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epcim/gist:c029716988f0030c90596446397c9eff

Forked from jrwren/gist:ff46f4ba177f042ccdc48c080c198f60
Created November 12, 2024 09:23
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  1. @jrwren jrwren created this gist Apr 18, 2017.
    45 changes: 45 additions & 0 deletions gistfile1.txt
    View file
    Original file line number Diff line number Diff line change
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    #!/bin/bash

    # List the blobs in an Azure storage container.

    echo "usage: ${0##*/} <container-name> [blob-name]"

    storage_account="$AZURE_STORAGE_ACCOUNT"
    container_name="$1"
    access_key="$AZURE_STORAGE_KEY"

    blob_store_url="blob.core.windows.net"
    authorization="SharedKey"

    request_method="GET"
    request_date=$(TZ=GMT date "+%a, %d %h %Y %H:%M:%S %Z")
    storage_service_version="2011-08-18"

    # HTTP Request headers
    x_ms_date_h="x-ms-date:$request_date"
    x_ms_version_h="x-ms-version:$storage_service_version"

    # Build the signature string
    canonicalized_headers="${x_ms_date_h}\n${x_ms_version_h}"
    canonicalized_resource="/${storage_account}/${container_name}\ncomp:list\nrestype:container"
    [[ "" != "$2" ]] && canonicalized_resource="/${storage_account}/${container_name}/$2"

    string_to_sign="${request_method}\n\n\n\n\n\n\n\n\n\n\n\n${canonicalized_headers}\n${canonicalized_resource}"

    # Decode the Base64 encoded access key, convert to Hex.
    decoded_hex_key="$(echo -n $access_key | base64 -d -w0 | xxd -p -c256)"

    # Create the HMAC signature for the Authorization header
    signature=$(printf "$string_to_sign" | openssl dgst -sha256 -mac HMAC -macopt "hexkey:$decoded_hex_key" -binary | base64 -w0)

    authorization_header="Authorization: $authorization $storage_account:$signature"

    URL="https://${storage_account}.${blob_store_url}/${container_name}?restype=container&comp=list"

    [[ "" != "$2" ]] && URL="https://${storage_account}.${blob_store_url}/${container_name}/$2"

    curl -v \
    -H "$x_ms_date_h" \
    -H "$x_ms_version_h" \
    -H "$authorization_header" \
    "$URL"