lingrino/vaku

package vaku

import (
    "errors"
)

var (
    // ErrPathRead when PathRead fails.
    ErrPathRead = errors.New("path read")
    // ErrVaultRead when the underlying Vault API read fails.
    ErrVaultRead = errors.New("vault read")
)

// PathRead reads data at a path.
func (c *Client) PathRead(p string) (map[string]any, error) {
    vaultPath, mv, err := c.rewritePath(p, vaultRead)
    if err != nil {
        return nil, newWrapErr(p, ErrPathRead, err)
    }

    secret, err := c.vl.Read(vaultPath)
    if err != nil {
        return nil, newWrapErr(p, ErrPathRead, newWrapErr(err.Error(), ErrVaultRead, nil))
    }

    if secret == nil || secret.Data == nil {
        return nil, nil
    }

    data := secret.Data
    if mv == mv2 {
        data = extractV2Read(data)
    }

    return data, nil
}

// extractV2Read returns data["data"] if the secret is not deleted or destroyed.
func extractV2Read(data map[string]any) map[string]any {
    if data == nil {
        return nil
    }

    if isDeleted(data) {
        return nil
    }

    dd := data["data"]
    if dd == nil {
        return nil
    }

    dm, ok := dd.(map[string]any)
    if !ok {
        return nil
    }

    return dm
}

// isDeleted checks if the secret has been deleted or destroyed.
func isDeleted(data map[string]any) bool {
    metadata, ok := data["metadata"].(map[string]any)
    if !ok {
        return true
    }
    deletionTime, ok := metadata["deletion_time"].(string)
    if !ok || deletionTime != "" {
        return true
    }
    destroyed, ok := metadata["destroyed"].(bool)
    if !ok || destroyed {
        return true
    }

    return false
}