编辑代码

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <stdbool.h>

#define MAX_LEN 256

typedef struct {
    char username[MAX_LEN];
    char password[MAX_LEN];
    char ip[MAX_LEN];
    char port[MAX_LEN];
    char filepath[MAX_LEN];
    char filename[MAX_LEN];
    bool is_valid;  // 新增字段表示提取是否成功
} FTPComponents;

bool splitFTPUrl(const char* url, FTPComponents* components) {
    // 初始化结构体
    memset(components, 0, sizeof(FTPComponents));
    components->is_valid = false;

    if (url == NULL || strlen(url) == 0) {
        return false;
    }

    char temp[MAX_LEN * 2];
    strncpy(temp, url, sizeof(temp) - 1);
    temp[sizeof(temp) - 1] = '\0';

    // 检查协议头
    if (strncmp(temp, "ftp://", 6) != 0) {
        return false;
    }

    // 提取用户名和密码
    char* atSign = strstr(temp, "://");
    if (atSign == NULL) {
        return false;
    }
    
    *atSign = '\0';
    char* creds = temp + 6; // 跳过"ftp://"
    
    char* colon = strchr(creds, ':');
    if (colon == NULL) {
        return false;
    }
    
    *colon = '\0';
    strncpy(components->username, creds, MAX_LEN - 1);
    
    char* at = strchr(colon + 1, '@');
    if (at == NULL) {
        return false;
    }
    
    *at = '\0';
    strncpy(components->password, colon + 1, MAX_LEN - 1);
    char* rest = at + 1;
    
    // 提取IP地址和端口
    char* portColon = strchr(rest, ':');
    if (portColon == NULL) {
        return false;
    }
    
    *portColon = '\0';
    strncpy(components->ip, rest, MAX_LEN - 1);
    
    char* slash = strchr(portColon + 1, '/');
    if (slash == NULL) {
        return false;
    }
    
    *slash = '\0';
    strncpy(components->port, portColon + 1, MAX_LEN - 1);
    char* path = slash + 1;
    
    // 提取文件路径和文件名
    char* lastSlash = strrchr(path, '/');
    if (lastSlash == NULL) {
        // 没有路径，只有文件名
        strncpy(components->filepath, "", MAX_LEN - 1);
        strncpy(components->filename, path, MAX_LEN - 1);
    } else {
        *lastSlash = '\0';
        strncpy(components->filepath, path, MAX_LEN - 1);
        strncpy(components->filename, lastSlash + 1, MAX_LEN - 1);
    }
    
    // 验证所有必要字段都已提取
    if (strlen(components->username) == 0 || 
        strlen(components->password) == 0 ||
        strlen(components->ip) == 0 ||
        strlen(components->port) == 0 ||
        strlen(components->filename) == 0) {
        return false;
    }

    components->is_valid = true;
    return true;
}

int main() {
    const char* ftpUrl = "ftp://cdpt:cdpt2024@8.210.150.0:21/SAC/SAC/V1513/S-AC-V1513G-00-33212-803.040.13-LOG_Release_APP_25.03.18_01_CRC.bin";
    FTPComponents components;
    
    if (splitFTPUrl(ftpUrl, &components)) {
        printf("Extraction successful!\n");
        printf("Username: %s\n", components.username);
        printf("Password: %s\n", components.password);
        printf("IP Address: %s\n", components.ip);
        printf("Port: %s\n", components.port);
        printf("File Path: %s\n", components.filepath);
        printf("Filename: %s\n", components.filename);
    } else {
        printf("Extraction failed! Invalid FTP URL format.\n");
        if (strlen(components.username) > 0) {
            printf("Partial extraction results:\n");
            printf("Username: %s\n", components.username);
            printf("Password: %s\n", components.password);
            printf("IP Address: %s\n", components.ip);
            printf("Port: %s\n", components.port);
            printf("File Path: %s\n", components.filepath);
            printf("Filename: %s\n", components.filename);
        }
    }
    
    return 0;
}