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253 lines
12 KiB
Markdown
253 lines
12 KiB
Markdown
# FlareSolverr
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[](https://github.com/FlareSolverr/FlareSolverr/releases)
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[](https://hub.docker.com/r/flaresolverr/flaresolverr/)
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[](https://github.com/FlareSolverr/FlareSolverr/issues)
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[](https://github.com/FlareSolverr/FlareSolverr/pulls)
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[](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=X5NJLLX5GLTV6&source=url)
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[](https://en.cryptobadges.io/donate/13Hcv77AdnFWEUZ9qUpoPBttQsUT7q9TTh)
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[](https://en.cryptobadges.io/donate/0x0D1549BbB00926BF3D92c1A8A58695e982f1BE2E)
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FlareSolverr is a proxy server to bypass Cloudflare and DDoS-GUARD protection.
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## How it works
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FlareSolverr starts a proxy server, and it waits for user requests in an idle state using few resources.
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When some request arrives, it uses [puppeteer](https://github.com/puppeteer/puppeteer) with the
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[stealth plugin](https://github.com/berstend/puppeteer-extra/tree/master/packages/puppeteer-extra-plugin-stealth)
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to create a headless browser (Firefox). It opens the URL with user parameters and waits until the Cloudflare challenge
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is solved (or timeout). The HTML code and the cookies are sent back to the user, and those cookies can be used to
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bypass Cloudflare using other HTTP clients.
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**NOTE**: Web browsers consume a lot of memory. If you are running FlareSolverr on a machine with few RAM, do not make
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many requests at once. With each request a new browser is launched.
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It is also possible to use a permanent session. However, if you use sessions, you should make sure to close them as
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soon as you are done using them.
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## Installation
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### Docker
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It is recommended to install using a Docker container because the project depends on an external browser that is
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already included within the image.
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Docker images are available in:
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* GitHub Registry => https://github.com/orgs/FlareSolverr/packages/container/package/flaresolverr
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* DockerHub => https://hub.docker.com/r/flaresolverr/flaresolverr
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Supported architectures are:
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| Architecture | Tag |
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| :----: | --- |
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| x86-64 | linux/amd64 |
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| ARM64 | linux/arm64 |
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| ARM32 | linux/arm/v7 |
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We provide a `docker-compose.yml` configuration file. Clone this repository and execute `docker-compose up -d` to start
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the container.
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If you prefer the `docker cli` execute the following command.
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```bash
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docker run -d \
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--name=flaresolverr \
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-p 8191:8191 \
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-e LOG_LEVEL=info \
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--restart unless-stopped \
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ghcr.io/flaresolverr/flaresolverr:latest
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```
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If your host OS is Debian, make sure `libseccomp2` version is 2.5.x. You can check the version with `sudo apt-cache policy libseccomp2`
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and update the package with `sudo apt install libseccomp2=2.5.1-1~bpo10+1` or `sudo apt install libseccomp2=2.5.1-1+deb11u1`.
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Remember to restart the Docker daemon and the container after the update.
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### Precompiled binaries
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This is the recommended way for Windows users.
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* Download the [FlareSolverr zip](https://github.com/FlareSolverr/FlareSolverr/releases) from the release's assets. It is available for Windows and Linux.
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* Extract the zip file. FlareSolverr executable and firefox folder must be in the same directory.
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* Execute FlareSolverr binary. In the environment variables section you can find how to change the configuration.
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### From source code
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This is the recommended way for macOS users and for developers.
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* Install [NodeJS](https://nodejs.org/) 16.
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* Clone this repository and open a shell in that path.
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* Run `export PUPPETEER_PRODUCT=firefox` (Linux/macOS) or `set PUPPETEER_PRODUCT=firefox` (Windows).
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* Run `npm install` command to install FlareSolverr dependencies.
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* Run `npm start` command to compile TypeScript code and start FlareSolverr.
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If you get errors related to firefox not installed try running `node node_modules/puppeteer/install.js` to install Firefox.
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### Systemd service
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We provide an example Systemd unit file `flaresolverr.service` as reference. You have to modify the file to suit your needs: paths, user and environment variables.
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## Usage
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Example request:
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```bash
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curl -L -X POST 'http://localhost:8191/v1' \
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-H 'Content-Type: application/json' \
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--data-raw '{
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"cmd": "request.get",
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"url":"http://www.google.com/",
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"maxTimeout": 60000
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}'
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```
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### Commands
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#### + `sessions.create`
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This will launch a new browser instance which will retain cookies until you destroy it with `sessions.destroy`.
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This comes in handy, so you don't have to keep solving challenges over and over and you won't need to keep sending
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cookies for the browser to use.
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This also speeds up the requests since it won't have to launch a new browser instance for every request.
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Parameter | Notes
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|--|--|
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session | Optional. The session ID that you want to be assigned to the instance. If isn't set a random UUID will be assigned.
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proxy | Optional, default disabled. Eg: `"proxy": {"url": "http://127.0.0.1:8888"}`. You must include the proxy schema in the URL: `http://`, `socks4://` or `socks5://`. Authorization (username/password) is not supported.
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#### + `sessions.list`
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Returns a list of all the active sessions. More for debugging if you are curious to see how many sessions are running.
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You should always make sure to properly close each session when you are done using them as too many may slow your
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computer down.
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Example response:
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```json
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{
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"sessions": [
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"session_id_1",
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"session_id_2",
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"session_id_3..."
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]
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}
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```
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#### + `sessions.destroy`
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This will properly shutdown a browser instance and remove all files associated with it to free up resources for a new
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session. When you no longer need to use a session you should make sure to close it.
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Parameter | Notes
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|--|--|
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session | The session ID that you want to be destroyed.
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#### + `request.get`
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Parameter | Notes
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|--|--|
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url | Mandatory
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session | Optional. Will send the request from and existing browser instance. If one is not sent it will create a temporary instance that will be destroyed immediately after the request is completed.
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maxTimeout | Optional, default value 60000. Max timeout to solve the challenge in milliseconds.
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cookies | Optional. Will be used by the headless browser. Follow [this](https://github.com/puppeteer/puppeteer/blob/v3.3.0/docs/api.md#pagesetcookiecookies) format.
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returnOnlyCookies | Optional, default false. Only returns the cookies. Response data, headers and other parts of the response are removed.
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proxy | Optional, default disabled. Eg: `"proxy": {"url": "http://127.0.0.1:8888"}`. You must include the proxy schema in the URL: `http://`, `socks4://` or `socks5://`. Authorization (username/password) is not supported. (When the `session` parameter is set, the proxy is ignored; a session specific proxy can be set in `sessions.create`.)
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:warning: If you want to use Cloudflare clearance cookie in your scripts, make sure you use the FlareSolverr User-Agent too. If they don't match you will see the challenge.
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Example response from running the `curl` above:
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```json
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{
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"solution": {
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"url": "https://www.google.com/?gws_rd=ssl",
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"status": 200,
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"headers": {
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"status": "200",
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"date": "Thu, 16 Jul 2020 04:15:49 GMT",
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"expires": "-1",
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"cache-control": "private, max-age=0",
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"content-type": "text/html; charset=UTF-8",
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"strict-transport-security": "max-age=31536000",
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"p3p": "CP=\"This is not a P3P policy! See g.co/p3phelp for more info.\"",
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"content-encoding": "br",
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"server": "gws",
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"content-length": "61587",
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"x-xss-protection": "0",
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"x-frame-options": "SAMEORIGIN",
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"set-cookie": "1P_JAR=2020-07-16-04; expires=Sat..."
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},
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"response":"<!DOCTYPE html>...",
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"cookies": [
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{
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"name": "NID",
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"value": "204=QE3Ocq15XalczqjuDy52HeseG3zAZuJzID3R57...",
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"domain": ".google.com",
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"path": "/",
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"expires": 1610684149.307722,
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"size": 178,
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"httpOnly": true,
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"secure": true,
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"session": false,
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"sameSite": "None"
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},
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{
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"name": "1P_JAR",
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"value": "2020-07-16-04",
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"domain": ".google.com",
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"path": "/",
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"expires": 1597464949.307626,
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"size": 19,
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"httpOnly": false,
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"secure": true,
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"session": false,
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"sameSite": "None"
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}
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],
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"userAgent": "Windows NT 10.0; Win64; x64) AppleWebKit/5..."
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},
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"status": "ok",
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"message": "",
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"startTimestamp": 1594872947467,
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"endTimestamp": 1594872949617,
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"version": "1.0.0"
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}
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```
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### + `request.post`
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This is the same as `request.get` but it takes one more param:
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Parameter | Notes
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|--|--|
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postData | Must be a string with `application/x-www-form-urlencoded`. Eg: `a=b&c=d`
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## Environment variables
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Name | Default | Notes
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|--|--|--|
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LOG_LEVEL | info | Verbosity of the logging. Use `LOG_LEVEL=debug` for more information.
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LOG_HTML | false | Only for debugging. If `true` all HTML that passes through the proxy will be logged to the console in `debug` level.
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CAPTCHA_SOLVER | none | Captcha solving method. It is used when a captcha is encountered. See the Captcha Solvers section.
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TZ | UTC | Timezone used in the logs and the web browser. Example: `TZ=Europe/London`.
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HEADLESS | true | Only for debugging. To run the web browser in headless mode or visible.
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BROWSER_TIMEOUT | 40000 | If you are experiencing errors/timeouts because your system is slow, you can try to increase this value. Remember to increase the `maxTimeout` parameter too.
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TEST_URL | https://www.google.com | FlareSolverr makes a request on start to make sure the web browser is working. You can change that URL if it is blocked in your country.
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PORT | 8191 | Listening port. You don't need to change this if you are running on Docker.
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HOST | 0.0.0.0 | Listening interface. You don't need to change this if you are running on Docker.
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Environment variables are set differently depending on the operating system. Some examples:
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* Docker: Take a look at the Docker section in this document. Environment variables can be set in the `docker-compose.yml` file or in the Docker CLI command.
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* Linux: Run `export LOG_LEVEL=debug` and then start FlareSolverr in the same shell.
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* Windows: Open `cmd.exe`, run `set LOG_LEVEL=debug` and then start FlareSolverr in the same shell.
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## Captcha Solvers
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:warning: At this time none of the captcha solvers work. You can check the status in the open issues. Any help is welcome.
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Sometimes CloudFlare not only gives mathematical computations and browser tests, sometimes they also require the user to
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solve a captcha.
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If this is the case, FlareSolverr will return the error `Captcha detected but no automatic solver is configured.`
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FlareSolverr can be customized to solve the captchas automatically by setting the environment variable `CAPTCHA_SOLVER`
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to the file name of one of the adapters inside the [/captcha](src/captcha) directory.
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## Related projects
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* C# implementation => https://github.com/FlareSolverr/FlareSolverrSharp
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