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GeezerVison is showing github.com — wsjcpp-docker-api/src/wsjcpp_docker_api.cpp at master · wsjcpp/wsjcpp-docker-api

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#include "wsjcpp_docker_api.h"
#include <wsjcpp_core.h>
#include <curl/curl.h>
#include <json.hpp>
// ---------------------------------------------------------------------
// WsjcppDockerImage
WsjcppDockerImage::WsjcppDockerImage() {
TAG = "WsjcppDockerImage";
m_sId = "";
m_sParentId = "";
m_nCreated = 0;
m_nSharedSize = 0;
m_nSize = 0;
m_nVirtualSize = 0;
}
// ---------------------------------------------------------------------
bool WsjcppDockerImage::fillFromJson(const nlohmann::json &jsonResponse) {
m_jsonOriginal = jsonResponse;
auto it = jsonResponse.begin();
for (; it != jsonResponse.end(); ++it) {
std::string sKey = it.key();
if (sKey == "ParentId") {
m_sParentId = it.value();
} else if (sKey == "Id") {
m_sId = it.value();
} else if (sKey == "Containers") {
m_nContainers = it.value();
} else if (sKey == "SharedSize") {
m_nSharedSize = it.value();
} else if (sKey == "VirtualSize") {
m_nVirtualSize = it.value();
} else if (sKey == "Size") {
m_nSize = it.value();
} else if (sKey == "Created") {
m_nCreated = it.value();
} else if (sKey == "RepoTags") {
m_vRepoTags.clear();
nlohmann::json arr = it.value();
for (int i = 0; i < arr.size(); i++) {
std::string sTag = arr.at(i);
m_vRepoTags.push_back(sTag);
}
} else if (sKey == "RepoDigests") {
m_vRepoDigests.clear();
nlohmann::json arr = it.value();
for (int i = 0; i < arr.size(); i++) {
std::string sDigest = arr.at(i);
m_vRepoDigests.push_back(sDigest);
}
} else if (sKey == "Labels") {
nlohmann::json val = it.value();
if (!val.is_null()) {
auto it2 = val.begin();
for (; it2 != val.end(); ++it2) {
std::string sKey2 = it2.key();
std::string sValue2 = it2.value();
m_mapLabels[sKey2] = sValue2;
}
}
} else {
WsjcppLog::warn(TAG, "Ignored key images: " + sKey);
std::cout << it.key() << " | " << it.value() << "\n";
}
}
return true;
}
// ---------------------------------------------------------------------
nlohmann::json WsjcppDockerImage::getJsonOriginal() {
return m_jsonOriginal;
}
// ---------------------------------------------------------------------
std::string WsjcppDockerImage::getId() {
return m_sId;
}
// ---------------------------------------------------------------------
std::string WsjcppDockerImage::getParentId() {
return m_sParentId;
}
// ---------------------------------------------------------------------
long WsjcppDockerImage::getCreated() {
return m_nCreated;
}
// ---------------------------------------------------------------------
std::map<std::string, std::string> WsjcppDockerImage::getLabels() {
return m_mapLabels;
}
// ---------------------------------------------------------------------
std::vector<std::string> WsjcppDockerImage::getRepoDigests() {
return m_vRepoDigests;
}
// ---------------------------------------------------------------------
std::vector<std::string> WsjcppDockerImage::getRepoTags() {
return m_vRepoTags;
}
// ---------------------------------------------------------------------
long WsjcppDockerImage::getSharedSize() {
return m_nSharedSize;
}
// ---------------------------------------------------------------------
long WsjcppDockerImage::getSize() {
return m_nSize;
}
// ---------------------------------------------------------------------
long WsjcppDockerImage::getVirtualSize() {
return m_nVirtualSize;
}
// ---------------------------------------------------------------------
long WsjcppDockerImage::getContainers() {
return m_nContainers;
}
// ---------------------------------------------------------------------
// WsjcppDockerApi
WsjcppDockerApi::WsjcppDockerApi() {
m_sApiVersionPrefix = "/v1.40/";
m_bConneted = false;
TAG = "WsjcppDockerApi(" + m_sApiVersionPrefix + ")";
}
// ---------------------------------------------------------------------
std::string WsjcppDockerApi::getDefaultUnixSocketPath() {
return "/var/run/docker.sock";
}
// ---------------------------------------------------------------------
bool WsjcppDockerApi::isConnected() {
return m_bConneted;
}
// ---------------------------------------------------------------------
bool WsjcppDockerApi::doConnectUnixSocketPath(const std::string &sDockerUnixSocketPath) {
m_sDockerUnixSocketPath = sDockerUnixSocketPath;
std::string sResponse;
if (!requestGet(makeUrl("/containers/json?all=0"), sResponse)) {
m_bConneted = false;
} else {
m_bConneted = true;
}
return m_bConneted;
}
// ---------------------------------------------------------------------
/*
bool WsjcppDockerApi::getContainers(std::vector<WsjcppDockerContainer> &vContainers, std::string &sError) {
if (!m_bConneted) {
sError = "Not connected";
return false;
}
// TODO curl with request get
// GET /containers/json
return true;
}
*/
// ---------------------------------------------------------------------
bool WsjcppDockerApi::getImages(std::vector<WsjcppDockerImage> &vImages, std::string &sError) {
if (!m_bConneted) {
sError = "Not connected";
return false;
}
std::string sResponse = "";
if (!requestGet(makeUrl("/images/json?all=0"), sResponse)) {
sError = "Something wrong";
return false;
}
// WsjcppLog::info(TAG, "sResponse = " + sResponse);
nlohmann::json jsonResponse = nlohmann::json::parse(sResponse);
int nSize = jsonResponse.size();
for (int i = 0; i < nSize; i++) {
nlohmann::json jsonImage = jsonResponse.at(i);
// WsjcppLog::info(TAG, "image = " + jsonImage.dump(4));
WsjcppDockerImage image;
image.fillFromJson(jsonImage);
vImages.push_back(image);
}
return true;
}
// ---------------------------------------------------------------------
static size_t WsjcppDockerApi_CurlWrite_CallbackFunc_DataToStr(void *contents, size_t size, size_t nmemb, void *userp) {
((std::string*)userp)->append((char*)contents, size * nmemb);
return size * nmemb;
}
// ---------------------------------------------------------------------
std::string WsjcppDockerApi::makeUrl(const std::string & sPath) {
return "http://localhost/" + m_sApiVersionPrefix + sPath;
}
// ---------------------------------------------------------------------
bool WsjcppDockerApi::requestGet(const std::string &sURL, std::string &sResponse) {
WsjcppLog::info(TAG, "sURL: '" + sURL + "'");
std::string sUserAgent = "wsjcpp-docker-api/?";
std::string readBuffer;
CURL *curl;
CURLcode res;
curl = curl_easy_init();
if (curl) {
// curl_easy_setopt(curl, CURLOPT_SSL_VERIFYPEER, 0L); //only for https
// curl_easy_setopt(curl, CURLOPT_SSL_VERIFYHOST, 0L); //only for https
curl_easy_setopt(curl, CURLOPT_URL, sURL.c_str());
curl_easy_setopt(curl, CURLOPT_UNIX_SOCKET_PATH, m_sDockerUnixSocketPath.c_str());
curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, WsjcppDockerApi_CurlWrite_CallbackFunc_DataToStr);
curl_easy_setopt(curl, CURLOPT_WRITEDATA, &readBuffer);
curl_easy_setopt(curl, CURLOPT_USERAGENT, sUserAgent.c_str());
curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L);
curl_easy_setopt(curl, CURLOPT_MAXREDIRS, 50L);
// curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L);
res = curl_easy_perform(curl);
if (res != CURLE_OK) {
WsjcppLog::err(TAG, "Curl failed, reason " + std::string(curl_easy_strerror(res)));
curl_easy_cleanup(curl);
return false;
} else {
long response_code;
curl_easy_getinfo(curl, CURLINFO_RESPONSE_CODE, &response_code);
if (response_code != 200) {
WsjcppLog::info(TAG, "end " + std::to_string(response_code));
// TODO remove file
curl_easy_cleanup(curl);
return false;
}
}
// always cleanup
curl_easy_cleanup(curl);
}
sResponse = readBuffer;
// WsjcppLog::info(TAG, "Response: " + readBuffer);
return true;
}
// ---------------------------------------------------------------------
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