrite its HTML/CSS so that\n// links, assets, and forms route back through this proxy.\n\nconst PROXY_PREFIX = \"/p/\";\n\nconst SEARCH_ENGINES: Record string> = {\n duckduckgo: (q) => `https://duckduckgo.com/html/?q=${encodeURIComponent(q)}`,\n bing: (q) => `https://www.bing.com/search?q=${encodeURIComponent(q)}`,\n google: (q) => `https://www.google.com/search?q=${encodeURIComponent(q)}`,\n};\n\n/** Turn user input into a real URL. If it's not a URL, treat it as a search. */\nexport function normalizeTarget(input: string, engine = \"duckduckgo\"): string {\n const raw = input.trim();\n if (!raw) return \"\";\n // Looks like a domain or URL?\n const looksLikeUrl = /^https?:\\/\\//i.test(raw) ||\n /^[^\\s]+\\.[a-z]{2,}(\\/|$|\\?)/i.test(raw);\n if (looksLikeUrl) {\n return /^https?:\\/\\//i.test(raw) ? raw : `https://${raw}`;\n }\n // Otherwise, run a search through the chosen engine\n const search = SEARCH_ENGINES[engine] ?? SEARCH_ENGINES.duckduckgo;\n return search(raw);\n}\n\n/** Encode a target URL into a proxied path. */\nexport function toProxyPath(targetUrl: string): string {\n return PROXY_PREFIX + encodeURIComponent(targetUrl);\n}\n\n/** Resolve a (possibly relative) URL against a base into an absolute URL. */\nfunction absolutize(base: string, ref: string): string | null {\n try {\n if (!ref || ref.startsWith(\"data:\") || ref.startsWith(\"javascript:\") ||\n ref.startsWith(\"mailto:\") || ref.startsWith(\"#\") || ref.startsWith(\"about:\")) {\n return null;\n }\n return new URL(ref, base).toString();\n } catch {\n return null;\n }\n}\n\n/** Rewrite an absolute URL into a proxied path. */\nfunction rewriteUrl(base: string, ref: string): string {\n const abs = absolutize(base, ref);\n if (!abs) return ref;\n return toProxyPath(abs);\n}\n\n/** Rewrite all URL-bearing attributes and embedded CSS in an HTML document. */\nexport function rewriteHtml(html: string, base: string): string {\n let out = html;\n\n // Strip CSP / frame-busting meta tags that block proxying\n out = out.replace(/]+http-equiv=[\"']?content-security-policy[\"']?[^>]*>/gi, \"\");\n out = out.replace(/]+http-equiv=[\"']?x-frame-options[\"']?[^>]*>/gi, \"\");\n\n // Rewrite href/src/action attributes\n out = out.replace(\n /\\b(href|src|action|poster|data-src)\\s*=\\s*[\"']([^\"']*)[\"']/gi,\n (m, attr, val) => `${attr}=\"${rewriteUrl(base, val)}\"`,\n );\n\n // Rewrite srcset (comma-separated list of URLs + descriptors)\n out = out.replace(/\\bsrcset\\s*=\\s*[\"']([^\"']*)[\"']/gi, (m, val) => {\n const rewritten = val\n .split(\",\")\n .map((part: string) => {\n const seg = part.trim();\n const [url, ...rest] = seg.split(/\\s+/);\n return [rewriteUrl(base, url), ...rest].join(\" \");\n })\n .join(\", \");\n return `srcset=\"${rewritten}\"`;\n });\n\n // Rewrite url(...) inside inline