Index: components/certificate_transparency/log_proof_fetcher.cc |
diff --git a/components/certificate_transparency/log_proof_fetcher.cc b/components/certificate_transparency/log_proof_fetcher.cc |
index 7e51858708b0acb5d60dbd550cba646ff6ac5ab6..b4016c04210928fc96efac70595272801b25d1c1 100644 |
--- a/components/certificate_transparency/log_proof_fetcher.cc |
+++ b/components/certificate_transparency/log_proof_fetcher.cc |
@@ -9,6 +9,7 @@ |
#include "base/logging.h" |
#include "base/memory/ref_counted.h" |
#include "base/stl_util.h" |
+#include "base/strings/stringprintf.h" |
#include "base/values.h" |
#include "components/safe_json/safe_json_parser.h" |
#include "net/base/io_buffer.h" |
@@ -40,16 +41,22 @@ int GetNetErrorFromURLRequestStatus(const net::URLRequestStatus& status) { |
} |
} |
+enum LogRequestType { SIGNED_TREE_HEAD, CONSISTENCY_PROOF }; |
+ |
} // namespace |
struct LogProofFetcher::FetchState { |
FetchState(const std::string& log_id, |
- const SignedTreeHeadFetchedCallback& fetched_callback, |
+ LogRequestType request_type, |
+ SignedTreeHeadFetchedCallback sth_fetch_callback, |
+ ConsistencyProofFetchedCallback proof_fetch_callback, |
svaldez
2015/11/16 17:33:07
const ...FetchedCallback&
Eran Messeri
2015/11/17 10:47:31
Done.
|
const FetchFailedCallback& failed_callback); |
~FetchState(); |
std::string log_id; |
- SignedTreeHeadFetchedCallback fetched_callback; |
+ LogRequestType request_type; |
+ SignedTreeHeadFetchedCallback sth_fetch_callback; |
+ ConsistencyProofFetchedCallback proof_fetch_callback; |
FetchFailedCallback failed_callback; |
scoped_refptr<net::IOBufferWithSize> response_buffer; |
std::string assembled_response; |
@@ -57,12 +64,18 @@ struct LogProofFetcher::FetchState { |
LogProofFetcher::FetchState::FetchState( |
const std::string& log_id, |
- const SignedTreeHeadFetchedCallback& fetched_callback, |
+ LogRequestType request_type, |
+ SignedTreeHeadFetchedCallback sth_fetch_callback, |
+ ConsistencyProofFetchedCallback proof_fetch_callback, |
const FetchFailedCallback& failed_callback) |
: log_id(log_id), |
- fetched_callback(fetched_callback), |
+ request_type(request_type), |
+ sth_fetch_callback(sth_fetch_callback), |
+ proof_fetch_callback(proof_fetch_callback), |
failed_callback(failed_callback), |
- response_buffer(new net::IOBufferWithSize(kMaxLogResponseSizeInBytes)) {} |
+ response_buffer(new net::IOBufferWithSize(kMaxLogResponseSizeInBytes)) { |
+ DCHECK(!(sth_fetch_callback.is_null() && proof_fetch_callback.is_null())); |
+} |
LogProofFetcher::FetchState::~FetchState() {} |
@@ -83,16 +96,36 @@ void LogProofFetcher::FetchSignedTreeHead( |
const FetchFailedCallback& failed_callback) { |
DCHECK(base_log_url.SchemeIsHTTPOrHTTPS()); |
GURL fetch_url(base_log_url.Resolve("ct/v1/get-sth")); |
- scoped_ptr<net::URLRequest> request = |
- request_context_->CreateRequest(fetch_url, net::DEFAULT_PRIORITY, this); |
- request->SetLoadFlags(net::LOAD_DO_NOT_SEND_COOKIES | |
- net::LOAD_DO_NOT_SAVE_COOKIES | |
- net::LOAD_DO_NOT_SEND_AUTH_DATA); |
+ net::URLRequest* request = CreateRequest(fetch_url); |
FetchState* fetch_state = |
- new FetchState(log_id, fetched_callback, failed_callback); |
+ new FetchState(log_id, LogRequestType::SIGNED_TREE_HEAD, fetched_callback, |
+ ConsistencyProofFetchedCallback(), failed_callback); |
svaldez
2015/11/16 17:33:07
Might be able to just pass 'nullptr'?
Eran Messeri
2015/11/17 10:47:31
Can't - Callback doesn't have a single argument c'
|
request->Start(); |
- inflight_requests_.insert(std::make_pair(request.release(), fetch_state)); |
+ inflight_requests_.insert(std::make_pair(request, fetch_state)); |
+} |
+ |
+void LogProofFetcher::FetchConsistencyProof( |
+ const GURL& base_log_url, |
+ const std::string& log_id, |
+ size_t old_tree_size, |
+ size_t new_tree_size, |
+ const ConsistencyProofFetchedCallback& fetched_callback, |
+ const FetchFailedCallback& failed_callback) { |
+ DCHECK(base_log_url.SchemeIsHTTPOrHTTPS()); |
+ |
+ std::string relative = |
+ base::StringPrintf("ct/v1/get-sth-consistency?first=%lu&second=%lu", |
+ old_tree_size, new_tree_size); |
+ GURL fetch_url = base_log_url.Resolve(relative); |
+ |
+ net::URLRequest* request = CreateRequest(fetch_url); |
+ |
+ FetchState* fetch_state = new FetchState( |
+ log_id, LogRequestType::CONSISTENCY_PROOF, |
+ SignedTreeHeadFetchedCallback(), fetched_callback, failed_callback); |
svaldez
2015/11/16 17:33:07
ditto.
Eran Messeri
2015/11/17 10:47:31
See comment above.
|
+ request->Start(); |
+ inflight_requests_.insert(std::make_pair(request, fetch_state)); |
} |
void LogProofFetcher::OnResponseStarted(net::URLRequest* request) { |
@@ -185,12 +218,23 @@ void LogProofFetcher::RequestComplete(net::URLRequest* request) { |
// Get rid of the buffer as it really isn't necessary. |
fetch_state->response_buffer = nullptr; |
- safe_json::SafeJsonParser::Parse( |
- fetch_state->assembled_response, |
- base::Bind(&LogProofFetcher::OnSTHJsonParseSuccess, |
- weak_factory_.GetWeakPtr(), request), |
- base::Bind(&LogProofFetcher::OnSTHJsonParseError, |
- weak_factory_.GetWeakPtr(), request)); |
+ if (fetch_state->request_type == LogRequestType::SIGNED_TREE_HEAD) { |
+ safe_json::SafeJsonParser::Parse( |
+ fetch_state->assembled_response, |
+ base::Bind(&LogProofFetcher::OnSTHJsonParseSuccess, |
+ weak_factory_.GetWeakPtr(), request), |
+ base::Bind(&LogProofFetcher::OnSTHJsonParseError, |
+ weak_factory_.GetWeakPtr(), request)); |
+ } else if (fetch_state->request_type == LogRequestType::CONSISTENCY_PROOF) { |
+ safe_json::SafeJsonParser::Parse( |
+ fetch_state->assembled_response, |
+ base::Bind(&LogProofFetcher::OnConsistencyProofJsonParseSuccess, |
+ weak_factory_.GetWeakPtr(), request), |
+ base::Bind(&LogProofFetcher::OnConsistencyProofJsonParseError, |
+ weak_factory_.GetWeakPtr(), request)); |
+ } else { |
+ NOTREACHED(); |
+ } |
} |
void LogProofFetcher::CleanupRequest(net::URLRequest* request) { |
@@ -225,7 +269,8 @@ void LogProofFetcher::OnSTHJsonParseSuccess( |
FetchState* fetch_state = inflight_requests_.find(request)->second; |
net::ct::SignedTreeHead signed_tree_head; |
if (net::ct::FillSignedTreeHead(*parsed_json.get(), &signed_tree_head)) { |
- fetch_state->fetched_callback.Run(fetch_state->log_id, signed_tree_head); |
+ DCHECK(!(fetch_state->sth_fetch_callback.is_null())); |
+ fetch_state->sth_fetch_callback.Run(fetch_state->log_id, signed_tree_head); |
} else { |
fetch_state->failed_callback.Run(fetch_state->log_id, |
net::ERR_CT_STH_INCOMPLETE, net::HTTP_OK); |
@@ -239,4 +284,39 @@ void LogProofFetcher::OnSTHJsonParseError(net::URLRequest* request, |
InvokeFailureCallback(request, net::ERR_CT_STH_PARSING_FAILED, net::HTTP_OK); |
} |
+void LogProofFetcher::OnConsistencyProofJsonParseSuccess( |
+ net::URLRequest* request, |
+ scoped_ptr<base::Value> parsed_json) { |
+ DCHECK(inflight_requests_.count(request)); |
+ FetchState* fetch_state = inflight_requests_.find(request)->second; |
+ std::vector<std::string> consistency_proof; |
+ if (net::ct::FillConsistencyProof(*parsed_json.get(), &consistency_proof)) { |
+ DCHECK(!(fetch_state->proof_fetch_callback.is_null())); |
+ fetch_state->proof_fetch_callback.Run(fetch_state->log_id, |
+ consistency_proof); |
+ } else { |
+ fetch_state->failed_callback.Run( |
+ fetch_state->log_id, net::ERR_CT_CONSISTENCY_PROOF_PARSING_FAILED, |
+ net::HTTP_OK); |
+ } |
+ |
+ CleanupRequest(request); |
+} |
+ |
+void LogProofFetcher::OnConsistencyProofJsonParseError( |
+ net::URLRequest* request, |
+ const std::string& error) { |
+ InvokeFailureCallback(request, net::ERR_CT_CONSISTENCY_PROOF_PARSING_FAILED, |
+ net::HTTP_OK); |
+} |
+ |
+net::URLRequest* LogProofFetcher::CreateRequest(const GURL& url) { |
+ scoped_ptr<net::URLRequest> request = |
+ request_context_->CreateRequest(url, net::DEFAULT_PRIORITY, this); |
+ request->SetLoadFlags(net::LOAD_DO_NOT_SEND_COOKIES | |
+ net::LOAD_DO_NOT_SAVE_COOKIES | |
+ net::LOAD_DO_NOT_SEND_AUTH_DATA); |
+ return request.release(); |
+} |
+ |
} // namespace certificate_transparency |