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#include <mbgl/util/mapbox.hpp>
#include <stdexcept>
#include <vector>
namespace mbgl {
namespace util {
namespace mapbox {
const std::string protocol = "mapbox://";
const std::string baseURL = "https://api.mapbox.com/";
bool isMapboxURL(const std::string& url) {
return url.compare(0, protocol.length(), protocol) == 0;
}
std::vector<std::string> getMapboxURLPathname(const std::string& url) {
std::vector<std::string> pathname;
std::size_t startIndex = protocol.length();
while (startIndex < url.length()) {
std::size_t endIndex = url.find("/", startIndex);
if (endIndex == std::string::npos) endIndex = url.length();
pathname.push_back(url.substr(startIndex, endIndex - startIndex));
startIndex = endIndex + 1;
}
return pathname;
}
std::string normalizeSourceURL(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");
}
return baseURL + "v4/" + url.substr(protocol.length()) + ".json?access_token=" + accessToken + "&secure";
}
std::string normalizeStyleURL(const std::string& url, const std::string& accessToken) {
if (!isMapboxURL(url)) {
return url;
}
std::vector<std::string> pathname = getMapboxURLPathname(url);
std::string user = pathname[1];
std::string id = pathname[2];
bool isDraft = pathname.size() > 3;
return baseURL + "styles/v1/" + user + "/" + id + (isDraft ? "/draft" : "") + "?access_token=" + accessToken;
}
std::string normalizeSpriteURL(const std::string& url, const std::string& accessToken) {
if (!isMapboxURL(url)) {
return url;
}
std::vector<std::string> pathname = getMapboxURLPathname(url);
std::string user = pathname[1];
bool isDraft = pathname.size() > 3;
std::string id, extension;
if (isDraft) {
size_t index = pathname[3].find_first_of("@.");
id = pathname[2];
extension = pathname[3].substr(index);
} else {
size_t index = pathname[2].find_first_of("@.");
id = pathname[2].substr(0, index);
extension = pathname[2].substr(index);
}
return baseURL + "styles/v1/" + user + "/" + id + "/" + (isDraft ? "draft/" : "") + "sprite" + extension + "?access_token=" + accessToken;
}
std::string normalizeGlyphsURL(const std::string& url, const std::string& accessToken) {
if (!isMapboxURL(url)) {
return url;
}
std::vector<std::string> pathname = getMapboxURLPathname(url);
std::string user = pathname[1];
return baseURL + "fonts/v1/" + user + "/{fontstack}/{range}.pbf?access_token=" + accessToken;
}
std::string normalizeTileURL(const std::string& url, const std::string& sourceURL, SourceType sourceType) {
if (sourceURL.empty() || !isMapboxURL(sourceURL) || 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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