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https://github.com/coder/coder.git
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4e57b9fbdc
- As part of merging support for Template RBAC and user groups a permission check on reading files was relaxed. With the addition of admin roles on individual templates, regular users are now able to push template versions if they have inherited the 'admin' role for a template. In order to do so they need to be able to create and read their own files. Since collisions on hash in the past were ignored, this means that a regular user who pushes a template version with a file hash that collides with an existing hash will not be able to read the file (since it belongs to another user). This commit fixes the underlying problem which was that the files table had a primary key on the 'hash' column. This was not a problem at the time because only template admins and other users with similar elevated roles were able to read all files regardless of ownership. To fix this a new column and primary key 'id' has been introduced to the files table. The unique constraint has been updated to be hash+created_by. Tables (provisioner_jobs) that referenced files.hash have been updated to reference files.id. Relevant API endpoints have also been updated.
55 lines
1.4 KiB
Go
55 lines
1.4 KiB
Go
package codersdk
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import (
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"context"
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"encoding/json"
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"fmt"
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"io"
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"net/http"
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"github.com/google/uuid"
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)
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const (
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ContentTypeTar = "application/x-tar"
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)
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// UploadResponse contains the hash to reference the uploaded file.
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type UploadResponse struct {
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ID uuid.UUID `json:"hash"`
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}
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// Upload uploads an arbitrary file with the content type provided.
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// This is used to upload a source-code archive.
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func (c *Client) Upload(ctx context.Context, contentType string, content []byte) (UploadResponse, error) {
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res, err := c.Request(ctx, http.MethodPost, "/api/v2/files", content, func(r *http.Request) {
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r.Header.Set("Content-Type", contentType)
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})
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if err != nil {
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return UploadResponse{}, err
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}
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defer res.Body.Close()
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if res.StatusCode != http.StatusCreated && res.StatusCode != http.StatusOK {
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return UploadResponse{}, readBodyAsError(res)
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}
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var resp UploadResponse
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return resp, json.NewDecoder(res.Body).Decode(&resp)
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}
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// Download fetches a file by uploaded hash.
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func (c *Client) Download(ctx context.Context, id uuid.UUID) ([]byte, string, error) {
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res, err := c.Request(ctx, http.MethodGet, fmt.Sprintf("/api/v2/files/%s", id.String()), nil)
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if err != nil {
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return nil, "", err
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}
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defer res.Body.Close()
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if res.StatusCode != http.StatusOK {
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return nil, "", readBodyAsError(res)
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}
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data, err := io.ReadAll(res.Body)
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if err != nil {
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return nil, "", err
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}
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return data, res.Header.Get("Content-Type"), nil
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}
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