diff options
Diffstat (limited to 'plugins/libre_redirect')
-rw-r--r-- | plugins/libre_redirect/libre_redirect.c | 133 | ||||
-rw-r--r--[-rwxr-xr-x] | plugins/libre_redirect/libre_redirect.h | 5 | ||||
-rw-r--r--[-rwxr-xr-x] | plugins/libre_redirect/str_replace_start.c | 13 | ||||
-rw-r--r--[-rwxr-xr-x] | plugins/libre_redirect/str_replace_start.h | 8 | ||||
-rwxr-xr-x | plugins/libre_redirect/str_replace_test/example | bin | 17040 -> 0 bytes | |||
-rw-r--r-- | plugins/libre_redirect/str_replace_test/example.c | 24 |
6 files changed, 96 insertions, 87 deletions
diff --git a/plugins/libre_redirect/libre_redirect.c b/plugins/libre_redirect/libre_redirect.c index b9da2b1..8650326 100644 --- a/plugins/libre_redirect/libre_redirect.c +++ b/plugins/libre_redirect/libre_redirect.c @@ -1,69 +1,84 @@ -#include "str_replace_start.h" #include <string.h> #include <stdio.h> #include <stdbool.h> + +#include "str_replace_start.h" + #define LIBRE_N 19 -#define DEBUG false + +/* Uncomment for debug */ +/* #define DEBUG */ /* Inspired by https://libredirect.github.io/, but in C. */ -void str_init(char* str, int n){ - for(int i=0; i<n; i++){ - str[i] = ' '; - } - str[n] = '\0'; +void str_init(char* str, int n) +{ + for(int i = 0; i < n; i++) + str[i] = ' '; + str[n] = '\0'; } // could also use <https://manpages.ubuntu.com/manpages/impish/man3/strinit.3pub.html> -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<n ; i++){ - int replace_check = str_replace_start(tmp_uri, annoying_sites[i], alternatives[i], output); - if(replace_check == 2){ - if(DEBUG) printf("tmp_uri: %s\n", tmp_uri); - if(DEBUG) printf("output: %s\n", output); - // strcpy(output, tmp_uri); - // break; - return 2; - }else if(replace_check == 1){ - if(DEBUG) printf("replace_check failed\n"); - return 1; - } - strcpy(tmp_uri, output); - str_init(output, l2); - } - strcpy(output, tmp_uri); - } - if(DEBUG) printf("No match found\n\n"); - return 0; - +int libre_redirect(const char* uri, char* output) +{ + int l1 = strlen(uri); + int l2 = strlen(output); + int len; + char tmp_uri[l2++]; + char tmp_output[l2++]; + + if ((l2 - l1) < LIBRE_N) { +#ifdef DEBUG + printf("Not enough memory\n"); +#endif + return 1; // not enough memory. + } else { + 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" + }; + + len = sizeof(annoying_sites) / sizeof(annoying_sites[0]); + + for (int i = 0; i < len; i++) { + int replace_check = str_replace_start(tmp_uri, annoying_sites[i], + alternatives[i], output); + if (replace_check == 2) { +#ifdef DEBUG + printf("tmp_uri: %s\n", tmp_uri); + printf("output: %s\n", output); +#endif + return 2; + } else if (replace_check == 1) { +#ifdef DEBUG + printf("replace_check failed\n"); +#endif + return 1; + } + strcpy(tmp_uri, output); + str_init(output, l2); + } + strcpy(output, tmp_uri); + } +#ifdef DEBUG + printf("No match found\n\n"); +#endif + return 0; } diff --git a/plugins/libre_redirect/libre_redirect.h b/plugins/libre_redirect/libre_redirect.h index aee42f4..150c95e 100755..100644 --- a/plugins/libre_redirect/libre_redirect.h +++ b/plugins/libre_redirect/libre_redirect.h @@ -1,9 +1,6 @@ -#ifndef LIBRE_REDIRECT -#define LIBRE_REDIRECT +#pragma once #define LIBRE_N 19 int libre_redirect(const char* uri, char* uri_filtered); void str_init(char* str, int n); - -#endif diff --git a/plugins/libre_redirect/str_replace_start.c b/plugins/libre_redirect/str_replace_start.c index 74bff65..6bdfc69 100755..100644 --- a/plugins/libre_redirect/str_replace_start.c +++ b/plugins/libre_redirect/str_replace_start.c @@ -1,28 +1,29 @@ #include <string.h> #include <stdbool.h> #include <stdio.h> + #define DEBUG false /* -See also: +See also: * <https://web.archive.org/web/20160201212501/coding.debuntu.org/c-implementing-str_replace-replace-all-occurrences-substring> * 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 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; - } + return 1; + } /* else if(l1 < l2){ // Not even possible that there is a match. if(DEBUG) printf("Target larger than string.\n"); diff --git a/plugins/libre_redirect/str_replace_start.h b/plugins/libre_redirect/str_replace_start.h index d9f1235..78c79b5 100755..100644 --- a/plugins/libre_redirect/str_replace_start.h +++ b/plugins/libre_redirect/str_replace_start.h @@ -1,6 +1,4 @@ -#ifndef STR_REPLACE_H_ -#define STR_REPLACE_H_ +#pragma once -int str_replace_start(const char* string, const char* target, const char* replacement, char* output); - -#endif +int str_replace_start(const char* string, const char* target, + const char* replacement, char* output); diff --git a/plugins/libre_redirect/str_replace_test/example b/plugins/libre_redirect/str_replace_test/example Binary files differdeleted file mode 100755 index 4e80ab8..0000000 --- a/plugins/libre_redirect/str_replace_test/example +++ /dev/null diff --git a/plugins/libre_redirect/str_replace_test/example.c b/plugins/libre_redirect/str_replace_test/example.c index 32285bd..303665e 100644 --- a/plugins/libre_redirect/str_replace_test/example.c +++ b/plugins/libre_redirect/str_replace_test/example.c @@ -3,18 +3,16 @@ #include <stdio.h> 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. - } -} + 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. + } +} |