public static string MakeCanonicalString(string verb, string bucketName, string key, SortedList queryParams, SortedList headers, string expires)
{
StringBuilder buf = new StringBuilder();
buf.Append(verb);
buf.Append("\n");
ThreeSharpStringComparer comparer = new ThreeSharpStringComparer(CompareInfo.GetCompareInfo(""), CompareOptions.StringSort);
SortedList interestingHeaders = new SortedList(comparer);
if (headers != null)
{
foreach (string header in headers.Keys)
{
string lk = header.ToLower();
if (lk.Equals("content-type") ||
lk.Equals("content-md5") ||
lk.Equals("date") ||
lk.StartsWith(AMAZON_HEADER_PREFIX))
{
interestingHeaders.Add(lk, headers[header]);
}
}
}
if (interestingHeaders[ALTERNATIVE_DATE_HEADER] != null)
{
interestingHeaders.Add("date", "");
}
// if the expires is non-null, use that for the date field. this
// trumps the x-amz-date behavior.
if (expires != null)
{
interestingHeaders.Add("date", expires);
}
// these headers require that we still put a new line after them,
// even if they don't exist.
{
string[] newlineHeaders = { "content-type", "content-md5" };
foreach (string header in newlineHeaders)
{
if (interestingHeaders.IndexOfKey(header) == -1)
{
interestingHeaders.Add(header, "");
}
}
}
// Finally, add all the interesting headers (i.e.: all that startwith x-amz- ;-))
foreach (string header in interestingHeaders.Keys)
{
if (header.StartsWith(AMAZON_HEADER_PREFIX))
{
buf.Append(header).Append(":").Append((interestingHeaders[header] as string).Trim());
}
else
{
buf.Append(interestingHeaders[header]);
}
buf.Append("\n");
}
// Build the path using the bucket and key
buf.Append("/");
if (bucketName != null && !bucketName.Equals(""))
{
buf.Append(bucketName);
buf.Append("/");
}
// Append the key (it may be an empty string)
if (key != null && key.Length != 0)
{
buf.Append(key);
}
// if there is an acl, logging, or torrent parameter, add them to the string.
if (queryParams != null)
{
if (queryParams.IndexOfKey("acl") != -1)
{
buf.Append("?acl");
}
else if (queryParams.IndexOfKey("torrent") != -1)
{
buf.Append("?torrent");
}
else if (queryParams.IndexOfKey("logging") != -1)
{
buf.Append("?logging");
}
}
return buf.ToString();
}
public static string MakeCanonicalString(string verb, string bucketName, string key, SortedList queryParams, SortedList headers, string expires)
{
StringBuilder buf = new StringBuilder();
buf.Append(verb);
buf.Append("\n");
ThreeSharpStringComparer comparer = new ThreeSharpStringComparer(CompareInfo.GetCompareInfo(""), CompareOptions.StringSort);
SortedList interestingHeaders = new SortedList(comparer);
if (headers != null)
{
foreach (string header in headers.Keys)
{
string lk = header.ToLower();
if (lk.Equals("content-type") ||
lk.Equals("content-md5") ||
lk.Equals("date") ||
lk.StartsWith(AMAZON_HEADER_PREFIX))
{
interestingHeaders.Add(lk, headers[header]);
}
}
}
if (interestingHeaders[ALTERNATIVE_DATE_HEADER] != null)
{
interestingHeaders.Add("date", "");
}
// if the expires is non-null, use that for the date field. this
// trumps the x-amz-date behavior.
if (expires != null)
{
interestingHeaders.Add("date", expires);
}
// these headers require that we still put a new line after them,
// even if they don't exist.
{
string[] newlineHeaders = { "content-type", "content-md5" };
foreach (string header in newlineHeaders)
{
if (interestingHeaders.IndexOfKey(header) == -1)
{
interestingHeaders.Add(header, "");
}
}
}
// Finally, add all the interesting headers (i.e.: all that startwith x-amz- ;-))
foreach (string header in interestingHeaders.Keys)
{
if (header.StartsWith(AMAZON_HEADER_PREFIX))
{
buf.Append(header).Append(":").Append((interestingHeaders[header] as string).Trim());
}
else
{
buf.Append(interestingHeaders[header]);
}
buf.Append("\n");
}
// Build the path using the bucket and key
buf.Append("/");
if (bucketName != null && !bucketName.Equals(""))
{
buf.Append(bucketName);
buf.Append("/");
}
// Append the key (it may be an empty string)
if (key != null && key.Length != 0)
{
buf.Append(key);
}
// if there is an acl, logging, or torrent parameter, add them to the string.
if (queryParams != null)
{
if (queryParams.IndexOfKey("acl") != -1)
{
buf.Append("?acl");
}
else if (queryParams.IndexOfKey("torrent") != -1)
{
buf.Append("?torrent");
}
else if (queryParams.IndexOfKey("logging") != -1)
{
buf.Append("?logging");
}
}
return(buf.ToString());
}
