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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 | 87x 87x 87x 87x 87x 78x 78x 78x 78x 78x 78x 78x 78x 1x | import { HttpClient, HttpEvent } from '@angular/common/http';
import { Injectable } from '@angular/core';
import { catchError, map, Observable, of, throwError } from 'rxjs';
import { mapRef, Ref } from '../../model/ref';
import { Resource } from '../../model/resource';
import { catchAll } from '../../mods/sync/scrape';
import { Store } from '../../store/store';
import { getSearchParams, params, sanitizePath } from '../../util/http';
import { ConfigService } from '../config.service';
import { LoginService } from '../login.service';
import { RefService } from './ref.service';
@Injectable({
providedIn: 'root',
})
export class ProxyService {
private cacheList = new Set<string>();
private scraping: Ref[] = [];
constructor(
private http: HttpClient,
private config: ConfigService,
private store: Store,
private refs: RefService,
private login: LoginService,
) {
store.eventBus.events.subscribe(event => {
Iif (event.event === '_plugin/cache:clear-cache') {
this.clearDeleted(store.account.origin).subscribe();
}
});
}
private get base() {
return this.config.api + '/api/v1/proxy';
}
prefetch(url: string, origin = '', filename = 'file') {
if (url.startsWith('data:')) return;
if (this.cacheList.has(origin + url)) return;
this.cacheList.add(origin + url);
const s = () => {
this.http.get(`${this.base}/prefetch/${sanitizePath(this.scraping[0]?.title?.trim() || this.scraping[0].url)}`, {
params: params({ url: this.scraping[0].url, origin: this.scraping[0].origin }),
}).pipe(
catchError(() => of(null)),
).subscribe(() => {
this.scraping.shift();
if (this.scraping.length) s();
});
};
this.scraping.push({ url, origin, title: filename });
if (this.scraping.length === 1) s();
}
fetch(url: string, origin = '', filename = 'file', thumbnail?: boolean): Observable<Resource> {
this.cacheList.add(origin + url);
return this.http.get(thumbnail ? this.base : `${this.base}/${sanitizePath(filename)}`, {
params: params({ url, origin, thumbnail }),
observe: 'response',
responseType: 'arraybuffer',
}).pipe(
map(req => ({
url: this.getFetch(url, origin, filename, thumbnail),
mimeType: req.headers.get('Content-Type'),
data: req.body
})),
catchError(err => this.login.handleHttpError(err)),
);
}
download(url: string, origin = '', filename = 'file'): Observable<{ blob: Blob, name: string }> {
return this.http.get(`${this.base}/${sanitizePath(filename)}`, {
params: params({ url, origin }),
observe: 'response',
responseType: 'blob',
}).pipe(
map(res => {
let name = '';
const disposition = res.headers.get('Content-Disposition') || res.headers.get('content-disposition');
if (disposition) {
const filenameStarRegex = /filename\*=\s*([^\s;]+)/i;
const filenameRegex = /filename=\s*((['"]).*?\2|[^;\n]*)/i;
const starMatch = filenameStarRegex.exec(disposition);
const standardMatch = filenameRegex.exec(disposition);
if (starMatch?.[1]) {
const rawValue = starMatch[1];
const cleanValue = rawValue.replace(/^utf-8''/i, '');
name = decodeURIComponent(cleanValue);
} else if (standardMatch?.[1]) {
name = standardMatch[1].replace(/['"]/g, '');
}
}
return {
blob: res.body || new Blob(),
name: name || filename || 'file'
};
}),
catchError(err => this.login.handleHttpError(err))
);
}
save(file: File, origin = ''): Observable<HttpEvent<Ref>> {
return this.http.post(`${this.base}`, file, {
params: params({ title: file.name, mime: file.type, origin }),
reportProgress: true,
observe: 'events',
}).pipe(
map(res => res as HttpEvent<Ref>),
map(res => {
// @ts-ignore
if ('body' in res && res.body) res.body = mapRef(res.body);
return res;
}),
catchError(err => this.login.handleHttpError(err)),
);
}
getFetch(url: string, origin = '', filename = 'file', thumbnail = false, prefetch = true) {
if (!url) return '';
if (url.startsWith('data:')) return url;
if (prefetch && this.config.prefetch && this.store.account.user) this.prefetch(url, origin, filename);
if (thumbnail) return `${this.base}?thumbnail=true&url=${encodeURIComponent(url)}&origin=${origin}`;
return `${this.base}/${sanitizePath(filename.trim())}?url=${encodeURIComponent(url)}&origin=${origin}`;
}
isProxied(url?: string) {
return url && url.startsWith(this.base) && getSearchParams(url).get('url');
}
defaults(): Observable<any> {
return this.refs.update(catchAll);
}
clearDeleted(origin: string) {
return this.http.delete(this.base, {
params: { origin },
}).pipe(
catchError(err => this.login.handleHttpError(err)),
catchError(err => {
// TODO: Better error message
alert(err.message);
return throwError(() => err);
}),
);
}
}
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