91 lines
2.3 KiB
Go
91 lines
2.3 KiB
Go
// Copyright (c) 2026 Probo Inc <hello@getprobo.com>.
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice appear in all copies.
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//
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// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
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// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
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// AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
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// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
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// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
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// OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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// PERFORMANCE OF THIS SOFTWARE.
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package browser
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import (
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"context"
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"github.com/chromedp/chromedp"
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"go.probo.inc/probo/pkg/agent"
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)
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type (
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navigateParams struct {
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URL string `json:"url" jsonschema:"The URL to navigate to"`
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}
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navigateResult struct {
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Title string `json:"title"`
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Description string `json:"description"`
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FinalURL string `json:"final_url"`
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}
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)
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func NavigateToURLTool(b *Browser) agent.Tool {
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return agent.FunctionTool(
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"navigate_to_url",
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"Navigate to a URL and return the page title, meta description, and final URL after redirects.",
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func(ctx context.Context, p navigateParams) (agent.ToolResult, error) {
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if r := b.checkAlive(); r != nil {
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return *r, nil
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}
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if r := b.checkURL(p.URL); r != nil {
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return *r, nil
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}
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if r := checkPDF(p.URL); r != nil {
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return *r, nil
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}
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ctx, timeoutCancel := withToolTimeout(ctx)
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defer timeoutCancel()
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tabCtx, cancel := b.NewTab(ctx)
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defer cancel()
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var (
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title string
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description string
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finalURL string
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)
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err := chromedp.Run(
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tabCtx,
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chromedp.Navigate(p.URL),
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waitForPage(),
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chromedp.Title(&title),
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chromedp.Evaluate(
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`(() => {
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const meta = document.querySelector('meta[name="description"]');
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return meta ? meta.getAttribute("content") : "";
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})()`,
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&description,
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),
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chromedp.Location(&finalURL),
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)
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if err != nil {
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return agent.ResultError(b.classifyError(ctx, p.URL, err)), nil
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}
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return agent.ResultJSON(navigateResult{
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Title: title,
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Description: description,
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FinalURL: finalURL,
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}), nil
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},
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)
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}
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