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#include <mbgl/util/mapbox.hpp>
#include <stdexcept>
namespace mbgl {
namespace util {
namespace mapbox {
const std::string mapbox = "mapbox://";
std::string normalizeURL(const std::string& url, const std::string& accessToken) {
if (accessToken.empty())
throw std::runtime_error("You must provide a Mapbox API access token for Mapbox tile sources");
return std::string("https://api.tiles.mapbox.com/v4/")
+ url.substr(mapbox.length())
+ "?access_token="
+ accessToken;
}
std::string normalizeSourceURL(const std::string& url, const std::string& accessToken) {
if (url.compare(0, mapbox.length(), mapbox) != 0)
return url;
std::string result = normalizeURL(url + ".json", accessToken);
// TileJSON requests need a secure flag appended to their URLs so
// that the server knows to send SSL-ified resource references.
if (url.compare(0, 5, "https") == 0)
result += "&secure";
return result;
}
std::string normalizeGlyphsURL(const std::string& url, const std::string& accessToken) {
if (url.compare(0, mapbox.length(), mapbox) != 0)
return url;
return normalizeURL(url, accessToken);
}
std::string normalizeTileURL(const std::string& url, const std::string& sourceURL, SourceType sourceType) {
if (sourceURL.empty() || sourceURL.compare(0, mapbox.length(), mapbox) != 0 ||
sourceType != SourceType::Raster) {
return url;
}
std::string::size_type queryIdx = url.rfind("?");
// Trim off the right end but never touch anything before the extension dot.
std::string urlSansParams((queryIdx == std::string::npos) ? url : url.substr(0, queryIdx));
while (!urlSansParams.empty() && isdigit(urlSansParams.back())) {
urlSansParams.pop_back();
}
std::string::size_type basenameIdx = url.rfind("/", queryIdx);
std::string::size_type extensionIdx = url.rfind(".", queryIdx);
if (basenameIdx == std::string::npos || extensionIdx == std::string::npos ||
basenameIdx > extensionIdx) {
// No file extension: probably not a file name we can tack a ratio onto.
return url;
}
std::string normalizedURL(url);
normalizedURL.insert(extensionIdx, "{ratio}");
return normalizedURL;
}
}
}
}
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