| 218 | // Called once to initialize the background script |
| 219 | // |
| 220 | backgroundSetup() { |
| 221 | browser.storage.onChanged.addListener((dict, area) => { |
| 222 | if (area !== "sync" || !('id' in dict)) |
| 223 | return |
| 224 | |
| 225 | // Only handle messages from other IDs. |
| 226 | let sender = this.decode(dict.id.newValue) |
| 227 | if (sender[0] === this.id) |
| 228 | return |
| 229 | |
| 230 | let changes = {} |
| 231 | for (let path in dict) |
| 232 | changes[path] = dict[path].newValue |
| 233 | this.onSync(changes) |
| 234 | }) |
| 235 | |
| 236 | window.addEventListener('message', e => { |
| 237 | let {url, tasks, error} = this.decode(e.data) |
| 238 | this.scraper.updateWatch(url, tasks, error) |
| 239 | }, false) |
| 240 | |
| 241 | let extUrl = browser.extension.getURL("/") |
| 242 | let rewriteUserAgentHeader = e => { |
| 243 | // console.log(e) |
| 244 | let initiator = e.initiator || e.originUrl |
| 245 | if (e.tabId === -1 && initiator && extUrl && (initiator + "/").startsWith(extUrl)) { |
| 246 | let hdrs = [], ua = null |
| 247 | for (var header of e.requestHeaders) { |
| 248 | let name = header.name.toLowerCase() |
| 249 | if (name === "x-fc-user-agent") { |
| 250 | ua = header |
| 251 | } else if (name !== "user-agent") { |
| 252 | hdrs.push(header) |
| 253 | } |
| 254 | } |
| 255 | |
| 256 | if (ua !== null) { |
| 257 | hdrs.push({name: 'User-Agent', value: ua.value}) |
| 258 | return {requestHeaders: hdrs} |
| 259 | } |
| 260 | } |
| 261 | return {requestHeaders: e.requestHeaders} |
| 262 | } |
| 263 | |
| 264 | // |
| 265 | // Open Fraidycat if the extension icon or the "Follow" icon is clicked. |
| 266 | // |
| 267 | browser.browserAction.onClicked.addListener(tab => { |
| 268 | browser.tabs.create({url: homepage}) |
| 269 | }) |
| 270 | |
| 271 | // browser.pageAction.onClicked.addListener(tab => { |
| 272 | // browser.tabs.create({url: homepage + "#!/add?url=" + |
| 273 | // encodeURIComponent(tab.url)}) |
| 274 | // }) |
| 275 | |
| 276 | browser.webRequest.onBeforeSendHeaders.addListener(rewriteUserAgentHeader, |
| 277 | {urls: ["<all_urls>"], types: ["xmlhttprequest"]}, ["blocking", "requestHeaders"]) |