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*/
import { browser } from '$app/environment';
+import { base } from '$app/paths';
import { MCPService } from '$lib/services/mcp.service';
import { config, settingsStore } from '$lib/stores/settings.svelte';
import { mcpResourceStore } from '$lib/stores/mcp-resources.svelte';
ToolCallType
} from '$lib/enums';
import {
+ CORS_PROXY_ENDPOINT,
DEFAULT_CACHE_TTL_MS,
DEFAULT_MCP_CONFIG,
EXPECTED_THEMED_ICON_PAIR_COUNT,
import type { DatabaseMessageExtraMcpResource, McpServerOverride } from '$lib/types/database';
import type { SettingsConfigType } from '$lib/types/settings';
-export function buildMcpClientConfig(
- cfg: SettingsConfigType,
- perChatOverrides?: McpServerOverride[]
-): MCPClientConfig | undefined {
- return buildMcpClientConfigInternal(cfg, perChatOverrides);
-}
-
-/**
- * Internal helper to build MCP client config.
- * Kept as standalone function for external use and tests.
- */
-export function buildMcpClientConfigInternal(
- cfg: SettingsConfigType,
- perChatOverrides?: McpServerOverride[]
-): MCPClientConfig | undefined {
- const rawServers = parseServerSettings(cfg.mcpServers);
- if (!rawServers.length) {
- return undefined;
- }
-
- const servers: Record<string, MCPServerConfig> = {};
-
- for (const [index, entry] of rawServers.entries()) {
- if (!checkServerEnabled(entry, perChatOverrides)) continue;
- const normalized = buildServerConfig(entry);
- if (normalized) servers[generateMcpServerId(entry.id, index)] = normalized;
- }
-
- if (Object.keys(servers).length === 0) {
- return undefined;
- }
-
- return {
- protocolVersion: DEFAULT_MCP_CONFIG.protocolVersion,
- capabilities: DEFAULT_MCP_CONFIG.capabilities,
- clientInfo: DEFAULT_MCP_CONFIG.clientInfo,
- requestTimeoutMs: Math.round(DEFAULT_MCP_CONFIG.requestTimeoutSeconds * 1000),
- servers
- };
-}
-
-/**
- * Generates a unique server ID from an optional ID string or index.
- * @deprecated Use MCPStore.#generateServerId instead
- */
-function generateMcpServerId(id: unknown, index: number): string {
- if (typeof id === 'string' && id.trim()) {
- return id.trim();
- }
-
- return `${MCP_SERVER_ID_PREFIX}-${index + 1}`;
-}
-
-/**
- * Parses raw server settings from config into MCPServerSettingsEntry array.
- * @deprecated Use MCPStore.#parseServerSettings instead
- */
-function parseServerSettings(rawServers: unknown): MCPServerSettingsEntry[] {
- if (!rawServers) {
- return [];
- }
-
- let parsed: unknown;
- if (typeof rawServers === 'string') {
- const trimmed = rawServers.trim();
- if (!trimmed) {
- return [];
- }
-
- try {
- parsed = JSON.parse(trimmed);
- } catch (error) {
- console.warn('[MCP] Failed to parse mcpServers JSON:', error);
-
- return [];
- }
- } else {
- parsed = rawServers;
- }
- if (!Array.isArray(parsed)) {
- return [];
- }
-
- return parsed.map((entry, index) => {
- const url = typeof entry?.url === 'string' ? entry.url.trim() : '';
- const headers = typeof entry?.headers === 'string' ? entry.headers.trim() : undefined;
-
- return {
- id: generateMcpServerId((entry as { id?: unknown })?.id, index),
- enabled: Boolean((entry as { enabled?: unknown })?.enabled),
- url,
- name: (entry as { name?: string })?.name,
- requestTimeoutSeconds: DEFAULT_MCP_CONFIG.requestTimeoutSeconds,
- headers: headers || undefined,
- useProxy: Boolean((entry as { useProxy?: unknown })?.useProxy)
- } satisfies MCPServerSettingsEntry;
- });
-}
-
-/**
- * Builds server configuration from a settings entry.
- * @deprecated Use MCPStore.#buildServerConfig instead
- */
-function buildServerConfig(
- entry: MCPServerSettingsEntry,
- connectionTimeoutMs = DEFAULT_MCP_CONFIG.connectionTimeoutMs
-): MCPServerConfig | undefined {
- if (!entry?.url) {
- return undefined;
- }
-
- let headers: Record<string, string> | undefined;
- if (entry.headers) {
- try {
- const parsed = JSON.parse(entry.headers);
- if (typeof parsed === 'object' && parsed !== null && !Array.isArray(parsed))
- headers = parsed as Record<string, string>;
- } catch {
- console.warn('[MCP] Failed to parse custom headers JSON:', entry.headers);
- }
- }
-
- return {
- url: entry.url,
- transport: detectMcpTransportFromUrl(entry.url),
- handshakeTimeoutMs: connectionTimeoutMs,
- requestTimeoutMs: Math.round(entry.requestTimeoutSeconds * 1000),
- headers,
- useProxy: entry.useProxy
- };
-}
-
-/**
- * Checks if a server is enabled, considering per-chat overrides.
- * @deprecated Use MCPStore.#checkServerEnabled instead
- */
-function checkServerEnabled(
- server: MCPServerSettingsEntry,
- perChatOverrides?: McpServerOverride[]
-): boolean {
- if (!server.enabled) {
- return false;
- }
-
- if (perChatOverrides) {
- const override = perChatOverrides.find((o) => o.serverId === server.id);
-
- return override?.enabled ?? false;
- }
-
- return false;
-}
-
class MCPStore {
private _isInitializing = $state(false);
private _error = $state<string | null>(null);
private _toolCount = $state(0);
private _connectedServers = $state<string[]>([]);
private _healthChecks = $state<Record<string, HealthCheckState>>({});
+ private _proxyAvailable = $state(false);
private connections = new Map<string, MCPConnection>();
private toolsIndex = new Map<string, string>();
private initPromise: Promise<boolean> | null = null;
private activeFlowCount = 0;
+ constructor() {
+ if (browser) {
+ this.probeProxy();
+ }
+ }
+
+ /**
+ * Probes the CORS proxy endpoint to determine availability.
+ * The endpoint is only registered when llama-server runs with --webui-mcp-proxy.
+ */
+ async probeProxy(): Promise<void> {
+ try {
+ const response = await fetch(`${base}${CORS_PROXY_ENDPOINT}`, { method: 'HEAD' });
+ this._proxyAvailable = response.status !== 404;
+ } catch {
+ this._proxyAvailable = false;
+ }
+ }
+
+ get isProxyAvailable(): boolean {
+ return this._proxyAvailable;
+ }
+
/**
* Generates a unique server ID from an optional ID string or index.
*/
getServerLabel(server: MCPServerSettingsEntry): string {
const healthState = this.getHealthCheckState(server.id);
+
if (healthState?.status === HealthCheckStatus.SUCCESS)
return (
healthState.serverInfo?.title || healthState.serverInfo?.name || server.name || server.url
*/
#proxyIconSrc(src: string): string {
if (src.startsWith('data:')) return src;
+ if (!this._proxyAvailable) return src;
return getProxiedUrlString(src);
}
}
}
- return getFaviconUrl(server.url);
+ return getFaviconUrl(server.url, this._proxyAvailable);
}
isAnyServerLoading(): boolean {
export const mcpIsInitialized = () => mcpStore.isInitialized;
export const mcpError = () => mcpStore.error;
export const mcpIsEnabled = () => mcpStore.isEnabled;
+export const mcpIsProxyAvailable = () => mcpStore.isProxyAvailable;
export const mcpAvailableTools = () => mcpStore.availableTools;
export const mcpConnectedServerCount = () => mcpStore.connectedServerCount;
export const mcpConnectedServerNames = () => mcpStore.connectedServerNames;
overview / pkg / ggml / sources / llama.cpp / commitdiff