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61 lines
3.1 KiB
C#
61 lines
3.1 KiB
C#
// Copyright (c) Microsoft. All rights reserved.
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namespace SampleApp;
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/// <summary>
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/// Options that control which URLs the <see cref="WebBrowsingTool"/> is permitted to access.
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/// </summary>
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/// <remarks>
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/// <para>
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/// By default, <b>no hosts are accessible</b>. You must explicitly opt in to one or more
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/// of the access modes below. The validation order is:
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/// </para>
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/// <list type="number">
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/// <item><description>If the host matches an entry in <see cref="AllowedHosts"/>, the request is allowed.</description></item>
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/// <item><description>If the resolved IP is a public address and <see cref="AllowPublicNetworks"/> is <see langword="true"/>, the request is allowed.</description></item>
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/// <item><description>If the resolved IP is a private/loopback/link-local address and <see cref="AllowPrivateNetworks"/> is <see langword="true"/>, the request is allowed.</description></item>
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/// <item><description>If <see cref="AllowAllHosts"/> is <see langword="true"/>, the request is allowed.</description></item>
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/// <item><description>Otherwise, the request is blocked.</description></item>
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/// </list>
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/// </remarks>
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internal sealed class WebBrowsingToolOptions
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{
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/// <summary>
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/// Gets or sets a list of host patterns that are always permitted, regardless of other settings.
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/// Patterns support wildcard prefix matching (e.g., <c>"*.example.com"</c> matches <c>"docs.example.com"</c>).
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/// Exact host names (e.g., <c>"docs.microsoft.com"</c>) are also supported.
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/// </summary>
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/// <remarks>This has the highest priority — if a host matches, it is allowed immediately.</remarks>
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public IReadOnlyList<string>? AllowedHosts { get; set; }
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/// <summary>
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/// Gets or sets a value indicating whether public internet hosts (non-private, non-loopback, non-link-local IPs) are permitted.
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/// Default is <see langword="false"/>.
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/// </summary>
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public bool AllowPublicNetworks { get; set; }
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/// <summary>
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/// Gets or sets a value indicating whether private network hosts are permitted.
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/// This includes RFC 1918 addresses (10.x.x.x, 172.16-31.x.x, 192.168.x.x),
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/// loopback (127.x.x.x, ::1), link-local (169.254.x.x, fe80::),
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/// and cloud metadata endpoints (169.254.169.254).
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/// Default is <see langword="false"/>.
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/// </summary>
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/// <remarks>
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/// <b>Warning:</b> Enabling this allows the agent to make requests to internal services,
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/// localhost, and cloud metadata endpoints. Only enable this if you understand the SSRF risks.
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/// </remarks>
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public bool AllowPrivateNetworks { get; set; }
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/// <summary>
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/// Gets or sets a value indicating whether all hosts are permitted without any restriction.
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/// Default is <see langword="false"/>.
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/// </summary>
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/// <remarks>
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/// <b>⚠️ UNSAFE:</b> Enabling this disables all network boundary checks and allows the agent
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/// to access any URL, including internal services, cloud metadata endpoints, and localhost.
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/// Only use this for trusted, isolated environments where SSRF is not a concern.
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/// </remarks>
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public bool AllowAllHosts { get; set; }
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}
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