68 lines
2.1 KiB
C++
68 lines
2.1 KiB
C++
#include <mbgl/util/mapbox.hpp>
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#include <stdexcept>
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namespace mbgl {
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namespace util {
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namespace mapbox {
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const std::string mapbox = "mapbox://";
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std::string normalizeURL(const std::string& url, const std::string& accessToken) {
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if (accessToken.empty())
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throw std::runtime_error("You must provide a Mapbox API access token for Mapbox tile sources");
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return std::string("https://api.tiles.mapbox.com/v4/")
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+ url.substr(mapbox.length())
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+ "?access_token="
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+ accessToken;
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}
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std::string normalizeSourceURL(const std::string& url, const std::string& accessToken) {
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if (url.compare(0, mapbox.length(), mapbox) != 0)
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return url;
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std::string result = normalizeURL(url + ".json", accessToken);
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// TileJSON requests need a secure flag appended to their URLs so
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// that the server knows to send SSL-ified resource references.
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if (url.compare(0, 5, "https") == 0)
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result += "&secure";
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return result;
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}
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std::string normalizeGlyphsURL(const std::string& url, const std::string& accessToken) {
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if (url.compare(0, mapbox.length(), mapbox) != 0)
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return url;
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return normalizeURL(url, accessToken);
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}
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std::string normalizeTileURL(const std::string& url, const std::string& sourceURL) {
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if (sourceURL.empty() || sourceURL.compare(0, mapbox.length(), mapbox) != 0)
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return url;
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std::string::size_type queryIdx = url.rfind("?");
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// Trim off the right end but never touch anything before the extension dot.
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std::string urlSansParams((queryIdx == std::string::npos) ? url : url.substr(0, queryIdx));
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while (!urlSansParams.empty() && isdigit(urlSansParams.back()))
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urlSansParams.pop_back();
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std::string::size_type extensionIdx = urlSansParams.length() - 4;
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if (extensionIdx <= 0)
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return url;
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std::string extension = urlSansParams.substr(extensionIdx);
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if (extension.compare(".png") != 0 && extension.compare(".jpg") != 0)
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return url;
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std::string normalizedURL(url);
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normalizedURL.insert(extensionIdx, "{ratio}");
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return normalizedURL;
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}
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}
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}
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}
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