From 306cf74eb0101a12b51549866a4d60296618ee0b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?=EA=A6=8C=EA=A6=AB=EA=A6=B6=EA=A6=8F=EA=A7=80=EA=A6=A6?= =?UTF-8?q?=EA=A6=BF=EA=A6=A7=EA=A6=AE=EA=A6=91=EA=A6=A9=EA=A6=AD=EA=A7=80?= Date: Wed, 14 Sep 2022 18:19:14 +0800 Subject: OAuth part The minimum to pass all authentications and arrive at the embedded app index. This library is to be used with shopify-app-template-c for now, as it assumes the existence of shopify.app.toml in the parent directory, and index.html in the frontend directory. --- request.h | 46 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 request.h (limited to 'request.h') diff --git a/request.h b/request.h new file mode 100644 index 0000000..7c8fe99 --- /dev/null +++ b/request.h @@ -0,0 +1,46 @@ +#include + +#define TOKEN_URL "https://%s/oauth/access_token" +#define TOKEN_URL_LEN strlen(TOKEN_URL) - strlen("%s") + +#define TOKEN_POST "client_id=%s&client_secret=%s&code=%s" +#define TOKEN_POST_LEN strlen(TOKEN_POST) - strlen("%s") * 3 + +static inline void request_init() +{ + curl_global_init(CURL_GLOBAL_DEFAULT); +} + +static size_t append(char *data, size_t size, size_t nmemb, char **tok) +{ + size_t realsize = size * nmemb; + size_t tok_len = *tok ? strlen(*tok) : 0; + *tok = realloc(*tok, tok_len + realsize + 1); + strlcpy(&(*tok)[tok_len], data, realsize + 1); + return realsize; +} + +static inline void request_token(const char *host, const char *key, + const char *secret_key, const char *code, char **tok) +{ + CURL *curl = curl_easy_init(); + char url[TOKEN_URL_LEN + strlen(host) + 1]; + sprintf(url, TOKEN_URL, host); + curl_easy_setopt(curl, CURLOPT_URL, url); + char post[TOKEN_POST_LEN + strlen(key) + strlen(secret_key) + + strlen(code) + 1]; + sprintf(post, TOKEN_POST, key, secret_key, code); + curl_easy_setopt(curl, CURLOPT_POSTFIELDS, post); + curl_easy_setopt(curl, CURLOPT_WRITEDATA, tok); + curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, append); +#ifdef DEBUG + curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L); +#endif + curl_easy_perform(curl); + curl_easy_cleanup(curl); +} + +static inline void request_cleanup() +{ + curl_global_cleanup(); +} -- cgit v1.2.3