4c57d201a4
The source headers, LICENSE files, and license metadata had drifted apart. Align the entire project to MIT: - Convert every source-file header to the MIT text across all comment styles (Go, TS, TSX, JS, MJS, SQL, CSS, GraphQL, shell), including SPDX-License-Identifier tags - Set the root and cookie-banner LICENSE files to the MIT text with a "MIT License" title line - Switch the package.json license fields, Docker image label, and cookie-banner README to MIT - Update docs and the genmodels header generator accordingly - Normalize copyright lines to a single format (Copyright (c) <year(s)> Probo Inc <hello@probo.com>.): unify the hello@getprobo.com and hello@probo.inc emails to hello@probo.com and the comma-separated years to a hyphenated range Genuine third-party references are intentionally left untouched: the Lucide icon attributions (Lucide is ISC) and the trivy dependency license allowlist. Signed-off-by: Sacha Al Himdani <sacha@probo.com>
92 lines
3.0 KiB
Go
92 lines
3.0 KiB
Go
// Copyright (c) 2026 Probo Inc <hello@probo.com>.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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package esign
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import (
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"bytes"
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"context"
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"crypto"
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"fmt"
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"io"
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"net/http"
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"github.com/digitorus/timestamp"
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"go.gearno.de/kit/httpclient"
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)
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// TSAClient sends RFC 3161 timestamp requests to a Trusted Timestamp Authority.
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type TSAClient struct {
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URL string
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HTTPClient *http.Client
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}
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// Timestamp sends an RFC 3161 TimeStampReq via HTTP POST to the TSA.
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// The data parameter is the raw bytes to timestamp (typically the seal hex
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// string as UTF-8 bytes). CreateRequest internally computes SHA-256(data)
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// to build the MessageImprint. Returns the raw DER-encoded TimeStampResp bytes.
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func (c *TSAClient) Timestamp(ctx context.Context, data []byte) ([]byte, error) {
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tsReq, err := timestamp.CreateRequest(
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bytes.NewReader(data),
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×tamp.RequestOptions{
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Hash: crypto.SHA256,
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Certificates: true,
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},
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)
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if err != nil {
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return nil, fmt.Errorf("esign: cannot create timestamp request: %w", err)
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}
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httpClient := c.HTTPClient
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if httpClient == nil {
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httpClient = httpclient.DefaultPooledClient()
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}
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req, err := http.NewRequestWithContext(ctx, http.MethodPost, c.URL, bytes.NewReader(tsReq))
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if err != nil {
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return nil, fmt.Errorf("esign: cannot build TSA HTTP request: %w", err)
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}
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req.Header.Set("Content-Type", "application/timestamp-query")
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resp, err := httpClient.Do(req)
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if err != nil {
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return nil, fmt.Errorf("esign: TSA request failed: %w", err)
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}
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defer func() { _ = resp.Body.Close() }()
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if resp.StatusCode != http.StatusOK {
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return nil, fmt.Errorf("esign: TSA returned HTTP %d", resp.StatusCode)
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}
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respBytes, err := io.ReadAll(resp.Body)
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if err != nil {
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return nil, fmt.Errorf("esign: cannot read TSA response: %w", err)
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}
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// Validate the response: checks PKIStatus and parses the signed TSTInfo.
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if _, err := timestamp.ParseResponse(respBytes); err != nil {
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return nil, fmt.Errorf("esign: invalid TSA response: %w", err)
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}
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return respBytes, nil
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}
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