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#include <mbgl/util/mapbox.hpp>
#include <mbgl/util/constants.hpp>
#include <mbgl/util/logging.hpp>
#include <stdexcept>
#include <vector>
#include <iostream>
namespace {
const char* protocol = "mapbox://";
const std::size_t protocolLength = 9;
} // namespace
namespace mbgl {
namespace util {
namespace mapbox {
bool isMapboxURL(const std::string& url) {
return url.compare(0, protocolLength, protocol) == 0;
}
static std::vector<std::string> getMapboxURLPathname(const std::string& url) {
std::vector<std::string> pathname;
auto startIndex = protocolLength;
auto end = url.find_first_of("?#");
if (end == std::string::npos) {
end = url.length();
}
while (startIndex < end) {
auto endIndex = url.find("/", startIndex);
if (endIndex == std::string::npos) {
endIndex = end;
}
pathname.push_back(url.substr(startIndex, endIndex - startIndex));
startIndex = endIndex + 1;
}
return pathname;
}
static std::pair<std::string, std::size_t> normalizeQuery(const std::string& url) {
std::string query;
auto queryIdx = url.find("?");
if (queryIdx != std::string::npos) {
query = url.substr(queryIdx + 1, url.length() - queryIdx + 1);
if (!query.empty()) {
query = "&" + query;
}
}
return std::make_pair(query, queryIdx);
}
std::string normalizeSourceURL(const std::string& baseURL, const std::string& url, const std::string& accessToken) {
if (!isMapboxURL(url)) {
return url;
}
if (accessToken.empty()) {
throw std::runtime_error("You must provide a Mapbox API access token for Mapbox tile sources");
}
auto query = normalizeQuery(url);
return baseURL + "/v4/" + url.substr(protocolLength, query.second - protocolLength) + ".json?access_token=" + accessToken + "&secure" + query.first;
}
std::string normalizeStyleURL(const std::string& baseURL, const std::string& url, const std::string& accessToken) {
if (!isMapboxURL(url)) {
return url;
}
const auto pathname = getMapboxURLPathname(url);
if (pathname.size() < 3) {
Log::Error(Event::ParseStyle, "Invalid style URL");
return url;
}
const auto& user = pathname[1];
const auto& id = pathname[2];
const bool isDraft = pathname.size() > 3;
return baseURL + "/styles/v1/" + user + "/" + id + (isDraft ? "/draft" : "") + "?access_token=" + accessToken + normalizeQuery(url).first;
}
std::string normalizeSpriteURL(const std::string& baseURL, const std::string& url, const std::string& accessToken) {
if (!isMapboxURL(url)) {
return url;
}
const auto pathname = getMapboxURLPathname(url);
if (pathname.size() < 3) {
Log::Error(Event::ParseStyle, "Invalid sprite URL");
return url;
}
const auto& user = pathname[1];
const bool isDraft = pathname.size() > 3;
const auto& name = isDraft ? pathname[3] : pathname[2];
const size_t index = name.find_first_of("@.");
if (index == std::string::npos) {
Log::Error(Event::ParseStyle, "Invalid sprite URL");
return url;
}
const auto& extension = name.substr(index);
if (isDraft) {
const auto& id = pathname[2];
return baseURL + "/styles/v1/" + user + "/" + id + "/draft/sprite" + extension +
"?access_token=" + accessToken;
} else {
const auto& id = pathname[2].substr(0, index);
return baseURL + "/styles/v1/" + user + "/" + id + "/sprite" + extension + "?access_token=" +
accessToken;
}
}
std::string normalizeGlyphsURL(const std::string& baseURL, const std::string& url, const std::string& accessToken) {
if (!isMapboxURL(url)) {
return url;
}
const auto pathname = getMapboxURLPathname(url);
if (pathname.size() < 4) {
Log::Error(Event::ParseStyle, "Invalid glyph URL");
return url;
}
const auto& user = pathname[1];
const auto& fontstack = pathname[2];
const auto& range = pathname[3];
return baseURL + "/fonts/v1/" + user + "/" + fontstack + "/" + range + "?access_token=" + accessToken;
}
std::string normalizeTileURL(const std::string& baseURL, const std::string& url, const std::string& accessToken) {
if (!isMapboxURL(url)) {
return url;
}
auto query = normalizeQuery(url);
return baseURL + "/v4/" + url.substr(sizeof("mapbox://tiles/") - 1, query.second - sizeof("mapbox://tiles/") + 1) + "?access_token=" + accessToken + normalizeQuery(url).first;
}
std::string canonicalizeTileURL(const std::string& url, SourceType type, uint16_t tileSize) {
auto tilesetStartIdx = url.find("/v4/");
if (tilesetStartIdx == std::string::npos) {
return url;
}
tilesetStartIdx += sizeof("/v4/") - 1;
const auto tilesetEndIdx = url.find("/", tilesetStartIdx);
if (tilesetEndIdx == std::string::npos) {
return url;
}
auto queryIdx = url.rfind("?");
if (queryIdx == std::string::npos) {
queryIdx = url.length();
}
auto basenameIdx = url.rfind("/", queryIdx);
if (basenameIdx == std::string::npos || basenameIdx == queryIdx - 1) {
basenameIdx = url.length();
} else {
basenameIdx += 1;
}
const auto extensionIdx = url.find(".", basenameIdx);
if (extensionIdx == std::string::npos || extensionIdx == queryIdx - 1) {
return url;
}
const auto tileset = url.substr(tilesetStartIdx, tilesetEndIdx - tilesetStartIdx);
auto extension = url.substr(extensionIdx + 1, queryIdx - extensionIdx - 1);
#if !defined(__ANDROID__) && !defined(__APPLE__) && !defined(QT_IMAGE_DECODERS)
// Replace PNG with WebP.
if (extension == "png") {
extension = "webp";
}
#endif // !defined(__ANDROID__) && !defined(__APPLE__) && !defined(QT_IMAGE_DECODERS)
std::string result = "mapbox://tiles/" + tileset + "/{z}/{x}/{y}";
if (type == SourceType::Raster) {
result += tileSize == util::tileSize ? "@2x" : "{ratio}";
}
result += "." + extension;
// get the query and remove access_token, if more parameters exist, add them to the final result
if (queryIdx != url.length()) {
auto idx = queryIdx;
bool hasQuery = false;
while (idx != std::string::npos) {
idx++; // skip & or ?
auto ampersandIdx = url.find("&", idx);
if (url.substr(idx, 13) != "access_token=") {
result += hasQuery ? "&" : "?";
result += url.substr(idx, ampersandIdx != std::string::npos ? ampersandIdx - idx
: std::string::npos);
hasQuery = true;
}
idx = ampersandIdx;
}
}
return result;
}
const uint64_t DEFAULT_OFFLINE_TILE_COUNT_LIMIT = 6000;
} // end namespace mapbox
} // end namespace util
} // end namespace mbgl
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