From 6ff86dcc44f0033d9ce29c3cc58d6ba05c9878d5 Mon Sep 17 00:00:00 2001 From: NunoSempere Date: Sat, 17 Dec 2022 20:47:44 +0100 Subject: feat: redirect websites to open-source frontends 1. Adds code for redirecting annoying websites to their open-source frontends, when these exist. 2. Organize this in a "plugins" folder --- plugins/libre_redirect/libre_redirect.c | 69 +++++++++++++++++++++ plugins/libre_redirect/libre_redirect.h | 9 +++ plugins/libre_redirect/str_replace_start.c | 60 ++++++++++++++++++ plugins/libre_redirect/str_replace_start.h | 6 ++ .../str_replace_test/build-example.sh | 11 ++++ plugins/libre_redirect/str_replace_test/example | Bin 0 -> 17040 bytes plugins/libre_redirect/str_replace_test/example.c | 20 ++++++ 7 files changed, 175 insertions(+) create mode 100644 plugins/libre_redirect/libre_redirect.c create mode 100755 plugins/libre_redirect/libre_redirect.h create mode 100755 plugins/libre_redirect/str_replace_start.c create mode 100755 plugins/libre_redirect/str_replace_start.h create mode 100644 plugins/libre_redirect/str_replace_test/build-example.sh create mode 100755 plugins/libre_redirect/str_replace_test/example create mode 100644 plugins/libre_redirect/str_replace_test/example.c diff --git a/plugins/libre_redirect/libre_redirect.c b/plugins/libre_redirect/libre_redirect.c new file mode 100644 index 0000000..b9da2b1 --- /dev/null +++ b/plugins/libre_redirect/libre_redirect.c @@ -0,0 +1,69 @@ +#include "str_replace_start.h" +#include +#include +#include +#define LIBRE_N 19 +#define DEBUG false + +/* Inspired by https://libredirect.github.io/, but in C. */ + +void str_init(char* str, int n){ + for(int i=0; i + +int libre_redirect(const char* uri, char* output){ + int l1 = strlen(uri); + int l2 = strlen(output); + + if((l2 - l1) < LIBRE_N){ + if(DEBUG) printf("Not enough memory\n"); + return 1; // not enough memory. + }else{ + char tmp_uri[l2++]; + char tmp_output[l2++]; + strcpy(tmp_uri, uri); // strcpy also copies the terminating '\0' + strcpy(tmp_output, output); + + char* annoying_sites[] = { + "https://www.youtube.com", + "https://www.reddit.com", + "https://medium.com", + "https://translate.google.com", + "https://forum.effectivealtruism.org", + "https://www.bloomberg.com", + "https://twitter.com" + }; + char* alternatives[] = { + "https://yt.artemislena.eu", + "https://teddit.nunosempere.com", + "https://scribe.rip", + "https://simplytranslate.org/", + "https://ea.greaterwrong.com", + "https://archive.is/https://www.bloomberg.com", + "https://nitter.net" + }; + int n = sizeof(annoying_sites)/sizeof(annoying_sites[0]); + for(int i=0; i +#include +#include +#define DEBUG false + +/* +See also: +* +* https://github.com/irl/la-cucina/blob/master/str_replace.c +*/ + +int str_replace_start(const char* string, const char* target, const char* replacement, char* output){ + + int l1 = strlen(string); + int l2 = strlen(target); + int l3 = strlen(replacement); + int l4 = strlen(output); + if(DEBUG) printf("%d,%d,%d,%d\n", l1, l2, l3, l4); + // if(DEBUG) printf("%s,%s,%s,%s\n", string, target, replacement, output); + + if((l4 < (l1 - l2 + l3)) || l4 < l1 ){ + // Not enough memory in output string. + if(DEBUG) printf("String not long enough.\n"); + return 1; + } + /* else if(l1 < l2){ + // Not even possible that there is a match. + if(DEBUG) printf("Target larger than string.\n"); + strcpy(output, string); + } */ + else { + if(DEBUG) printf("Looking for a match for %s in %s.\n", target, string); + int match = true; + for(int i=0; i +#include + +int main(){ + char uri[] = "https://reddit.com/r/blah"; + + int l = LIBRE_N + strlen(uri) + 1; + char uri_filtered[l]; + str_init(uri_filtered, l); + + if(!libre_redirect(uri, uri_filtered)){ + printf("Filtered uri: %s\n", uri_filtered); + }else{ + printf("Uri: %s\n", uri); + // failure; do something with the original uri. + } +} + + -- cgit v1.2.3