| // Copyright 2014 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "extensions/common/permissions/permission_message_util.h" |
| |
| #include "base/strings/string_number_conversions.h" |
| #include "base/strings/utf_string_conversions.h" |
| #include "extensions/common/permissions/permission_message.h" |
| #include "extensions/common/permissions/permission_set.h" |
| #include "extensions/common/url_pattern_set.h" |
| #include "grit/extensions_strings.h" |
| #include "net/base/registry_controlled_domains/registry_controlled_domain.h" |
| #include "ui/base/l10n/l10n_util.h" |
| #include "url/url_constants.h" |
| |
| using extensions::PermissionMessage; |
| using extensions::PermissionSet; |
| using extensions::URLPatternSet; |
| |
| namespace { |
| |
| // Helper for GetDistinctHosts(): com > net > org > everything else. |
| bool RcdBetterThan(const std::string& a, const std::string& b) { |
| if (a == b) |
| return false; |
| if (a == "com") |
| return true; |
| if (a == "net") |
| return b != "com"; |
| if (a == "org") |
| return b != "com" && b != "net"; |
| return false; |
| } |
| |
| } // namespace |
| |
| namespace permission_message_util { |
| |
| PermissionMessage CreateFromHostList(const std::set<std::string>& hosts) { |
| typedef std::pair<PermissionMessage::ID, int> MsgPair; |
| const MsgPair kMessagesList[] = { |
| std::make_pair(PermissionMessage::kHosts1, |
| IDS_EXTENSION_PROMPT_WARNING_1_HOST), |
| std::make_pair(PermissionMessage::kHosts2, |
| IDS_EXTENSION_PROMPT_WARNING_2_HOSTS), |
| std::make_pair(PermissionMessage::kHosts3, |
| IDS_EXTENSION_PROMPT_WARNING_3_HOSTS), |
| std::make_pair(PermissionMessage::kHosts4OrMore, |
| IDS_EXTENSION_PROMPT_WARNING_HOSTS_LIST)}; |
| |
| int host_msg_id = hosts.size() < arraysize(kMessagesList) |
| ? IDS_EXTENSION_PROMPT_WARNING_HOST_AND_SUBDOMAIN |
| : IDS_EXTENSION_PROMPT_WARNING_HOST_AND_SUBDOMAIN_LIST; |
| std::vector<base::string16> host_list; |
| for (std::set<std::string>::const_iterator it = hosts.begin(); |
| it != hosts.end(); |
| ++it) { |
| std::string host = *it; |
| host_list.push_back( |
| host[0] == '*' && host[1] == '.' |
| ? l10n_util::GetStringFUTF16(host_msg_id, |
| base::UTF8ToUTF16(host.erase(0, 2))) |
| : base::UTF8ToUTF16(host)); |
| } |
| DCHECK(host_list.size()); |
| |
| if (host_list.size() < arraysize(kMessagesList)) { |
| return PermissionMessage( |
| kMessagesList[host_list.size() - 1].first, |
| l10n_util::GetStringFUTF16( |
| kMessagesList[host_list.size() - 1].second, host_list, NULL)); |
| } |
| |
| base::string16 details; |
| for (size_t i = 0; i < host_list.size(); ++i) { |
| if (i > 0) |
| details += base::ASCIIToUTF16("\n"); |
| details += l10n_util::GetStringFUTF16( |
| IDS_EXTENSION_PROMPT_WARNING_HOST_LIST_ENTRY, host_list[i]); |
| } |
| return PermissionMessage( |
| kMessagesList[arraysize(kMessagesList) - 1].first, |
| l10n_util::GetStringUTF16( |
| kMessagesList[arraysize(kMessagesList) - 1].second), |
| details); |
| } |
| |
| std::set<std::string> GetDistinctHosts(const URLPatternSet& host_patterns, |
| bool include_rcd, |
| bool exclude_file_scheme) { |
| // Use a vector to preserve order (also faster than a map on small sets). |
| // Each item is a host split into two parts: host without RCDs and |
| // current best RCD. |
| typedef std::vector<std::pair<std::string, std::string> > HostVector; |
| HostVector hosts_best_rcd; |
| for (URLPatternSet::const_iterator i = host_patterns.begin(); |
| i != host_patterns.end(); |
| ++i) { |
| if (exclude_file_scheme && i->scheme() == url::kFileScheme) |
| continue; |
| |
| std::string host = i->host(); |
| |
| // Add the subdomain wildcard back to the host, if necessary. |
| if (i->match_subdomains()) |
| host = "*." + host; |
| |
| // If the host has an RCD, split it off so we can detect duplicates. |
| std::string rcd; |
| size_t reg_len = net::registry_controlled_domains::GetRegistryLength( |
| host, |
| net::registry_controlled_domains::EXCLUDE_UNKNOWN_REGISTRIES, |
| net::registry_controlled_domains::EXCLUDE_PRIVATE_REGISTRIES); |
| if (reg_len && reg_len != std::string::npos) { |
| if (include_rcd) // else leave rcd empty |
| rcd = host.substr(host.size() - reg_len); |
| host = host.substr(0, host.size() - reg_len); |
| } |
| |
| // Check if we've already seen this host. |
| HostVector::iterator it = hosts_best_rcd.begin(); |
| for (; it != hosts_best_rcd.end(); ++it) { |
| if (it->first == host) |
| break; |
| } |
| // If this host was found, replace the RCD if this one is better. |
| if (it != hosts_best_rcd.end()) { |
| if (include_rcd && RcdBetterThan(rcd, it->second)) |
| it->second = rcd; |
| } else { // Previously unseen host, append it. |
| hosts_best_rcd.push_back(std::make_pair(host, rcd)); |
| } |
| } |
| |
| // Build up the final vector by concatenating hosts and RCDs. |
| std::set<std::string> distinct_hosts; |
| for (HostVector::iterator it = hosts_best_rcd.begin(); |
| it != hosts_best_rcd.end(); |
| ++it) |
| distinct_hosts.insert(it->first + it->second); |
| return distinct_hosts; |
| } |
| |
| } // namespace permission_message_util |