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Update version to 0.3.9 in README.md and buildspec.json; add availabl… (
#184) * Update version to 0.3.9 in README.md and buildspec.json; add available versions section for clarity * Add support for custom API translation provider and update configuration options * Enable ccache support in CMake build scripts for improved build performance * Add status message for detected ccache in CMake build scripts
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,112 @@ | ||
| #include "custom-api.h" | ||
| #include "curl-helper.h" | ||
| #include <nlohmann/json.hpp> | ||
| #include <sstream> | ||
| #include <regex> | ||
| #include <stdexcept> | ||
|
|
||
| using json = nlohmann::json; | ||
|
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| CustomApiTranslator::CustomApiTranslator(const std::string &endpoint, | ||
| const std::string &body_template, | ||
| const std::string &response_json_path) | ||
| : endpoint_(endpoint), | ||
| body_template_(body_template), | ||
| response_json_path_(response_json_path), | ||
| curl_helper_(std::make_unique<CurlHelper>()) | ||
| { | ||
| } | ||
|
|
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| CustomApiTranslator::~CustomApiTranslator() = default; | ||
|
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| std::string CustomApiTranslator::translate(const std::string &text, const std::string &target_lang, | ||
| const std::string &source_lang) | ||
| { | ||
| // first encode text to JSON compatible string | ||
| nlohmann::json tmp = text; | ||
| std::string textStr = tmp.dump(); | ||
| // remove '"' from the beginning and end of the string | ||
| textStr = textStr.substr(1, textStr.size() - 2); | ||
| // then replace the placeholders in the body template | ||
| std::unordered_map<std::string, std::string> values = { | ||
| {"\\{\\{sentence\\}\\}", textStr}, | ||
| {"\\{\\{target_lang\\}\\}", target_lang}, | ||
| {"\\{\\{source_lang\\}\\}", source_lang}}; | ||
|
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| std::string body = replacePlaceholders(body_template_, values); | ||
| std::string response; | ||
|
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| std::unique_ptr<CURL, decltype(&curl_easy_cleanup)> curl(curl_easy_init(), | ||
| curl_easy_cleanup); | ||
|
|
||
| if (!curl) { | ||
| throw std::runtime_error("Failed to initialize CURL session"); | ||
| } | ||
|
|
||
| try { | ||
| // Set up curl options | ||
| curl_easy_setopt(curl.get(), CURLOPT_URL, endpoint_.c_str()); | ||
| curl_easy_setopt(curl.get(), CURLOPT_WRITEFUNCTION, CurlHelper::WriteCallback); | ||
| curl_easy_setopt(curl.get(), CURLOPT_WRITEDATA, &response); | ||
| curl_easy_setopt(curl.get(), CURLOPT_SSL_VERIFYPEER, 1L); | ||
| curl_easy_setopt(curl.get(), CURLOPT_SSL_VERIFYHOST, 2L); | ||
| curl_easy_setopt(curl.get(), CURLOPT_TIMEOUT, 30L); | ||
|
|
||
| // Set up POST request | ||
| curl_easy_setopt(curl.get(), CURLOPT_POST, 1L); | ||
| curl_easy_setopt(curl.get(), CURLOPT_POSTFIELDS, body.c_str()); | ||
|
|
||
| // Set up headers | ||
| struct curl_slist *headers = nullptr; | ||
| headers = curl_slist_append(headers, "Content-Type: application/json"); | ||
| curl_easy_setopt(curl.get(), CURLOPT_HTTPHEADER, headers); | ||
|
|
||
| // Perform request | ||
| CURLcode res = curl_easy_perform(curl.get()); | ||
|
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| // Clean up headers | ||
| curl_slist_free_all(headers); | ||
|
|
||
| if (res != CURLE_OK) { | ||
| throw TranslationError(std::string("CURL request failed: ") + | ||
| curl_easy_strerror(res)); | ||
| } | ||
|
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| return parseResponse(response); | ||
|
|
||
| } catch (const std::exception &e) { | ||
| throw TranslationError(std::string("JSON parsing error: ") + e.what()); | ||
| } | ||
| } | ||
|
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| std::string CustomApiTranslator::replacePlaceholders( | ||
| const std::string &template_str, | ||
| const std::unordered_map<std::string, std::string> &values) const | ||
| { | ||
| std::string result = template_str; | ||
| for (const auto &pair : values) { | ||
| try { | ||
| std::regex placeholder(pair.first); | ||
| result = std::regex_replace(result, placeholder, pair.second); | ||
| } catch (const std::regex_error &e) { | ||
| // Handle regex error | ||
| throw TranslationError(std::string("Regex error: ") + e.what()); | ||
| } | ||
| } | ||
| return result; | ||
| } | ||
|
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| std::string CustomApiTranslator::parseResponse(const std::string &response_str) | ||
| { | ||
| try { | ||
| // parse the JSON response | ||
| json response = json::parse(response_str); | ||
|
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| // extract the translation from the JSON response | ||
| std::string response_out = response[response_json_path_]; | ||
|
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| return response_out; | ||
| } catch (const json::exception &e) { | ||
| throw TranslationError(std::string("JSON parsing error: ") + e.what()); | ||
| } | ||
| } |
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