c_http_client

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A Simple and efficient HTTP Client for C

c_http_client 최신버젼 다운로드

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#C HTTP Client

**Overview:**

C HTTP Client is a simple HTTP client library for the C programming language created for educational purposes. The library allows users to easily send HTTP requests and handle responses. Please note that the project is still in development and may not be fully functional or secure for production use.

**Features:**

- **HTTP Request Parsing:** The library provides functionality to parse HTTP requests and generate request strings.
- **HTTP Response Parsing:** Users can parse HTTP responses and extract relevant information.
- **TCP-based Client:** A basic TCP client is included for sending HTTP requests and receiving responses.

**Usage:**

1. **HTTP Request:**
    - To create an HTTP request, use the `HTTPRequest` structure to specify the method, path, headers, and body.

Example:
    ```c
    HashTable *headers = createhash();
    HTTPRequest *request = malloc(sizeof(HTTPRequest));

request->body = "test body";
    request->method = "GET";
    request->path = "/";
    request->headers = headers;
    addtohash(headers, "key1", "val1");

```

2. **HTTP Response:**
    - The library supports parsing HTTP responses using the `parse_response` function.
    - The parsed response is stored in the `HTTPResponse` structure, providing access to status codes, headers, and the response body.

Example:
    ```c
    char *response_string = "HTTP/1.1 200 OK\nContent-Type: text/html\n\n<html><body>Hello, World!</body></html>";
    HTTPResponse *response = parse_response(response_string);
    ```

3. **TCP Client:**
    - Use the `shttp` function to send an HTTP request to a specified server and port using a TCP socket.
    - The function returns an `HTTPResponse` structure containing the parsed response.

Example:
    ```c
    HTTPResponse *response = shttp(request, "127.0.0.1", 8080, 0);
    ```

4. **Full Usage:**

```c
// Create and mount the request
HashTable *headers = createhash();
HTTPRequest *request = malloc(sizeof(HTTPRequest));

request->body = "test body";
request->method = "GET";
request->path = "/";
request->headers = headers;
addtohash(headers, "key1", "val1");

// Call the target server
HTTPResponse *response = shttp(request, "127.0.0.1", 8080, 0);

// Use the response
printf("%s\n", response->body);
printf("%d\n", response->status);

kv = (KeyValue *)getfromindex(response->headers, 0);

printf("key: %s\n", kv->key);
printf("val: %s\n", kv->value);
free(request);
destroy_response(response);
```

5. **Full Usage With SSL**

```c
// Incluse SSL libraries
#include <openssl/ssl.h>
#include <openssl/evp.h>
...
// Create and mount the request
HashTable *headers = createhash();
HTTPRequest *request = malloc(sizeof(HTTPRequest));

request->body = "test body";
request->method = "GET";
request->path = "/";
request->headers = headers;
addtohash(headers, "key1", "val1");

// Call the target server
HTTPResponse *response = shttp(request, "127.0.0.1", 8080, 1);

// Use the response
printf("%s\n", response->body);
printf("%d\n", response->status);

kv = (KeyValue *)getfromindex(response->headers, 0);

printf("key: %s\n", kv->key);
printf("val: %s\n", kv->value);
destroy_response(response);
free(request);
```

*Don't forget to link `-lcrypto` and `-lss` when compiling.*

**Building:**

The library can be integrated into your C project by including the necessary header files and source files.

**Next Steps and Improvements:**

- [x] **Support for TLS/SSL Security:** Enhance the library to support secure communication using TLS/SSL.
- [ ] **Support for Encoded Responses:** Implement support for decoding various content encodings in HTTP responses.
- [ ] **Support for Cache:** Integrate caching mechanisms to improve performance and reduce redundant requests.

**Contributions:**

Contributions to the project are welcome. If you find any issues, have feature requests, or want to contribute to the development, please create an issue or submit a pull request.

**License:**

This project is licensed under the MIT License.

**Disclaimer:**

Aria's C HTTP Client is still in development, and its features may be subject to change. Use it at your own discretion.

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