增加对gemini的支持

[JamesW99]

gemini已经完全兼容了openai的请求格式 https://ai.google.dev/gemini-api/docs/openai#node.js_3

是否可以增加对gemini的支持？主要是gemini-1.5-flash

谢谢

[Ideenaster]

自己改改能用得了哥们，人家八月的PR都没人理的，eg.This Fork

[RYQ-22]

或者也可以试试这个gemini api转openai api的项目: openai-gemini
只用改一下info.json文件就可以直接用了

[gaivrt]

自己改改能用得了哥们，人家八月的PR都没人理的，eg.This Fork

改半天没搞好，也不能debug不知道错在哪。

[suibianzai]

自己改改能用得了哥们，人家八月的PR都没人理的，eg.This Fork

你好 谢谢分享 能问下请求路径和prompt怎么设置吗？
地址是https://generativelanguage.googleapis.com/v1beta/models吗？

[coveonyx]

• info.json

{
  "id": "plugin.com.pot-app.ocr_gemini_openai",
  "plugin_type": "recognize",
  "icon": "gemini.svg",
  "display": "Gemini (OpenAI 兼容)",
  "homepage": "https://www.bilibili.com/video/BV1UT42167xb",
  "needs": [
    {
      "key": "requestPath",
      "display": "请求路径",
      "type": "input"
    },
    {
      "key": "apiKey",
      "display": "API Key",
      "type": "input"
    },
    {
      "key": "customPrompt",
      "display": "自定义系统提示词",
      "type": "input"
    },
    {
      "key": "model",
      "display": "模型",
      "type": "input"
    },
    {
      "key": "reasoning_effort",
      "display": "思考预算",
      "type": "select",
      "options": {
        "none": "关",
        "low": "低 (1024)",
        "medium": "中 (8192)",
        "high": "高 (24576)"
      }
    }
  ],
  "language": {
    "auto": "Auto",
    "zh_cn": "Simplified Chinese",
    "zh_tw": "Traditional Chinese",
    "yue": "Cantonese",
    "ja": "Japanese",
    "en": "English",
    "ko": "Korean",
    "fr": "French",
    "es": "Spanish",
    "ru": "Russian",
    "de": "German",
    "it": "Italian",
    "tr": "Turkish",
    "pt_pt": "Portuguese",
    "pt_br": "Brazilian Portuguese",
    "vi": "Vietnamese",
    "id": "Indonesian",
    "th": "Thai",
    "ms": "Malay",
    "ar": "Arabic",
    "hi": "Hindi",
    "mn_mo": "Mongolian",
    "mn_cy": "Mongolian(Cyrillic)",
    "km": "Khmer",
    "nb_no": "Norwegian Bokmål",
    "nn_no": "Norwegian Nynorsk",
    "fa": "Persian",
    "sv": "Swedish",
    "pl": "Polish",
    "nl": "Dutch",
    "uk": "Ukrainian"
  }
}

• main.js

async function recognize(base64, lang, options) { 
    const { config, utils } = options;
    const { tauriFetch: fetch } = utils;
    let { model, apiKey, requestPath, customPrompt, reasoning_effort } = config;
    if (!requestPath) {
        requestPath = "https://generativelanguage.googleapis.com";
    }
    if (!/https?:\/\/.+/.test(requestPath)) {
        requestPath = `https://${requestPath}`;
    }
    if (requestPath.endsWith('/')) {
        requestPath = requestPath.slice(0, -1);
    }
    if (!requestPath.endsWith('/chat/completions')) {
        requestPath += '/v1beta/openai/chat/completions';
    }
    if (!customPrompt) {
        customPrompt = "You are a professional OCR text recognition tool. Please strictly adhere to the following rules:\n1.Only output the actual text present in the image, without adding any explanations, comments, or extra content.\n2.Maintain the original format, line breaks, indentation, punctuation, etc., exactly as they are.\n3.For text that is difficult to recognize, use [...] to indicate it, and do not guess or supplement.\n4.If it is a table, maintain the original table structure as much as possible.\n5.If it is code, keep the original code format.\n6.If it includes mathematical formulas, use LaTeX format and wrap it with $$.\n7.If the content contains multiple languages, accurately recognize and maintain the original languages.\n8.If there are punctuation marks, maintain their original usage.\n9.If there are special symbols or formulas, ensure accurate conversion to their corresponding formats.\n10.Do not make any modifications, polishing, or reorganization of the text content.";
    }else{
        customPrompt = customPrompt.replaceAll("$lang", lang);
    }
    if (!model) {
        model = "gemini-2.5-flash";
    }
    const headers = {
        'Content-Type': 'application/json',
        'Authorization': `Bearer ${apiKey}`
    }
    const body = {
        model,
        messages: [
            {
                "role": "system",
                "content": [
                    {
                        "type": "text",
                        "text": customPrompt
                    }
                ],
            },
            {
                "role": "user",
                "content": [
                    {
                        "type": "image_url",
                        "image_url": {
                            "url": `data:image/png;base64,${base64}`,
                        },
                    },
                ],
            }
        ],
    }
    
    if (!(model.includes("2.5-pro") && reasoning_effort === 'none')) {
        body.reasoning_effort = reasoning_effort;
    }
    
    let res = await fetch(requestPath, {
        method: 'POST',
        url: requestPath,
        headers: headers,
        body: {
            type: "Json",
            payload: body
        }
    });
    if (res.ok) {
        let result = res.data;
        return result.choices[0].message.content;
    } else {
        throw `异常响应\n状态码: ${res.status}\n响应体: \n${JSON.stringify(res.data)}`;
    }
}